Filler-coupled denitrification equipment and method for rural domestic sewage treatment

A domestic sewage and denitrification technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, biological treatment devices, etc., can solve the problems of rural sewage treatment in trouble, poor adaptability to water quality changes, and increased labor consumption. , to achieve the effect of low cost operation cost, easy operation, saving operation and investment cost

Active Publication Date: 2021-10-15
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the MBR method has large aeration volume, large pressure loss, and high cost; it is sensitive to clogging and increases manpower consumption; the membrane life is short, and the cost of mold replacement is high; it has poor adaptability to water quality changes
Both traditional technologies will lead to difficulties in rural sewage treatment due to complicated operation or poor management

Method used

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  • Filler-coupled denitrification equipment and method for rural domestic sewage treatment
  • Filler-coupled denitrification equipment and method for rural domestic sewage treatment
  • Filler-coupled denitrification equipment and method for rural domestic sewage treatment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] The sewage to be treated in this embodiment comes from the domestic sewage of a certain school in Xi'an City, Shaanxi Province, and the water body is treated according to the technical solution of the present invention.

[0081] 1. Preparation of biological agents

[0082] (1) Preparation of biological agent in aeration tank

[0083] Water samples were taken from the domestic sewage of a school in Xi'an City, Shaanxi Province, and SYJ culture solution (the first biological agent culture solution) was added to the water samples at a volume ratio of 3:1 for cultivation and domestication. When the COD removal rate of the influent When it is above 80%, the removal rate of ammonia nitrogen is above 90%, and the domestication is over.

[0084] The formula of described SYJ nutrient solution (the first biological agent nutrient solution) is:

[0085] CH 3 COONa: 0.5g,

[0086] NH 4 Cl: 0.05g,

[0087] NaNO 3 : 0.05g,

[0088] K H 2 PO 4 : 0.05g,

[0089] MgSO 4 ·7H ...

Embodiment 2

[0131] The sewage to be treated in this embodiment comes from the domestic sewage of a village in Xi'an City, Shaanxi Province, and the water body is treated according to the technical solution of the present invention.

[0132] 1. Preparation of biological agents

[0133] (1) Preparation of biological agent in aeration tank

[0134] Take water samples from domestic sewage in a certain village and town, and add SYJ culture solution (the first biological agent culture solution) to the water samples at a volume ratio of 2:1 for cultivation and domestication. When the COD removal rate of the influent is above 80% , the removal rate of ammonia nitrogen is above 90%, and the domestication is over.

[0135] The formula of described SYJ nutrient solution (the first biological agent nutrient solution) is:

[0136] CH 3 COONa: 1.0g,

[0137] NH 4 Cl: 0.02g,

[0138] NaNO 3 : 0.10g,

[0139] K H 2 PO 4 : 0.02g,

[0140] MgSO 4 ·7H 2 O: 0.03g,

[0141] CaCl 2 : 0.03g,

[...

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Abstract

The invention discloses a filler-coupled denitrification equipment and method for rural domestic sewage treatment. The film-hanging Yulong filler and iron-carbon filler are respectively installed in the iron-carbon biological denitrification tank, and deflectors are installed at the connection between the aeration tank and the iron-carbon biological denitrification tank; the air intake main pipe is respectively connected to the aeration tank and the iron-carbon biological The denitrification tank extends to the bottom of the film-hanging Yulong filler and the iron-carbon filler; the upper part of the aeration tank and the iron-carbon biological denitrification tank is equipped with vent holes; the side wall of the sedimentation tank is equipped with an outlet pipe and a sludge discharge pipe; In the gas tank and iron-carbon biological denitrification tank, the biological bacteria agent is adsorbed by Yulong filler film and iron-carbon filler film to remove particulate phosphorus, SS and heavy metal ion pollutants in sewage. The invention has good nitrogen and phosphorus removal effect, and avoids the influence of low C / N ratio on biological denitrification in the sewage treatment process.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a filler-coupled denitrification device and a sewage treatment method for rural sewage treatment. Background technique [0002] With the improvement of people's living standards, the requirement for domestic sewage treatment reaches more than 70%. Since the population in rural areas is scattered and most of them have no drainage pipe network, it is more difficult to collect and treat sewage in a centralized manner. If the sewage is collected and treated in a centralized manner, the investment in the pipe network is often large, and it is easy to cause redundant construction. At present, the most widely used process in rural sewage treatment projects in my country is: traditional secondary treatment process A 2 For the / O method and the MBR method, the proportion of new technology applications is still relatively low. [0003] Although the traditional technology is matu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCC02F3/28C02F2203/006
Inventor 苏俊峰汪昭黄廷林李敏姚一欣李晨阳陈常伦柳佳然
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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