A green roof modular sewage classification treatment system

A hierarchical treatment, modular technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, biological treatment devices, etc., can solve the problem of low concentration nitrogen and phosphorus treatment effect is not obvious, the treatment effect is unstable, and the treatment efficiency No high problems, to achieve the effect of reducing the amount of artificial aeration, stable operation, and good treatment effect

Active Publication Date: 2021-09-07
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment efficiency of this technology is not high, the treatment effect is unstable, and it is greatly affected by the season, so it is often used as an auxiliary means in the sewage treatment process.
At present, in most sewage treatment technologies, the sewage will be discharged into the constructed wetland after biological treatment for advanced treatment, but the treatment effect of many plants on low-concentration nitrogen and phosphorus is not obvious, and the constructed wetland is often unable to treat it as a tail water treatment unit. full capacity

Method used

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  • A green roof modular sewage classification treatment system

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Experimental program
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Effect test

Embodiment 1

[0048] Example 1, see figure 1 :

[0049] The invention provides a green-top modular sewage classification treatment system, which includes mutually independent enhanced biological nitrogen and phosphorus removal modules, multi-stage AO coupling biofilm modules, and ultra-clean treatment modules (see figure 1 ); the enhanced biological denitrification and dephosphorization module is successively composed of aerobic pool O 1 , anoxic pool A 1 , anaerobic pool A 2 , aerobic pool O 2 Composition; the multi-level AO coupling biofilm module is sequentially composed of anoxic pool A 3 , aerobic pool O 3 , anoxic pool A 4 , aerobic pool O 4 Composition; the ultra-clean treatment module consists of denitrification filter tank B 1 and phosphorus removal filter B 2 composition.

[0050] Further, above the top of the pool is an improved constructed wetland, the improved constructed wetland includes plants 1 and constructed wetland matrix 2, and the aerobic pool O 1 Planting mo...

Embodiment 2

[0055] Example 2, see figure 1 :

[0056] The present invention provides a kind of green roof type modularized sewage graded treatment system, only comprises the enhanced biological denitrification and dephosphorization module (see figure 1 Part 1 of the middle module), part of the raw water enters the anoxic pool A respectively through the raw water pipe 2 1 and anaerobic tank A 2 , the sewage passes through the aerobic pool O 1 , anoxic pool A 1 , anaerobic pool A 2 , aerobic pool O 2 , O 2 Part of the sludge is returned to A 1 , and the remaining sludge is discharged. Above the top of the pool is an improved constructed wetland, and the aerobic pool O 1 Planting money grass; anoxic pond A 1 Plant water hyacinth; aerobic pond O 1 Plant Zaili flowers. The treated effluent is better than the Class B standard of the "Pollutant Discharge Standard for Urban Sewage Treatment Plants" (GB18918-2002).

Embodiment 3

[0057] Example 3, see figure 1 :

[0058] The invention provides a green-top modular sewage classification treatment system, including an enhanced biological denitrification and dephosphorization module and an ultra-clean treatment module (see figure 1 module 1 and module 3), part of the raw water enters the anoxic pool A respectively through the raw water pipe 2 1 and anaerobic tank A 2 , the sewage passes through the aerobic pool O 1 , anoxic pool A 1 , anaerobic pool A 2 , aerobic pool O 2 After that, it enters the denitrification filter B 1 And phosphorus removal filter B 2 . B 1 , B 2 All establish mud discharge pipe 13. Above the top of the pool is an improved constructed wetland, and the aerobic pool O 1 Planting money grass; anoxic pond A 1 Plant water hyacinth; aerobic pond O 2 Planting Zailihua; denitrification filter B 1 Planting water lilies, the substrate is denitrification filler 11; dephosphorization filter B 2 To plant Sagittarius, the substrate...

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Abstract

The invention provides a green-top modular sewage classification treatment system including mutually independent enhanced biological nitrogen and phosphorus removal modules, multi-stage AO coupling biofilm modules, and ultra-clean treatment modules; the enhanced biological nitrogen and phosphorus removal modules are OAAO pools connected in series ; The multi-stage AO coupling biofilm module is a two-stage AO pool in series; the ultra-clean treatment module is a denitrification filter and a phosphorus removal filter in series. In the enhanced biological denitrification and phosphorus removal module and the multi-stage AO coupling biofilm module of the present invention, the activated sludge is coupled with the biofilm, the ultra-clean treatment module is equipped with nitrogen and phosphorus removal fillers, and the top of each module pool is set as an improved constructed wetland , biological, chemical and ecological treatment combined to achieve deep denitrification and phosphorus removal; each module is combined with each other to treat sewage to achieve hierarchical treatment, which can not only meet the current sewage treatment requirements, but also meet the future sewage treatment needs; at the same time, the system has It has a series of advantages such as strong anti-shock load capacity, good treatment effect, stable operation, low cost, and high landscape benefit.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a green-top modular sewage classification treatment system. Background technique [0002] At present, the problem of sewage treatment has been widely concerned by the society, and a large number of sewage treatment technologies continue to emerge. Existing sewage treatment plants in our country discharge water, and the specific implementation of discharge standards is determined by various factors. Generally, refer to the first-class A or B standards in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002). However, with the development of the economy and the improvement of people's living standards, the requirements for sewage treatment are also increasing. It is an inevitable trend for future development to reach a higher standard for the effluent after treatment. [0003] The AAO process is composed of anaerobic zone, anoxic zone, aerob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/32C02F3/34C02F101/16C02F101/10
CPCC02F3/302C02F3/32C02F3/34C02F2101/105C02F2101/16C02F2203/006
Inventor 李柏林王恒李晔
Owner WUHAN UNIV OF TECH
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