Biological circulation treatment method for bean sprout spraying wastewater

Abstract

The invention discloses a biological cycle treatment method for bean sprout spraying wastewater. The method comprises the following steps: (1) introducing bean sprout spraying wastewater into a fish pond, and enabling fish to swallow bean residues and generate fish manure; (2) introducing the fish manure sewage into a physical filter tank, and preliminarily filtering suspended impurities and fish manure; (3) introducing the preliminarily filtered water into a biological aerated filter for nitration reaction, and adding and domesticating nitrifying microorganisms into the biological aerated filter; (4) introducing the water after the nitration reaction into an anoxic biofilter for denitrification reaction, and adding and domesticating denitrifying microorganisms into the anoxic biofilter; and (5) making the water subjected to denitrification treatment flow into a plant planting area, and after plant root systems absorb nutritional ingredients in the water, making the water flow into the fish pond. According to the method, the bean sprout spraying wastewater can be effectively purified, the whole circulating system is in dynamic balance, and external drainage is not needed.

Description

technical field [0001] The invention belongs to the technical field of bean sprout spray wastewater treatment, and in particular relates to a biological cycle treatment method for bean sprout spray wastewater. Background technique [0002] Spraying of bean sprouts is the main water link in the production of bean sprouts, which can play the role of cooling and replenishing water. The main pollutants in the wastewater after spraying are suspended solids, impurities, proteins and other components. If the wastewater from bean sprout spraying is discharged directly, it will not only pollute the environment, but also affect the life and health of nearby residents, and cause a waste of water resources. Therefore, in order to reduce the amount of wastewater discharged, reduce the amount of tap water and reduce production costs, many researchers have tried to treat the wastewater from bean sprouts spraying. [0003] For example, Ma Weifang reported in "Ozone Activated Carbon / Ultrafi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a biological cycle treatment method for bean sprouts spray wastewater, aiming to solve the problem in the prior art that using a membrane filter system to treat bean sprouts spray wastewater does not meet the actual production requirements of the enterprise