Document Detail


Emission, fate and effects of soluble silicates (waterglass) in the aquatic environment.
MedLine Citation:
PMID:  14750728     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Soluble silicates, commercially known as waterglass, are among the largest volume synthetic chemicals in the world. Silicon from waterglass is rapidly transformed to the biologically active orthosilicic acid (referred to as dissolved silicate). This paper aims to assess the impact of waterglass on the aquatic environment in Western Europe. The emission to surface waters from the four most relevant application areas, household detergents, pulp and paper production, water and wastewater treatment, and soil stabilization, is estimated to be ca. 88-121 kton of SiO2 per year. This is a small fraction (<2%) of the estimated total amount of dissolved silicate transported by rivers to the oceans. Locally, increases in dissolved silicate concentration will decrease the ratios of N:Si and P:Si, which could influence phytoplankton species composition and favor the growth of diatoms over other groups of algae. Significant adverse effects in aquatic ecosystems are not expected.
Authors:
Henno P van Dokkum; Ian H J Hulskotte; Kees J M Kramer; Joël Wilmot
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  38     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-01-30     Completed Date:  2004-04-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  515-21     Citation Subset:  IM    
Affiliation:
Department for Ecological Risk Studies, TNO Environment, Energy and Process Innovation, P.O. Box 57, 1780 AB, Den Helder, The Netherlands. h.vandokkum@mep.tno.nl
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MeSH Terms
Descriptor/Qualifier:
Algae / growth & development
Detergents / analysis,  chemistry
Diatoms / growth & development
Ecosystem
Europe
Paper
Population Dynamics
Silicates / analysis*,  chemistry*
Solubility
Waste Disposal, Fluid
Water Pollutants / analysis*
Chemical
Reg. No./Substance:
0/Detergents; 0/Silicates; 0/Water Pollutants

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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