Paper Title:
Biological Contamination Control of Activated Carbon Filter
  Abstract

Activated carbon filter is often used as the pretreatment process of nanofiltration or reverse osmosis membrane system, especially when the content of organics and free chlorine in influent water is high. However, a lot of microorganisms often rapidly reproduce in the activated carbon filter after continuous operation, resulting in a large number of bacteria in the effluent. So when the activated carbon filter was used as pretreatment of membrane systems, membrane fouling caused by biological contamination often occurred. The objective of this paper was to discuss how to effectively control the activated carbon biological contamination. Three different control methods—water backwashing, hot alkali treatment and ultrasound treatment were compared. Results showed that ultrasound treatment was the most effective. A relatively high removal efficiency of biomass (above 90%) was obtained when 40 kHz ultrasound was applied at 90 W for 20 min. Bacterial count in the effluent can be decreased from 3.90×104CFU•mL-1 to 8.5×103CFU•mL-1. After 3 days of continuous operation, bacteria count increased from 8.5×103CFU•mL-1 to 4.06×104CFU•mL-1. After ultrasound treatment, the removal efficiency of CODCr increased from -386.3% to 73.8%.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
1123-1127
DOI
10.4028/www.scientific.net/AMR.183-185.1123
Citation
P. C. Jian, Z. H. Zhang, Y. F. Zhang, Q. Zhang, "Biological Contamination Control of Activated Carbon Filter", Advanced Materials Research, Vols. 183-185, pp. 1123-1127, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Mei Li, Yan Yue Lu, Lei Zhong, Shuang Fei Wang
Materials and Its Applications
Abstract:The catalyst was prepared by using activated carbon as the carrier and loading with iron oxide as the active component, the main factors...
329
Authors: Yu Ke Yang, Hua Zhang, Shao Gang Jin
Chapter 12: Materials and its Applications
Abstract:The major indoor air pollution-formaldehyde has been a serious threat to our lives to our lives, and accordingly the formaldehyde degradation...
1743
Authors: Quan Li Feng, Xue Qian Wang, Yu Jia, Ping Ning
Chapter 5: Environmental Restoration Engineering, Treatment and Removal Technologies and Processes
Abstract:This paper makes the amoxicillin production wastewater as the research target and uses the microwave-activated carbon to treat this kind of...
1348