Characterization and toxicological evaluation of leachate from closed sanitary landfill

Landfilling is a major option in waste management hierarchy in developing nations. It generates leachate, which has the potential of polluting watercourses. This study analysed the physico-chemical components of leachate from a closed sanitary landfill in Malaysia, in relation to evaluating the toxi...

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Main Authors:	Emenike, C.U., Fauziah, S.H., Agamuthu, P.
Format:	Article
Published:	2012
Subjects:	QH301 Biology
Online Access:	http://wmr.sagepub.com/content/30/9/888.full.pdf http://wmr.sagepub.com/content/30/9/888.full.pdf

id	um-4962
recordtype	eprints
spelling	um-49622013-03-06T01:33:30Z Characterization and toxicological evaluation of leachate from closed sanitary landfill Emenike, C.U. Fauziah, S.H. Agamuthu, P. QH301 Biology Landfilling is a major option in waste management hierarchy in developing nations. It generates leachate, which has the potential of polluting watercourses. This study analysed the physico-chemical components of leachate from a closed sanitary landfill in Malaysia, in relation to evaluating the toxicological impact on fish species namely Pangasius sutchi S., 1878 and Clarias batrachus L., 1758. The leachate samples were taken from Air Hitam Sanitary Landfill (AHSL) and the static method of acute toxicity testing was experimented on both fish species at different leachate concentrations. Each fish had an average of 1.3 +/- 0.2 g wet weight and length of 5.0 +/- 0.1 cm. Histology of the fishes was examined by analysing the gills of the response (dead) group, using the Harris haemtoxylin and eosin (H&E) method. Finneys' Probit method was utilized as a statistical tool to evaluate the data from the fish test. The physico-chemical analysis of the leachate recorded pH 8.2 +/- 0.3, biochemical oxygen demand 3500 +/- 125 mg L-1, COD 10 234 +/- 175 mg L-1, ammonical nitrogen of 880 +/- 74 mg L-1, benzene 0.22 +/- 0.1 mg L-1 and toluene 1.2 +/- 0.4 mg L-1. The 50% lethality concentration (LC50) values calculated after 96 h exposure were 3.2% (v/v) and 5.9% (v/v) of raw leachate on P. sutchi and C. batrachus, respectively. The H&E staining showed denaturation of the nucleus and cytoplasm of the gills of the response groups. Leachate from the sanitary landfill was toxic to both fish species. The P. sutchi and C. batrachus may be used as indicator organisms for leachate pollution in water. 2012 Article PeerReviewed http://wmr.sagepub.com/content/30/9/888.full.pdf Emenike, C.U.; Fauziah, S.H.; Agamuthu, P. (2012) Characterization and toxicological evaluation of leachate from closed sanitary landfill. Waste Management & Research <http://eprints.um.edu.my/view/publication/Waste_Management_=26_Research.html>, 30 (9). pp. 888-897. ISSN 0734-242X http://eprints.um.edu.my/4962/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	QH301 Biology
spellingShingle	QH301 Biology Emenike, C.U. Fauziah, S.H. Agamuthu, P. Characterization and toxicological evaluation of leachate from closed sanitary landfill
description	Landfilling is a major option in waste management hierarchy in developing nations. It generates leachate, which has the potential of polluting watercourses. This study analysed the physico-chemical components of leachate from a closed sanitary landfill in Malaysia, in relation to evaluating the toxicological impact on fish species namely Pangasius sutchi S., 1878 and Clarias batrachus L., 1758. The leachate samples were taken from Air Hitam Sanitary Landfill (AHSL) and the static method of acute toxicity testing was experimented on both fish species at different leachate concentrations. Each fish had an average of 1.3 +/- 0.2 g wet weight and length of 5.0 +/- 0.1 cm. Histology of the fishes was examined by analysing the gills of the response (dead) group, using the Harris haemtoxylin and eosin (H&E) method. Finneys' Probit method was utilized as a statistical tool to evaluate the data from the fish test. The physico-chemical analysis of the leachate recorded pH 8.2 +/- 0.3, biochemical oxygen demand 3500 +/- 125 mg L-1, COD 10 234 +/- 175 mg L-1, ammonical nitrogen of 880 +/- 74 mg L-1, benzene 0.22 +/- 0.1 mg L-1 and toluene 1.2 +/- 0.4 mg L-1. The 50% lethality concentration (LC50) values calculated after 96 h exposure were 3.2% (v/v) and 5.9% (v/v) of raw leachate on P. sutchi and C. batrachus, respectively. The H&E staining showed denaturation of the nucleus and cytoplasm of the gills of the response groups. Leachate from the sanitary landfill was toxic to both fish species. The P. sutchi and C. batrachus may be used as indicator organisms for leachate pollution in water.
format	Article
author	Emenike, C.U. Fauziah, S.H. Agamuthu, P.
author_facet	Emenike, C.U. Fauziah, S.H. Agamuthu, P.
author_sort	Emenike, C.U.
title	Characterization and toxicological evaluation of leachate from closed sanitary landfill
title_short	Characterization and toxicological evaluation of leachate from closed sanitary landfill
title_full	Characterization and toxicological evaluation of leachate from closed sanitary landfill
title_fullStr	Characterization and toxicological evaluation of leachate from closed sanitary landfill
title_full_unstemmed	Characterization and toxicological evaluation of leachate from closed sanitary landfill
title_sort	characterization and toxicological evaluation of leachate from closed sanitary landfill
publishDate	2012
url	http://wmr.sagepub.com/content/30/9/888.full.pdf http://wmr.sagepub.com/content/30/9/888.full.pdf
first_indexed	2018-09-05T16:48:25Z
last_indexed	2018-09-05T16:48:25Z
_version_	1610833450824105984

Characterization and toxicological evaluation of leachate from closed sanitary landfill

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