Effect of Advanced Treatment of Sewage Effluents on Metal Speciation and (bio)Availability

The bioavailability of metals can be strongly influenced by dissolved organic carbon (DOC). Wastewater treatment effluents add considerable quantities of DOC and metals to receiving waters, and as effluent controls become more stringent advanced effluent treatments may be needed. We assessed the eff...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2014-02, Vol.92 (2), p.248-252
Main Authors: Peters, A, Merrington, G, Leverett, D, Ellor, B, Lofts, S, Gravell, A
Format: Article
Language:English
Subjects:
Applied sciences
Aquatic Pollution
Availability
Bioavailability
Carbon
Dissolution
Dissolved organic carbon
Earth and Environmental Science
Ecotoxicology
Effluent treatment
Effluents
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Exact sciences and technology
General purification processes
Metals
Metals - analysis
Pollution
Receiving
Receiving waters
Sewage
Sewage - chemistry
sewage treatment
Soil Science & Conservation
Speciation
Thin films
Toxicity
trace elements
Trace metals
Waste Disposal, Fluid - methods
Waste water
Waste Water - chemistry
Waste Water Technology
Wastewater treatment
Wastewaters
Water Management
Water Pollutants, Chemical - analysis
Water Pollution Control
Water treatment
Water treatment and pollution
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Description
Summary:The bioavailability of metals can be strongly influenced by dissolved organic carbon (DOC). Wastewater treatment effluents add considerable quantities of DOC and metals to receiving waters, and as effluent controls become more stringent advanced effluent treatments may be needed. We assessed the effects of two types of advanced treatment processes on metal availability in wastewater effluents. Trace metal availability was assessed using diffuse gradients in thin films and predicted through speciation modelling. The results show little difference in metal availability post-advanced treatment. EDTA-like compounds are important metal complexants in the effluents.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-013-1143-z