Superior microbial acclimation method used for river water pollution management

Abstract

The invention relates to the field of river management, in particular to a superior microbial acclimation method used for river water pollution management. The superior microbial acclimation method comprises the steps of microbial acclimation stoste preparation, enriched medium preparation and microbial acclimation. According to the method provided by the invention, a microbial acclimation stoste is prepared according to actual conditions of the water sample and the bottom mud of a river to be managed, then an enriched medium is prepared, and finally, through repeated and continuous microbial acclimations and cultivations, a microorganism mixed culture is obtained. In the microorganism mixed culture, enriched cultivating goal bacterium has absolute advantage. On one hand, the acclimation process is simple, the operation is easy, and the cost is low, and on the other hand, goal bacterium can quickly survive, adapt to environment and propagate, environmental requirements are low, acclimated goal bacterium is high in content and has an absolute advantage, and the effect of river water pollution management is good.

Description

technical field [0001] The invention relates to river water pollution control, in particular to a dominant microorganism domestication method for river water pollution control. Background technique [0002] With the development of social economy and the improvement of people's living standards, the dense population brings domestic sewage, and the spread of small factories brings industrial wastewater. These untreated domestic sewage, untreated or untreated industrial production wastewater are also discharged with When the organic pollutants exceed the limit of natural purification that the river water body can hold, the dissolved oxygen in the water will be consumed rapidly and become anoxic, and the river water body will become eutrophic. The water body turns black and smelly. Due to the lack of oxygen, the survival of the original ecological organisms is directly threatened, until death, corpse decay, further pollution of the water body and stench, such a vicious cycle con...

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Problems solved by technology

[0004] For example, dredging projects can transfer pollutants in river sediment in a short period of time, which is a better way to control river sediment pollution, but it cannot solve the emergency purification of river water quality; In a short period of time, the water quality in the river can be purified by means of dilution and transfer, but the conditions required by this method are relatively special, and it is necessary to use a special river water level difference or a water pump lifting method to achieve water exchange, which is not conducive to saving resources. Moreover, this method only transfers pollutants to other water bodies, cannot remove pollutants, and treats the symptoms but not the root cause; the main purpose of river aeration and ecological engineering construction is to restore and strengthen the self-purification ability of the river itself, and gradually restore and purify the water quality. It takes a long time to achieve the effect of water quality purification, and is suitable as an auxiliary measure for rapid improvement of coagulation, but it is difficult to achieve the hydraulic conditions required for coagulation for ordinary slow-flow rivers, so that the coagulation effect is greatly reduced; although coagulation It can quickly eliminate the "blackness" of the water body, but the deodorization effect is not good; river sediment coverage is also a pollution control method for river sediment, which has certain advantages, but it is still unable to achieve emergency purification of river water quality, and the effect is slow. Unable to truly restore the natural ecology of the river