Global Journal of Commerce & Management Perspective
Open Access

Department of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China

Publications

• Research Article   
  Effect of pH Control Strategy on Anaerobic Fermentation of Oxytetracycline Excess Sludge
  Author(s): Yunxia Wang, Hong Liu, Zhiqiang Tang, Qi Wang, Li Zhang and Yongzhi Chen*
  
  The high cost of treating Oxytetracycline (OTC) sludge poses a significant risk of secondary pollution, emphasizing the need efficient, eco-friendly, and safe methods. In this study, OTC-containing excess sludge was subjected to continuous pH adjustments to levels of 5, 8, 10, and 12, as well as intermittent regulation to pH 10 and 12 at a temperature of 35 ± 3°C. Notably, intermittent pH regulation was found to be more effective in producing Short-Chain Fatty Acids (SCFAs) compared to continuous regulation at pH 10. The maximum production of SCFAs reached was 1590.5 mg Chemical Oxygen Demand (COD)/g Volatile Suspended Solids (VSS), with acetic acid comprising 82% of the total SCFAs. Additionally, a sludge reduction of 33.1% was achieved. The concentration of the emitted OTC was 22.58 mg/L under intermittent pH regulation was comparable with 18.5 mg/L under continuous pH re.. View More»
  DOI: 10.35248/2157-7048.24.15.518

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