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The efficiency of removing organic substances from source water by coagulation in clarifiers does not exceed 50¨C70%. The use in clarifiers of imported flocculants (among which are neutral ones like Accoflock No. 100, weakly cationite ones like Accoflock C-483, and anionite ones like Accoflock A-110 and Accoflock A-130) and domestically produced flocculants (PAA and VPK-402) allows the throughput capacity of clarifiers to be increased by 15¨C20% and the efficiency of removing organic matter to be improved by 10-20%. Metering powdered activated carbon into clarifier also somewhat increases the extent of removing organic impurities, but this operation requires up to 0.5 kg/t of activated carbon. In addition, the treatment of water in clarifiers requires bulky equipment and has well-known drawbacks as far as control and closed-loop regulation of its operation are concerned. |
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mfw553947967: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-04-18 15:08:16
mfw553947967: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-04-18 15:08:16
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