Effect of urea concentration on microbial Ca precipitation
[ X ]
Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevıer Science Inc
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
High calcium concentrations are problematic, because they lead to clogging of pipelines, boilers and heat exchangers through scaling, or malfunctioning of aerobic and anaerobic reactors. Urea hydrolysis provides simultaneously a pH and CO2 increase, both of which are responsible of CaCO3 production. This study was carried out to determine urea concentrations between 5 and 20 mM on ureolytic mixed culture treating synthetic wastewater. The optimum urea concentration was found as 15 mM for effective calcium removal. This work showed the feasibility of urea-based microbial carbonate precipitation as an alternative Ca2+ removal technology. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Description
Keywords
Urea, Calcification, Precipitation, Calcium, Wastewater
Journal or Series
Journal of Industrial and Engineering Chemistry
WoS Q Value
N/A
Scopus Q Value
Q1
Volume
18
Issue
6
