Abstract：
:Removal of mercury from aqueous solutions using activated carbon prepared from Ceiba pentandra hulls, Phaseolus aureus hulls and Cicer arietinum waste was investigated. The influence of various parameters such as effect of pH, contact time, initial metal ion concentration and adsorbent dose for the removal of mercury was studied using a batch process. The experiments demonstrated that the adsorption process corresponds to the pseudo-second-order-kinetic models and the equilibrium adsorption data fit the Freundlich isotherm model well. The prepared adsorbents ACCPH, ACPAH and ACCAW had removal capacities of 25.88 mg/g, 23.66 mg/g and 22.88 mg/g, respectively, at an initial Hg(II) concentration of 40 mg/L. The order of Hg(II) removal capacities of these three adsorbents was ACCPH>ACPAH>ACCAW. The adsorption behavior of the activated carbon is explained on the basis of its chemical nature. The feasibility of regeneration of spent activated carbon adsorbents for recovery of Hg(II) and reuse of the adsorbent was determined using HCl solution.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Rao MM,Reddy DH,Venkateswarlu P,Seshaiah Kdoi
10.1016/j.jenvman.2007.12.019subject
Has Abstractpub_date
2009-01-01 00:00:00pages
634-43issue
1eissn
0301-4797issn
1095-8630pii
S0301-4797(08)00003-0journal_volume
90pub_type
杂志文章abstract：:A methodology to evaluate groundwater vulnerability was developed and tested in a case study in the Central Valleys of the state of Oaxaca, Mexico, a region known for intensive agricultural activities and poor water management policies. An analysis was conducted to create and evaluate scenarios reflecting anthropogeni...
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.08.052
更新日期：2018-01-15 00:00:00
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pub_type： 杂志文章
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更新日期：2016-12-01 00:00:00
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journal_title：Journal of environmental management
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doi：10.1016/j.jenvman.2005.09.025
更新日期：2006-10-01 00:00:00
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doi：10.1016/j.jenvman.2013.06.016
更新日期：2013-10-15 00:00:00
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journal_title：Journal of environmental management
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更新日期：2013-09-15 00:00:00
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更新日期：2017-04-15 00:00:00
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journal_title：Journal of environmental management
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更新日期：2005-03-01 00:00:00
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journal_title：Journal of environmental management
pub_type： 杂志文章,收录出版
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journal_title：Journal of environmental management
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更新日期：2012-12-30 00:00:00
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journal_title：Journal of environmental management
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doi：10.1016/j.jenvman.2017.01.060
更新日期：2017-05-15 00:00:00
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journal_title：Journal of environmental management
pub_type： 杂志文章
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更新日期：2019-02-15 00:00:00
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journal_title：Journal of environmental management
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更新日期：2019-11-01 00:00:00
abstract：:Environmental cost-benefit analysis has traditionally assumed that the value of benefits is sensitive to their timing and that outcomes are valued higher, the sooner in time they occur following implementation of a project or policy. Though, this assumption might have important implications especially for the social d...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2016.03.039
更新日期：2016-07-15 00:00:00
