Method for restoring micro-scale polluted reservoir water by using situ bio-contact oxidation

Abstract

The invention discloses a method for restoring micro-scale polluted reservoir water by using situ bio-contact oxidation. The method comprises the following steps: adopting fiber and sponge combined ball-type packings which are independently developed as carriers to perform screening, placing high effective strain which is obtained through screening in culture solution 'HS enrichment medium' to perform enrichment culture, then inoculating the strain which is through the enrichment culture in 'HSK culture medium' to perform expending cultivation and prepare biological microbial inoculum, placing packings in the microbial inoculum to perform biofilm formation and obtain biological immobilized packings; connecting the prepared biological immobilized packings with a string to fix the packings around the laboratory patented device water-lifting aerator of the invention and adopting water-lifting aeration-situ bio-contact oxidation to perform bioremediation to the micro-scale polluted reservoir water. The method of the invention can be used to effectively reduce the concentrations of COD, N, P and other pollutants in reservoir water and especially effectively lower the total nitrogen content of the micro-scale polluted reservoir water so as to fundamentally resolve the pollution problem of reservoir water, inhibit the growth of algae and control water eutrophication.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and specifically relates to a method for repairing slightly polluted source water by using in-situ biological contact oxidation, and is especially suitable for slightly polluted reservoir and lake water where eutrophication occurs. Background technique [0002] The pollution of source water is a common problem in the world today. Among the 110 key river sections of 7 major water systems and inland rivers in my country, 68% of them have water quality of Grade III, IV, and V. Nearly half of the length of existing rivers in my country has been affected. Pollution, 1 / 10 river lengths are seriously polluted, 90% of the waters in cities across the country are polluted, 13% of the main streams of major rivers, and 55% of the tributaries are polluted. The pollution of water sources is becoming more and more serious. The content of organic matter such as nitrogen and phosphorus exceeds the standard...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects or deficiencies in the prior art, the purpose of the present invention is to provide a method for repairing slightly polluted water source water by in-situ biological contact oxidation, so as to solve the increasingly serious pollution of source water in water sources, COD, N, P and other pollutants Exceeding the standard, water eutrophication occurs frequently, seriously endangering the safety of drinking water and human health

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