Bacteria-algae composition for synergistically degrading high-concentration ammonia nitrogen and phosphate as well as application and method thereof

Abstract

The invention discloses a bacteria-algae composition for synergistically degrading high-concentration ammonia nitrogen and phosphate as well as application and a method thereof. The composition is prepared from a heterotrophic nitrification-aerobic denitrification complex microbial inoculant and lesser chlorella, the complex microbial inoculant is formed by compounding cupriavidus, alcaligenes faecalis, acinetobacter and ochrobactrum TAC-2; chlorella is introduced into the complex microbial inoculant to form a bacterial-algae symbiotic system, chlorella generates oxygen through photosynthesis, dissolved oxygen is provided for denitrification of the complex microbial inoculant, the aeration energy consumption of the complex microbial inoculant system is reduced, and the complex microbial inoculant converts organic matters in wastewater into carbon dioxide through biological action to meet the growth requirement of chlorella. The method can improve the removal of ammonia nitrogen and total nitrogen by the complex microbial inoculant, increase the phosphate removal capability, solve the problem that the complex microbial inoculant cannot remove phosphorus, and can be used for treating high-concentration ammonia nitrogen and phosphate wastewater.

Description

Technical field [0001] The present invention relates to the field of treatment of wastewater by microbial treatment, and more particularly to a collique composition that is synergistic to degrade high concentration ammonia nitrogen and phosphate, and also relates to the application and treatment of bactelic composition in treatment wastewater. Background technique [0002] In recent years, the emissions of high concentration wastewater (ammonia nitrogen concentration> 200 mg / L) have become increasing. Improperization of high-amamine nitrogen wastewater is directly discharged into the water, which will lead to eutrophication, etc., which is becoming more serious, causing deterioration of water quality. In order to control hydromarmin nitrogen pollution, my country promulgated a new standard for pollutant control, of which the primary standard of ammonia nitrogen was 5.0 mg / L. The new standard is effective control of ammonia nitrogen, especially the effective control of high...

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Problems solved by technology

The Chinese patent with publication number CN109082387A discloses a heterotrophic nitrification-aerobic denitrification composite bacterial agent that can remove high ammonia nitrogen at low temperature, which has the advantages of high ammonia nitrogen tolerance, low temperature resistance, and high denitrification efficiency, but it is not effective in treating high-concentration wastewater (such as Breeding wastewater, high ammonia nitrogen, high phosphate) have the following problems in practical application: (1) the demand for oxygen of the composite bacterial agent is relatively high, and for high-concentration wastewater, the demand for oxygen is greater, resulting in the generation of aeration High energy consumption; (2) The composite bacterial agent only has denitrification ability, but has no ability to remove phosphate, and other methods need to be used to remove phosphate in wastewater; (3) The composite bacteria have the ability to remove ammonia nitrogen and total nitrogen The removal efficiency still needs to be further improved

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