Influence of centrifuge dewatering effect in Shanghai's centrifuge | scum moisture content

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Test conditions: centrifuge drum rotational speed 3200r / min, differential of 4 ~ 6R / min, adjustable impeller diameter 265mm; scum oil content of 5.920 ~ 6.980 g / L, dross polymer flocculants dosage of 0.125g / L in wastewater; coagulant PAC dosage of 0.350g / L, coagulant polyacrylamide dosage of 0.100g / L. Shanghai centrifuge understanding to the feed water content of scum and oil content changes on centrifugal dewatering effect can be seen from the table, no change in oil content under the condition of scum, scum of moisture content change and the recovery rate of solid size relationship is not big, but the separation of the liquid oil content change is bigger, the oil and sludge and scum the situation is not the same as the relevant contact. Scum oil content and oil content of oily wastewater, water dosage and scum coagulant rate. Oily wastewater decreased, oil content into the air flotation equipment of coagulant dosage is added and the water content of scum rises will make the scum oil content decreased. Shanghai centrifuge found that the amount of coagulant dosage according to the water quality situation of sewage in a certain scale appropriate to add, but to ensure that the coagulation condition. To decrease the oil content in the progress of scum scum moisture way do rules penny wise and pound foolish, because of the addition of water content of scum progress will inevitably lead to dry sludge output and centrifugal dewatering machine load.