There are a lot of kinds of dehydrator for sludge arises from wastewater treatment plants. Among them, screw press dehydrator performs dehydration by squeezing and filtering while screw blades are rotating. ■ Screw press dehydrator A screw press dehydrator is configured by screw blades and mesh patterned cylindrical screens around it. Space between the blades […]
There are a lot of kinds of dehydrator for sludge arises from wastewater treatment plants. Among them, filter press dehydrator is a dehydrator which dehydrates sludge by pressing and injecting into limited space called filtering room. Sludge dehydrated by the filter press tends to have lower moisture content compared with other types of dehydrators. Also, […]
Sludge generated in wastewater treatment plants pass through condensation process and conditioning process, then next process is dewatering. In dewatering process, pre dewatered sludge which have moisture content of 95% or higher is separated into solid matters and liquid, and solidified by squeezing water out. By this process, sludge in liquid state becomes cake-like state and […]
Drying of chemical factory sludge / Test cases Material to be dry: Chemical factory sludge Purpose of drying:The costs reduction of industrial waste disposal Moisture content: 80％W.B. before drying, 10％W.B. after drying Requirements for dryer: No clogging inside of the dryer since materials being dried are adhesive. 24-hour unattended operation. Test result: OK […]
Sludge arise in wastewater treatment plant passes through condensation process first, then enter to next process called conditioning. These processes are pre-treatment steps of dehydration process which comes next, and they make sludge easier to be separated into solid matters and water depending on each types of dehydrator used in dehydration process. Conditioning is a […]
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