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A study on advanced drinking water treatment was conducted in a pilot scale plant taking water from conventional treatment process. Ozonation-biologic al activated carbon process(O3-BAC) and granular activated carbon process(GAC) w ere evaluated based on the following parameters: CODMn, UV254, total organic car bon(TOC), assimilable organic carbon(AOC) and biodegradable dissolved organic ca rbon(BDOC). In this test, the average removal rates of CODMnb, UV254 and TOC in O3-BAC were 18.2%, 9.0% and 10.2% higher on(AOC) than in GAC, respectively. Ozon ation increased 19.3—57.6 ?滋g Acetate-C/L in AOC-P17, 45.6—130.6 ?滋g Acetate -C/L in AOC-NOX and 0.1—0.5 mg/L in BDOC with ozone doses of 2—8 mg/L. The opt imum ozone dose for maximum AOC formation was 3 mgO3/L. BAC filtration was effec tive process to improve biostability.
A study on advanced drinking water treatment was conducted in a pilot scale plant taking water from conventional treatment process. Ozonation-biologic al activated carbon process (O3-BAC) and granular activated carbon process (GAC) CODMn, UV254, total organic car bon (TOC), assimilable organic carbon (AOC) and biodegradable dissolved organic ca rbon (BDOC). In this test, the average removal rates of CODMnb, UV254 and TOC in O3- BAC were 18.2% 9.0% and 10.2% higher on (AOC) than in GAC, respectively. Ozonation increased 19.3-57.6? Acetate-C / L in AOC-P17, 45.6-130.6? G Acetate -C / L in AOC-NOX and 0.1-0.5 mg / L in BDOC with ozone doses of 2-8 mg / L. The opt imum ozone dose for maximum AOC formation was 3 mgO3 / L. BAC filtration was effec tive process to improve biostability.