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1 淤泥的危害 精养高产池塘由于鱼(虾等)的粪便、残剩饵料、有机肥料等的不断积累,加上泥沙混合,在池底形成一定厚度的淤泥。淤泥中含有大量有机物、细菌。有机物经细菌作用,氧化分解,消耗大量氧,往往使池塘下层水中本来不多的氧消耗殆尽,造成缺氧状态,在淤泥中嫌气性细菌占绝对优势,对有机物进行发酵作用,产生大量还原性中间产物。塘底淤泥和鱼类排泄物经硝化作用产生
1 Harm of Sludge Cultivation of High-yielding Ponds Due to the continuous accumulation of excrement of fish (shrimp etc.), residual foodstuff, and organic manure, sediment is mixed to form a certain thickness of sludge on the bottom of the pond. Sludge contains a lot of organic matter, bacteria. Organic matter by bacteria, oxidative decomposition, consumption of large amounts of oxygen, often less water in the pond water was depleted, resulting in hypoxia, the anaerobic bacteria in the sludge accounted for the absolute advantage of organic fermentation, resulting in a large number Reducing intermediates. Silt and fish pond excrement produced by the nitrification