Physicochemical characteristics of a new organic soil conditioner from composted sludges from a pulp deinking process

Bouranis, DL; Vlyssides, AG; Drossopoulos, JB; Economides, DG; Mourafeti, B; Drissis, DG

dc.contributor.author	Bouranis, DL	en
dc.contributor.author	Vlyssides, AG	en
dc.contributor.author	Drossopoulos, JB	en
dc.contributor.author	Economides, DG	en
dc.contributor.author	Mourafeti, B	en
dc.contributor.author	Drissis, DG	en
dc.date.accessioned	2014-03-01T01:13:15Z
dc.date.available	2014-03-01T01:13:15Z
dc.date.issued	1997	en
dc.identifier.issn	0010-3624	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12396
dc.subject	Organic Soil	en
dc.subject.classification	Agronomy	en
dc.subject.classification	Plant Sciences	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.classification	Soil Science	en
dc.subject.other	composting	en
dc.subject.other	physicochemical concepts	en
dc.subject.other	sludge conditioning	en
dc.subject.other	composted sludge	en
dc.subject.other	physicochemical characteristics	en
dc.subject.other	soil conditioner	en
dc.title	Physicochemical characteristics of a new organic soil conditioner from composted sludges from a pulp deinking process	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00103629709369896	en
heal.identifier.secondary	http://dx.doi.org/10.1080/00103629709369896	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	A new organic soil-conditioner from composted sludge produced from a newspaper deinking process was examined compared with raw uncomposted sludge, its physical and chemical characteristics tested in order to study its effectiveness. The water-holding capacity of the conditioner was almost 7.6 and 1.8 times higher than that of the pure soil and the raw sludge, respectively, and remained stable at temperatures between 9 degrees C and 27 degrees C. The composted sludge had a 53% organic matter content and 35% in humic substances which was 3.5 and 2.0 times lighter than the pure soil and the raw sludge. Incorporation of this material into the soil in concentrations of up to 25% resulted in a 1.7 times increase of the water-holding capacity of the mixture, whereas 90% of the water-holding capacity was achieved in less than 10 min. The apparent density of the mixture was decreased and was not affected by the residence time of the samples into the water. The pH of the mixture's eluates was shifted to higher values (pH=7.0). The specific conductivity of the eluates was increased. Due to this parameter, a limit was observed in the use of this conditioner. The amount of ammonium-nitrogen (NH -N), phosphorus (P), calcium (Ca), magnesium (Mg), zinc (Zn), copper (Cu)(4), and manganese (Mn) in the eluates increased, while the amount of potassium (K) and iron (Fe) decreased in comparison to what would be expected from the separate contributions of soil and conditioner. Therefore, there exists an interaction between this material and soil that occurs when the conditioner is incorporated into soil.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	Communications in Soil Science and Plant Analysis	en
dc.identifier.doi	10.1080/00103629709369896	en
dc.identifier.isi	ISI:A1997YD52200007	en
dc.identifier.volume	28	en
dc.identifier.issue	17-18	en
dc.identifier.spage	1549	en
dc.identifier.epage	1564	en