S. A. Kumar, G. Lekshmi, Rajesh Banu Jeyakumar, I. Yeom
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Synergistic degradation of hospital wastewater by solar/TiO2/Fe2+/H2O2 process
Combined heterogeneous and homogenous photo-catalytic degradation of hospital wastewater was investigated. Three processes – solar/TiO 2 /H 2 O 2 , solar/Fe 2+ /H 2 O 2 and solar/TiO 2 /Fe 2+ /H 2 O 2 – were evaluated. The solar/TiO 2 /Fe 2+ /H 2 O 2 process displayed increased efficiency due to the synergetic effect of homogeneous and heterogeneous photo-catalytic reaction. The combination increased the photo process efficiency by decreasing the reaction time of the separate operations and decreased the cost of treatment. The optimal conditions enabling over 99% reduction of chemical oxygen demand (COD) were pH 7, 0.5 g/L Fe 2+ , 0.2 g/L TiO 2 and 1.35 g/L H 2 O 2 . The effluent COD and total suspended solids concentrations were 20 and 30 mg/L, respectively, which met the discharge standard requirements.
期刊介绍：
The Water Quality Research Journal publishes peer-reviewed, scholarly articles on the following general subject areas:
Impact of current and emerging contaminants on aquatic ecosystems
Aquatic ecology (ecohydrology and ecohydraulics, invasive species, biodiversity, and aquatic species at risk)
Conservation and protection of aquatic environments
Responsible resource development and water quality (mining, forestry, hydropower, oil and gas)
Drinking water, wastewater and stormwater treatment technologies and strategies
Impacts and solutions of diffuse pollution (urban and agricultural run-off) on water quality
Industrial water quality
Used water: Reuse and resource recovery
Groundwater quality (management, remediation, fracking, legacy contaminants)
Assessment of surface and subsurface water quality
Regulations, economics, strategies and policies related to water quality
Social science issues in relation to water quality
Water quality in remote areas
Water quality in cold climates
The Water Quality Research Journal is a quarterly publication. It is a forum for original research dealing with the aquatic environment, and should report new and significant findings that advance the understanding of the field. Critical review articles are especially encouraged.
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