双膜法处理高浓度含磷废水工艺研究  

Study on treatment of wastewater containing phosphates with two-membrane process

作　　者：严小轩[1] 向琳[1] 

机构地区：[1]湖北兴发化工集团股份有限公司,湖北宜昌443711

出　　处：《磷肥与复肥》2014年第3期11-14,共4页Phosphate & Compound Fertilizer

摘　　要：考察了钙基软化+曝气混凝+超滤+反渗透工艺处理高浓度含磷废水的可行性和可靠性。以钙基软化+曝气混凝+超滤作为反渗透预处理工艺,可有效去除Ca2+、F-、PO43-等会造成反渗透浓水侧结垢的离子,去除率可以达到80%左右,剧毒物质单质磷去除率可以达到85%以上,经超滤后保证出水浊度小于0.5 NTU,超滤产水SDI控制在3.2以下;当反渗透的回收率不大于60%时,反渗透运行稳定,没有出现明显污堵情况。The feasibility and reliability of calcium-based softening ＋ aeration coagulation ＋UF＋RO process to treat high concentration of wastewater containing phosphates are inspected. With the calcium-based softening ＋ aeration coagulation ＋ UF as the pretreatment process for RO pretreatment, Ca^2＋, F^-, PO4^3- side that will reverse osmosis water scaling can be effectively removed, with removal rate of 80%, the toxic substances phosphorus removal rate is more than 85 %, the water turbidity is less than 0.5 NTU, the SDI of ultra filtration water is controlled below 3.2; When the recovery rate of less than 60% penetration, reverse osmosis operates stability, and has no obvious blockage.

关 键 词：含磷废水 曝气混凝 超滤 反渗透 双膜法 

分 类 号：X78[环境科学与工程—环境工程] X701