IC厌氧反应器处理乳酸废水系统酸化后系统恢复的研究  

Research on System Restoration Following System Acidification in the Treatment of Lactic Acid Waste Water with IC Anaerobic Reactor

作　　者：郑晓春[1] 刘莹莹[2] 任自成[1] 

机构地区：[1]安徽丰原生物化学股份有限公司,安徽蚌埠233010 [2]合肥工业大学资源与环境学院,安徽合肥230009

出　　处：《安徽农业科学》2010年第16期8603-8605,8608,共4页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为IC厌氧反应器的推广应用奠定理论基础。[方法]IC厌氧反应器酸化后,通过调整运行控制参数对系统进行恢复,对从开始恢复到系统运行稳定这一期间系统的运行数据进行分析。[结果]酸化后系统的特征为：酸化系统出水的pH值下降至3.0-4.0,正常系统出水的pH值为6.0-7.0;酸化系统出水的COD上升至2 000-3 000 mg/L,正常系统出水的COD为1 000-1 500 mg/L,酸化系统的COD去除率由正常系统的75%下降至45%;酸化系统出水的挥发性有机酸（VFA）浓度超出正常系统VFA值的10倍,酸化系统出水的VFA浓度从正常系统的3.0 mmol/L上升至35 mmol/L。调整运行参数28 d后,系统的COD去除率基本恢复,出水VFA浓度也由25 mmol/L恢复至3.0 mmol/L左右。[结论]通过分析系统酸化的原因,经工艺调整可以在很短的时间内恢复酸化IC厌氧反应器的活性。[Objective] The purpose was to laid a theoretical basis for the popularization and application of IC anaerobic reactor.[Method] After the IC anaerobic reactor was acidified,the system was restored through adjusting operation and control parameters.And the operation data of system in the period from starting restoration and stable operation of system was analyzed.[Result] The characters of acidified system were as follow： the pH value of outlet water from acidified system was decreased to 3.0-4.0 and that of outlet water from normal system was 6.0-7.0;the COD of outlet water from acidified system was increased to 2 000-3 000 mg/L and that of outlet water from normal system 1 000-1 500 mg/L,the removal rate of COD of acidified system was decreased from 75% of normal system to 45%;the VFA concn.in outlet water from acidified system exceeded 10 times of VFA value of normal system and it was increased from 3.0 mmol/L of normal system to 35 mmol/L.After adjusting operation parameters for 28 d,the removal rate of COD of the system was restored basically and the VFA concn.in outlet water was restored from 25 mmol/L to be about 3.0 mmol/L.[Conclusion] Through analyzing reasons for system acidification,the activity of acidified IC anaerobic reactor could be restored in very short time through technological adjustment.

关 键 词：IC厌氧反应器 废水 pH 

分 类 号：X703[环境科学与工程—环境工程]