The Office of Waterworks Seoul Metropolitan Government Starting with the Yeongdeungpo Purification Plant in 2010, Seoul Metropolitan Government will augment the current average purification treatment method with the new ozone and granular activated carbon ( or charcoal ) system and expand this new advanced system to six water purification centers by 2015.
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A variety of treatment techniques are available for aboveground treatment ( EPA, 2006 ) and include thermal destruction ( e . g ., direct flame thermal oxidation, catalytic oxidizers ), adsorption ( e . g ., granular activated carbon, zeolites, polymers ), biofiltration, non-thermal plasma destruction, photolytic / photocatalytic destruction, membrane separation, gas absorption, and vapor condensation.
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The remedy for the groundwater plume and private wells includes plume monitoring and installation and maintenance of granular activated carbon ( GAC ) treatment units for private wells that exceed 5 micrograms per liter ( ug / l or " parts per billion " ) TCE . Installation of GAC units has been completed at approximately 125 existing wells.
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In 1989, as a result of the TCE contamination, the California Regional Water Quality Control Board ( CRWQCB ), Santa Ana Region, and the Department of Toxic Substance Control ( DTSC ) provided funding for the installation of a Liquid Phase Granular Activated Carbon ( GAC ) groundwater treatment system to treat and clean the water from the TCE impacted wells.
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These researchers looked at the different steps within the water treatment facility, including sand filtration, followed by ozonation, and finally granular activated carbon filtration, also known as GAC . From this finding, the researchers concluded that this bacteria was able to bypass the ozonation step of the water treatment, which means it passed through this step inside an undetected " Acanthamoeba " species.
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The company also provides granular activated carbon and activated carbon cloth for the production of respirators and " personal protection apparel, " and powdered activated carbon for energy storage products such as batteries and what it calls " ultra capacitors . " Various forms of carbon are used for residential water filtration, pond and aquarium cleaning, and removal of impurities during the manufacturing process of vitamins.
