(武漢理工大學(xué) 資源與環(huán)境工程學(xué)院，武漢，430070)
摘 要: 采用自行制備的改性脫磷劑對(duì)高磷赤鐵礦選礦廢水的除磷性能進(jìn)行研究。結(jié)果表明：對(duì)于pH 2.50~2.53、含磷98.85 mg/L的實(shí)際選礦廢水，改性脫磷劑的最佳投加量為22 g/L，除磷效率為99.32%，出水pH值為3.50；改性脫磷劑的除磷效果較好并可保持出水的酸度較低，有利于高磷赤鐵礦選礦酸性廢水的在線處理和循環(huán)利用。
關(guān)鍵字: 高磷赤鐵礦；酸性廢水；脫磷劑；改性；除磷
（School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China）
Abstract:The phosphate removal capability of modified dephosphorization agent used for acidic wastewater from high-phosphate hematite mineral processing was investigated. The results indicate that the modified dephosphorization agent can enhance phosphate removal effectively and keep low acidity of the effluent. For the actual mineral processing wastewater with pH value of 2.50−2.53, and phosphate concentration of 98.85 mg/L, the optimum dosage of modified dephosphorization agent is 22 g/L, and the corresponding phosphate removal is 99.32% and the effluent pH value is 3.50. The on-line treatment and circulation of the acidic wastewater can be achieved with the modified dephosphorization agent.
Key words: high-phosphate hematite; acidic wastewater; dephosphorization agent; modification; phosphate removal
