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试验以模拟猪场冲洗废水为处理对象,研究了亚铁盐、蛭石、碳化秸秆对于高磷高氮废水的处理能力,为高磷高氮养殖废水的预处理填料的选用提供参考。试验首先对不同用量、不同用时的亚铁盐、蛭石和碳化秸秆的处理效果进行对照试验。在试验中发现,碳化秸秆对于氮和磷以及其他污染物都有一定的处理效果,基本符合投药量增加处理效果变好的规律,在每百毫升投加25 g,处理时间为240 min时,对污水中氮磷的去除率都稳定在60%以上。
The experiment was to simulate the flushing wastewater in pig farms as treatment target. The treatment ability of ferrous salt, vermiculite and carbonized straw on the high phosphorus and nitrogenous wastewater was studied, which provided a reference for the selection of pretreatment fillers for high phosphorus and nitrogenous farming wastewater. The test first of different dosage, different use of ferrous salt, vermiculite and carbonized straw treatment effect comparison test. Found in the experiment, carbonized straw for nitrogen and phosphorus and other pollutants have a certain effect, basically consistent with the law to increase the dosage to deal with the effect of treatment, the addition of 25 g per 100 milliliters, the treatment time is 240 min, The removal of nitrogen and phosphorus in sewage are stable at 60%.