规模化猪场污染物排放监测与迁移转化规律研究

发布时间：2018-01-09 14:32

本文关键词：规模化猪场污染物排放监测与迁移转化规律研究　出处：《江苏农业科学》2016年11期 　论文类型：期刊论文

【摘要】：为准确了解规模化养殖场畜禽粪尿等污染物的排放量及其迁移转化规律,以江苏省农业科学院六合动物科学研究基地规模化养猪场为研究对象,对规模化猪场污水排出口和厌氧发酵处理排出口的污水的周年四季进行了连续3 d的监测。结果表明:被研究的规模化猪场,每年产生的污水中化学需氧量(COD)为16.6 t,总氮(TN)为3.8 t,总磷(TP)为0.6 t,年排放COD为8.0 t,TN为2.5 t,TP为0.4 t。按养殖场年存栏3 127头计算,养殖场产污系数分别为COD 5.32 kg/(头·年)、TN 1.21 kg/(头·年)、TP 0.20 kg/(头·年),养殖场排污系数分别为COD 2.56 kg/(头·年)、TN 0.79 kg/(头·年)、TP 0.11 kg/(头·年)。通过厌氧发酵处理后,一年四季对猪场污水中COD、TN和TP有很好的去除效果。其中猪场污水中COD去除率为42.6%~61.1%,TN的去除率为56.2%~78.2%,TP的去除率为50.3%~88.4%。这为规模化养殖场的污染物排放量及其污染物迁移转化规律的研究提供了依据。
[Abstract]:In order to understand accurately the quantity of pollutants such as excrement and urine of livestock and poultry and their migration and transformation, the research object was the large-scale pig farm of Liuhe Animal Science Research Base of Jiangsu Academy of Agricultural Sciences. Three consecutive days of annual monitoring of sewage discharged from large-scale pig farms and anaerobic fermentations were carried out for three consecutive days. The results showed that the scale pig farms were studied. The chemical oxygen demand (COD), total nitrogen (TNN), total phosphorus (TP) and COD were 16.6 t, 3.8 t, 0.6 t and 8.0t / year, respectively. The total nitrogen (TN) was 2.5 t / kg TP was 0.4 t. According to the annual storage capacity of 3 127 head per farm, the sewage production coefficient of the farm was 5.32 kg / (head 路year), respectively. TN 1.21 kg / (head 路year) TP 0.20 kg / (head 路year), the sewage discharge coefficient of farm was 2.56 kg / (head 路year), respectively. TN 0.79 kg / (head 路year) TP 0.11 kg / (head 路year old). After anaerobic fermentation, COD in pig wastewater was treated in the four seasons of the year. The removal rate of TN and TP in pig farm wastewater was 42.6% and 61.1% respectively. The removal rate of TN was 56.2%. The removal rate of TP is 50. 3% and 88. 4%, which provides a basis for the study of pollutant discharge and pollutant transfer and transformation in large-scale farms.
【作者单位】：江苏省农业科学院农业资源与环境研究所/农业部江苏耕地保育科学观测实验站;
【基金】：公益性行业(农业)科研专项(编号:201003014-1-2) 江苏省农业科技自主创新资金[编号:CX(15)1004]
【分类号】：X713
【正文快照】： 近年来,随着中国畜牧业的发展,规模化、集约化养殖场越来越多,由于畜禽粪便量大,且不能得到有效利用,再加上粪便处理利用设施运行效果差,这就导致规模化猪场排泄物及其转化废弃物对环境的污染日趋严重[1-2]。规模化、集约化养殖场的排泄物如何处理以及处理措施的消减率越来越

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