With knowledge about the environmental pollution control, sewage treatment plants in major cities continued with the built and put into operation, an effective solution to sewage sludge treatment and disposal has become an urgent matter. Taking into account that the sludge is a resource, some countries started to restrict the sludge directly to landfill, the landfill costs rise, causing the market demand of people of advanced treatment sludge, reduction and resource. These proposed restrictions include: the moisture content of the sludge landfill must be less than 50%; organic matter content of less than 30%;
The filter press dewatering equipment as a mature, widely used in the field of environmental protection, sewage sludge treatment equipment.
Sludge mechanical dewatering of capillary water to remove the sludge particles, ordinary mechanical dewatering of sludge moisture content is often 65% -80%, was the mud pie.
Mechanical dewatering equipment belt filter press, plate and frame filter press and Decanter centrifuge, is commonly used Van filter, separator machine and Kincaid, high pressure filter machine.
Sludge landfill, sludge dewatering can significantly reduce sludge accumulation site, saving the costs incurred in the transport process; for composting of sludge, sludge dewatering to ensure that the compost successfully (the composting process, the general requirements The sludge had a lower moisture content); Should the sludge incineration, sludge dewatering rate can significantly reduce energy consumption for heating.
However, the sludge composition is complex, the smaller the relative density of smaller particles, and often colloidal condition, its not easy to dehydration characteristics, so far. Further enhance the degree of sludge dewatering is a hot research topic at home and abroad.
Low power consumption of belt filter press. Plastic plate and frame filter press cake moisture content is low, but adaptable Decanter Decanter centrifuge for sludge flow fluctuations, airtight performance, large capacity, small footprint. Of the past most of the sewage treatment plant using centrifuge, belt filter press and frame filter press, small-scale sewage treatment plants are commonly used dewatering machine. Chamber filter press, membrane filter press is commonly used, as well as the latest sludge dewatering technology Kincaid to the high-pressure metal frame machine, sludge treatment cost is low, the machine production of patented products from Foshan Kincaid filtered Equipment Co., Ltd. R & D The unique technology is ideal for sludge dewatering equipment.