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This article highlights Hanovia and how they have successfully used UV to reduce total organic carbon (boiler feedwater) for Kaeng Khoi 2 Power Plant in Thailand. This is a gas-fired thermal power plant generating capacity of 1468 MW, 7.5% of Thailand's total power consumption. The facility was designed to meet Thai and World Bank environmental regulations and the the electricity being generated is sold to the Electricity Generating Authority of Thailand (EGAT) under a 25 year power purchase agreement. A key component to the success of this project was the elimination of TOC from boiler feedwater which can vary greatly. It was found that UV can break down trace organics which cannot be removed by other processes. The original source of the boiler feeder water for this plant is from a local river, which is stored in a raw water pond before being pumped into the water treatment plant. There are two medium pressure UV chambers used for treatment at this plant which have been very effective in addressing the seasonally varying feed water quality. The two Hanovia UV chambers treat a combined water flow of up to 400m3 per hour. Actual TOC input to the UV chambers is 183ppb and output is 58ppb - a 68% reduction which is well below the required minimum required concentration.
Revision Date: 11/9/2011
Tags: 221112 - Fossil Fuel 化石燃料, Hanovia, Kaeng Khoi 2 Power Plant, Xylem, Turbine, Market, Competitor, Thailand