【作者】 武俊英；

【导师】 邓仕槐；

【作者基本信息】 四川农业大学 ， 环境工程， 2007， 硕士

【摘要】 畜禽污染主要由集约化养殖场或养殖区产生。虽然我国集约化畜禽养殖业起步较晚，但发展势头十分迅速，在很短时间内已达到相当的规模，并呈高速发展的趋势，畜禽养殖排放的大量的粪尿与废水已成为许多城市及农村的新兴污染源，是一些城市环境污染的根本原因。目前，我国对畜禽废水处理的研究方向主要通过生物处理法进行工艺治理，而利用絮凝剂对畜禽废水进行的处理的研究在国内还未见报道。本实验利用硫铁矿烧渣制取絮凝剂并应用于畜禽废水处理的研究，不仅有利于硫铁矿烧渣的资源化利用，并为畜禽废水的初级处理提供经验，有利于畜禽废水处理的发展。研究结论为：从硫铁矿烧渣中提取铁溶液的工艺条件为硫酸浓度为15％，熟化时间1h，熟化温度260℃，酸浸温度20℃，提取铁效率达到80％；硫铁矿烧渣铁回收率的主要影响因素是酸浓度和熟化温度；依照本实验研究得到的制取工艺及条件制备的硫酸亚铁溶液适用于制备聚合硫酸铁。采用自备硫酸亚铁溶液制备出高盐基度聚合硫酸铁产品，满足后续实验的要求：制取聚合硫酸铁（PFS）的工艺条件应为温度为30～60℃，硫酸亚铁溶液的pH值为1.0～2.0，按3％的比例进行投加H₂O₂。自制的聚合硫酸铁应用于畜禽废水的处理中，废水浊度的去除率达到90％，NH₃-N的去除率为45％左右，对COD的去除率达到72％，废水中TP的去除率达到97％。在满足浊度、COD，NH₃-N，TP去除率的情况下，出水酸度为6.0左右。更多还原

【Abstract】 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.更多还原