Unlock instant, AI-driven research and patent intelligence for your innovation.

Water pollution control method suitable for river inlets of northern areas

A control method and estuary technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of few reports, achieve large amount of water treatment, good effect, The effect of stable effluent quality

Inactive Publication Date: 2013-07-24
BEIJING UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are not many reports on the application of comprehensive biofilm reactors in the treatment of estuary water pollution in China.
This technology is applied to the control of water pollution in the estuary of the urban-rural junction in the cold northern region. There is no relevant report in China.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] It is suitable for estuary water pollution control methods in the northern region. Its core is: anoxic pool, the first aerobic pool, and the second aerobic pool, which are connected in turn with a push-flow multi-stage purification method. The first aerobic tank mainly removes easily degradable COD and other substances, and the second aerobic tank plays the role of denitrification and degradation of remaining COD. The two-stage push-flow method in the aerobic stage separates the heteroaerobic bacteria that remove organic matter and the nitrifying bacteria that remove ammonia nitrogen into two aerobic pools. It not only inhibits the degradation of other substrates by microorganisms using easy-degradable substrates in the denitrification process, but also improves the denitrification performance; it also further strengthens the COD removal effect. The air path arrangement forms an anoxic-aerobic cycle: From a biological point of view, microorganisms are like human beings....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a water pollution control method suitable for river inlets of northern areas, and belongs to the technical field of sewage. The adopted system comprises an anaerobic pool, a first aerobiotic pool and a second aerobiotic pool, wherein an independent aeration tube is arranged between the first aerobiotic pool and the second aerobiotic pool every 3.5-4.5 metres; dispersed suspension-type cascade ring fillers are poured in the anaerobic pool, the first aerobiotic pool and the second aerobiotic pool respectively, and the dosing rate is 30% of the volume of the pool; and an operation process can be divided into the four phases including a biofilm formation start-up period, a design flow water-inlet period, a low-temperature maintenance period and an impact load period. According to the water pollution control method disclosed by the invention, sewage at the river inlets of the rural-urban fringe zones of northern areas is mainly treated by a comprehensive-type bio-membrane reactor treatment process, and COD (chemical oxygen demand), BOD5 (five-day biochemical oxygen demand), NH4+-N, TN (total nitrogen) and SS (suspended solid) in the sewage can be removed with a good effect.

Description

technical field [0001] The invention belongs to the technical field of sewage water pollution control in estuaries at urban-rural junctions, and relates to a simple and effective biofilm treatment process. Background technique [0002] Comprehensive biofilm reactor refers to the biofilm reactor in which the biofilm carrier is constantly moving (stirred, expanded, fluidized, turbulent or circulated, etc.) under the action of water flow or air flow, which belongs to the category of fluidized bed biofilm reactor. An efficient sewage treatment process. It not only has the characteristics of impact load resistance, long sludge age and less residual sludge of the traditional biofilm method, but also has the high efficiency and operational flexibility of the activated sludge method. Compared with the activated sludge method and other biofilm methods, the fluidized bed biofilm reactor is a combined process of activated sludge and biofilm methods, taking the advantages of the two an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 张文熊白文荣刘晶冰井琦冯惠谦
Owner BEIJING UNIV OF TECH