Chemical conditioning method of dehydration pretreatment of activated sludge
A technology of activated sludge and chemical conditioning, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of high price, high treatment cost, difficult to achieve, etc., and achieve reduced treatment cost, low treatment cost and improved effect Effect
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[0018] Take 5 kg of sludge dewatered to about 80% in the sewage plant, add 5 liters of water and stir well to obtain a sludge suspension with a water content of about 90%. Take a certain amount of sludge solution and add ferrous chloride and ferrous chloride according to the above steps. Quicklime, the mixed liquid obtained by stirring uniformly is transported to a vacuum filter with a pressure of 60-100 Pa, and the mixed liquid is suction filtered and dehydrated until the water is drained, and the sludge dehydration rate is calculated. The specific sludge dewatering filtration rate data is as follows:
[0019] Sludge amount
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