Construction description: Huali has constructed the sewage treatment and biogas projects of Babaodong, Datang, Tong, and Shayang pig farms with a total deal size of up to 1600t / d All of the Babaodong, Datang, Tong, and Shayang pig farms belong to Zhangxi Zhengbang Group. The aquaculture wastewater has a high concentration of organic wastewater (into the water COD> 20000mg / L), Huali has constructed the design, equipments, materials procurement and supply, transportation, warehousing, construction, installation, supervision and guidance, technical services, training, commissioning , commissioning and overall system performance guarantees and after-sales service for whole project

Construction effects: Using the patented B-UASB reactor + contact oxidation / SBR process, which the effluent achieves the "emission standards for livestock and poultry breeding industry" (GB18596-2001), has high social environmental and economic benefits.