QCVN 24: 2009BTNMT National Technical Regulation on Industrial Wastewater

QCVN 24: 2009BTNMT National Technical Regulation on Industrial Wastewater QCVN 24: 2009BTNMT Quy chuẩn kỹ thuật quốc gia về nước thải công nghiệp QCVN 24: 2009BTNMT was complied by Drafting Committee of national technical regulations on water quality, submitted by Vietnam Environment Administration and Department of Legislation and promulgated in line with Circular No. 252009TTBTNMT dated November 16, 2009 issued by Ministry of Natural Resource and Environment

SOCIALIST REPUBLIC OF VIETNAM QCVN 24: 2009/BTNMT National Technical Regulation on Industrial Waste water HÀ NỘI - 2009 QCVN 24: 2009/BTNMT Foreword QCVN 24: 2009/BTNMT was complied by Drafting Committee of national technical regulations on water quality, submitted by Vietnam Environment Administration and Department of Legislation and promulgated in line with Circular No 25/2009/TTBTNMT dated November 16, 2009 issued by Ministry of Natural Resource and Environment QCVN 24: 2009/BTNMT National Technical Regulation on Industrial Wastewater GENERAL PROVISIONS 1.1 Scope of regulation This regulation provides for maximum allowable values of pollution parameters in industrial wastewater discharged into receiving facilities 1.2 Subjects of application 1.2.1 This regulation applies to individuals and organizations carrying out activities related to the discharge of industrial wastewater in to receiving facilities 1.2.2 Wastewater of some industries and field of particular activities shall be regulated separately 1.3 Interpretation of terms In this regulation, the terms below are construed as follows 1.3.1 Industrial wastewater means solution discharged from industrial manufacturing, processing, trading and servicing premises into wastewaterreceiving facilities 1.3.2 Kq means discharge coefficient/volumetric capacity of the receiving facilities corresponding to flow discharge of river, stream, spring, canal, channel, streamlet, rillet and volumetric capacity of reservoir, lake, pond and swamp 1.3.3 Kf discharge coefficient of wastewater-discharging sources of industrial manufacturing, processing, trading and servicing premises into wastewater-receiving facilities 1.3.4 wastewater-receiving facilities means surface water bodies or coastal water areas used with particular and specific purpose where industrial wastewater is discharged into TECHNICAL REGULATION 2.1 The allowable maximum value of pollution parameters in industrial wastewater is calculated as follows: QCVN 24: 2009/BTNMT Cmax = C x Kq x Kf where: - Cmax is allowable maximum value of the pollution parameter in industrial wastewater discharged into receiving facilities, measured in milligram per liter (mg/l); - C is value of pollution parameter in industrial wastewater stipulated at section 2.3 - Kq is discharge coefficient/volumetric capacity of the receiving facilities stipulated at section 2.4 - Kf is discharge coefficient of wastewater source stipulated at section 2.5 2.2 Cmax = C (without coefficient of Kq and Kf) is applied to parameters: temperature, pH, odour, colour, Coliform, Gross α activity and gross β activity 2.3 The C Value of pollution parameters in industrial wastewater is stipulated at the table No below: Table 1: The C Value of pollution parameters in industrial wastewater O No Parameter Unit C Value A B C 40 40 Temperature pH - 6-9 5,5-9 Odour - Không khó chịu Không khó chịu Colour (Co-Pt at pH = 7) - 20 70 BOD5 (200C) mg/l 30 50 COD mg/l 50 100 Suspended solids mg/l 50 100 Arsenic mg/l 0,05 0,1 Mercury mg/l 0,005 0,01 mg/l 0,1 0,5 10 Lead QCVN 24: 2009/BTNMT C Value O Parameter No 11 Cadimium Unit mg/l 0,005 0,01 12 Chromium (VI) mg/l 0,05 0,1 13 Chromium (III) mg/l 0,2 14 Cooper mg/l 2 15 Zinc mg/l 3 16 Nickel mg/l 0,2 0,5 17 Manganese mg/l 0,5 18 Iron mg/l 19 Tin mg/l 0,2 20 Cyanide mg/l 0,07 0,1 21 Phenol mg/l 0,1 0,5 22 Mineral Oil and fat mg/l 5 23 Animal-vegetable oil and fat mg/l 10 20 24 Chlroine residual mg/l 25 PCBs mg/l 0,003 0,01 mg/l 0,3 27 Pesticide: organic chlorine mg/l 0,1 0,1 28 Sunfide mg/l 0,2 0,5 29 Fluoride mg/l 10 30 Chloride mg/l 500 600 31 Ammonia (as N) mg/l 10 32 Total Nitrogen mg/l 15 30 33 Total Phosphorous mg/l MPN/100ml 3000 5000 35 Gross α activity Bq/l 0,1 0,1 36 Gross β activity Bq/l 1,0 1,0 26 Pesticide: phosphrous 34 Coliform organic Where: - Colume A stipulates value C of pollution parameter in industrial wastewater discharged into receiving facilities using for sources of domestic water supply QCVN 24: 2009/BTNMT - Colume B stipulats value C of pollution parameter in industrial wastewater discharged into receiving facilities not using for sources of domestic water supply - Parameter of chlorine shall not be applied to receiving facilities which are brackish and salt water 2.4 Discharge coefficient/volumetric capacity of receiving facilities Kq is stipluated as follows 2.4.1 Coefficient Kq corresponding to flow discharge of receiving facilities whichs are river, stream, spring, canal, channel, streamlet, rillet is stipulated at the table No below: Table 2: Coefficient Kq of receiving facilities whichs are river, stream, spring, canal, channel, streamlet, rillet Flow discharge of watewater-receiving facilities (Q) Calculated unit: cubic meter/second (m /s) Coefficient Kq Q ≤ 50 0,9 50 < Q ≤ 200 200 < Q ≤ 1000 1,1 Q > 1000 1,2 Q is calculated in average value of flow discharge of river, stream, spring, canal, channel, streamlet, rillet during 03 driest months of 03 successive years (data issued by meteorological-hydrological agency) If there is no data on flow discharge of river, stream, spring, canal, channel, streamlet, rillet the value Kq=0,9 shall be applied or Department of Natural Resource and Environment managing areas where wastewater-discharging sources are located shall appoint a unit with appropriate function to define average discharge during 03 driest of year for the basis of selecting coefficient Kq 2.4.2 Coefficient Kq corresponding to volumetric capacity of wastewater receiving facilities which are reservoir, lake, pond and swamp is stipulated at the table No below: Table 3: Coefficient Kq of reservoir, lake, pond, swamp Volumetric capacity of wastewater receiving facilities (V) Coefficient Kq QCVN 24: 2009/BTNMT Calculated unit: cubic meter (m3) V ≤ 10 x 106 0,6 10 x 106 < V ≤ 100 x 106 0,8 V > 100 x 106 1,0 Q is calculated in average value of volumetric capacity of eservoir, lake, pond and swamp during 03 driest months of 03 successive years (data issued by meteorological-hydrological agency) If there is no data on volumetric capacity the value Kq=0,6 shall be applied or Department of Natural Resource and Environment managing areas where wastewater-discharging sources are located shall appoint a unit with appropriate function to define average value of volumetric capacity during 03 driest of year for the basis of defining coefficient Kq 2.4.3 Regaring the receiving facilities which are coastal areas not using for the purpose of aquatic organism protection, water sport or recreation, Kq = 1,3 shall be applied Regaring the receiving facilities which are coastal areas using for the purpose of aquatic organism protection, water sport or recreation, Kq = 1,3 shall be applied 2.5 Discharge coefficient Kf of wastewater discharging sources is stipulated at the table No below Bảng 4: Discharge coefficient Kf of wastewater discharging sources Discharge of wastewater discharging sources i (F) Calculated unit: cubic meter/day (m3/24h) Coefficient Kf F ≤ 50 1,2 50 < F ≤ 500 1,1 500 < F ≤ 5.000 1,0 F > 5.000 0,9 2.6 In the case that wastewater stored in dumping pond within area of wastewater-creating premises and used for the purpose of irrigation, the water in the pond must comply with the National Standard TCVN 6773:2000 on Water quality – water quality guidelines for irrigation QCVN 24: 2009/BTNMT METHOD OF DETERMINATION 3.1 Method for definition of pollution parameters in industrial wastewater shall be carried out in accordance with national standards below: - TCVN 4557:1988 – Water quality – Method for determination of temperature; - TCVN 6492:1999 (ISO 10523:1994) Water quality - determination of pH; - TCVN 6185:2008 – Water quality – Examination and determination of colour; - TCVN 6001-1: 2008 Water quality Determination of biochemical oxygen demand after n days (BODn) Part 1: Dilution and seeding method with allylthiourea addition - TCVN 6491:1999 (ISO 6060:1989) Water quality Determination of the chemical oxigen demand (COD); - TCVN 6625:2000 (ISO 11923:1997) Water quality - Determination of suspended solids by filtration through glass-fibre filters; - TCVN 6626:2000 Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique; - TCVN 7877:2008 (ISO 5666 -1999) Water quality Determination of mecury; - TCVN 6193:1996 Water quality Determination of cobalt nickel, copper, zinc, cadmium, and lead Flame atomic absorption spectrometric methods; - TCVN 6002:1995 (ISO 6333-1986) Water quality - Determination of manganese - Formaldoxime spectrometric method; - TCVN 6222:2008 Water quality Determination of chromium Atomic absorption spectrometric methods; - TCVN 6177:1996 (ISO 6332-1988) Water quality - Determination of Iron – Spectrometric method using 1,10-phenantrolin; - TCVN 6181:1996 (ISO 6703-1-1984) Water quality - Determination of total cyanide; QCVN 24: 2009/BTNMT - TCVN 6216:1996 (ISO 6439-1990) Water quality Determination of phenol index 4-aminoantipyrine spectrometric methods after distillation; - TCVN 5070:1995 Water quality - Weight method for determination of oil and oil product; - Method for determination of total vegetable oil and fat carried oyut according to US EPA Method 1664 Extraction and gravimetry (Oil and grease and total petroleum hydrocarbons); - TCVN 6225-3:1996 Water quality Determination of free chlorine and total chlorine Part 3: Iodometric titration method for the determination of total chlorine; - TCVN 4567:1988 Water quality – Method for determination of suldide and sulfate content; - TCVN 6494:1999 Water quality Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions - Method for water with low contamination - TCVN 5988:1995 (ISO 5664-1984) Water quality - Determination of aminonium - Distillation and titration method; - TCVN 6638:2000 Water quality - Determination of nitrogen - Catalytic digestion after reduction with devarda's alloy; - TCVN 6187-1:2009 (ISO 9308-1: 2000/Cor 1: 2007) Water quality Detection and enumeration of Escherichia coli and coliform bacteria Part 1: Membrane filtration method; - TCVN 6053:1995 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method; - TCVN 6219:1995 Cater quality - Measurement of gross beta activity in non-saline water; - TCVN 6658:2000 Water quality Determination of chromium(VI) -Spectrometric method using 1,5-diphenylcarbazide 3.2 When there are still no standard for determination of pollution parameters in industrial wastewater stipulated in this regulation, international standard with accuracy being corespondent or higher shall be applied ORGANIZATION OF IMPLEMENTATION QCVN 24: 2009/BTNMT 4.1 This techinical regulation supersedes the application of Vietnamese standard TCVN 5945:2005 on Industrial wastewater – Discharge standard enclosed with Decision No 22/2006/QĐ-BTNMT of Minister of Natural Resource and Environment dated December 18, 2006 on compulsory application of Vietnamese environmental standards 4.2 State environemnt management agencies take responsibility for guiding, inspecting and supervising the implementation of this technical regulation 4.3 In the case that national standard on method of determination referred to in the section 3.1 are amended, supplemented or replaced, the new standard shall be applied 10