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近年来,随着养殖业的快速发展,规模化、集约化的畜牧养殖场和养殖小区不断增加,畜禽的粪便和污水排放量剧增,养殖污染问题越来越突出。一些畜牧养殖场的粪便随地堆积,污水任意排放,严重污染了周围的环境。夏季到来后,一些畜牧养殖场周围臭气冲天、蚊蝇成群。很多人士都认为,畜禽养殖污染问题已到了非解决不可的地步。
In recent years, along with the rapid development of aquaculture industry, the scale and intensification of livestock farms and breeding areas have been increasing. The excrement of livestock and poultry and sewage have increased dramatically. The problem of aquaculture pollution has become more and more prominent. The excrement of some livestock farms accumulates in any place and the sewage is discharged arbitrarily, seriously polluting the surrounding environment. After the summer, some livestock farms smell badly, mosquitoes flocks. Many people think that the pollution problem of livestock and poultry breeding has reached an unmanageable point.