欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (13): 349-353.

• 目次 • 上一篇    下一篇

粘土矿物对污水中可溶态N、P的吸附研究

蒋先军(发票用快递,对方出) 马永玉 蒋先军   

  • 收稿日期:2010-01-11 修回日期:2010-02-28 出版日期:2010-07-05 发布日期:2010-07-05

Research about clay minerals on removal soluble Nitrogen and Phosphorus in polluted water

  • Received:2010-01-11 Revised:2010-02-28 Online:2010-07-05 Published:2010-07-05

PDF (PC)

1201

摘要：

在室内模拟条件下，研究了活性炭、高岭土、人造沸石、蛭石、珍珠岩、蒙脱石共六种粘土矿物及其用量对污水中可溶态N、P的吸附效果。它们对铵态氮的沉降率分别是：1%，4%，78%，11%，2%，26%；对硝态氮的沉降率分别是：32%，6%，4.5%，3.6%，0.8%，56%；对可溶态P的沉降率分别是：35%，-22%，9%，11.7%，3.6%，16.8%。结果表明，人造沸石是沉降铵态氮的最佳粘土矿物，而活性炭既是硝态氮的最佳粘土矿物，同时也是可溶态P的最佳粘土矿物。综合去除率和经济效益，吸附铵态氮，最佳的沸石浓度1.5g/L，单位吸附量11.8mg/g，吸附率59%；吸附硝态氮，最佳的活性炭浓度为12g/L，单位吸附量0.108mg/g，吸附率51%；吸附磷酸根，最佳的活性炭浓度为2.0g/L，单位吸附量0.26mg/g，吸附率26%。

关键词: 烤烟, 烤烟, 种质资源, 抗病性, 性状

Abstract:

Through a series of simulation tests on soluble Nitrogen and Phosphorus in polluted water, the removing study according to the different sorts and amounts of six clay minerals including activated carbon,,kaoline, synthetic zeolite, vermiculite, perlite and montmorillonite was carried out. Correspondingly ,The percent of removing the ammonium nitrogen is 1%，4%，78%，11%，2%，26%；The percent of removing the nitrate nitrogen is 32%，6%，4.5%，3.6%，0.8%，56%；; The percent of removing the soluble phosphorus is 35%，-22%，9%，11.7%，3.6%，16.8%. The results showed that the synthetic zeolite is the best flocculating agent for ammonium nitrogen, Activated Carbon is the best flocculating agent for nitrate nitrogen and soluble phosphorus. Integrated removal efficiency and economic benefits, removing the ammonium nitrogen, the best concentration of the synthetic zeolite is 1.5g /l, the unit amount of adsorption is 11.8mg/g，the adsorption rate is 59%.For removing the nitrate nitrogen , the best concentration of the activated carbon is 12g /l , the best concentration of the activated carbon is 12g /l, the unit amount of adsorption is 0.108mg/g，the adsorption rate is 51%.For removing the soluble phosphorus, the best concentration of the activated carbon is 12g /l and 2.0 g / l, the unit amount of adsorption is 0.26mg/g，the adsorption rate is 26%.