摘要:隨著我國規(guī)模化，集約化畜禽養(yǎng)殖場的迅速發(fā)展，畜禽養(yǎng)殖產(chǎn)生的污染日益嚴重，對空氣、水源、土壤都會造成不良的影響。工業(yè)化處理模式處理畜禽養(yǎng)殖業(yè)產(chǎn)生的污水具有占地少，適應性廣的特點，得到迅速的發(fā)展和推廣。其中厭氧-好氧處理在提高污水處理效果的同時，厭氧發(fā)酵階段可以產(chǎn)生沼氣，對污水實現(xiàn)能源開發(fā)，是保護農(nóng)業(yè)自然資源，促進現(xiàn)代化養(yǎng)殖業(yè)的好辦法。本文緒論部分具體介紹了畜禽養(yǎng)殖污染和處理現(xiàn)狀，沼氣工程發(fā)展狀況及沼氣利用現(xiàn)狀等。

　　　本文采用厭氧-好氧處理工藝，對南京市浦口區(qū)南農(nóng)實驗田養(yǎng)豬場進行污水能源開發(fā)與達標排放一體化設備系統(tǒng)設計。對采集水樣進行水質測定及厭氧發(fā)酵實驗，實驗發(fā)現(xiàn)厭氧階段適宜水力停留時間為5d，厭氧階段COD去除率為85%，同時結合國家及行業(yè)相關標準，對污水進行預處理、厭氧處理階段、好氧處理階段、沼氣應用等方面的設計。設計內(nèi)容包括設備工藝的選擇、流程確定、工藝參數(shù)確定等。

　　　本文還對所設計系統(tǒng)進行了投資估算和經(jīng)濟效益分析，經(jīng)估算分析發(fā)現(xiàn)本污水能源開發(fā)與達標排放一體化系統(tǒng)投資回收期為1.3年，有較好的經(jīng)濟效益。

關鍵詞：畜禽養(yǎng)殖污水，厭氧-好氧處理，沼氣

Abstract:With the rapid development of China's scale, intensive livestock and poultry farms, the pollution from raising livestock is increasingly serious.the pollution of air, water, soil can cause adverse effects. Industrial processing model to deal with sewage produced by livestock farming systems occupies little space, has the characteristics of adaptability, obtains the rapid development and promotion. anaerobic-aerobic treatment , as one type of the industrial processing model , can improve sewage treatment effect , at the same time, anaerobic ferment stage can produce biogas, which make sewage treatment achieve energy development and is a good solution to protect agricultural natural resources and promote the modernization of aquaculture. The introduction section of this paper introduces the raising livestock pollution and the treatment Status, methane project development status and biogas utilization status, etc.

　　　This paper adopts anaerobic-aerobic treatment process, designing a energy development and drainage standard integration equipment system for piggery on experimental field of Nanjing Agricultural University , which is located in

　　　Pukou District of Nanjing . Through the water determination and anaerobic fermentation experiments of the Collected water samples, it is found that the suitable hydraulic retention time for anaerobic stage is 5d , and anaerobic stage can remove 85% COD of the sewage. In combination with countries and related standards, the paper make the designment of the pretreatment, anaerobic treatment phase, aerobic processing stage, the biogas application, etc. Design elements include the choice of process equipment, the process identification, the process parameters identified and so on.    This paper also make investment estimate and economic benefit analysis for the designed system, the estimate analysis found the investment capital of this sewage energy development and drainage standard integration system can be recovered in 1.3 years , with good economic benefit.

Keywords: livestock sewage, anaerobic-aerobic treatment , methane