Particle size effects on uptake of heavy metals from sewage sludge compost using natural zeolite clinoptilolite

Antonis A. Zorpas, Vassilis Inglezakis, Maria Loizidou, Helen Grigoropoulou

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Land application of sewage sludge may be the least energy consuming and the most cost-effective means of sludge disposal or utilization. However, the major technical problem with land application of sludge concerns the high concentrations of heavy metals. These metals may be leached and enter the ecosystem, the food chain, and eventually the human population. This paper deals with the removal of heavy metals from sewage sludge compost using natural zeolite clinoptilolite, in respect to the particle size. The final results indicate that heavy metals can be sufficiently removed by using 25% w/w of zeolite with particle size of 3.3-4.0 mm. Pore clogging and structural damage in smaller particle sizes is probably the reason for lower uptake of metals by the latter.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalJournal of Colloid and Interface Science
Volume250
Issue number1
DOIs
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Zeolites
sewage
sludge
Sewage sludge
heavy metals
Heavy Metals
Heavy metals
Particle size
Metals
Sludge disposal
food chain
plugging
Ecosystems
disposal
ecosystems
metals
damage
costs
porosity
clinoptilolite

Keywords

  • Clinopltilolite
  • Metal uptake
  • Pore clogging
  • Sludge composting

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Particle size effects on uptake of heavy metals from sewage sludge compost using natural zeolite clinoptilolite. / Zorpas, Antonis A.; Inglezakis, Vassilis; Loizidou, Maria; Grigoropoulou, Helen.

In: Journal of Colloid and Interface Science, Vol. 250, No. 1, 2002, p. 1-4.

Research output: Contribution to journalArticle

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