Sawdust and natural zeolite as a bulking agent for improving quality of a composting product from anaerobically stabilized sewage sludge

Zorpas, AA; Loizidou, M

dc.contributor.author	Zorpas, AA	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T01:29:06Z
dc.date.available	2014-03-01T01:29:06Z
dc.date.issued	2008	en
dc.identifier.issn	0960-8524	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19131
dc.subject	Composting	en
dc.subject	Leach ability	en
dc.subject	Partitioning	en
dc.subject	Phytotoxic	en
dc.subject	Zeolite	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Biotechnology & Applied Microbiology	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Composting	en
dc.subject.other	Heavy metals	en
dc.subject.other	Metals	en
dc.subject.other	Sewage	en
dc.subject.other	Sewage sludge	en
dc.subject.other	Silicate minerals	en
dc.subject.other	Acid neutralization capacity	en
dc.subject.other	Applied (CO)	en
dc.subject.other	Bulking agents	en
dc.subject.other	Clinoptilolite	en
dc.subject.other	Concentration (composition)	en
dc.subject.other	Elsevier (CO)	en
dc.subject.other	Final compost	en
dc.subject.other	final products	en
dc.subject.other	germination index	en
dc.subject.other	Heavy metal concentrations	en
dc.subject.other	Humic substances (HS)	en
dc.subject.other	In order	en
dc.subject.other	Metal leachability	en
dc.subject.other	Natural zeolite (NZ)	en
dc.subject.other	p H values	en
dc.subject.other	Mixtures	en
dc.subject.other	organic carbon	en
dc.subject.other	organic matter	en
dc.subject.other	zeolite	en
dc.subject.other	anoxic conditions	en
dc.subject.other	composting	en
dc.subject.other	concentration (composition)	en
dc.subject.other	humic substance	en
dc.subject.other	neutralization	en
dc.subject.other	partitioning	en
dc.subject.other	phytotoxicity	en
dc.subject.other	sewage	en
dc.subject.other	sludge	en
dc.subject.other	stabilization	en
dc.subject.other	zeolite	en
dc.subject.other	article	en
dc.subject.other	composting	en
dc.subject.other	germination	en
dc.subject.other	leaching	en
dc.subject.other	pH	en
dc.subject.other	phytotoxicity	en
dc.subject.other	priority journal	en
dc.subject.other	sawdust	en
dc.subject.other	sludge	en
dc.subject.other	sludge stabilization	en
dc.subject.other	waste water management	en
dc.subject.other	Anaerobiosis	en
dc.subject.other	Bacteria, Anaerobic	en
dc.subject.other	Fertilizers	en
dc.subject.other	Humic Substances	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Metals, Heavy	en
dc.subject.other	Refuse Disposal	en
dc.subject.other	Sewage	en
dc.subject.other	Soil	en
dc.subject.other	Time Factors	en
dc.subject.other	Wood	en
dc.subject.other	Zeolites	en
dc.title	Sawdust and natural zeolite as a bulking agent for improving quality of a composting product from anaerobically stabilized sewage sludge	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.biortech.2008.02.014	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.biortech.2008.02.014	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	This study has dealt with the production of compost from dewatered anaerobically stabilized primary sewage sludge (DASPSS) and sawdust (SWD). SWD is added in order to increase the humic substances in the final product. The DASPSS is mixed with clinoptilolite (Cli), which is used as a bulking agent at 20% w/w, and the mixture is amended with sawdust at MY,), 30%, and 40%) (w/w). The final results have indicated that by increasing the sawdust concentration in the initial mixture, the humic substances in the final product increase too. The natural zeolite that was added in the initial mixture takes up a significant amount of heavy metals. In order to observe the maturity of the final product, the germination index is used in oat cultivation. The results indicate that the substrate appears to be non-phytotoxic after 75 d of maturity. Also, in order to estimate the metal leachability of the filial compost product, the generalized acid neutralization capacity procedure is applied, and it is found that by increasing the pH values, the heavy metal concentrations decrease. (C) 2008 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Bioresource Technology	en
dc.identifier.doi	10.1016/j.biortech.2008.02.014	en
dc.identifier.isi	ISI:000257971900017	en
dc.identifier.volume	99	en
dc.identifier.issue	16	en
dc.identifier.spage	7545	en
dc.identifier.epage	7552	en