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近20年来,我国畜禽养殖业发展迅速,禽蛋、禽肉、生猪产量已位居世界第一,成为世界养殖大国。但畜禽粪便处理问题长期困扰着养殖业的发展。如果把畜禽粪便堆积在一起,任其腐烂,造成大量的细菌病毒繁殖传播,蚊子、苍蝇泛滥,臭气难挡,严重影响了生态环境。如果不经处理畜粪污水排入河流、湖泊、稻田等水域,使水中的水生植物,特别是藻类大量繁殖,消耗水中含氧,严重威胁鱼类生存和影响水稻生长。如何
In the past 20 years, the livestock and poultry breeding industry in our country has been developing rapidly. The output of eggs, poultry meat and pigs has ranked first in the world and has become the world’s major breeding country. However, the problem of animal manure disposal has long plagued the development of aquaculture. If the poultry manure piled together, let it rot, resulting in the spread of a large number of bacterial and viral transmission, mosquitoes, flies flooding, smelly stampede, seriously affected the ecological environment. If untreated livestock excrement is discharged into rivers, lakes, paddy fields and other waters, aquatic macrophytes, especially algae, multiply in large quantities and consume oxygen in the water, which seriously threatens fish survival and rice growth. how is it