混凝技术深度除磷的应用研究  

Study on the Application of Deep Phosphorus Removal by Coagulation Technology

作　　者：王琦 王余 金爽 张宁迁 WANG Qi;WANG Yu;JIN Shuang;ZHANG Ning-qian(Anhui Pushi Eco-Environmental Co.Ltd.,Hefei Anhui 230088,China)

机构地区：[1]安徽普氏生态环境有限公司,安徽合肥230088

出　　处：《环境科学导刊》2023年第3期38-43,共6页Environmental Science Survey

摘　　要：选取三种混凝药剂进行深度除磷试验并探究不同影响因素对总磷去除效果的影响。结果表明,不同混凝药剂对污水的除磷效率影响显著,其中,在同一加药量下,PAC的除磷效果最佳,总磷去除率最高为99%。pH值是影响混凝技术深度除磷的关键因素。当pH为7~8时,混凝剂呈现最佳除磷效果,总磷去除率可达98%以上。在工程应用中,PAC在合适的加药量范围内,出水TP浓度平均为0.03 mg/L,达到深度除磷的目的。针对进水pH值较低的污水处理项目,通过调节pH值可显著提高混凝剂除磷效率,使总磷平均去除率达到98%以上,为解决水体富营养化问题提供有效的解决思路。此外,本研究旨在优化混凝反应技术,为工程应用提供理论基础,有效提高污水处理效率并降低运营成本。Three coagulants were selected to carry out deep phosphorus removal experiments.The influence of different factors on total phosphorus removal efficiency was explored in this paper.The results showed that different coagulants had a significant effect on the phosphorus removal efficiency of sewage,and the best phosphorus removal efficiency of PAC was 99%under the same dosage of coagulants.The pH value was the key factor affecting the deep phosphorus removal of coagulation technology.When pH was 7~8,the coagulant showed the best phosphorus removal effect,and the TP removal rate could reach more than 98%.In engineering application,the average TP concentration in effluent was 0.03 mg/L within the proper dosage range of PAC,so as to achieve the purpose of deep phosphorus removal.In view of the wastewater treatment project with low influent pH value,the phosphorus removal efficiency of coagulant could be significantly improved by adjusting pH value,and the average removal rate of TP would reach more than 98%,which provided an effective solution to the problem of water eutrophication.In addition,the purpose of this study was to optimize the coagulation reaction technology to provide a theoretical basis for engineering application,effectively improve the efficiency of sewage treatment and reduce operating costs.

关 键 词：混凝反应 PAC PH 深度除磷 工程应用 

分 类 号：X703[环境科学与工程—环境工程]