Integrated device and method for enhancing denitrification and dephosphorization of dispersed village and town sewage

A decentralized technology for nitrogen and phosphorus removal, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of low efficiency, inconvenient operation and maintenance, nitrogen and phosphorus removal Ineffective and other problems, to achieve the effect of increasing impact load, balancing reaction efficiency and economic cost

Active Publication Date: 2011-09-28
BEIJING DRAINAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of low efficiency, poor denitrification and phosphorus removal effect, and inconvenient operation and maintenance in the existing process when dealing with dispersed sewage, the present i...

Method used

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  • Integrated device and method for enhancing denitrification and dephosphorization of dispersed village and town sewage
  • Integrated device and method for enhancing denitrification and dephosphorization of dispersed village and town sewage
  • Integrated device and method for enhancing denitrification and dephosphorization of dispersed village and town sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] Use village and town sewage with high phosphorus concentration as the treatment object (pH=6-8, COD=300-400mg / L, NH 4 + -N=35-45 mg / L, TN=40-50 mg / L, TP=3-5 mg / L). The positions of the non-porous partition 25 and the porous partition 26 coincide with the anaerobic filter zone H and the contact oxidation zone I respectively along the water inlet direction, the composite zone C is transformed into the contact oxidation zone I, and the main body of the device 1 is along the water inlet direction In turn, it is anaerobic filter A, B area, contact oxidation I, D, E, F area and effluent area G. According to the filler filtration rate, adjust the influent flow rate, control the hydraulic retention time of the contact oxidation zone I and the water outlet zone G to be 30min and 40min respectively, the anaerobic filter A and B zones are each 80min, and the contact oxidation D, E, and F are each 80min. 60min, the total hydraulic retention time of the reaction is about 6.83h. C...

Embodiment approach 2

[0034] Use village and town sewage containing organic matter and high phosphorus concentration as the treatment object (pH=6-8, COD=500-600mg / L, NH 4 + -N=35-45 mg / L, TN=40-50 mg / L, TP=3-5 mg / L). The positions of the non-porous partition 25 and the porous partition 26 coincide with the contact oxidation zone I and the anaerobic filter zone H respectively along the water inlet direction, the compound zone C is transformed into the anaerobic filter zone H, and the main body of the device 1 along the inlet The water direction is the anaerobic filter A, B, H area, the contact oxidation area D, E, F and the water outlet area G. According to the filtration rate of the packing, the inflow flow is adjusted to control the flow rate of the anaerobic filter H area and the water outlet area G. The hydraulic retention time is 40min, the anaerobic filter A, B area is 80min each, the contact oxidation D, E, F area is 60min, and the total hydraulic retention time of the reaction is 7.0h. Co...

Embodiment approach 3

[0036] Use village and town sewage with high concentration of ammonia nitrogen and phosphorus as the treatment object (pH=6-8, COD=300-400mg / L, NH 4 + -N=50-55 mg / L, TN=55-60 mg / L, TP=3-5 mg / L). The positions of the non-porous partition 25 and the porous partition 26 coincide with the anaerobic filter zone H and the contact oxidation zone I respectively along the water inlet direction, the composite zone C is transformed into the contact oxidation zone I, and the main body of the device 1 is along the water inlet direction In turn, it is anaerobic filter A, B area, contact oxidation I, D, E, F area and effluent area G. According to the packing filtration rate, adjust the influent flow rate, control the hydraulic retention time of the contact oxidation zone I and the water outlet zone G to be 30min and 40min respectively, the anaerobic filter A and B zones are each 80min, and the contact oxidation zones D, E and F are each is 60min, and the total hydraulic retention time of t...

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Abstract

The invention relates to an integrated device and an integrated method for enhancing the denitrification and dephosphorization of dispersed village and town sewage. A water inlet (13) and a water outlet (6) of the device are positioned at the bottom of the left side and on the upper part of the right side of a device main body (1) respectively; a perforated clapboard (4) divides the device main body (1) into seven areas, namely an anaerobic filter area (A), an anaerobic filter area (B), a composite area (C), a contact oxidation area (D), a contact oxidation area (E), a contact oxidation area (F) and a water outlet area (G) in turn; the composite area (C) is divided into two chambers with the same volume through a nonporous clapboard (25), a closed clapboard (27) and a porous clapboard (26); ceramsite (2) serving as a filler is arranged in the anaerobic filter area (A), the anaerobic filter area (B) and an anaerobic filter area (H); hollow spheres (3) and a system are arranged; and both bottoms of the anaerobic filter area (A) and the contact oxidation area (F) are provided with a nitration solution refluxing port (10). The device and the method are easy and convenient to operate, sanitary, and low in consumption and have impact load resistance.

Description

technical field [0001] The invention relates to a sewage biochemical treatment device and method, in particular to a decentralized integrated treatment device for village and town sewage and an enhanced nitrogen and phosphorus removal method based on the device. With the characteristics of high efficiency, simplicity and sanitation, it is especially suitable for the treatment of decentralized village sewage that needs to be included in sensitive water bodies. Background technique [0002] During the "Eleventh Five-Year Plan" period, the scale of urban sewage treatment is expanding day by day, and the control of pollutants has achieved good results. However, the treatment of scattered sewage, especially village sewage, is still in its infancy. After entering the "Twelfth Five-Year Plan", the country's policy guidance and strategic investment in the field of environmental protection have further increased. Village and town sewage treatment is one of the fields of great researc...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 彭永臻龚灵潇霍明昕杨庆朱云鹏赵瑞
Owner BEIJING DRAINAGE GRP CO LTD
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