Pilot plant study on ozonation and biological activated carbon process for drinking water treatment

作     者：KONG Ling-yu ZHANG Xiao-jian WANG Zhan-sheng 

作者机构：Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2006年第18卷第2期

页      面：232-235页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

主　　题：ozonation biological activated carbon CODMn UV254 TOC AOC BDOC biostability 

摘      要：A study on advanced drinking water treatment was conducted in a pilot scale plant taking water from conventional treatment process. Ozonation-biological activated carbon process （O3-BAC） and granular activated carbon process （GAC） were evaluated based on the following parameters： CODMn, UV254, total organic carbon （TOC）, assimilable organic carbon （AOC） and biodegradable dissolved organic carbon （BDOC）. In this test, the average removal rates of CODMn, 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 μg Acetate-C/L in AOC-P17, 45.6-130.6 μg Acetate-C/L in AOC-NOX and 0.1-0.5 mg/L in BDOC with ozone doses of 2 8 mg/L. The optimum ozone dose for maximum AOC formation was 3 mgO3/L. BAC filtration was effective process to improve biostability.