A sewage treatment method combining activated sludge method and biological contact oxidation method
A sewage treatment method and technology of activated sludge method, which are applied in water/sludge/sewage treatment, water/sewage multi-stage treatment, chemical instruments and methods, etc. Problems such as limited number of microorganisms, to achieve the effect of high microbial biomass
Inactive Publication Date: 2015-10-28
湖北殊威环保工程有限公司 +1
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The activated sludge method and the biological contact oxidation method have their own advantages and disadvantages: the removal rate of BOD and suspended solids in the activated sludge method is very high, reaching about 90-95%. The disadvantage is that the sludge concentration in the biochemical tank is also the biomass Limited, poor adaptability to water quality changes, relatively large aeration tank, large area, high energy consumption
The biological contact oxidation method has the characteristics of simple operation and maintenance management, less land occupation, and low operating cost. However, the number of microorganisms on the filler of the biological contact oxidation method is limited, and the biofilm has a relatively high demand for dissolved oxygen concentration, which cannot make full use of the supplied oxygen. , the removal rate of ammonia nitrogen and total nitrogen is not high
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0029] Such as figure 1 As shown, the present embodiment provides a sewage treatment method combining activated sludge method and biological contact oxidation method, comprising the following steps:
[0030] (1) Sewage enters the grid to remove large-scale floating matter, suspended matter and small solid matter, such as branches, leaves, discarded clothes, waste plastic bags and solid organic matter, etc.
[0031] (2) Lift the sewage to the subsequent treatment structure through the lifting pump;
[0032] (3) Remove dense inorganic particles, such as sand, through the grit chamber;
[0033] (4) Enter the anoxic pool, use the metabolism of anoxic microorganisms mainly including benzene rings, heterocyclics and other degrading bacteria to degrade COD and SS pollutants in the incoming water. After mixing, carry out denitrification and denitrification r...
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
Login to View More Abstract
The invention relates to a sewage treating process, and particularly provides a sewage treating method combining an activated sludge process with a bio-contact oxidation process; the biochemical precipitation process of the method is realized in a pond with a reinforced concrete structure, and the pond is separated into a front part, a middle part and a rear part, wherein the front part is an ordinary anoxic pond, the middle part is an aerobic pond, the rear part is a round radial-flow settling pond, and sewage flows in from the middle part of the settling pond and flows out from the periphery of the settling pond. According to the method, the activated sludge process is combined with the bio-contact oxidation process, so that microbial biomass of a biochemical system can be greatly increased, the degradation efficiencies of the unit pond capacity of a biochemical pond to various pollutants are improved, the effluent is stable and meets the limiting value requirements in national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002), and operating and investment costs are both low.
Description
technical field [0001] The invention relates to a sewage treatment process, in particular to a sewage treatment method combining activated sludge method and biological contact oxidation method. Background technique [0002] At present, there are two main methods of sewage biological treatment: activated sludge method and contact oxidation method. [0003] The activated sludge method and the biological contact oxidation method have their own advantages and disadvantages: the removal rate of BOD and suspended solids in the activated sludge method is very high, reaching about 90-95%. The disadvantage is that the sludge concentration in the biochemical tank is also the biomass Limited, poor adaptability to water quality changes, relatively large aeration tanks, large land occupation, and high energy costs. The biological contact oxidation method has the characteristics of simple operation and maintenance management, less land occupation, and low operating cost. However, the num...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 何海量王吉松戴捷
Owner 湖北殊威环保工程有限公司