supercritical water oxidation Articles
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Treatment of whey wastewater by supercritical water oxidation
Whey wastewater is a by-product of cheese industry, which causes environmental pollution problems due to its containment of heavy organic pollutants. Conventional methods such as biological treatment and physico-chemical treatment are insufficient or ineffective. In this paper, the treatment of cheese whey wastewater has been carried out by supercritical water oxidation, using hydrogen peroxide ...
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Supercritical water oxidation of sewage sludge – state of the art
Supercritical water oxidation (SCWO) is an innovative and effective destruction method for organic wastewater and sludge. Several tests of the destruction of sewage sludge by SCWO have been done at two state of the art pilot plants. These units have capacities of 250 kg/h and 1100 kg/h, respectively. The test results show that the technology easily destroys the organic material in the sludge and ...
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Project Waste 2 Go - Upgrading Municipal Waste - Case Study
Waste2Go is a research and technological development (RTD) project, co-funded under the European Union's Seventh Framework Programme (FP7), the "Environment" Theme. The objective is to transform the biogenic fraction of Municipal Solid Waste (over 55%) into chemicals with an economic value greater than if it was used as an energy source. The project hopes to reduce pressure on primary raw ...
By FeyeCon
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Catalysis of CuSO4 for total organic carbon detection based on supercritical water oxidation
The catalytic effects of CuSO4 in total organic carbon (TOC) detecting processes based on supercritical water oxidation have been investigated. Using benzoic acid as a model pollutant, the presence of a CuSO4 catalyst can significantly decrease the reaction temperature and H2O2 multiple during the TOC detection processes. A better TOC conversion efficiency was obtained at a much lower ...
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Treatment of sewage sludge using super critical water oxidation-an up date
Supercritical water oxidation (SCWO) is an innovative, economic and incredibly effective destruction method for organic wastewater and sludge and is a realistic alternative to conventional methods. From 1998 to 2007 extensive evaluations of the destruction of sewage sludge by SCWO were performed by Chematur Engineering AB on two state of the art pilot plants. These units had capacities of 250 ...
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Phosphorus recovery from sewage sludge using the Aquacritox supercritical water oxidation process
Abstract Every person produces approximately 1.2kg/annum of phosphorous. This is typically conveyed to a wastewater treatment plant. In the United Kingdom, the annual phosphorus load from human sources which is present in wastewater is therefore approximately 72,000 tonnes. This would have a value in the region of US$168M per annum based on current market prices. This paper examines how the ...
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Recovery of Precious Metal Catalysts - A New Process Using Supercritical Water Oxidation
Up to now, the recovery of precious metals used as catalysts in chemical processes has involved the use of incineration. Now, however, a British-Swedish joint venture has developed a process which uses supercritical water oxidation instead, which provides many economic and environmental advantages. Precious metals are used extensively in catalysts in a wide range of industrial chemical ...
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Trade sustainability impact assessment on the environmental goods agreement - Case Study
EXECUTIVE SUMMARY On 24 January 2014 at the World Economic Forum in Davos, the EU, together with 13 other WTO members pledged to launch negotiations to liberalise global trade in environmental goods (EGs). The negotiations are employing the Asia-Pacific Economic Cooperation (APEC) list of environmental goods as a starting point with the intent of expanding it to liberalise a "broad range of ...
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Effects of Microplastics and PFAS on Human Health
A recent study published in the Journal of Hazardous Materials found that when scientists analyzed the health of volunteer subjects, 80% had microplastics present in their blood cells. Microplastics are plastic particles smaller than 5mm, or about 1/5 of an inch. These tiny particles may consist of manufacturing materials, scraps of water bottles, microfibers from clothing, food wrappers, ...
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