In-situ purifying dry powder preparation for polluted water sludge

Abstract

The invention discloses an in-situ purifying dry powder preparation for polluted water sludge and belongs to the field of environmental pollution treatment. According to the invention, microbial bacterium powder and an enzyme preparation are compounded and attached to a carrier to form the dry powder preparation; the microbial bacterium powder is prepared by singly culturing different microbial strains in a graded way and then mixing, freezing and drying a fermentation liquor; the enzyme preparation is a mixture of cellulase, neutral protease, low-temperature amylase and lipase; and the carrier is a mixture of zeolite, kaolin and diatomite. Through putting the dry powder preparation into the polluted water, the sludge in a river channel can be degraded and the content of organic substances in the water can be reduced; meanwhile, a large amount of human, material and financial resources can be saved, the operation is simple and convenient and periodic dredging work is not needed; and the in-situ purifying dry powder preparation for the polluted water sludge, disclosed by the invention, can be suitable for various polluted water bodies, has the advantages of wide application range and obvious dredging effect and is an efficient, clean, pollution-free, safe and environment-friendly water environment purifying and sludge decomposing agent.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control, and in particular relates to an in-situ purification dry powder preparation which is compounded with microorganisms and enzyme preparations and attached to carriers to treat polluted water bodies. Background technique [0002] With the continuous development of my country's economy and society and the acceleration of urbanization, more and more domestic sewage and industrial sewage are discharged into rivers, resulting in a decline in the water quality of rivers. According to the 2009 China Environmental Status Bulletin, among the 408 surface water monitoring sections of 203 rivers across the country, 57.3%, 24.3% and 18.4% of the sections have water quality of Grade I, III, Grade IV, and Grade V, respectively. The main pollution indicators are potassium permanganate index, five-day biochemical requirement and ammonia nitrogen. The above publicity results show that the ov...

AI Technical Summary

Problems solved by technology

Zhao Zhenyuan and others invented a water purification agent, patent application number CN201210003708, which mainly uses microorganisms to consume organic matter in water to achieve the purpose of purifying water. Great limitations, not well applicable to the current changing polluted water bodies

He Pinjing et al. discussed the research on the cleaning and disposal technology of sludge in polluted urban water bodies. The cutter suction dredging method supplemented by on-site centrifugal dehydration was used to treat the sludge at the bottom of the sludge water body. Manpower, material resources and funds, and high requirements for processing equipment, inconvenient operation, requires a relatively spacious operation site, and at the same time, the sludge after centrifugal dehydration still has the possibility of secondary treatment, and the purpose of pollution control has not really been achieved