光伏工业园区含氟废水处理工艺调试实例  

An Empirical Study on Process Operation and Debugging of Fluorine-Containing Wastewater in Photovoltaic Industrial Park

作　　者：唐玮曦 陆文超 王乾坤 王旭 李艾岭 王旭 TANG Weixi;LU Wenchao;WANG Qiankun;WANG Xu;LI Ailing;WANG Xu(Jiangsu Zhongpeng Environmental Protection Group Co.,Ltd.,Nanjing 210019,China;Lai′an Jinpeng Water Co.,Ltd.,Chuzhou 239236,China)

机构地区：[1]江苏中鹏环保集团有限公司,江苏南京210019 [2]来安金鹏水务有限公司,安徽滁州239236

出　　处：《净水技术》2025年第1期128-134,共7页Water Purification Technology

摘　　要：【目的】文章介绍某光伏工业园区含氟废水处理工程调试运行过程,重点介绍废水中氟离子质量浓度由8 mg/L降低至地表Ⅳ类水质要求的1.5 mg/L的调试情况。【方法】针对光伏工业园区所排废水的水质特点,调试采用生化调试和物化调试两步开展,生化调试后,再针对通过生化过程无法去除的CODCr和氟离子进一步开展物化调试。调试过程的重点是通过物化手段去除废水中的氟离子,通过调控加药量,调整加药点位等措施,以获得更好的氟离子去除效果,并获得更低的去处成本。【结果】生化调试完成后,初期采用在生化池前端的混凝沉淀池一步除氟的处理措施,发现需要投加的药剂量大、药剂投加产生的污泥量也过大的问题,污泥量大又导致大量污泥不能充分沉淀而溢流到后续生化工艺段中,污泥中的氟离子在生化段会重新分解又回到废水中,进而影响了系统的除氟效果,使后续处理设施中氟离子升高。为此采用分步投加药剂的措施,将药剂投加点分为前端混凝沉淀池和生化后的高效沉淀池两个点位,并且将高效沉淀池的除氟污泥回流至前端进一步发挥除氟作用等措施,有效降低了除氟剂投药量,并使出水氟离子指标稳定。【结论】通过生化物化工艺调试,使系统稳定运行,各项指标稳定达标,且除氟成本有效降低。[Objective]Introduce the commissioning and operation process of a fluoride wastewater treatment project in a photovoltaic industrial park,and focus on the commissioning situation of reducing the fluoride ion mass concentration in the wastewater from 8 mg/L to 1.5 mg/L.[Methods]In view of the water quality characteristics of the wastewater discharged in the photovoltaic industrial park,the commissioning is carried out in two steps:biochemical commissioning and physical and chemical commissioning.After the biochemical commissioning,the physical and chemical debugging is further carried out for CODCr and fluoride ions that cannot be removed through the biochemical process.The key point of the commissioning process is to remove the fluoride ions in the wastewater by physical and chemical means,and to obtain better fluoride ion removal effect and lower removal cost by regulating the dosage and adjusting the dosage point.[Results]After the completion of the biochemical commissioning,the initial use in the biochemical pool front coagulation sedimentation tank step except fluorine treatment measures,found the need to add large dosage,agent add the amount of sludge is too large,and large amount of sludge cannot fully precipitation and overflow to the subsequent biochemical process section,sludge fluoride ion in the biochemical section will decomposition and back to the wastewater,which affect the effect of fluoride system,make fluoride ion in the subsequent treatment facilities.For this reason,the measure of adding agents step by step is adopted,and the agent injection is divided into two points:the front end coagulation sedimentation tank and the biochemical efficient sedimentation tank,and the fluoride sludge of the high efficiency sedimentation tank is returned to the front end to further play the role of fluoride removal,which effectively reduces the dosage of fluoride removal and stabilizes the fluoride ion index of the effluent water.[Conclusion]Through the commissioning of biochemical physical.

关 键 词：光伏 含氟废水 氟离子 除氟剂 地表Ⅳ类水 

分 类 号：X703[环境科学与工程—环境工程]