文档介绍：Evaluation of PAC effect in integrated PAC/UF
system for surface water treatment
Jing-yi Hu, Ran Shang, Hui-ping Deng
Key Laboratory of Yangtze River Aquatic Environment of Ministry of Education, Tongji University,
Shanghai, China
Abstract—The effect of powdered activated carbon (PAC) on the efficiency. In addition, AMW and zeta potential distribution
hybrid PAC/UF (PAC applied bination with the analysis were performed to provide more authentic evidences.
ultrafiltration membrane) system was investigated in this paper.
Compared to UF system, in which no PAC was added, the II. METERIAL AND METHODS
membrane flux was improved from % to % in terms
of J/J0 value for 200 minutes’ filtration. In PAC/UF process, it is A. Raw water, experimental device, PAC and membrane
the fraction which cannot be adsorbed by PAC takes greater
Raw water was obtained from San Haowu River in Tongji
responsibility for membrane fouling, this fraction possesses the
potential to cause more irreversible fouling, regardless of its low University, it exhibits the typical surface water quality with
organic content. Analysis by technological apparatus revealed CODMn about ~, TOC ~, and
-1
that the apparent molecular weight (AMW) of this fraction is less UV254 ~ , while the water temperature ranged
than 500Da or more th