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Green roof type modularized sewage grading treatment system

A hierarchical treatment and modularization technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, biological treatment devices, etc., can solve problems such as low treatment efficiency, large seasonal influence, and unstable treatment effect. Achieve the effect of improving denitrification efficiency, improving denitrification effect, and strengthening nitrification

Active Publication Date: 2019-03-22
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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  • Green roof type modularized sewage grading treatment system

Examples

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 roof type modularized sewage grading treatment system. The green roof type modularized sewage grading treatment system comprises an intensified biological nitrogen and phosphorus removal module, a multi-level AO coupling biological film module and a super-purifying treatment module which are independent from each other; the intensified biological nitrogen and phosphorus removal module is composed of serially connected OAAO tanks; the multi-level AO coupling biological film module is composed of serially connected two-level AO tanks; the super-purifying treatmentmodule is composed of a denitration filter tank and a dephosphorization filter tank in serial connection with each other. In the invention, activated sludge in the intensified biological nitrogen andphosphorus removal module and the multi-level AO coupling biological film module is coupled with a biological film; a nitrogen and phosphorus removal filler is arranged in the super-purifying treatment module; modified artificial wetlands are arranged on the top of modules and tanks; deep nitrogen and phosphorus removal can be realized through the combination of biological, chemical and ecologicaltreatment; all the modules are combined for treating sewage, so that grading treatment can be realized, present sewage treatment requirements can be met and future sewage treatment requirements alsocan be met; the system has the advantages of high capacity of resisting against impact load, excellent treatment effect, stable running, low cost, high landscape benefit, and the like.

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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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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