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In allusion to the problem that the superheated steam need to be cooled down by a temperature and pressure reduction device if its pressure exceeds the requirement of a absorption refrigerator, based on the cascaded utilization of energy and the theories of compression refrigeration and absorption refrigeration, a new type of district cooling system driven by surplus steam is introduced. Calculation...
Cleaning strategies for algae-fouled ultrafiltration membrane were investigated in pilot-scale experiments. Comparison of five different physical cleaning modes indicated that backwashing followed by forward flushing was more effective for flux recovery, and combining hydraulic cleaning with air sparge could improve the permeate flux recovery percent up to 87.49%. Cleaning frequency should be taken...
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