Removal of Suspended Solids using On-Site Filtration of Surface Water

Title: Removal of Suspended Solids using On-Site Filtration of Surface Water
Author(s): Thejashree N. RAMALINGAIAH, Catherine N. MULLIGAN, Masaharu FUKUE
Paper category : conference
Book title: 2nd International Conference on Waste Engineering and Management - ICWEM 2010
Editor(s): J.Zh. Xiao, Y. Zhang, M.S. Cheung and Reuben P. K. Chu
Print-ISBN: 978-2-35158-102-5
e-ISBN: 978-2-35158-103-2
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 793 - 803
Total Pages: 11
Nb references: 13
Language: English

Abstract: Compromised water quality impacts many surface water resources worldwide. The decline in the water quality can be attributed to various pollutants discharged into water areas such as rivers, lakes and ponds. Most of the pollutants, such as nutrients, organic compounds, bacteria, which were released into the water areas, are adsorbed onto the surface of the suspended solids (SS) and settle to the bottom. Phosphorus (P) is considered as the controlling element in the propagation of eutrophication in water bodies. Algal blooms threaten lake water quality and in order to control their growth, removal of P along with the SS is essential. The focus of this study was to improve water quality by removing SS and phosphorus through pilot scale on-site filtration tests. A nonwoven geotextile was used as the filter medium. The pilot-scale unit was set up at Lac Caron located 75 km north of Montreal in Saint-Anne-des-Lacs, Quebec, Canada. Filtration tests using four different nonwoven filters were performed. A nonwoven filter with apparent opening size (AOS) and the thickness of 150 µm and 0.3 cm was effective in removing SS concentration by 91%. The water quality improved in terms of SS and P removal rendering an effective treatment system.

Online publication: 2011-01-25
Publication type : full_text
Public price (Euros): 0.00