沸石吸附焦化废水中氨氮的研究

利用沸石对氨氮的选择性吸附去除焦化废水中的氨氮,对不同粒度沸石、不同沸石投加量去除模拟废水和焦化废水进行了研究,结果表明,沸石对焦化废水中的氨氮有很强的选择吸附性;焦化废水中其它离子会降低沸石吸附氨氮的能力;粒度越细,沸石对焦化废水氨氮的去除速度越快;沸石吸附焦化废水等温线可用朗谬尔公式和费兰德利希公式来描述.

STUDY OF AMMONIA NITROGEN REMOVAL FROM THE COKE WASTEWATER BY ZEOLITE ADSORPTION

Using the function of selective ion exchange of the zeolite to remove partly the ammonia-nitrogen in different size and different amount zeolite for artificial solution and coke wastewater.The solution as follows:Zeolite has great selective exchange ability to removal ammonia-nitrogen in the coke wastewater.The zeolite capacity of ion exchange to the sewage is slightly lower because of the influence of other ions in coke wastewater.The more small of the zeolite the more quick of adsorption ammonia-nitrogen.The isotherm of zeolite adsorb coke wastewater can be describe with Langmuir function or Flandely function.