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Filters: Keyword is roughing filtration and Author is Collins, M.R.  [Clear All Filters]
M. R. Collins, Roccaro, J. V., Cole, J. O., and Westersund, C. M., Evaluation of roughing filtration design variables. Denver, CO, USA: American Water Works Association, 1994, p. xxvii, 181 p.: 83 fig., 50 tab.
M. R. Collins, Eighmy, T. T., and Malley, J. P., Evaluating modifications to slow sand filters, Journal American Water Works Association, pp. p. 62-70: 7 fig., 5 tab., photogr., 1991.
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