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Emerging Technologies March 2013 Water Quality prepared 2008 Technology Summary Photo-electro Chemical Oxygen Demand (PeCODTM) Objective: State of Development: Determine Chemical Oxygen Demand (COD) of Emerging. wastewater without extensive laboratory process. Description: Photo-electro Chemical Oxygen Demand (PeCODTM) technology can measure photo-current charge originating from the oxidization of soluble organic species contained in a sample. The PeCODTM technology is able to photo-electrochemically generate an electrical signal that directly correlates, via mass balance, with the soluble oxidizable organic species contained in wastewater samples. The core of the technology is the ability of the UV-activated nano-particulate photocatalyst semi-conductive electrode to create a high-oxidation potential that ensures complete oxidation of all soluble oxidizable organic species. This technology has the ability to capture and measure the resultant photo-current. The PeCODTM online analyzer has been used to monitor soluble COD in municipal wastewater treatment plants. Real-time soluble COD event-monitoring enables efficient secondary treatment and reduces operational and discharge costs in regional plants vulnerable to COD surges from industrial sources. Comparison to Established Technologies: The photoelectric COD sensor has short analysis time, is simple to use, has low impact to the environment, and has a long sensor life. It provides real-time results in as low as 30 seconds to overcome the problems of time delay encountered by chemical oxidation methods. High sensitivity and wide linear range is obtained by direct signal acquisition. Measures soluble COD only. Available Cost Information: Approximate Capital Cost: Not available. Approximate O&M Costs: Not available. Vendor Name(s): Aqua Diagnostic Pty Ltd. Level 1, 159 Dorcas Street South Melbourne, Victoria 3205 Australia Telephone: 61 3 8606 3424 Fax: 61 3 9686 9866 Email: info@aquadiagnostic.com Web site: http://www.aquadiagnostic.com East China Normal University Litong Jin Department of Chemistry Shanghai 200062 People’s Republic of China. Key Words for Internet Search: Installation(s): There are no installations. Photo-electro Chemical Oxygen Demand, PeCODTM, Aqua Diagnostic Data Sources: Aqua Diagnostic, “PeCODTM COD Analyzer Delivers Rapid, Reliable and Accurate On-Line COD Monitoring, Technology.” Journal Abstract, “Ti/TiO2 Electrode Preparation Using Laser Anneal and its’ Application to Determination of Chemical Oxygen Demand,” Electroanalysis, Volume 18, Issue 10, pp. 1,014–1,018. 5-16 Wastewater Treatment and In-Plant Wet Weather ManagementPDF Image | Emerging Tech for Wastewater Treatment
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