TY JOUR TI ELECTROSTATIC FIELD INFLUENCE ON THE ADSORPTION IN THE NATURAL WATER PURIFICATION PROCESS KW voltage across the electrodes KW distance between electrodes KW total iron KW coloration KW sorbent KW water JO Bulletin of KSAU AU Hilyuk, A.V. AU Rogov, V.A. AU Prusakova, V.A. PY 2013 IS PB Krasnoyarsk State Agrarian University