一、规模化猪猪粪尿对环境的污染环保问题是当前乃至将来相当一段时间内畜牧业面临的一个极其重要的问题。近年来,规模化猪场的建设和发展克服了以往散户养殖的诸多弊端,但也导致了猪粪尿及污水处理的问题日益严峻。传统散养模式,由于饲养数量少,一般为数头至数十头,因而粪尿排放量少,不会超出周边环境自净能力,完全可以通过堆积还田作为肥料加以利用。而饲养规模大、集约化程度高的规模 First, the scale of pig manure on the environment pollution The environmental protection issue is an extremely important issue facing the husbandry in the current and future quite a period of time. In recent years, the construction and development of large-scale pig farms have overcome many shortcomings of the past, but also led to the problem of pig manure and sewage treatment is becoming more and more serious. Traditional free-range mode, due to the small number of breeding, usually a few heads to dozens of head, so less excretion of urine, will not exceed the self-purification capacity of the surrounding environment, can be used as fertilizer by the accumulation of back to the field. The scale of raising large, intensive high-scale