Chittaranjan Ray, Ph. D. , P. E. University of Hawaii at MApnoa Honolulu, Hawaii, United States JA¼rgen Schubert, M. Sc. Stadtwerke DA¼sseldorf AG DA¼sseldorf, Germany Ronald B. Linsky National Water Research Institute Fountain Valley, California, United States Gina Melin National Water Research Institute Fountain Valley, California, United States 1. What is Riverbank Filtration? The purpose ofthis book is to show that riverbank filtration (RBF) isa low-cost and efficient alternative water treatment for drinking-water applications. There are two immediate benefits to the increased use of RBF: Minimized need for adding chemicals like disinfectants and coagulants to surface water to control pathogens. Decreased costs to the community without increased risk to human health. Butwhat, exactly, isRBF? In humid regions, river water naturally percolates through the ground into aquifers (which are layers of sand and gravel that contain water underground) during high-flow conditions. In arid regions, most rivers lose flow, and the percolating water passes through soil and aquifer material until it reaches the water table. During these percolation processes, potential contaminants present in river water are filtered and attenuated. If there are no other contaminants present in the aquifer or ifthe respective contaminants are present at lower concentrations, the quality of water in the aquifer can be ofhigher quality than that found in theriver. In RBF, production wells a which are placed near the banks ofrivers apump large quantities ofwater.In each of the alternatives involving a tunnel and a centralized pump station, the 0.88-m3/s pump station was estimated at $4 million. ... alternatives for construction, the factors that drove the deliberations included the ease of well screen maintenance, capital cost, the number of above-ground facilities, ... Final design is anticipated in 2003, with construction beginning in 2004 and extending through 2006.
|Author||:||C. Ray, G. Melin, R.B. Linsky|
|Publisher||:||Springer Science & Business Media - 2003-12-31|