規(guī);i場污染物排放監(jiān)測與遷移轉(zhuǎn)化規(guī)律研究
本文關(guān)鍵詞:規(guī);i場污染物排放監(jiān)測與遷移轉(zhuǎn)化規(guī)律研究 出處:《江蘇農(nóng)業(yè)科學(xué)》2016年11期 論文類型:期刊論文
更多相關(guān)文章: 規(guī);i場 厭氧發(fā)酵 去除率 排污系數(shù)
【摘要】:為準(zhǔn)確了解規(guī);B(yǎng)殖場畜禽糞尿等污染物的排放量及其遷移轉(zhuǎn)化規(guī)律,以江蘇省農(nóng)業(yè)科學(xué)院六合動物科學(xué)研究基地規(guī);B(yǎng)豬場為研究對象,對規(guī);i場污水排出口和厭氧發(fā)酵處理排出口的污水的周年四季進行了連續(xù)3 d的監(jiān)測。結(jié)果表明:被研究的規(guī);i場,每年產(chǎn)生的污水中化學(xué)需氧量(COD)為16.6 t,總氮(TN)為3.8 t,總磷(TP)為0.6 t,年排放COD為8.0 t,TN為2.5 t,TP為0.4 t。按養(yǎng)殖場年存欄3 127頭計算,養(yǎng)殖場產(chǎn)污系數(shù)分別為COD 5.32 kg/(頭·年)、TN 1.21 kg/(頭·年)、TP 0.20 kg/(頭·年),養(yǎng)殖場排污系數(shù)分別為COD 2.56 kg/(頭·年)、TN 0.79 kg/(頭·年)、TP 0.11 kg/(頭·年)。通過厭氧發(fā)酵處理后,一年四季對豬場污水中COD、TN和TP有很好的去除效果。其中豬場污水中COD去除率為42.6%~61.1%,TN的去除率為56.2%~78.2%,TP的去除率為50.3%~88.4%。這為規(guī);B(yǎng)殖場的污染物排放量及其污染物遷移轉(zhuǎn)化規(guī)律的研究提供了依據(jù)。
[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.
【作者單位】: 江蘇省農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與環(huán)境研究所/農(nóng)業(yè)部江蘇耕地保育科學(xué)觀測實驗站;
【基金】:公益性行業(yè)(農(nóng)業(yè))科研專項(編號:201003014-1-2) 江蘇省農(nóng)業(yè)科技自主創(chuàng)新資金[編號:CX(15)1004]
【分類號】:X713
【正文快照】: 近年來,隨著中國畜牧業(yè)的發(fā)展,規(guī)模化、集約化養(yǎng)殖場越來越多,由于畜禽糞便量大,且不能得到有效利用,再加上糞便處理利用設(shè)施運行效果差,這就導(dǎo)致規(guī);i場排泄物及其轉(zhuǎn)化廢棄物對環(huán)境的污染日趨嚴重[1-2]。規(guī);、集約化養(yǎng)殖場的排泄物如何處理以及處理措施的消減率越來越
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