Prediction of the life expectancy of organic covers

Komnitsas, K; Peppas, A; Halikia, I

dc.contributor.author	Komnitsas, K	en
dc.contributor.author	Peppas, A	en
dc.contributor.author	Halikia, I	en
dc.date.accessioned	2014-03-01T01:15:48Z
dc.date.available	2014-03-01T01:15:48Z
dc.date.issued	2000	en
dc.identifier.issn	0892-6875	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13747
dc.subject	acid rock drainage	en
dc.subject	tailings	en
dc.subject	reclamation	en
dc.subject	environmental	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Mineralogy	en
dc.subject.classification	Mining & Mineral Processing	en
dc.subject.other	MUNICIPAL	en
dc.title	Prediction of the life expectancy of organic covers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0892-6875(00)00142-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0892-6875(00)00142-4	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	The present paper aims to predict the life expectancy of organic covers, under various climatic conditions, when established over reactive sulphide wastes. Prediction is enabled with the use of a computer program that analyzes and interprets experimental data derived from laboratory tests, regarding the application of an organic cover over reactive unoxidized arsenopyrite concentrate. The life expectancy of organic covers can be predicted by establishing their potential to prevent influx of air into the underlying reactive sulphide mass. Influx of air can be calculated by recording O-2 concentration in pore air, which is directly related to the moisture content (m) within rite organic material, The moisture content, in each area under study, depends mainly on rainfall rate (w) and on organic material width (h). By correlating these two parameters, provided that the initial moisture content is known, the moisture content within the organic mass, as well as its monthly variations, can be accurately predicted over long periods of time. The methodology used for the prediction of the life expectancy was based on the study of the relationships, which are considered as critical for the effective operation of an organic cover, namely (a) monthly moisture content change vs, monthly rainfall rate and width of the organic cover and (b) O-2 concentration vs. moisture content. Finally, two case studies examining the application of organic covers over reactive sulphide materials are presented and discussed. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	MINERALS ENGINEERING	en
dc.identifier.doi	10.1016/S0892-6875(00)00142-4	en
dc.identifier.isi	ISI:000165550200014	en
dc.identifier.volume	13	en
dc.identifier.issue	14-15	en
dc.identifier.spage	1589	en
dc.identifier.epage	1601	en