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- Title
The removal of Fe<sup>2+</sup> in acid coal mine water.
- Authors
FAN Zewen; HE Liping; XU Ximeng; LI Zongquan; LI Canting; HLANG Mei
- Abstract
In order to increase the removal efficiency of Fe2+ in acid coal mine water, the coagulant sedimentation without aeration oxidation was carried out to treat acid coal mine water. The effects of pH value and coagulant dosage on the Fe2+ removal efficiency is investigated. The results show that, the Fe2+ removal rate reaches 99.88% when the pH value is 8.5 which is adjusted by 5% lime emulsion. So 8.5 is the optimum pH value. First add 1 mL 0.1% PAM to the acid coal mine water, then adjust the pH value to 8.5 by 5% lime emulsion. At last, add 30 mL 0.1% PAC. The removal efficiency of Fe2+ can reach 100% and the suspended solids can be removed easily. The appropriate pH value and flocculants dosage can remove Fe2+ in acid coal mine water efficiently.
- Subjects
COAL mining; IRON ions; WATER analysis; COAGULANTS; SEDIMENTATION &; deposition; HYDROGEN-ion concentration
- Publication
Clean Coal Technology, 2014, Vol 20, Issue 4, p103
- ISSN
1006-6772
- Publication type
Article
- DOI
10.13226/j.issn.1006-6772.2014.04.029