树脂吸附法处理硝基苯和硝基氯苯生产废水的研究

Study on the Treatment of Wastewater from Nitrobenzene and Nitrochlorobenzene Production by Resin Adsorption Process

研究了用ＣＨＡ－１１１树脂吸附处理硝基苯和硝基氯苯生产废水的最佳工艺条件，当废水中硝基苯类化合物含量为６３９ｍｇ／Ｌ时，ＣＨＡ－１１１树脂的工作吸附容量为１２６ｍｇ／ｍＬ，处理水量为１９０ＢＶ，处理后硝基苯类化合物的浓度＜５ｍｇ／Ｌ，去除率＞９９％；采用异丙醇作脱附剂，脱附率＞９７％；表明该树脂的吸附与脱附性能良好。

The optimun process conditions of treating wastewater from nitrobenzene and nitrochlorobenzene production by CHA111 adsorption resin have been studied.When the content of nitrobenzene compounds in the influent was 639 mg/L,the working adsorption capacity of the resin was 126 mg/L with 190 BV of the volume of treated wastewater,less than 5 mg/L of nitrobenzene compounds in the effluent(more than 99% of removal efficiency);the desorption efficiency of saturated resin by isopropyl alchol was more than 97%;proving that the resin has a good adsorption and desorption performance.