Packing coupling denitrification device 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 operating cost, large labor consumption, saving operating and investment costs

Active Publication Date: 2019-09-10
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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  • Packing coupling denitrification device and method for rural domestic sewage treatment
  • Packing coupling denitrification device and method for rural domestic sewage treatment
  • Packing coupling denitrification device and method for rural domestic sewage treatment

Examples

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 packing coupling denitrification device and method for rural domestic sewage treatment. The device comprises an aeration tank, an iron-carbon biological denitrification tankand a sedimentation tank which communicate with one another in sequence; the aeration tank communicates with a sewage inlet pipeline; a biofilm Yulong filler and an iron-carbon filler are respectivelyarranged in the aeration tank and the iron-carbon biological denitrification tank; a flow guide plate is arranged at the communication position of the aeration tank and the iron-carbon biological denitrification tank; an air inlet main pipe separately communicates with the aeration tank and the iron-carbon biological denitrification tank and extends into the bottom of the biofilm Yulong filler and the bottom of the iron-carbon filler; the upper part of the aeration tank and the iron-carbon biological denitrification tank are respectively provided with exhaust holes; and a water outlet pipe and a sludge discharge pipe are arranged on the side wall of the sedimentation tank. Biological agents are respectively adsorbed in the aeration tank and the iron-carbon biological denitrification tankin modes of Yulong filler biofilm and iron carbon filler biofilm, so that particulate phosphorus, suspended solid (SS) and heavy-metal ion pollutants in the sewage are removed. The nitrogen and phosphorus removal effect is good, and influence of low C/N ratio on biological denitrification in a sewage treatment process is avoided.

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 Applications(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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