摘要
采用水解酸化-SBR工艺处理乳品废水的试验研究.分析研究了水解酸化池内pH值与VFA,BOD与CODcr比值与CODcr去除率及氨氮随时间变化的相互关系;SBR池内CODcr与氨氮去除率和SBR池内溶解氧随时间变化的相互关系,以及水解酸化和SBR池内降解速率常数变化情况.试验结果表明,当进水CODcr质量浓度为1 250-1 830 mg/L,水解酸化池的最佳水力停留时间为6 h,SBR在排出比为1∶2,最佳的反应时间为4 h,出水可以达到国家污水综合排放标准(GB 8978—1996)二级排放标准.SBR池内溶解氧的递变规律,得出SBR池供氧方式宜采用渐减曝气的方式.
The pilot-scale studies on treatment of dairy wastewater by using hydrolysis acidification- SBR technology was introduced in this paper. The trial has analyzed the correlativity of VFA and value of pH, ratio of BOD and CODcr, removal efficiencies of CODer and variations of ammonia nitrogen with time in hydrolysis acidification reactor; the correlativity of removal efficiencies of CODer and ammonia nitrogen, varied dissolved oxygen with time in SBR reactor; in addition variations of degradation velocity constant in tow reactor. The experimental results demonstrate that the optimal HRT of SBR was 6 h, and the optimal reaction time of SBR was 4 h of hydrolysis acidification-SBR system at the CODcr of influent was 1 250 ～ 1 830 mg/L and eduction ratio of SBR was 1 ： 2, the effluent water was conform to the second grade of the national standard for wastewater discharge（ GB 8978-1996）. Basis on variety of dissolved oxygen in SBR, the aerobic mode of SBR should adopt decrescent aeration mode.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2007年第1期40-44,128,共6页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
国家高技术研究开发计划(863计划)(项目编号:2004AA601020)
