天然沸石对氮肥工业废水的处理性能研究

发布时间：2018-10-09 08:23

【摘要】：针对中国华北地区氮肥工业废水含高浓度氨氮、超标磷与难降解成分的问题,研究了附近区域不同品种沸石的工业废水处理性能与表征。研究结果表明:1)华北地区具有代表性的绿色沸石对氮肥工业废水的脱氮效果较其他品种沸石显著,其对氮的吸附容量达到10.18mg/g左右;2)氮肥工业废水经过不同品种沸石的吸附作用后,其总磷浓度基本达到《污水综合排放标准》(GB 8978—1996)一级排放标准;3)沸石对COD与H~+具有一定的吸附作用,吸附后氮肥工业废水的导电性能下降;4)丰富的化学成分与良好的物理特性使绿色沸石具有显著的离子吸附与交换性能。对于高浓度氮肥工业废水,绿色沸石吸附法较生物降解法具有更广阔的应用前景。
[Abstract]:In order to solve the problems of high concentration of ammonia nitrogen, excess phosphorus and refractory components in the wastewater of nitrogen fertilizer industry in North China, the treatment performance and characterization of industrial wastewater of different zeolites in the vicinity were studied. The results showed that the denitrification effect of representative green zeolites in North China was better than that of other zeolites. The adsorption capacity of nitrogen is up to that of 10.18mg/g (2) the nitrogen fertilizer industrial wastewater is adsorbed by different zeolites. The total phosphorus concentration basically reached the first class discharge standard (GB 8978-1996) of GB 8978-1996. The zeolite had a certain adsorption effect on COD and H ~. The conductivity of nitrogen fertilizer industrial wastewater decreased after adsorption. (4) the rich chemical composition and good physical properties made green zeolite have remarkable ion adsorption and exchange properties. For high concentration nitrogen fertilizer industrial wastewater, green zeolite adsorption method has a wider application prospect than biodegradation method.
【作者单位】：河北科技大学环境科学与工程学院;河北省污染防治生物技术实验室;河北科技大学建筑工程学院;
【基金】：河北省科学研究计划项目(12276708D) 河北省科技计划项目(16273713D) 河北省高等学校科学技术研究项目(ZD2015060) 河北科技大学博士科研基金(1181206)
【分类号】：X786

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