本文選題：巰基磷酸鹽　切入點：有機磷　出處：《環(huán)境工程學報》2017年01期

【摘要】：采用臭氧-混凝沉淀法去除廣西某鉛鋅礦選礦廠尾礦庫外排廢水中的有機磷。有機磷主要來源于廢水中殘留的巰基磷酸鹽類浮選藥劑苯胺黑藥(二苯胺基二硫代磷酸)和丁銨黑藥(二丁基二硫代磷酸銨)。實驗研究表明:廢水中磷的存在形式90%以上為有機磷,鈣鹽、鐵鹽和鋁鹽無法通過混凝沉淀將有機磷去除。研究了臭氧氧化時有機磷轉化為無機磷的規(guī)律,臭氧氧化可將大部分有機磷轉化為無機磷。轉化后的無機磷可通過硫酸鋁和PAM混凝沉淀去除,尾礦庫外排廢水中總磷(TP)濃度由1.4~1.7下降至0.2~0.4 mg·L~(-1),明顯低于《鉛、鋅工業(yè)污染物排放標準》(GB 25466-2010)中的≤1.0 mg·L~(-1)的要求。
[Abstract]:Organophosphorus in waste water from tailings reservoir of a lead-zinc ore concentrator in Guangxi was removed by ozone-coagulation precipitation method.Organophosphorus mainly comes from mercaptophosphate flotation reagent aniline black drug (diphenylamino dithiophosphoric acid) and ammonium butylammonium black drug (di#china_person0# ammonium dithiophosphate).The experimental results show that more than 90% of the phosphorus in the wastewater is organophosphorus, calcium salt, iron salt and aluminum salt can not be removed by coagulation precipitation.The conversion of organophosphorus to inorganic phosphorus during ozone oxidation was studied. Ozone oxidation can convert most organic phosphorus into inorganic phosphorus.After conversion, the inorganic phosphorus can be removed by aluminum sulfate and PAM coagulation precipitation. The concentration of total phosphorus in waste water from tailings reservoir is reduced from 1.4 to 0.2U 0.4 mg / L ~ (-1), which is obviously lower than the requirement of < lead, zinc industrial pollutant discharge standard (GB25466-2010) 鈮，

本文編號：1723196