CJ/T 95-2000 Water Quality Standard for Recycled Water Used in Landscape Water Bodies CJ/T95-2000 CJ/T95-2000 Standard Download Decompression Password: www.bzxz.net

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CJ/T95—2000
Water Quality Standard for Reclaimed Wastewater Reused as Scenic Water
Published on January 10, 2000
Implemented on June 1, 2000
Ministry of Construction of the People's Republic of China
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Engineering Construction Standard Full Text Information System
CJ/T95—2000
The formulation of the water quality standard for reclaimed wastewater reused as scenic water is the first in China. This standard is compiled on the basis of summarizing the scientific and technological achievements of the "Seventh Five-Year Plan" National Science and Technology Research Project "Research on High-efficiency Flocculation Sedimentation Filtration Technology" and the "Eighth Five-Year Plan" National Science and Technology Research Project "Research on Urban Wastewater Reused as Scenic Water". This standard quotes and refers to relevant domestic and foreign standards.
This standard was proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the Water Supply and Drainage Product Standardization Technical Committee of the Ministry of Construction. This standard was drafted by the China Municipal Engineering North China Design Institute. The main drafters of this standard are Chen Li, Liu Xiaosong and Yang Kun. This standard is entrusted to the China Municipal Engineering North China Design Institute for interpretation. Engineering Construction Standard Full Text Information System
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Urban Construction Industry Standard of the People's Republic of China Water Quality Standard for Reclaimed Wastewater Reused as Scenic Water CJ/T95—2000
Quality standard for reclaimed wastewater reused as scenic water1Scope
This standard applies to water discharged from secondary or higher urban sewage treatment plants that enter or directly serve as scenic waters.
2Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards. GB/T5750—1985
GB/T6920—1986
GB/T 74881987
GB/T7490—1987
GB/T7494—1987
Standard test method for drinking water
Water qualityDetermination of pH valueGlass electrode method
Water qualityDetermination of five-day biochemical oxygen demand (BOD)Dilution and inoculation method
Water qualityDetermination of volatile phenols
Tipyrine spectrophotometric method
4-aminoammonia after distillation
Water qualityDetermination of anionic surfactants
Methylene
Blue spectrophotometric method
GB 8978—1996
Comprehensive sewage discharge standard
Approved by the Ministry of Construction of the People's Republic of China on January 10, 2000 Engineering construction standard full text information system
Implementation on June 1, 2000
Engineering construction standard full text information system
GB/T11891—1989
Determination of Kjeldahl nitrogen
GB/T11893—1989
GB/T 11897—1989
GB/T11898—1989
GB/T11901—1989
GB/T11903—1989bzxz.net
GB/T11906—1989
GB/T 11911—1989
GB/T11914—1989
GB/T16488—1996
3 Definition
Determination of total phosphorus: ammonium molybdate spectrophotometric method
Determination of free chlorine and total chlorine
Ethyl-1,4-phenylenediamine titration method
Determination of free chlorine and total chlorine
Ethyl-1,4-phenylenediamine spectrophotometric method||tt ||Determination of suspended matter Gravimetric method
Determination of color
Determination of manganese
Potassium permanganate spectrophotometry
Determination of iron and manganese
Flame atomic absorption spectrophotometry
Determination of chemical oxygen demand
Potassium dichromate method
Determination of petroleum and animal and vegetable oils Infrared
Photometry
This standard adopts the following definitions.
3.1 Reclaimed waste water refers to the general term for water discharged from industrial wastewater and domestic sewage after entering the urban sewage treatment plant and being treated at the second level or above.
3.2 Scenic water
It is divided into two categories, one is the recreational scenic water that is not in direct contact with the human body, and the other is the ornamental scenic water that is not in direct contact with the human body. They are either all made up of recycled water or partly made up of recycled water (the other part is made up of natural water bodies). Both types of landscape water bodies can be used as urban greening water (sprinkler irrigation is not suitable), but neither is suitable for use as waterfalls or fountains.
4 Technical requirements
The water quality of recycled water reused for landscape water bodies shall meet the requirements of Table 1. 2
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Water quality standards for reclaimed water reused in landscape water bodies Standard values
Basic requirements
Reuse type
(degrees)
Chemical oxygen demand (COD)
Five-day biochemical oxygen demand (BODs)
Suspended solids (SS)
Total phosphorus (in terms of P)
Kjeldahl nitrogen
Eliminum
Total salt content
Chloride (in terms of a)
Soluble iron
Volatile phenol
Petroleum
(pieces/L)
Anionic surfactants
①Except for pH and where units are specified.
Non-direct human contact
No floating objects, no unpleasant smell and taste
1000/2000
②Residual chlorine at the end of the pipe network.
1.0 is the value used when the water temperature exceeds 25℃ in summer. ①2000 is the value used in saline-alkali areas
5.1Sampling points and sampling requirements
Unit?: mg/L
Non-systemic human contact
No floating objects, no unpleasant smell and taste
1000/2000
Sampling points and sampling requirements refer to the sampling method of the second category of pollutants in GB8978.
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Determination method
The determination method adopted in this standard is shown in Table 2.
Table 2 Determination method
Chemical oxygen demand (COD)
Five-day biochemical oxygen demand (BODs)
Suspended solids
Total phosphorus (TP)
Kjeldahl nitrogen
Coliform bacteria
Total salt content
Chloride (in Cr)
Soluble iron
Volatile phenol
Petroleum||tt ||Anionic surfactants
Determination method
Platinum-cobalt colorimetric method
Glass electrode method
Potassium dichromate method
Dilution and inoculation method
Weight method
Ammonium molybdate spectrophotometric method
Volumetric method
Multi-tube fermentation method
Filter membrane method
N,N-diethyl-1,4-phenylenediamine
1.* Two glue
Titration
Weight method
Silver nitrate volumetric method
Mercury nitrate volumetric method
Phenanthroline colorimetric method
Atomic absorption spectrophotometry
Flame atomic absorption spectrophotometry
Potassium permanganate spectrophotometry
4-aminoantipyrine spectrophotometry after distillation
Photometry
Infrared spectrophotometry
Methylene blue spectrophotometry
Implementation standard
GB/T11903
GB/T6920
GB/T11914
GB/T7488
GB/T11901|| tt||GB/T11893
GB/T11891
GB/T5750
GB/T11898
GB/T11897
GB/T5750
GB/T5750
GB/T11911
GB/T11906
GB/T7490
GB/T16488
GB/T7494
①《Water and Wastewater Standard Test Methods》(15th Edition), Beijing: China Architecture & Building Press, 19804
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