GB/T 37528-2019General technical specification for biological filter for nitrogen removal (English PDF)
脱氮生物滤池通用技术规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
January 1, 2020
Scope
GB/T 37528-2019 is the English-translated version of 脱氮生物滤池通用技术规范.
GB/T 37528-2019 is the Chinese standard "General technical specification for biological filter for nitrogen removal".
Its scope clause reads: This standard specifies the terms and definitions of the denitrification biofilter system, the composition of the denitrification biofilter system and the process, requirements, testing, and Dynamic control and safety.
This standard applies to the treatment of domestic sewage, industrial wastewater, surface water and groundwater, mainly for the removal of total nitrogen (hereinafter referred to as TN). Biofilter system. Its clauses include terms and definitions.
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Document preview — GB/T 37528-2019
National Standard of the People's Republic of China
- ICS
- 13.020
- Classification
- J 88
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Nitrogen removal biofilter system composition and process flow
- 5 Requirements
- 6 detection
- 7 Automatic Control and Safety
- Appendix A (informative appendix) Schematic diagram of denitrification biofilter
1 Scope
This standard specifies the terms and definitions of the denitrification biofilter system, the composition of the denitrification biofilter system and the process, requirements, testing, and
Dynamic control and safety.
This standard applies to the treatment of domestic sewage, industrial wastewater, surface water and groundwater, mainly for the removal of total nitrogen (hereinafter referred to as TN).
Biofilter system.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 3797-2016 Electrical Control Equipment
GB/T 7488-1987 Water quality 5-day biochemical oxygen demand (BOD5) determination Dilution and inoculation method
GB/T 11894-1989 Determination of total nitrogen in water - Alkaline potassium persulfate digestion - UV spectrophotometric method
GB/T 11901-1989 Determination of suspended solids by weight method
GB/T 11913-1989 Determination of dissolved oxygen in water - Electrochemical probe method
GB/T 15441-1995 Determination of acute toxicity of water quality
GB 18918-2002 Pollutant discharge standard for urban sewage treatment plants
GB 19761-2009 ventilator energy efficiency limit value and energy efficiency rating
GB 50014-2006 Outdoor Drainage Design Code
CJJ60-2011 Technical Regulations for Operation, Maintenance and Safety of Municipal Wastewater Treatment Plants
JB/T 8690-2014 Fan noise limit
HJ535-2009 Determination of Ammonia Nitrogen in Water Quality - Nessler Reagent Spectrophotometry
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Total nitrogen total nitrogen; TN
The sum of organic nitrogen, ammonia nitrogen, nitrite nitrogen and nitrate nitrogen.
[GB 50014-2006, definition 2.1.61]
3.2 Denitrification biofilter biologicalfilterfornitrogenremoval
A sewage biological treatment structure for the purpose of removing TN, the structure is filled with a filter material as a carrier, and the microorganism is attached to the surface of the filter material.
As a biofilm, the sewage passes through the filter layer, relies on the adsorption and decomposition of pollutants by the biofilm on the surface of the filter material, and the physical interception filtration of the filter material.
Use to make the sewage clean.
Note. Nitrogen removal biofilter can be divided into denitrification biofilter and nitrification biofilter according to function. It can be divided into upflow biofilter and downflow organism according to flow direction.
Filter tank.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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