摘要
沸石作为一种性能优良的填料常被用于人工湿地。通过对人工湿地常用填料——沸石进行氨氮吸附及解吸试验得出,沸石的吸附性能优于石灰石等常用填料的吸附性能;在不同标准铵浓度溶液中,沸石对氨氮的最大吸附浓度可达到1.58 mg/g,随着氨氮浓度增加,吸附量也有相应增加;在吸附饱和以后通过强制干燥或自然风干,均能得到较好的恢复,解吸率分别高达80%和73%。
The zeolites were used to artificial wetlands. As a super filler, through the usual artificial wetlands filler test in adsorption and desorption, it was found that the adsorption of zeolite to ammonia nitrogen was great superior to gravel. In different water ammonia nitrogen concentration, zeolite adsorption capacity ean reach to 1.58 mgNH4^＋ -N/g. With the increase of ammonia nitrogen concentration, the adsorption quantity increased, and under force or natural conditions, the desorption rate can reach to more than 70%.
出处
《广州化工》
CAS
2016年第15期104-106,共3页
GuangZhou Chemical Industry
关键词
人工湿地
沸石
填料
吸附
artificial wetland
zeolite
the filler
adsorption
