摘要
针对某太阳能电池片技改项目中产生的氮磷废水,为实现"零排放",经处理后的废水全部回用于冷却循环系统补水。本工程实例采用"一级混凝+一级沉淀+二级混凝+二级沉淀+砂滤+碳滤+离子交换+超滤+三级反渗透"处理工艺,处理后的产水满足城市污水再生利用工业用水水质(GB/T 19923-2005)标准。同时,产生的浓水进入二效蒸发系统进行蒸发,系统产生的污泥经污泥池浓缩后泵提至污泥压滤机进行脱水后外运处置。
Aimed at the nitrogen and phosphorus wastewater produced from solar cell technical renovation project, and in order to achieve ＇zeroemissions＇, all the treated wastewater reused for water replenishing in cooling cycle system, ＇primarycoagulation＋primaryprecipitation＋secondary!pitation＋sand filter＋carbon filter＋ion exchange＋ultrafiltration ＋ three reverse osmosis＇ treatment process was used in this engineering project, and the treated effluent met the standard of ＇the reuse of urban recycling water-water quality standard for industrial uses＇（GB/T 19923-2005）.At the same time, the produced concentratedwater enteredthe two-effectevaporation system for evaporation.The produced sludge was pumped to filterpress for dewateringafter sludge enrichment in sludge tank.
作者
郭庆
GUO Qing(Academy of Environmental Planning ＆ Design Co., Ltd., Nanjing University, Nanjing 210000, Chin)
出处
《水处理技术》
CAS
CSCD
北大核心
2018年第4期136-139,共4页
Technology of Water Treatment
关键词
太阳能电池
含氟废水
氮磷废水
零排放
回用
混凝
反渗透
solar cell
fluoride wastewater
nitrogen and phosphorus wastewater
zero emissions
recycling
coagulation
reverse osmosis
