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Method and device for treating and maintaining black and odorous water body by inoculating with activated sludge

A technology of black and odorous water body and inoculation activity, which is applied in water/sludge/sewage treatment, biological water/sewage treatment, energy and wastewater treatment, etc. Complete and other problems, to achieve the effect of maintaining the long-term stability of water quality, reducing nutrient pollution of ammonia nitrogen, and maintaining the ecological balance of water body

Active Publication Date: 2017-06-20
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent "A method for in-situ chemical treatment and restoration of heavily polluted black and odorous sediment (CN201610048562.2)" uses chemical repair of black and odorous water sediment. This method can quickly improve the phenomenon of black and odor in a short period of time, but often Not high, the degradation of organic matter is not complete, it can only be used as an emergency measure, and strong oxidants will inhibit or even kill aquatic organisms and destroy the aquatic ecosystem
[0004] The Chinese patent "A method for cultivating compound bacteria for nitrogen and phosphorus removal in black and odorous water (ZL201410136717.9)" uses black and odorous water sewage and nutrients to cultivate and domesticate indigenous microorganisms from activated sludge and black and odorous bottom mud The compound bacteria for nitrogen and phosphorus removal can effectively avoid secondary pollution after the use of chemical reagents, and significantly improve the effect of nitrogen and phosphorus removal in black and odorous water bodies. Moreover, the complex bacteria culture process takes a long time and is costly, which is limited in practical engineering applications
However, this application does not have an activated sludge dosing device, and cannot remove ammonia nitrogen pollution in the water body well. During restoration, it will interfere with floating plants on the water surface, and lacks the function of collecting and compressing redundant floating plants.

Method used

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  • Method and device for treating and maintaining black and odorous water body by inoculating with activated sludge
  • Method and device for treating and maintaining black and odorous water body by inoculating with activated sludge
  • Method and device for treating and maintaining black and odorous water body by inoculating with activated sludge

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Embodiment 1

[0048] In order to better remove organic pollutants in water bodies and reduce nutrient pollution of ammonia nitrogen, treatment is combined with long-term maintenance of water quality. In this example, the activated sludge of the secondary sedimentation tank of the sewage treatment plant is used as the highly active inoculated sludge, and the method of microbial strains in the activated sludge + floating plants is used to simultaneously treat the black and odorous water body.

[0049] In this embodiment, the treatment and maintenance of black and odorous water bodies mainly use a special device----a workboat to complete the operation process. In this embodiment, a mud-water mixing system, an oxygen-increasing aeration system, a sludge dosing and collection system, a floating plant collection and transmission system, a floating plant dehydration compression system, a power system, and a control system are installed on the hull of the workboat.

[0050] see figure 1 , figure...

Embodiment 2

[0071] A method and device for inoculating activated sludge to treat and maintain black and odorous water bodies in this embodiment are basically the same as in Embodiment 1, except that the mud flushing pipe 304 in this embodiment is inclined downward by 60°. Plant native floating water plants on the water surface of the river—water turtles, which are planted on the water surface on both sides of the river, with an area of ​​1 / 4 of the water body area; add active sludge to the river according to the ratio of activated sludge to water sediment mass ratio of 1:6 sludge.

Embodiment 3

[0073] A method and device for inoculating activated sludge to treat and maintain black and odorous water bodies in this embodiment are basically the same as in Embodiment 1, except that the mud flushing pipe 304 in this embodiment is inclined downward by 45°. Plant native floating water plants on the water surface of the river—water turtles, planted on the water surface on both sides of the river, the area is 1 / 3 of the water body area; add active sludge to the river according to the mass ratio of activated sludge to water body sediment mass ratio of 1:10 sludge.

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Abstract

The invention discloses a method and device for treating and maintaining a black and odorous water body by inoculating with activated sludge, and belongs to the technical field of water environment control. According to the method and device for treating and maintaining the black and odorous water body by inoculating with the activated sludge, the black and odorous water body is treated synchronously by ''inoculating with the activated sludge and planting floating plants'', the amount of active microorganisms with degradability in the water body is increased, the removal effect of organic pollutants in the water body is improved and the nutrient pollution ammonia nitrogen concentration is reduced; and the device for treating and maintaining the black and odorous water body is a workboat which integrates the functions of activated sludge addition, sediment collection, ventilation and oxygenation, mixing of sludge and water, floating plant collection and transmission, compression and dehydration and the like, conducts in-situ control and remediation without destructive work on the water ecology, and has broad application prospects in the field of black and odorous water body control.

Description

technical field [0001] The invention belongs to the technical field of black and odorous water environment treatment, and more specifically relates to a rapid and non-ecological damage in-situ treatment and maintenance method for black and odorous water. Background technique [0002] The black and odorous urban water body loses its use function, which not only affects the landscape and daily life, but also brings harm to the health of residents. The "Water Pollution Prevention and Control Action Plan" officially issued by the State Council in April 2015 clearly stipulates that by 2020, the black and odorous water bodies in the built-up areas of cities at the prefecture level and above in my country will be controlled within 10%. Therefore, the treatment and restoration of black and odorous water bodies has become an urgent problem to be solved. [0003] At present, the commonly used methods of black and odorous water restoration include chemical restoration, physical restor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/32
CPCC02F3/1236C02F3/32Y02A40/22Y02W10/10Y02W10/37
Inventor 胡小兵谢瑞桃韦京云张新喜唐素兰朱荣芳
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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