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 disc

Method used

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  • Green roof type modularized sewage grading treatment system

Examples

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Comparison scheme
Effect test

Example Embodiment

[0048] Example 1, see figure 1 :

[0049] The present invention provides a green roof modular sewage grading 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 nitrogen and phosphorus removal module sequentially from the aerobic pool O 1 , Hypoxia pool A 1 , Anaerobic tank A 2 , Aerobic pool O 2 Composition; the multi-stage AO coupled biofilm module is composed of hypoxia pool A 3 , Aerobic pool O 3 , Hypoxia pool A 4 , Aerobic pool O 4 Composition; The ultra-clean treatment module consists of denitration filter B 1 And dephosphorization 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 substrate 2. The aerobic pool O 1 Planting coin grass; hypoxic pool A 1 Planting water hyacin...

Example Embodiment

[0055] Example 2, see figure 1 :

[0056] The present invention provides a green roof modular sewage grading treatment system, which only includes an enhanced biological nitrogen and phosphorus removal module (see figure 1 Part 1 of the middle module), part of the raw water enters the anoxic tank A through the raw water pipe 2 respectively 1 And anaerobic tank A 2 , The sewage passes through the aerobic tank O 1 , Hypoxia pool A 1 , Anaerobic tank A 2 , Aerobic pool O 2 , O 2 Part of the sludge returned to A 1 , The remaining sludge is discharged. Above the top of the pool is an improved constructed wetland with aerobic pool O 1 Planting coin grass; hypoxic pool A 1 Planting water hyacinth; aerobic pond O 1 Plant Zailihua. After treatment, the effluent is better than the first level B standard of "Emission Standard of Pollutants for Urban Wastewater Treatment Plants" (GB18918-2002).

Example Embodiment

[0057] Example 3, see figure 1 :

[0058] The present invention provides a green roof modular sewage grading treatment system, which includes an enhanced biological nitrogen and phosphorus removal module and an ultra-clean treatment module (see figure 1 Part of the middle module 1 and module 3), part of the raw water enters the anoxic tank A through the raw water pipe 2 respectively 1 And anaerobic tank A 2 , The sewage passes through the aerobic tank O 1 , Hypoxia pool A 1 , Anaerobic tank A 2 , Aerobic pool O 2 After that, enter the denitration filter B 1 And dephosphorization filter B 2 . B 1 , B 2 There are 13 drain pipes. Above the top of the pool is an improved constructed wetland with aerobic pool O 1 Planting coin grass; hypoxic pool A 1 Planting water hyacinth; aerobic pond O 2 Plant Zailihua; Denitrification Filter B 1 Planting water lilies, the substrate is denitration filler 11; dephosphorization filter B 2 Plant Auntie, the substrate is phosphorus removal filler 12....

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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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