摘要
以NaCl为改性剂,采用微波辐射方法对天然沸石进行改性,研究NaCl浓度和辐射条件对改性沸石性能的影响,同时为探讨改性沸石对NH4+的吸附规律,进行了等温吸附试验。研究结果表明:最佳改性条件是微波强度80%、辐射时间10 min、NaCl浓度6%;试验沸石对氨氮具有较高的去除率,对NH4+的吸附等温线符合Lang-muir公式,且对氨氮吸附量的极限值为10.080 6mg/g。
Natural zeolite was modified using NaCl of the concentration of NaCl and irradiation condi as modified sourc tions on modified e by mi zeolite crowa were ve irradiation. The effect studied. The kinetics of NH＋ adsorption by the modified zeolite was investigated. The results show that the optimum modified condition is that microwave power is 80%, and the concentration of NaCl and time are 6% and 10 min respectively. The modified zeolite can absorb ammonia nitrogen effectively. The process of ammonium adsorption by the natural zeolite is in accordance with Langmuir adsorption isotherm. The maximum of NH^＋-N adsorption by the zeolite is 10. 0806mg/g.
出处
《安全与环境工程》
CAS
2008年第3期65-68,共4页
Safety and Environmental Engineering
关键词
微波辐射
改性沸石
氨氮
吸附作用
microwave radiation
modified zeolite
ammonia nitrogen
absorbing effect
