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Study on the Application of Sewage Treatment Techniques of Livestock Farms in Northwest China

ZHOU Lei1，2，DENG Xian-de1，2，3，LIAO He-rong4,5，ZHANG Qing-dong1，2，XUE Xiao-yan6   

  1. (1.Chinese Academy of Agricultural Engineering，Beijing 100125，China；2.Key Laboratory of Farm Building in Structure and Construction, Ministry of Agriculture, Beijing 100125, China； 3.Wujiaqu Department of Science and Technology， Wujiaqu 831300， China；4.College of Animal Science and Technology， Shihezi University， Shihezi 832003， China；5.Wujiaqu Moden Agriculture Development Co., Ltd.， Wujiaqu 831300， China；6.Kelamayi SanDa Development Co., Ltd.， Kelamayi 834007， China)
  • Received:2013-10-10 Online:2014-04-20 Published:2014-05-27

Abstract: Based on the sewage treatment features of livestock farms in the extremely cold northwest region at high attitudes of China, a method called “solid-liquid separation-UASB-coagulation and sedimentation-SBR-absorption and filtration” was adopted to treat piggery wastewater. Moreover, the heating insulation measures were used to ensure that the operation of the project being normal. This project was started successfully after four months’ start-up process, and it works very well. The results showed that after the sewage treatment, the indices of CODcr, BOD5, SS, NH4-N and T-P meet the requirements of discharge standard of pollutants for livestock and poultry breeding (GB18596-2001).

Key words: plateau-cold region; insulation; solid-liquid separation-UASB-coagulation and sedimentation-SBR-absorption and filtration; start-up