酸碱对剩余活性污泥中氮磷类物质破解研究  

Research on Disposal Methods of N and P Released from Excess Activated Sludge

作　　者：谢逸俊 林晓丰 林燕娟[1] 潘迪琛 李祥[1] 张冬梅[1] 贾昌梅[1] 

机构地区：[1]广东石油化工学院环境与生物工程学院,广东茂名525000

出　　处：《广东石油化工学院学报》2015年第1期32-36,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：广东高校石油化工污染控制与清洁生产工程技术开发中心开放基金

摘　　要：污水处理过程中产生的剩余活性污泥量大,难以被处理处置,目前已成为污水厂自身的严重污染源。用不同浓度的HCl溶液、Na OH溶液分别对城市污水厂剩余活性污泥进行处理后,对其中溶解性氮、磷物质的破解释放规律进行了对比研究。实验结果表明,在泥水体积比相同的条件下,同浓度Na OH溶液对污泥NH4+-N的释放效果好于HCl溶液,但对溶解性PO43--P的释放质量浓度低于HCl溶液;两种方法中NH4+-N的最大释放质量浓度分别是106.0、153.4 mg/L,PO43--P的释放质量浓度分别是133.5、126.3 mg/L。研究为进一步污泥资源化应用提供了理论依据。The N and P released from the excess activated sludge are researched with different treatment methods,such as acid and alkali. At the same volume ratio and different reaction time,the concentration of NH4＋-N and PO43--P is monitored in all treatment systems. The results show that the three methods could make N and P better released from the activated sludge but the performance is different. Compared with the acid,the alkali better release NH4＋-N into the solution,on the contrary the PO43--P is released lower. In two treatment systems,the NH4＋-N concentration released into the solution is respectively 106. 0 mg / L and 153.4 mg / L,while PO43--P concentration is 129. 35 mg / L and 119. 82 mg / L,respectively.

关 键 词：剩余活性污泥 氮、磷释放 酸、碱处理 

分 类 号：X713[环境科学与工程—环境工程]