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Updated: Jun 23, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
A reformed SBR technology integrated with two-step feeding and low-intensity aeration for swine wastewater treatment
Liang Lu1, Shuai Zhang, Hui Li
1Research Center of Eco-environmental Sciences, ZheJiang University, HangZhou, P.R. China.
Abstract:
Wastewater from animal farms in China is threatening the quality and security of the local water environment. A traditional sequencing batch reactor (SBR) and a reformed SBR integrated with two-step feeding and low-intensity aeration at laboratory scale were investigated in this study for biological removal of nutrients and organic matter from swine wastewater. A low efficiency and poor stability were found under the traditional SBR, and the reduction of total nitrogen (TN), total phosphorus (TP) and biochemical oxygen demand (BOD5) reached 89.1, 86.0 and 93.9%, respectively. When the wastewater was treated with the reformed SBR under the running cycle of anaerobic/anoxic-anaerobic/anoxic process, the reductions in TN, TP, and BOD5 reached a maximum of 94.0, 99.3 and 99.9%, respectively. The curves of oxidation reduction potential (ORP) and nutrients over time during operation of the reformed SBR could reflect the activity of denitrifying phosphorus-accumulating organisms (DNPAOs).
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