Biblio

C. J. Fahlin, “Hydraulic properties investigation of the Potters for Peace colloidal silver impregnated, ceramic filter”. University of Colorado at Boulder, Boulder, CO, USA, p. xi, 69 p. : 25 fig., 24 tab., 2003.

T. A. Elmitwalli, Anaerobic treatment of domestic sewage at low temperature. Wageningen, The Netherlands: Agricultural University Wageningen, 2000, p. 113 p. : fig., tab.

D. Rout, Verma, R., and Agarwal, S. K., “Polyelectrolyte treatment : an approach for water quality improvement”, Water science and technology, pp. p. 137-141 : 3 fig., 1999.

J. Bratby, Coagulation and flocculation : with an emphasis on water and wastewater treatment. Croydon, UK: Uplands Press, 1980, p. xi, 354 p.: fig., tab.