Research On PFS From Pyrite Cinder And Application In Poultry Waste Water

The Livestock pollution mainly occurred in farming area. The livestock industry starts later in our country, but the development is very fast, and arrives equal scale in a short time, and present the high-speed trend development, a great deal of but concentrated excrement urine and waste water in the livestock farming exhausted have become a newly arisen pollution source in many cities and village, have become the basic reason of some city pollution of the environments. Currently, the mainly research direction of processing to livestock liquid waste is a living creature processing, but the research that the flocculants used the livestock waste water haven't report in the domestic.This experiment burns the dregs system using the pyrite to take the flocculants and to apply in the poultry waste water processing research. That not only is advantageous in the pyrite cinder converting into resources use, and provides the experience for poultry waste water primary processing, is advantaged to the poultry waste water processing development. The research conclusion is: the best conditions of iron extraction from the Pyrite cinder is that acid density is 15%, mature time is lh, mature temperature is 260℃, sulfur acid-immersed temperature is 20℃, and the rate of extraction is 80%。The result displayed acid density and curing temperature are the major actor to iron recovery. The ferrous sulfate solution is suitable for the preparation polymerization iron sulfate. The high alkalize polymerization iron sulfate is satisfied following experimental, which is made by the ferrous sulfate solution. The condition is that the temperature is 30～60℃, the solution's pH is 1.0～2.0, adding the oxidant (H₂O₂) by three percent. Throwing the self-made polymerization iron sulfate to waste water, the turbidity elimination rate achieves 90%, NH₃-N's elimination achieves 45%, COD's elimination achieve 72%,TP's elimination achieves 97%. Satisfying elimination rate of the turbidity, in the COD, NH₃-N, TP, the discharging water's acidity is 6.0.