Preparation of fungus based on garden waste and its application

doi:10.14088/j.cnki.issn0439-8114.2020.14.012

Abstract

Abstract: Based on the concept of “using waste to control pollution”, a fungus with high pollution resistance prepared from garden waste was applied to polluted river water to realize the linkage treatment of solid waste and waste water. Garden waste content, substrate thickness and initial moisture content were taken as influencing factors. The effect of the content, substrate thickness and initial water content of garden waste on the preparation of spores was investigated, and the preparation process was optimized by response surface method. The results showed that the most influential factor on the yield of spore was substrate thickness, followed by garden waste content and initial moisture content. The optimum conditions were garden waste content 46%, substrate thickness 3 cm and initial moisture content 57%. Under such conditions, the actual results were close to the predicted values of regression equation. Then the prepared spores were activated and added to polluted river water at an inoculum of 0.50‰. After 54 hours of aeration, the removal rates of COD, NH₃-N and TP reached 84.97%, 97.07% and 51.64%, respectively. Continuous experiments demonstrated that this integrated system could effectively remove pollutants such as COD, NH₃-N and TP in polluted river water with high stability.

Key words: garden waste, fungus, waste water, preparation, response surface methodology, aeration

CLC Number:

Q89
X522

PENG Chun-yan, GAO Yu-hui, WU Hua-nan, ZHENG Wei-guo, LIU Tian-xiang, LI Jun-juan, YU Dong, ZHENG Wen-fang. Preparation of fungus based on garden waste and its application[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(14): 69-75.

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