Study on zeolite for treating fluoride-containing wastewater in the process of ore decomposition in tantalum and niobium plant
Received date: 2005-02-20
Online published: 2010-10-01
A treatment study of some wastewater from the ore decomposition process in a tantalum and niobium plant with F-concentration being 1 836 mg/L is presented. The treatment was conducted by using zeolite.We analyzed the influence of the dosages of zeolite, the content of fluoride in wastewater and the time of adsorbing on the removal efficiency of fluoride about non-modified zeolite. The treatment results show that the removal efficiency of fluoride is low. Zeolite modified by AlCl3 can increase the removal efficiency of fluoride up to beyond 95%. F-concentration in wastewater drops to under 10 mg/L, which meets the requirement of the first grade National Standard for wastewater discharge.
Li Shuifang, Li Meng . Study on zeolite for treating fluoride-containing wastewater in the process of ore decomposition in tantalum and niobium plant[J]. Industrial Water Treatment, 2005 , 25(7) : 18 -19 . DOI: 10.11894/1005-829x.2005.25(7).18
[1] 黄怡, 高乃云.改性石英砂及沸石滤料除氟性质比较研究[J].环境卫生工程，2003, 9(3):128-131
[2] 罗道成, 等.改性沸石对电镀废水中Pb2+、Zn: 2+、Ni2+的吸附[J].材料保护, 2002,7(7):41-43
[3] 王萍, 等. 氯化钠改性沸石吸附水中苯酚的研究[J].中国给水排水, 2000, (4):11-13
/
| 〈 |
|
〉 |
津公网安备 12010602120337号