Composite efficient microbial preparation for treating difficultly-degradable waste water and preparation and application

Abstract

The invention discloses a composite efficient microbial preparation for treating difficultly-degradable waste water. The composite efficient microbial preparation comprises the following active ingredients of: bacillus, pseudomonas, alcaligenes eutrophus, aspergillus and yeast. The composite efficient microbial preparation has a unique treating effect on high-concentration organic sewage and highammonia and nitrogen sewage which are difficult to treat by the conventional activated sludge process and contain macromolecules and difficultly-degradable harmful constituents.

Description

technical field [0001] The invention relates to a composite high-efficiency microbial preparation for refractory wastewater treatment and its preparation and application. Background technique [0002] Biological wastewater treatment technology is the leading technology in the field of wastewater treatment. As an economical, reasonable and effective wastewater treatment technology, it plays an important role in improving the quality of water environment and preventing water pollution. [0003] The biological treatment of wastewater is to use the metabolism of microorganisms to decompose and transform pollutants in wastewater to achieve the purpose of purifying water quality. Its core is to cultivate and domesticate the dominant microbial flora suitable for the characteristics of wastewater, and maintain the microbial biomass and activity compatible with the concentration of wastewater pollutants, so that the dominant microbial flora can be treated at the best degradation acti...

AI Technical Summary

Problems solved by technology

However, due to the continuous development of industry and the continuous use of new technologies and materials in recent decades, the pollutants in the environment have become more complex, especially a large number of artificially synthesized compounds entering the environment, such substances are mainly alkanes, Olefins, alicyclic hydrocarbons, aromatic hydrocarbons, synthetic organic substances, especially macromolecules, refractory, toxic and harmful substances such as phenols (phenol, chlorophenol, cresol, nitrophenol, etc.), aromatic hydrocarbons ( Benzene, toluene, xylene, nitrobenzene, phenols, naphthalene, anthracene, quinone, etc.), cyanides, amines, and ammonia nitrogen enter the environment with the wastewater or solid waste discharged from the factory. Due to the complex structure of these substances Due to the strangeness of nature and biology, they cannot be decomposed and utilized by microorganisms in a short period of time. The traditional wastewater treatment method using activated sludge to cultivate domesticated microorganisms can no longer effectively remove these pollutants. These substances have accumulated in the environment for a long time. The ecological environment on which we live has caused great pollution, which has brought great harm to human physical and mental health.

In addition, due to the continuous development of urban construction, urban land is in short supply year by year, while the traditional activated sludge treatment process is long, occupies a large area, and the contradictions such as complex operation are becoming increasingly prominent.

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