摘要
采用自制的铜负载D113树脂处理电解锰废水中高浓度氨氮,通过静态吸附试验,确定了最佳吸附与再生条件。模拟电解锰废水中氨氮的质量浓度为1 141.07 mg/L,在最佳试验条件下通过三级吸附交换,出水氨氮质量浓度为11 mg/L,达到GB 8978—1996《污水综合排放标准》要求,去除率达到99%;以1.5 mol/L的H2SO4作为再生剂对吸附饱和的树脂进行脱附再生,再生液多次脱附再生后可回用于电解锰生产工艺中,同时实现了废水的有效治理和资源的回收利用。
Self-prepared copper-loaded D113 resin was used to remove high-concentration ammonia nitrogen in electrolytic manganese wastewater,the optimal conditions for the adsorption and regeneration were determined through static adsorption.For the treatment of the stimulant electrolytic manganese wastewater with 1 141.07 mg/L of NH3-N,through the tertiary adsorption-exchange under the optimal condition,the mass concentration of ammonia nitrogen in the effluent water was 11 mg/L,and the removal rate reached 99%,which met the demand of GB 8978—1996 Integrated Wastewater Discharge Standard.The saturated adsorption resin was desorped and regenerated with 1.5mol/L H2SO4,and the regeneration solution after many times of desorption and regeneration could be reused in electrolytic manganese production process,which realized effective treatment of wastewater and resource recycling at one time.
出处
《工业用水与废水》
CAS
2011年第4期55-59,共5页
Industrial Water & Wastewater
基金
国家水体污染控制与治理科技重大专项项目(2009ZX07529-005)
关键词
负载树脂
电解锰废水
氨氮
高浓度
吸附
再生
回用
loaded resin
electrolytic manganese wastewater
ammonia nitrogen
high concentration
adsorp-tion
regeneration
reuse
