Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (13): 91-95.doi: 10.11924/j.issn.1000-6850.casb18010080

Special Issue: 畜牧兽医 农业工程

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A Case Study of Wastewater Treatment on Pig Farm

  

  • Received:2018-01-15 Revised:2018-03-22 Accepted:2018-04-13 Online:2019-05-05 Published:2019-05-05

Abstract: The purpose is to study the combined treatment and disposal of pig farm wastewater. The wastewater of pig farms in Yong’an, Fujian was treated by solid-liquid separation, anaerobic fermentation and biological lagoon sequentially. The results show that the effluent quality of SS, CODcr, BOD5, NH3-N and TP is 48.0, 138.0, 37.3, 41.6 and 2.02 mg/L, respectively, meeting the discharge standard of pollutants for livestock and poultry breeding (GB 18596-2001). Analysis of the investment cost and benefit indicate that the technique has low cost and soon payback.