A method and device for inoculating activated sludge to treat and maintain black and odorous water bodies

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...

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.

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