NATIONAL TECHNICAL REGULATION ON INDUSTRIAL EFFLUENT
Foreword
QCVN 14:2025/BTNMT is developed by the Pollution Control Department, submitted by the Department of Science and Technology for approval; appraised by the Ministry of Science and Technology, and promulgated by the Minister of Natural Resources and Environment together with the Circular No. ……/2025/TT-BTNMT dated … (dd) … (mm), 2025.
QCVN 40:2025/BTNMT supersedes:
QCVN 25:2009/BTNMT - National technical regulation on wastewater of the solid waste landfill;
QCVN 28:2010/BTNMT - National technical regulation on health care wastewater;
QCVN 29:2010/BTNMT - National technical regulation on the effluent of petroleum terminal and stations;
QCVN 40:2011/BTNMT - National technical regulation on industrial wastewater; QCVN 01-MT:2015/BTNMT - National technical regulation on the effluent of natural rubber processing industry;
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QCVN 12-MT:2015/BTNMT - National technical regulation on the effluent of pulp and paper mills;
QCVN 13-MT:2015/BTNMT - National technical regulation on the effluent of textile industry;
QCVN 60-MT:2015/BTNMT - National technical regulation on the effluent of bioethanol processing;
QCVN 63:2017/BTNMT - National technical regulation on effluent discharged from the cassava starch processing factories;
QCVN 52:2017/BTNMT - National technical regulation on wastewater of steel industry.
NATIONAL TECHNICAL REGULATION ON INDUSTRIAL EFFLUENT
1.1. Scope
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1.1.2. This Regulation does not apply to produced water discharged from offshore oil and gas installations; livestock effluent; domestic and municipal wastewater.
1.2. Regulated entities
This Regulation applies to regulatory agencies, organizations and individuals (hereinafter referred to as “organizations and individuals”) related to the discharge of industrial effluent into water receiving bodies.
1.3. Definitions
For the purposes of this Regulation, the terms below shall be construed as follows:
1.3.1. Domestic wastewater means wastewater generated from human activities, including eating, drinking, bathing, laundry and personal hygiene.
1.3.2. Industrial effluent means effluent generated from production, business and service activities specified in Column 2 of Appendix 2 to this Regulation from concentrated production, business and service areas and industrial clusters.
1.3.3. Column A, Column B, Column C (effluent discharge zones) in Table 1 and Table 2 of this Regulation are prescribed as follows:
1.3.3.1. Column A specifies permissible limit values of pollution parameters in effluent when discharged into water receiving bodies having the function of supplying water for domestic purposes or for the purpose of managing and improving water quality to satisfy the requirements of Level A in Table 2 and Table 3 QCVN 08:2023/BTNMT - National technical regulation on surface water quality or regulations of provincial People's Committees.
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1.3.3.3. Column C specifies permissible limit values of pollution parameters in the effluent when discharged into water receiving bodies not falling into the cases specified in 1.3.3.1 and 1.3.3.2 of this Regulation.
1.3.4. Establishments discharging industrial effluent refer to investment projects, production, business and service establishments, concentrated production, business and service areas and industrial clusters that discharge effluent into water receiving bodies.
2.1. Permissible limit values of COD (or TOC), BOD, TSS in industrial effluent
According to the regulations in 1.3.3 of this Regulation and discharge flow, permissible limit values of COD (or TOC), BOD, TSS in industrial effluent when discharged into water receiving bodies are specified in Table 1.
Table 1. Permissible limit values of COD (or TOC), BOD, TSS
No.
Pollution parameter
Unit
...
...
...
F ≤ 2 000
F > 2 000
A
B
C
A
B
C
1
...
...
...
mg/L
≤ 40
≤ 60
≤ 80
≤ 30
≤ 50
≤ 60
2
Chemical oxygen demand (COD)
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...
≤ 65
≤ 90
≤ 130
≤ 60
≤ 70
≤ 90
or Total Organic Carbon (TOC)
mg/L
≤ 35
...
...
...
≤ 75
≤ 25
≤ 40
≤ 50
3
Total Suspended Solids (TSS)
mg/L
≤ 40
≤ 80
...
...
...
≤ 30
≤ 60
≤ 80
Notes: Organizations and individuals may choose to apply TOC or COD.
2.2. Permissible limit values of other pollution parameters in industrial effluent
According to the regulations in 1.3.3 of this Regulation, permissible limit values of pollution parameters specific to each type of production, business or service in industrial effluent when discharged into water receiving bodies are specified in Table 2.
Table 2. Permissible limit values of pollution parameters specific to type of production, business or service
No.
Pollution parameter
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...
A
B
C
1
pH
-
6 - 9
6 - 9
6 - 9
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...
Temperature
oC
≤ 40
≤ 40
≤ 40
3
Total Nitrogen (T-N)
mg/L
≤ 20
...
...
...
≤ 60
4
Total Phosphorus (T-P)
mg/L
4.1
Receiving bodies being lakes, ponds, lagoons (collectively called as “lakes”)
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...
≤ 2,5
≤ 3,0
4.2
Receiving bodies being rivers, streams, creeks, canals, ditches (collectively called as “rivers”), seawater areas: applicable to investment projects and establishments belonging to the type of aquaculture, aquatic product processing, cassava starch processing and natural rubber latex processing
≤ 8,0
≤ 14
≤ 18
4.3
Receiving bodies being rivers, seawater areas: applicable to investment projects and establishments other than those specified in 4.2 of this Table
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...
≤ 6,0
≤ 10
5
Total Coliforms
MPN or
CFU/100 mL
≤ 3 000
≤ 5 000
≤ 5 000
...
...
...
Color
Pt/Co
≤ 50
≤ 100
≤ 150
7
Arsenic (As)
mg/L
≤ 0,05
...
...
...
≤ 0,25
8
Mercury (Hg)
mg/L
≤ 0,001
≤ 0,005
≤ 0,005
9
Lead (Pb)
...
...
...
≤ 0,1
≤ 0,5
≤ 0,5
10
Cadmium (Cd)
mg/L
≤ 0,02
≤ 0,1
≤ 0,1
...
...
...
Chromium VI (Cr6+)
mg/L
≤ 0,1
≤ 0,5
≤ 0,5
12
Total Chromium (Cr)
mg/L
≤ 0,5
...
...
...
≤ 2,0
13
Copper (Cu)
mg/L
≤ 1,0
≤ 3,0
≤ 3,0
14
Zinc (Zn)
...
...
...
≤ 1,0
≤ 5,0
≤ 5,0
15
Nickel (Ni)
mg/L
≤ 0,1
≤ 3,0
≤ 3,0
...
...
...
Manganese (Mn)
mg/L
≤ 2,0
≤ 10
≤ 10
17
Iron (Fe)
mg/L
≤ 2,0
...
...
...
≤ 10
18
Barium (Ba)
mg/L
≤ 1,0
≤ 10
≤ 10
19
Antimony (Sb)
...
...
...
≤ 0,02
≤ 0,2
≤ 0,2
20
Tin (Sn)
mg/L
≤ 0,5
≤ 5,0
≤ 5,0
...
...
...
Selenium (Se)
mg/L
≤ 0,1
≤ 1,0
≤ 1,0
22
Cyanide (CN-)
mg/L
≤ 0,2
...
...
...
≤ 1,0
23
Ammonium (N-NH4+), expressed as N
mg/L
≤ 5,0
≤ 10
≤ 12
24
Phenol (C6H5OH)
...
...
...
≤ 0,1
≤ 0,5
≤ 0,5
25
Total Phenols
mg/L
≤ 1,0
≤ 3,0
≤ 3,0
...
...
...
Mineral oils and fats
mg/L
≤ 1,0
≤ 5,0
≤ 5,0
27
Animal and vegetable oils and fats
mg/L
≤ 5,0
...
...
...
≤ 30
28
Sulfide (S2- )
mg/L
≤ 0,2
≤ 0,5
≤ 1,0
29
Fluoride (F-)
...
...
...
≤ 3,0
≤ 15
≤ 15
30
Chloride (Cl-) (not applicable upon discharge of effluent into saltwater or brackish water)
mg/L
≤ 500
≤ 1 000
≤ 1 000
...
...
...
Chlorine residual
mg/L
≤ 1,0
≤ 2,0
≤ 2,0
32
Total organochlorine pesticides, expressed as constituents: Aldrin, Lindane, Dieldrin, Total DDT (including: DDT, DDD, DDE), Heptachlor & Heptachlor epoxide
mg/L
≤ 0,05
...
...
...
≤ 0,1
33
Total organophosphorus pesticides, expressed as constituents: Dimethoate, Diazinone, Ethyl-parathion, Monocrotophos, Methamidophos, Phosphamidon, Trichlorfon, Disulfoton, Phorate, Methyl-Parathion
mg/L
≤ 0,3
≤ 1,0
≤ 1,0
34
PCB (Polychlorinated biphenyls), expressed as constituents: PCB 28, PCB 52, PCB 101, PCB 138, PCB 153, PCB 180
...
...
...
≤ 0,003
≤ 0,003
≤ 0,003
35
Dioxin/Furan
pgTEQ/L
≤ 10
≤ 10
≤ 10
...
...
...
Absorbable organic halogens (AOX)
mg/L
≤ 7,5
≤ 15
≤ 15
37
Anionic surfactants
mg/L
≤ 3,0
...
...
...
≤ 5,0
38
Pentachlorophenol (C6Cl5OH)
mg/L
≤ 0,001
≤ 0,01
≤ 0,01
39
Trichloroethylene (CH-CCl3)
...
...
...
≤ 0,06
≤ 0,3
≤ 0,3
40
Tetrachloroethylene (C2Cl4)
mg/L
≤ 0,04
≤ 0,1
≤ 0,1
...
...
...
Benzene (C6H6)
mg/L
≤ 0,01
≤ 0,1
≤ 0,1
42
Methylene chloride (Dichloromethane - CH2Cl2)
mg/L
≤ 0,02
...
...
...
≤ 0,2
43
Carbon tetrachloride (CCl4)
mg/L
≤ 0,004
≤ 0,04
≤ 0,04
44
1, 1-dichloroethylene (CH2CCl2)
...
...
...
≤ 0,05
≤ 0,3
≤ 0,3
45
1, 2-dichloroethane (C2H4Cl2)
mg/L
≤ 0,03
≤ 0,3
≤ 0,3
...
...
...
Chloroform (CHCl3)
mg/L
≤ 0,3
≤ 0,8
≤ 0,8
47
1, 4-Dioxane (C4H8O2)
mg/L
≤ 0,05
...
...
...
≤ 4,0
48
Diethylhexylphthalate (DEHP) (C6H4(CO2C8H17)2)
mg/L
< 0,02
<0,2
<0,2
49
Vinyl chloride (CH2=CHCI)
...
...
...
≤ 0,01
≤ 0,5
≤ 0,5
50
Acrylonitrile (CH2CHCN)
mg/L
≤ 0,01
≤ 0,2
≤ 0,2
...
...
...
Bromoform (CHBr3)
mg/L
≤ 0,1
≤ 0,3
≤ 0,3
52
Naphthalene (C10H8)
mg/L
≤ 0,05
...
...
...
≤ 0,5
53
Formaldehyde (HCHO)
mg/L
≤ 1,0
≤ 5,0
≤ 5,0
54
Epichlorohydrin (C3H5CIO)
...
...
...
≤ 0,03
≤ 0,3
≤ 0,3
55
Toluene (C6H5-CH3)
mg/L
≤ 0,7
≤ 7,0
≤ 7,0
...
...
...
Xylene (C6H4(CH3)2)
mg/L
≤ 0,5
≤ 5,0
≤ 5,0
57
Perchlorate (CIO4-)
mg/L
≤ 0,03
...
...
...
≤ 0,3
58
Acrylamide (CH2=CH-CONH2)
mg/L
≤ 0,015
≤ 0,04
≤ 0,04
59
Styrene (C6H5CH=CH2)
...
...
...
<0,02
<0,2
<0,2
60
Bis (2-ethylhexyl) adipate ((CH2CH2CO2C8H17)2)
mg/L
< 0,2
< 2,0
< 2,0
...
...
...
Sulfite (expressed as SO32-)
mg/L
<5,0
< 10
< 15
3.1. Methods and techniques for sampling effluent and determining pollution parameters in effluent are specified in the Appendix 1 to this Regulation.
In case multiple different test (analysis) methods are used to test a pollution parameter and an arbitration method is needed to handle a dispute, complaint or lawsuit, the test method first listed in Column 3 of the Appendix 1 to this Regulation shall be used
3.2. Other test methods (not referred to in Column 3 in the Appendix 1 to this Regulation), including: newly promulgated TCVN; national standard methods of one of the countries in the Group of Seven (G7), European Committee for Standardization (CEN/EN), Standards of the American Society for Testing and Materials (ASTM), member countries of the European Union, South Korea or the International Organization for Standardization (ISO) or Standard Methods for the Examination of Water and Wastewater (SMEWW) may be accepted.
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4.1. Pollution parameters and permissible limit values of pollution parameters in industrial effluent of investment projects and establishments discharging effluent must be indicated in the Decision on approval for result of environmental impact assessment report appraisal, environmental license and environmental protection document, including:
4.1.1. pH, Total Coliforms and pollution parameters are specified in Table 1 of this Regulation.
4.1.2. Pollution parameters specific to each type of production, business or service are provided in Column 4 in the Appendix 2 to this Regulation.
4.1.3. Chloroform, Chlorine in case any investment project or establishment discharging industrial effluent uses Chlorine or Chlorine-based disinfectants.
4.1.4. One or more pollution parameters specified in Table 2 of this Regulation.
4.1.5. New characteristic pollution parameters not specified in Table 1 and Table 2 of this Regulation in case any investment project or establishment has technology or equipment which generates new characteristic pollution parameters.
4.2. Any investment project or establishment which has technology or equipment generating new characteristic pollution parameters not specified in Table 1 and Table 2 of this Regulation shall apply the permissible limit values of such characteristic pollution parameters according to the national environmental protection standard of one of the countries in the Group of Seven (G7).
4.3. Regulations on certain special cases:
4.3.1. For cooling water, only temperature; Chloroform, Chlorine (in case of using Chlorine or Chlorine-based disinfectants) are required to be monitored. Permissible limit values of temperature, Chloroform and Chlorine in cooling water are specified in Table 2 of this Regulation.
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4.3.3. In case the values of pollution parameters used for assessing quality of input water serving aquaculture exceed the values specified in Table 1 and Table 2 of this Regulation, the values of pollution parameters in effluent discharged into water receiving bodies must not exceed values of the input to the work for exploitation of water serving aquaculture. The sampling for the assessment of quality of input water and effluent discharged into water receiving bodies shall be carried out at the same time.
4.4. The discharge of effluent into a water receiving body will be assessed for compliance and conformance with this Regulation if the pollution parameter monitoring and analysis results do not exceed the permissible limit values specified in Table 1 and Table 2 of this Regulation; do not exceed the permissible limit values specified under the national environmental protection standard of one of the countries in the Group of Seven (G7) except the case specified in 2.2.2.2 of this Regulation in case there are new characteristic pollution parameters specified in 4.1.5 of this Regulation.
4.5. The method for assessing the compliance and conformance with this Regulation shall involve monitoring and analyzing samples of effluent before being discharged into water receiving bodies.
4.6. The monitoring and analysis of pollution parameters specified in Table 1 and Table 2 of this Regulation for the purpose of providing information and data to regulatory agencies must be carried out by an organization granted a Certificate of eligibility to provide environmental monitoring services in accordance with the law. The monitoring and analysis of new characteristic pollution parameters specified in 4.1.5 of this Regulation for the purpose of providing information and data to regulatory agencies must be carried out by an organization granted a Certificate of eligibility to provide testing services in accordance with regulations of the Government’s Decree No. 107/2016/ND-CP dated July 01, 2016 prescribing conditions for provision of conformity assessment services. The use of automatic and continuous effluent monitoring results shall be subject to regulations of law.
4.7. The results of assessment of compliance and conformance with this Regulation shall serve as the basis for regulatory bodies to consider taking actions as prescribed by law.
4.8. Domestic wastewater and livestock effluent shall, when mixed together with industrial effluent, managed in the same manner as industrial effluent prescribed in this Regulation.
4.9. If domestic wastewater is collected and treated separately from industrial effluent, it shall be managed according to the provisions of the National technical regulation on domestic and municipal wastewater.
4.10. When connecting effluent generated from production, business and service activities in urban areas and high density residential areas to the system for collection and treatment of domestic and municipal wastewater, the regulations laid down by the investor, manager or operator of such system or by the local government must be satisfied.
4.11. When connecting effluent of production, business and service establishments in a concentrated production, business and service area or industrial cluster to the centralized effluent collection and treatment system, the regulations laid down by the investor in construction and commercial operation of infrastructure of the concentrated production, business and service area or industrial cluster must be satisfied.
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5. RESPONSIBILITIES OF ORGANIZATIONS AND INDIVIDUALS
5.1. The owner of the investment project or establishment discharging industrial effluent shall ensure that values of pollution parameters do not exceed the permissible limit values specified in Table 1 and Table 2 of this Regulation.
5.2. Each investment owner or establishment owner shall determine pollution parameters according to the principles set out under 4.1 of this Regulation by relying on the following bases: information on the types of production, business and services; raw materials, materials, fuels, chemicals used; production technology, effluent treatment technology and the list of potential pollution parameters (proposed in the application for appraisal of environmental impact assessment report, application for issuance, adjustment or re-issuance of environmental license).
5.3. The authority competent to appraise the environmental impact assessment report or issue the environmental license shall determine specific pollution parameters to be controlled on the basis of the proposal of the investment project owner or establishment owner in the application for appraisal of environmental impact assessment report or application for issuance, adjustment or re-issuance of environmental license. In case it is detected that other pollution parameters exceed the permissible limit values specified in Table 2 of this Regulation, additional control is required as prescribed.
6.1. Each provincial People’s Committee shall review and adjust its promulgated local environmental technical regulation on industrial effluent in line with law, situation of local socio-economic development and this Regulation.
6.2. Environmental protection authorities shall provide guidance on and inspect the implementation of this Regulation.
6.3. In the cases where any of the documents and regulations referred to in this Regulation is amended or replaced, the newest one shall apply./.
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No.
Sampling, pollution parameters
Test method and standard code
(1)
(2)
(3)
1
Sampling effluent, storage and transport of effluent samples
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TCVN 5999:1995
TCVN 6663-3:2016
2
Effluent sampling for microbiological analysis
TCVN 8880:2011
3
Biochemical oxygen demand (BOD5 at 20oC)
TCVN 6001-1:2008
TCVN 6001-2:2008
...
...
...
4
Chemical oxygen demand (COD)
TCVN 6491:1999
SMEWW 5220B:2023
SMEWW 5220C:2023
SMEWW 5220D:2023
5
Total Organic Carbon (TOC)
TCVN 6634:2000
...
...
...
SMEWW 5310C:2023
SMEWW 5310D:2023
6
Total Suspended Solids (TSS)
TCVN 6625:2000
SMEWW 2540D:2023
7
pH
TCVN 6492:2011
...
...
...
8
Temperature
TCVN 4557:1988
TCVN 13088:2020
SMEWW 2550B:2023
9
Total Nitrogen (T-N)
TCVN 6638:2000
TCVN 6624:1-2000
...
...
...
10
Total Phosphorus (T-P)
TCVN 6202:2008
SMEWW 4500-P.B&D:2023
SMEWW 4500-P.B&E:2023
ISO 11885:2007
11
Total Coliforms
SMEWW 9221B:2023
...
...
...
TCVN 6187-1:2019
TCVN 8775:2011
12
Color
TCVN 6185:2015 (C)
SMEWW 2120C:2023
13
Arsenic (As)
TCVN 6626:2000
...
...
...
SMEWW 3113B:2023
SMEWW 3114B:2023
SMEWW 3125B:2023
US EPA Method 200.8
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
14
Mercury (Hg)
...
...
...
TCVN 7724:2007
SMEWW 3112B:2023
US EPA Method 245.1
US EPA Method 7470A
US EPA Method 200.8
TCVN 12960:2020
15
Lead (Pb)
TCVN 6665:2011
...
...
...
ISO 15586: 2003
SMEWW 3113B:2023
SMEWW 3125B:2023
US EPA Method 200.8
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
16
Cadmium (Cd)
...
...
...
TCVN 6665:2011
TCVN 6193:1996
SMEWW 3111B:2023
SMEWW 3113B:2023
SMEWW 3125B:2023
US EPA Method 200.8
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
...
...
...
Chromium VI (Cr6+)
TCVN 6658:2000
SMEWW 3500-Cr.B:2023
US EPA Method 7198
18
Total Chromium (Cr)
TCVN 6665:2011
TCVN 6222:2008
ISO 15586:2003
...
...
...
SMEWW 3113B:2023
SMEWW 3120B:2023
SMEWW 3125B:2023
US EPA Method 200.7
US EPA Method 200.8
US EPA Method 218.1
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
...
...
...
Copper (Cu)
TCVN 6665:2011
TCVN 6193:1996
ISO 15586:2003
SMEWW 3111B:2023
SMEWW 3113B:2023
SMEWW 3120B:2023
SMEWW 3125B:2023
US EPA Method 200.7
...
...
...
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
20
Zinc (Zn)
TCVN 6665:2011
TCVN 6193:1996
ISO 15586:2003
SMEWW 3111B:2023
...
...
...
SMEWW 3120B:2023
SMEWW 3125B:2023
US EPA Method 200.7
US EPA Method 200.8
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
21
Nickel (Ni)
...
...
...
TCVN 6193:1996
ISO 15586:2003
SMEWW 3111B:2023
SMEWW 3113B:2023
SMEWW 3120B:2023
SMEWW 3125B:2023
US EPA Method 200.7
US EPA Method 200.8
TCVN 13090:2020
...
...
...
TCVN 13092:2020
22
Manganese (Mn)
TCVN 6665:2011
ISO 15586:2003
SMEWW 3111B:2023
SMEWW 3113B:2023
SMEWW 3120B:2023
SMEWW 3125B:2023
...
...
...
US EPA Method 200.8
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
23
Iron (Fe)
TCVN 6665:2011
TCVN 6177:1996
ISO 15586:2003
...
...
...
SMEWW 3111B:2023
SMEWW 3113B:2023
SMEWW 3120:2023
US EPA Method 200.7
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
TCVN 13090:2020
TCVN 13091:2020
...
...
...
24
Barium (Ba)
US EPA Method 200.7
US EPA Method 200.8
TCVN 6665:2000
SMEWW 3120B:2023
25
Antimony (Sb)
SMEWW 3111.B:2023
...
...
...
SMEWW 3120.B:2023
SMEWW 3125.B:2023
US EPA Method 200.7
US EPA Method 200.8
US EPA Method 243.1
TCVN 13090:2020
TCVN 13091:2020
TCVN 13092:2020
26
...
...
...
TCVN 6665:2011
ISO 15586:2003
SMEWW 3111 B:2023
SMEWW 3113B:2023
SMEWW 3120B:2023
SMEWW 3125B:2023
US EPA Method 200.7
US EPA Method 200.8
TCVN 13090:2020
...
...
...
TCVN 13092:2020
27
Selenium (Se)
US EPA Method 200.7
US EPA Method 200.8
SMEWW 3114C:2023
28
Cyanide (CN)
TCVN 6181:1996
...
...
...
TCVN 7723-2:2015
TCVN 7723:2007
ISO 14403-2:2017
29
Ammonium (N-NH4+), expressed as N
TCVN 5988-1995
TCVN 9242:2012
TCVN 6179-1:1996
TCVN 6660:2000
...
...
...
SMEWW 4500-NH3.B&F:2023
SMEWW 4500-NH3.B&H:2023
USEPA Method 350.2
30
Phenol (C6H5OH)
SMEWW 6420B:2023
SMEWW 64200:2023 US
EPA Method 8270E US
EPA Method 604
...
...
...
Total Phenols
TCVN 6216:1996
TCVN 7874:2008
US EPA Method 420.2
ISO 14402:1999
SMEWW 5530.B&C:2023
32
Mineral oils and fats
SMEWW 5520B&F:2023
...
...
...
SMEWW 5520D&F:2023
US EPA Method 1664
TCVN 9718:2013
33
Animal and vegetable oils and fats
SMEWW 5520B&F:2023
SMEWW 5520D&F:2023
US EPA Method 1664
34
...
...
...
TCVN 6637:2000
TCVN 6659:2000
SMEWW 4500 S2-.B&D:2023
35
Fluoride (F-)
TCVN 6494-1:2011
TCVN 6490:1999
SMEWW 4500-F-.B&C:2023
SMEWW 4500-F-.B&D:2023
...
...
...
SMEWW 4110C:2023
US EPA Method 300.1
36
Chloride (Cl-) (not applied upon discharge of effluent into saltwater or brackish water)
TCVN 6494-1:2011
TCVN 6194:1996
SMEWW 4110B:2023
SMEWW 4110C:2023
SMEWW 4500.Cl-:2023
...
...
...
37
Chlorine residual (Cl2)
TCVN 6225-1:2017
TCVN 6225-2:2017
SMEWW 4500-Cl:2023
38
Total organochlorine pesticides
TCVN 9241:2017
TCVN 7876:2008
...
...
...
US EPA Method 8081B
US EPA Method 8270E
US EPA Method 1699
ISO 6848:1996
39
Total organophosphorus pesticides
US EPA Method 8141B
US EPA Method 8270E
US EPA Method 1699
...
...
...
PCB (Polychlorinated biphenyls), expressed as constituents: PCB 28, PCB 52, PCB 101, PCB 138, PCB 153, PCB 180
TCVN 9241:2017
TCVN 8061:2009
SMEWW 6630C:2023
US EPA Method 1668C
US EPA Method 8082A
US EPA Method 8270E
ISO 6848:1996
41
...
...
...
US EPA Method 1613B
US EPA Method 8290A
42
Absorbable organic halogens (AOX)
TCVN 6493:2008
EPA Method 1650
43
Anionic surfactants
TCVN 6622-1:2009
...
...
...
SMEWW 5540 B&C:2023
ISO 16265:2009
44
Pentachlorophenol (C6Cl5OH)
US EPA Method 1653A
US EPA Method 1625
US EPA Method 604
US EPA Method 8270E
SMEWW 6420B:2023
...
...
...
45
Trichloroethylene (CH-CCl3)
US EPA Method 624
US EPA Method 5021A
US EPA Method 8260D
US EPA Method 624.1
46
Tetrachloroethylene (C2Cl4)
US EPA Method 624
...
...
...
US EPA Method 5032
US EPA Method 8260D
US EPA Method 624.1
47
Benzene (C6H6)
US EPA Method 624
US EPA Method 5021A
US EPA Method 5032
US EPA Method 8260D
...
...
...
TCVN 12963:2020
TCVN 7873:2008
48
Methylene chloride (Dichloromethane - CH2Cl2)
US EPA Method 432
US EPA Method 5021A
US EPA Method 8260D
US EPA Method 624.1
TCVN 12963:2020
...
...
...
Carbon tetrachloride (CCl4)
US EPA Method 551.1
US EPA Method 5021A
US EPA 8260D
US EPA Method 624.1
50
1,1-dichloroethylene (CH2CCl2)
US EPA Method 5021A
US EPA Method 624
...
...
...
US EPA Method 624.1
51
1,2-dichloroethane (C2H4Cl2)
US EPA Method 5021A
US EPA Method 624
US EPA Method 8260D
US EPA Method 624.1
52
Chloroform (CHCl3)
...
...
...
US EPA Method 551.1
US EPA Method 502.2
US EPA Method 8260D
US EPA Method 624.1
53
1,4-Dioxane (C4H8O2)
US EPA Method 522
US EPA Method 8270E
US EPA Method 8260D
...
...
...
54
Diethylhexylphthalate (DEHP) (C6H4(CO2C8H17)2)
US EPA Method 506
US EPA Method 625.1
US EPA Method 8270E
SMEWW 6410B:2023
SMEWW 6440C:2023
ES 04501.1b
55
...
...
...
US EPA Method 5021A
US EPA Method 624
US EPA Method 8260D
US EPA Method 624.1
ES 04602.1b
56
Acrylonitrile (CH2CHCN)
US EPA Method 8316
US EPA Method 8031
...
...
...
US EPA Method 624.1
ES 04602.1b
57
Bromoform (CHBr3)
US EPA Method 5021A
US EPA Method 8260D
US EPA Method 624.1
ES 04602.1b
58
...
...
...
US EPA Method 610
US EPA Method 625
US EPA Method 5021A
US EPA Method 8100
US EPA Method 8260D
US EPA Method 624.1
TCVN 12963:2020
59
Formaldehyde (HCHO)
...
...
...
ASTM D6303-98
ES 04605.0
ES 04605.1a
ES 04605.2
ES 04605.3
60
Epichlorohydrin (C3H5ClO)
US EPA Method 8260D
US EPA Method 624.1
...
...
...
61
Toluene (C6H5-CH3)
US EPA Method 5021A
US EPA Method 8260D
US EPA Method 624.1
62
Xylene (C6H4(CH3)2)
US EPA Method 5021A
US EPA Method 5032
...
...
...
US EPA Method 624.1
63
Perchlorate (ClO4⁻)
US EPA Method 6850
TCVN 12962:2020
ES 04364.0
ES 04364.1c
ES 04364.2b
64
...
...
...
US EPA Method 8316
US EPA Method 8032A
ES 04609.0
ES 04609.1
ES 04609.2
65
Styrene (C6H5CH=CH2)
US EPA Method 5021A
US EPA Method 8260D
...
...
...
US EPA Method 5032
66
Bis (2-ethylhexyl) adipate ((CH2CH2CO2C8H17)2)
US EPA Method 625
US EPA Method 625.1
US EPA Method 8270E
SMEWW 6410B:2023
SMEWW 6440C:2023
ES 04505.1
...
...
...
Sulfite (expressed as SO32-)
TCVN 6494-3:2000
SMEWW 4500-SO32–C:2023
Notes:
- TCVN: National Standard of Vietnam.
- US EPA Method: Method of the United States Environmental Protection Agency.
- SMEWW: Standard Methods for the Examination of Water and Wastewater.
- ASTM: Standards of the American Society for Testing and Materials.
- ISO: International Organization for Standardization.
...
...
...
Characteristic pollution parameters specific to types of production, business and services
No.
Type of production, business, service
Industrial classification code
Characteristic pollution parameter
Several potential pollution parameters
(1)
...
...
...
(3)
(4)
(5)
I
Agriculture and fisheries
A
1.
...
...
...
A 032
Determined under 4.3.2 of this Regulation
-
II
Mining and quarrying
B
2.
...
...
...
B 05
Color.
Depending on raw materials, fuels and chemicals actually used.
3.
Extraction of crude petroleum and natural gas (except extraction from oil and gas reservoirs)
B 06
Mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
...
...
...
Mining of metal ores
B 07
Color, mineral oils and fats.
Depending on ores actually mined, and raw materials, fuels and chemicals actually used.
5.
Other mining and quarrying
B 08
Color.
Depending minerals, raw materials, fuels and chemicals actually used.
...
...
...
Manufacturing
C
6.
Manufacture of food products, including processing and preserving of meat and meat products; processing and preserving of fisheries and fishery products; processing and preserving of fruit and vegetables; manufacture of vegetable and animal oils and fats; manufacture of dairy products; milling and manufacture of flour; manufacture of other food products; manufacture of feeds for cattle, poultry and aquatic animals
C 10
Ammonium, Total Nitrogen, Total Phosphorus
- Cassava starch production and processing: Cyanide.
...
...
...
- Depending on raw materials, fuels and chemicals actually used.
7.
Manufacture of beverages
C 11
Ammonium, animal and vegetable oils and fats
Depending on raw materials, fuels and chemicals actually used.
8.
Manufacture of tobacco products
C 12
...
...
...
Depending on raw materials, fuels and chemicals actually used.
9.
Spinning, weaving and finishing of textiles
C 13
Total Nitrogen, Total Phosphorus, Ammonium.
- Going through the stage of dyeing or bleaching: Color, anionic surfactants, total phenols, phenol, cyanide, sulfide, Cr6+, total Cr.
- Depending on raw materials, fuels and chemicals actually used.
10.
Manufacture of wearing apparel
...
...
...
- Going through the stage of dyeing or bleaching: Color, total phenols, phenol, cyanide, sulfide, Cr6+, total Cr.
- Depending on raw materials, fuels and chemicals actually used.
11.
Manufacture of leather and related products
C 15
Total Nitrogen, Total Phosphorus, ammonium, anionic surfactants, color, animal and vegetable oils and fats, anionic surfactants.
- Going through the stage of tanning: Cr6+, total chrome.
- Depending on raw materials, fuels and chemicals actually used.
12.
...
...
...
C 16
Color, mineral oils and fats.
- Using wood preservatives: Pentachlorophenol, Fluoride.
- Depending on raw materials, fuels and chemicals actually used.
13.
Manufacture of paper and paper products
C 17
Total Nitrogen, Total Phosphorus, ammonium, color, mineral oils and fats, sulfide.
- Using chlorine chemicals in the stage of pulp production or bleaching: AOX, Dioxin, Chloroform, Residual chlorine.
...
...
...
14.
Manufacture of coke
C 1910
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats, cyanide, sulfide, Cd, As, Hg, total phenols, phenol, benzene, toluene, xylene, naphthalene.
Depending on raw materials, fuels and chemicals actually used.
15.
Manufacture of refined petroleum product
C 1920
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats, cyanide, sulfide, total phenols, phenol, benzene.
...
...
...
- Depending on raw materials, fuels and chemicals actually used.
16.
Manufacture of industrial gas
C 20111
Depending on raw materials, fuels and chemicals actually used.
17.
Manufacture of dyes and pigments
C 20112
...
...
...
Depending on raw materials, fuels and chemicals actually used.
18.
Manufacture of basic inorganic chemicals
C 20113
Color, ammonium.
Depending on raw materials, fuels and chemicals actually used.
19.
Manufacture of basic organic chemicals
C 20114
...
...
...
Depending on raw materials, fuels and chemicals actually used.
20.
Manufacture of other basic chemicals
C 20119
Color, ammonium.
Depending on raw materials, fuels and chemicals actually used.
21.
Manufacture of fertilizers and nitrogen compounds
C 2012
...
...
...
Depending on raw materials, fuels and chemicals actually used.
22.
Manufacture of plastics and synthetic rubber in primary forms
C 2013
Ammonium, mineral oils and fats.
- Using, producing Vinyl chloride: Diethylhexylphthalate.
- Depending on raw materials, fuels and chemicals actually used.
23.
Manufacture of pesticides and other agrochemical products
...
...
...
Ammonium.
- Manufacture of pesticides (depending on type): Total organochlorine pesticides, total organophosphorus pesticides.
- Depending on raw materials, fuels and chemicals actually used.
24.
Manufacture of paints, varnishes and similar coatings, printing ink and mastics
C 2022
Depending on raw materials, fuels and chemicals actually used.
25.
...
...
...
C 2023
Total Nitrogen, Total Phosphorus, ammonium, formaldehyde, 1,4- Dioxane, anionic surfactants, mineral oils and fats, vegetable oils and fats.
Depending on raw materials, fuels and chemicals actually used.
26.
Manufacture of other chemical products not elsewhere classified
C 2029
Total Nitrogen, Total Phosphorus, Ammonium.
Depending on raw materials, fuels and chemicals actually used.
27.
...
...
...
C 203
Total Nitrogen, Total Phosphorus, Ammonium.
Depending on raw materials, fuels and chemicals actually used.
28.
Manufacture of pharmaceuticals, medicinal chemical and botanical products
C 21
Total Nitrogen, Total Phosphorus, Ammonium.
Depending on raw materials, fuels and chemicals actually used.
29.
...
...
...
C 221
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats, color.
Depending on raw materials, fuels and chemicals actually used.
30.
Manufacture of plastics products
C 222
Ammonium, mineral oils and fats.
- Using, producing Vinyl chloride: Diethylhexylphthalate.
- Depending on raw materials, fuels and chemicals actually used.
...
...
...
Manufacture of glass and glass products
C 231
Color, fluoride, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
32.
Manufacture of non-metallic mineral products (not elsewhere classified)
C 239
Color, ammonium, mineral oils and fats.
- Co-processing of waste in clinker and cement kilns generating effluent in the gas treatment stage: Dioxin/Furan, sulfite.
...
...
...
33.
Manufacture of iron, steel and cast iron
C 241
Color, Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats, As, Hg, Pb, Cd, total Cr, Mn, Fe.
- Effluent generated from the emission treatment system (sintering machines, electric arc furnaces, induction furnaces): Dioxin/Furan, sulfite.
- Depending on raw materials, fuels and chemicals actually used.
34.
Manufacture of precious and non-ferrous metals
C 242
...
...
...
- Effluent generated from the stage of emission treatment (Aluminum, Copper, Zinc furnace): Dioxin/Furan, sulfite.
- Depending on raw materials, fuels and chemicals actually used.
35.
Casting of metals
C 243
Color, ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
36.
Manufacture of fabricated metal products, except machinery and equipment
...
...
...
Ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
37.
Manufacture of computer, electronic and optical products
C 26
Ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
38.
Manufacture of electrical equipment (except manufacture of batteries and accumulators)
...
...
...
Ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
39.
Manufacture of batteries and accumulators
C 272
Lead, ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
40.
Manufacture of general-purpose and special-purpose machinery and equipment (not elsewhere classified)
...
...
...
Ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
41.
Manufacture of motor vehicles and other motor vehicles
C 29
C 30
Ammonium, mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
IV
...
...
...
D
42.
Coal-fired power
D 35112
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats, phenol, total phenols, anionic surfactants, fluoride.
- Generating effluent in the SO2 treatment stage: Sulfite.
- Depending on raw materials, fuels and chemicals actually used.
...
...
...
Nuclear power
D 35114
Depending on raw materials, fuels and chemicals actually used.
44.
Manufacture and distribution of steam, hot water, air conditioning and ice
D 353
Depending on raw materials, fuels and chemicals actually used.
...
...
...
Water supply; waste and wastewater management and treatment activities
E
45.
Water exploitation, treatment supply
E 36
Mn, Fe, As.
Depending on raw materials, fuels and chemicals actually used.
...
...
...
E 37002
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats.
- In case a centralized effluent treatment system receives effluent generated from the type of production, business or service registered for investment in the concentrated production, business and service area or industrial cluster: Depending on the type of production, business or service specified in Column 4 and Column 5 of this Appendix.
- Depending on raw materials, fuels and chemicals actually used.
47.
Treatment and disposal of waste (waste treatment)
E 38
Total Nitrogen, Total Phosphorus, ammonium, mineral oils and fats.
- Effluent generated from landfills: Color, animal and vegetable oils and fats, total phenols, phenol, cyanide, sulfide As, Hg, Pb, Cd, Cr6+, total Cr, Cu, Zn, Fe, Mn, fluorine, coliform, PCB (Polychlorinated biphenyls), total organochlorine pesticides, total organophosphorus pesticides.
...
...
...
- Depending on raw materials, fuels and chemicals actually used.
VI
Repair of motor vehicles, motorcycles, mopeds and other motor vehicles
G
48.
Maintenance and repair of motor vehicles, motorcycles, mopeds; Wholesale of petroleum, oil and related products; Retail sale of automotive fuel in specialized stores
G 4520
...
...
...
G 46613
G 47300
Mineral oils and fats.
Depending on raw materials, fuels and chemicals actually used.
VII
Professional, scientific and technical activities
M
...
...
...
Technical testing and analysis (research institutions, laboratories)
M 712
Ammonium.
Depending on raw materials, fuels and chemicals actually used.
50.
Veterinary activities.
M 75
Ammonium, animal and vegetable oils and fats.
Depending on raw materials, fuels and chemicals actually used.
...
...
...
Human health and social work activities
Q
51.
Hospitals, health stations
Q 861
Total Nitrogen, Total Phosphorus, ammonium, anionic surfactants, animal and vegetable oils and fats.
- Effluent generated from the stage of emission treatment by the waste incinerator: Dioxin/Furan, sulfite.
...
...
...
52.
Polyclinics, specialty clinics, dental clinics
Q 862
Anionic surfactants.
Depending on raw materials, fuels and chemicals actually used.
IX
Arts, entertainment and recreation
R
...
...
...
53.
Golf courses.
R 93110
Total Nitrogen, Total Phosphorous, ammonium, total organochlorine pesticides, total organophosphorus pesticides
Depending on raw materials, fuels and chemicals actually used.
X
Other industries not specified in Decision No. 27/2018/QD-TTg
...
...
...
54.
Other types (not listed in serial numbers 1 to 53 and other activities)
-
Depending on raw materials, fuels and chemicals actually used.
Notes:
- Types of production, business and services are classified based on the industrial classification specified in the Prime Minister’s Decision No. 27/2018/QD-TTg dated July 06, 2018 promulgating Vietnam Standard Industrial Classification.
- The types of production, business and services assigned the industrial classification codes at lower levels than the industrial classification codes specified in Column (3) in this Appendix may apply the same characteristic pollution parameters as those applicable to the types of production, business and services assigned the industrial classification codes specified in Column (3) in this Appendix.
- Other types listed in serial number 54 are types of production, business and services not assigned the industrial classification codes specified in Column (3) in this Appendix and other activities, except the types of business and services already specified in the National technical regulation on domestic and municipal wastewater./.
...
...
...
National Technical Regulation QCVN 40:2025/BTNMT for Industrial effluent
| Số hiệu: | QCVN40:2025/BTNMT |
|---|---|
| Loại văn bản: | Quy chuẩn |
| Nơi ban hành: | Bộ Tài nguyên và Môi trường |
| Người ký: | *** |
| Ngày ban hành: | 28/02/2025 |
| Ngày hiệu lực: | Đã biết |
| Tình trạng: | Đã biết |
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National Technical Regulation QCVN 40:2025/BTNMT for Industrial effluent
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