Next Article in Journal
Response of Agricultural Drought to Meteorological Drought: A Case Study of the Winter Wheat above the Bengbu Sluice in the Huaihe River Basin, China
Next Article in Special Issue
Technologies for Water Reuse: Current Status and Future Challenges
Previous Article in Journal
What We Know about Water: A Water Literacy Review
Previous Article in Special Issue
Factors That Limit the Adoption of Biofloc Technology in Aquaculture Production in Mexico
Article

An Improved Configuration of Vertical-Flow Mesh Tube Filters for Seawater Pretreatment: Performance, Cleaning, and Energy Consumption

1
Global Desalination Research Center (GDRC), School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
2
Water Convergence Research Team, Department of Water Industry Promotion, Korea Water Cluster, Korea Environment Corporation, Daegu 43008, Korea
3
KEOSONG Research Institute, KEOSONG Construction Co., Ltd., Seoul 06640, Korea
4
Water Quality Institute, Water Authority Busan, Gimhae, Gyeongnam 50804, Korea
*
Author to whom correspondence should be addressed.
Water 2020, 12(10), 2804; https://doi.org/10.3390/w12102804
Received: 31 August 2020 / Revised: 4 October 2020 / Accepted: 6 October 2020 / Published: 10 October 2020
(This article belongs to the Special Issue Technologies for Water Reuse: Current Status and Future Challenges)
Roughing filters are types of porous media filter used in pretreatment systems where the raw water contains a large amount of suspended particles (SPs) and organic matter. Mesh tube filtration (MTF) media are roughing-filter media composed of low-density polyethylene used for SP removal during wastewater treatment. In this study, we present an improved MTF design—a porous filter bed (PFB), which exhibits superior SP removal performance compared to conventional MTF media. We then compare the applicability of MTF and PFB to both the primary pretreatment process for seawater desalination and the water reuse process. In bench-scale SP removal experiments, PFB shows removal rates of 46.7%, 68.0%, 67.6%, and 68.4% at hydraulic retention times of 15, 20, 30, and 60 min, respectively, which are better than those of MTF. The specific energy consumption (SEC) of batch dissolved air flotation (DAF) was known to range from 0.035 to 0.047 kWh/m3, whereas the SEC calculated for pilot-scale MTF and PFB is 0.027 kWh/m3 and minimum energy for influent supply, respectively. This suggests that PFB can compete with DAF as a primary pretreatment process. MTF predominantly removes SPs by sedimentation, whereas SP removal in PFB typically occurs via deposition of SPs on the mesh tube media. View Full-Text
Keywords: suspended particles; roughing filters; mesh tube filtration; porous filter bed; specific energy consumption suspended particles; roughing filters; mesh tube filtration; porous filter bed; specific energy consumption
Show Figures

Graphical abstract

MDPI and ACS Style

Kim, D.-H.; Choi, C.; Lee, C.; Adha, R.S.; Nguyen, T.-T.; Ahn, S.-J.; Son, H.-J.; Kim, I.S. An Improved Configuration of Vertical-Flow Mesh Tube Filters for Seawater Pretreatment: Performance, Cleaning, and Energy Consumption. Water 2020, 12, 2804. https://doi.org/10.3390/w12102804

AMA Style

Kim D-H, Choi C, Lee C, Adha RS, Nguyen T-T, Ahn S-J, Son H-J, Kim IS. An Improved Configuration of Vertical-Flow Mesh Tube Filters for Seawater Pretreatment: Performance, Cleaning, and Energy Consumption. Water. 2020; 12(10):2804. https://doi.org/10.3390/w12102804

Chicago/Turabian Style

Kim, Dong-Ho, Changkyoo Choi, Chulmin Lee, Rusnang S. Adha, Thanh-Tin Nguyen, Sang-Jun Ahn, Hee-Jong Son, and In S. Kim. 2020. "An Improved Configuration of Vertical-Flow Mesh Tube Filters for Seawater Pretreatment: Performance, Cleaning, and Energy Consumption" Water 12, no. 10: 2804. https://doi.org/10.3390/w12102804

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop