论文部分内容阅读
将原来直接投入养鱼塘的饲料(粪类、生物体、城镇有机废物和生活污水等)先装入沼气池中,让它发酵产生沼气后再将其渣滓即沼气肥水投入池塘等水域进行养鱼,称为沼肥养鱼。沼肥的肥效如何,是不是适合养鱼,这是人们关心的问题。为了说明这个问题,请参看沼肥水主要特性的测定结果: (1)理化性:比重为1.005—1.008,pH约为7,耗氧比原鲜料少几十倍以上,其颜色随原料配比及发酵时间长短而异。(2)复合性:因原料多样,故氧分全面,既有普通养份,又有氮、磷、钾等元素,此外还含有生长激素和腐殖酸等。
The original directly into the fish pond feed (manure, organisms, urban organic waste and domestic sewage, etc.) into the digester first, let it ferment produce biogas and then the waste gas that is biogas into the pond and other water for raising Fish, called marsh fish. The efficiency of biogas fertilizer, is not suitable for fish farming, which is a matter of concern. In order to illustrate this problem, please refer to the determination of the main characteristics of marsh water: (1) physical and chemical properties: the proportion of 1.005-1.008, pH is about 7, oxygen consumption less than the original raw material several times more than the color with the ratio of raw materials And the length of fermentation time vary. (2) Complexity: Because of the variety of raw materials, oxygen is comprehensive, both common nutrients, nitrogen, phosphorus, potassium and other elements, in addition to growth hormone and humic acid.