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Leiblein - Flow Sand Filter
The FlowSand-Filter is an upwards flowing spatial filter with continuous filter bed cleaning. In contrast to other filter systems the filtration process is not interrupted for backwashing. Therefore, there is no need for rinsing water tanks, rinsing pumps, buffer tanks for intermittently accruing sludge water as well as complicated backwashing techniques. By the principle of volume filtration and the continuous filter bed cleaning the FlowSand-Filter can also be used at high solids loads.
- No interruption of the filtration process due to continuous filter bed cleaning
- No collection rinsing water tanks, no rinsing pumps, no buffer tanks for sludge water as well as no complex backwash technology are necessary
- High solids load possible
- Steady filtrate quality
- No loose filter parts, high lifetime and availability
- Feeding without pumps in free inflow possible
- Low energy costs
- Simple assembly
The FlowSand-Filter is available in a container or concrete design.
Container design
The containers, usually made of steel, are available as single filter or as multiple version, where the latter are consisting of several modularly structured single filters.
Concrete design
The concrete design is mainly used with higher throughput rates. A filter plant in concrete design consists of one or several filter lines, each one consisting of several filter cells. The number of filter lines depends on the throughput rate and on the process conditions. The filter cells of a filter line are open among each other and can be isolated linewise. The untreated water inlet and filtrate outlet are made via an inlet and an outlet channel, the rinsing water outlet via a pipeline.
Materials: stainless steel AISI 304 / AISI 316L; coated steel; GRP; PE