改良型Orbal氧化沟工艺对污水中主要污染物去除效率研究
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摘要
根据进出水的水质概况,监测改良型Orbal氧化沟工艺对污水中COD_(Cr)、BOD、氨氮、总磷的去除效果,分析污水处理装置总体处理效果。结果表明:污水COD、BOD、氨氮、总氮、总磷平均去除效率分别为68.34%、82.35%、53.64%、24.89%和16.94%,其中总磷的去除效率较低,这是因为厌氧池污泥老化、有机碳源不足、硝酸盐干扰释磷、氧化沟溶解氧控制不准确、存在一定的营养物质。
According to the water quality of incoming and outgoing water, the effect of the improved Orbal oxidation ditch process on the removal of CODCr, BOD, ammonia nitrogen, and total phosphorus in the waste water was monitored and analyzed. The results show that the average removal efficiencies of COD, BOD, ammonia nitrogen, total nitrogen, and total phosphorus were 68.34%, 82.35%, 53.64%, 24.89%, and 16.94%, respectively. The removal efficiency of total phosphorus is low because of the anaerobic tank, sludge aging, lack of organic carbon sources, phosphorus release from nitrate interference, inaccurate control of dissolved oxygen in the oxidation ditch, and presence of certain nutrients.
According to the water quality of incoming and outgoing water, the effect of the improved Orbal oxidation ditch process on the removal of CODCr, BOD, ammonia nitrogen, and total phosphorus in the waste water was monitored and analyzed. The results show that the average removal efficiencies of COD, BOD, ammonia nitrogen, total nitrogen, and total phosphorus were 68.34%, 82.35%, 53.64%, 24.89%, and 16.94%, respectively. The removal efficiency of total phosphorus is low because of the anaerobic tank, sludge aging, lack of organic carbon sources, phosphorus release from nitrate interference, inaccurate control of dissolved oxygen in the oxidation ditch, and presence of certain nutrients.
引文
[1]刘大中.典型城市污水处理厂提标改造[D].西安:西安建筑科技大学,2013.
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[5]韩云平,郭雪松,刘俊新.污水生物反应器中微生态特征及其与污水处理性能的关系——以Orbal氧化沟工艺为例[C].全国排水委员会年会论文集,2012.
[6]胡静.改良型Orbal氧化沟工艺脱氮除磷稳定和调控技术研究[D].重庆:重庆大学,2012.
[7]金鹏康,郑未元,王先宝等.倒置A2/O与常规A2/O工艺除磷效果对比[J].环境工程学报,2015,9(2):501-505.
[8]杜海波,王振江.影响城市污水处理过程生物脱氮除磷效率的因素[J].资源与发展,2006(3):48-50.
[9]门晓欣.Orbal氧化沟同时硝化/反硝化及生物除磷的机理研究[J].中国给水排水,1999(3):1-7.
[10]张师君.Orbal氧化沟硝化能力的评估方法及控制策略研究[D].西安:西安建筑科技大学,2013.
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[12]贺颖.污泥龄对侧流除磷反硝化除磷系统影响[D].重庆:重庆大学,2011.
[2]关伟,郭会平,赵学洋,等.我国城市污水处理现状及城市污水处理厂提标改造路径分析[J].辽宁大学学报(自然科学版),2015,42(4):378-384.
[3]王凯军,贾立敏.城市污水生物处理新技术开发与应用[M].北京:化学工业出版社,2002:1-595.
[4]庞洪涛,邱勇,薛晓飞,等.后置沉淀化学除磷工艺的优化控制研究[J].中国给水排水,2013,29(13):38-41.
[5]韩云平,郭雪松,刘俊新.污水生物反应器中微生态特征及其与污水处理性能的关系——以Orbal氧化沟工艺为例[C].全国排水委员会年会论文集,2012.
[6]胡静.改良型Orbal氧化沟工艺脱氮除磷稳定和调控技术研究[D].重庆:重庆大学,2012.
[7]金鹏康,郑未元,王先宝等.倒置A2/O与常规A2/O工艺除磷效果对比[J].环境工程学报,2015,9(2):501-505.
[8]杜海波,王振江.影响城市污水处理过程生物脱氮除磷效率的因素[J].资源与发展,2006(3):48-50.
[9]门晓欣.Orbal氧化沟同时硝化/反硝化及生物除磷的机理研究[J].中国给水排水,1999(3):1-7.
[10]张师君.Orbal氧化沟硝化能力的评估方法及控制策略研究[D].西安:西安建筑科技大学,2013.
[11]默文·C·戈伦斯齐.通过监测耗氧量速率来控制废水处理[P].CN96196321.2,1998-09-16.
[12]贺颖.污泥龄对侧流除磷反硝化除磷系统影响[D].重庆:重庆大学,2011.