In situ ecological restoration method of dominant microorganisms in river water pollution

Abstract

The invention relates to the field of canal treatment and specifically relates to a canal water pollution superior microorganism in-situ ecological restoration method. The canal water pollution superior microorganism in-situ ecological restoration method comprises the steps of measuring parameters of a canal water environment, acquiring and detecting a water sample, acquiring a bottom mud of a canal, preparing a microorganism domestication primary liquid, preparing an enrichment culture medium, domesticating the microorganism, preparing a solid inoculant, putting the solid inoculant into the canal, and detecting whether the parameters of the water sample reach the standards within 10-30 days and 80-90 days starting from the time when the solid inoculant is put. According to the method, the construction and operation costs are low, the construction is convenient and environment-friendly, and does not affect the surrounding resident and environments, the management and the maintenance are simple, no secondary pollution is caused, the purification and restoration effects are good, the self-cleaning capacity of a canal water body is strengthened after the treatment for half a year to one year, local grasses and creatures naturally grow and propagate, an original biologic chain is restored, and the purpose of in-situ biological restoration of the water environment is fulfilled.

Description

technical field [0001] The invention relates to river water pollution control, in particular to an in-situ ecological restoration method for dominant microorganisms polluted by river water. 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 vici...

AI Technical Summary

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

Images