A filter press is a device specifically used for solid-liquid separation. Does it also have the same purpose in sewage treatment? There are many types of sewage, but no matter what type, the filter press can ultimately separate solids and liquids. For those solutions, separation can only be achieved after adsorption or chemical reactions produce solids. Moreover, the smallest particle that a filter press can separate is generally only about 2MM.
The filter press is a mechanical dehydration equipment with the characteristics of low energy consumption, low dosage, high separation efficiency, and high solid content of mud cake. It seems that it does not work continuously, but in fact the processing capacity is not small. The sewage treatment filter press has greatly improved the pollution of sewage to the environment in the current production. At the same time, the sewage treatment filter press is easy to operate. Let's take a look at the role of the sewage treatment filter press:
Sludge treatment can be divided into two processes: sludge dehydration and sludge drying. Different types of filter presses have their own advantages. After the sewage is treated with sedimentation, a large amount of sludge will be produced. Even after concentration and digestion, the water content is still as high as 96%. The volume is large and difficult to dispose of. It must be dehydrated to increase the solid content of the mud cake to reduce the floor space occupied by the sludge stack.
The belt filter press is less affected by the fluctuation of the sludge load. It also has the characteristics of low water content of the mud, stable operation, low consumption, relatively simple management and control, and low requirements on the quality of the operating personnel. At the same time, since the belt filter press dehydrator entered the country earlier, a considerable number of manufacturers can produce this equipment, but it has been eliminated by the market.
When making decisions on sewage treatment project construction, plate and frame filter presses can be used to reduce project investment. At present, most newly built sewage treatment plants in China use belt filter presses. Compared with other types of dewatering machines, plate and frame filter presses have the highest mud cake solid content, which can reach 35%. If the factors of reducing the land occupation of sludge stacking are considered, plate and frame filter presses should be the first choice.
At present, there are different types of filtering equipment on the market, including filters, filters, filters and other types. Among them, the plate and frame filter is the most widely used filtering equipment on the market, and has long occupied half of the domestic filtering equipment market.
The filter press is used for separation of solids and liquids, referred to as solid-liquid separation. It is a physical process that extracts solids from a mixed liquid to achieve the effect of solid-liquid separation. For example, in sewage treatment, the mud in the sewage is filtered out. The filter press can be used in: chemical industry, metallurgy, mining, sewage treatment, coal washing, ceramics, inorganic salts, textiles, printing and dyeing, dyes, papermaking, starch, petroleum, sugar, pharmaceuticals, food, beverages, oils, alcohol and other solid-liquid separation and filtration fields.
When the sludge treated by the filter press is landfilled, sludge dehydration can greatly reduce the sludge accumulation space and save the cost incurred during transportation; when the sludge is composted, sludge dehydration can ensure the smooth composting (the composting process generally requires the sludge to have a lower water content); if the sludge is incinerated and centrally treated, the high sludge dehydration rate can greatly reduce the heat energy consumption and reduce the cost of hazardous material treatment.
Post time: 2024-09-04 00:00:00