Low cost processes for the removal of phosphates in water and wastewater

George M. Ayoub and Lucy Semerjian

International Journal of Environmental Technology and Management, 2006, vol. 6, issue 5, 448-465

Abstract: This paper presents a synopsis of various low-cost techniques employed for the removal of phosphates from water and treated wastewater. Techniques employed include seawater flocculation and coagulation/flocculation using bittern, adsorption on fluidised raw dolomite bed, and filtration through iron and aluminium coated filter media. Seawater flocculation at a seawater concentration of 10% exhibited highly efficient (>90%) removal of Total Phosphorus (TP) from alkaline oxidation pond effluents. For experiments employing fluidised raw dolomite bed, varying degrees of phosphate adsorption capacities were observed for the different test influents used. Finally, laboratory experiments conducted to determine the efficacy of iron and aluminium coated media in removing low concentrations of phosphates indicated very effective phosphate removals (>90%) when applied to Distilled Water (DW) and synthetic groundwater, and less success when applied to Tap Water (TW) (<80%) and treated wastewater effluents (<70%).

Keywords: low cost treatment; phosphate removal; bittern; coated media; wastewater treatment; water treatment; seawater flocculation; adsorption; filtration; coagulation; iron; aluminium; raw dolomite. (search for similar items in EconPapers)
Date: 2006
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.inderscience.com/link.php?id=10477 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ids:ijetma:v:6:y:2006:i:5:p:448-465

Access Statistics for this article

More articles in International Journal of Environmental Technology and Management from Inderscience Enterprises Ltd
Bibliographic data for series maintained by Sarah Parker ().