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The moisture content of sludge in sewage plant is 80%-85%,In order to disposal, sludge need to be deep dewatering. The test added in composite conditioner with calcium superphosphate in different proportion. Measure the moisture content ,ph and volatile organic matter. The experimental results show that, Composite conditioner can improve the performance of sludge dewatering effectively, The moisture content of sludge decreased to less than 60%,ph of Sludge drop below 10,the addition of calcium superphosphate is prevented the loss of organic matter.

Study on Stability of Sludge and Landfill by Composite Conditioner with Calcium Superphosphate