吹脱-沸石吸附法处理荧光粉生产废水研究  

Treatment of phosphor industrial wastewater by stripping-zeolite absorption technology

作　　者：张胜田[1] 江希流[1] 林玉锁[1] 郭庆[1] 安立超[2] 

机构地区：[1]国家环保总局南京环境科学研究所,南京210042 [2]南京理工大学环境科学与工程系,南京210094

出　　处：《环境工程学报》2007年第2期29-33,共5页Chinese Journal of Environmental Engineering

摘　　要：研究了吹脱-沸石吸附法处理荧光粉生产废水。正交试验结果表明:氨吹脱工艺中影响NH3-N去除率因素的重要性顺序为:pH>温度>气液比。当pH=11、气液比(V/V)=100∶1、温度T=40℃、吹脱时间t=120 m in,吹脱工艺对荧光粉生产废水中NH3-N的去除率为74.46%。试验确定的沸石吸附单元较佳的工艺参数为:滤速0.04 m/m in、接触时间14m in、pH=7.5,吹脱-沸石吸附工艺总NH3-N去除率96.04%。试验结果表明再生沸石氨吸附性能稳定,适于高氨氮的荧光粉生产废水处理。The treatment of phosphor industrial wastewater by stripping-zeolite absorb technology was studied. The orthogonal experimental results showed that the importance sequence of affecting factors on ammonia removal efficiency in stripping process were ： pH 〉 temperature 〉 gas-liquid ratio. Under the conditions of pH = 11, gas-liquid ratio（V/V） = 100：1 ,temperature = 40℃ ,stripping time = 120 min, the removal rate of ammonia nitrogen in stripping process is 74.46 %. The better technological parameters of zeolite-absorb process drew by experiment were： filtrate speed = 0.04 m/min,touch time = 14 min,pH = 7.5. The total ammonia nitrogen removal rate of stripping-zeolite absorption process was 96.04 %. The ammonia nitrogen absoption capacity of the regeneration zeolite was stable and suitable for the treatment of the high ammonia nitrogen concentration wastewater such as phosphor industrial wastewater.

关 键 词：荧光粉 废水 吹脱 沸石吸附 氨氮 再生 

分 类 号：X703.1[环境科学与工程—环境工程]