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为了探索莱西市畜禽粪污产生与处理现状,笔者采用实地调研和发放问卷调研相结合的方法对莱西市规模化畜禽养殖场粪污生产和处理现状进行调研。结果表明:莱西市畜禽粪便产生总量为316.49万t,尿液产生总量为153.10万t,污染物产生总量为30.06万t;采用粪便堆积发酵成农家肥的养殖场占76.57%(134/175),无污水处理的养殖场占17.14%(30/175);畜禽粪污消纳土地量为10.26万hm~2,农田年负荷量为55.06 t/hm~2,畜禽污染风险指数为1.19。说明莱西市畜禽粪污产量大,无害化处理水平较低,污染威胁较严重。
In order to explore the status of livestock and poultry manure production and processing in Lacey City, the author investigated the status of manure production and disposal in large-scale livestock and poultry farms in Lacey City by means of a combination of field investigation and questionnaire survey. The results showed that the total amount of livestock and poultry manure produced in Lacey City was 3.1649 million tons, the total amount of urine produced was 15.310 million tons, the total amount of pollutants produced was 30.06 million tons, and the farms that used manure accumulation by fermentation were 76.57% (134/175), 17.14% (30/175) of the farms without sewage treatment, 1026,000 hm 2 land for livestock and poultry manure, 55.06 t / hm 2 farmland, The pollution risk index is 1.19. It shows that the production of livestock manure in Laixi City is large, the level of harmless treatment is low, and the threat of pollution is more serious.