Adsorption of zinc ion on leonardite prepared from coal waste
Naturally occurring leonardite, obtained from Mae Moh mine lignite, has been tested as a potential sorbent for Zn 2+. The factors that affect to the sorption, such as pH, contact time and the adsorption isotherm were also investigated. The high performance of Zn 2+ removal was demonstrated at pH val...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84861864027&partnerID=40&md5=10bf1dd420397b7df37fdd9d5c66421f http://cmuir.cmu.ac.th/handle/6653943832/6883 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | Naturally occurring leonardite, obtained from Mae Moh mine lignite, has been tested as a potential sorbent for Zn 2+. The factors that affect to the sorption, such as pH, contact time and the adsorption isotherm were also investigated. The high performance of Zn 2+ removal was demonstrated at pH values of 5-6. Batch experiment showed that the equilibrium was reached after 180 min. The sorption data were correlated with the Langmuir and Freundlich adsorption models. The average maximum adsorption capacity was found to be 0.141 mmol g -1. Moreover, the equilibrium parameter, KR indicated the favor ability of leonardite for adsorbed Zn 2+. |
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