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Title: Investigation on the long-term storage and fate of arsenic obtained as a treatment residual: A case study
Authors: Ghosh D.
Sarkar, Sudipta
Sengupta A.K.
Gupta A.
Published in: Journal of Hazardous Materials
Abstract: In several places in India, activated alumina is used for effective removal of arsenic from contaminated ground water used for drinking purposes. Once exhausted, activated alumina is regenerated and reused for number of cycles. Regeneration of activated alumina generates treatment residuals containing arsenic, disposal of which needs care so as to avoid further pollution of the neighbouring environment. In the present study, a suitable stabilization and disposal method for the treatment residuals inside a well aerated coarse sand filter bed has been developed. Standard leaching tests carried out with the stabilized treatment residual indicated that the leaching of arsenic from the stabilized treatment residual was minimum, and was within the regulatory limit. Water quality data of all the wells located within 100. m from the sand filter were monitored for nearly four years and no adverse impact of disposal of arsenic-laden treatment residuals in the sand filter was observed. ¬© 2014 Elsevier B.V.
Citation: Journal of Hazardous Materials(2014), 271(): 302-310
Issue Date: 2014
Publisher: Elsevier
Keywords: Activated alumina
Treatment residual
ISSN: 3043894
Author Scopus IDs: 57205637333
Author Affiliations: Ghosh, D., Civil Engineering Department, Bengal Engineering and Science University, Shibpur, Howrah 711103, India
Sarkar, S., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
Sengupta, A.K., Department of Ci
Funding Details: The authors thankfully acknowledge Water for People , Denver, USA for extending co-operation and support with their financial assistance made towards the project. The authors also like to acknowledge the anonymous reviewer whose comments helped to improve
Corresponding Author: Gupta, A.; Civil Engineering Department, Bengal Engineering and Science University, Shibpur, Howrah, 711103, India; email:
Appears in Collections:Journal Publications [CE]

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