Filter Press Calculator

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Filter Press Calculator

1, filtration area standard: according to the national standard production and manufacture of filter press filtration area per square is equivalent to 15L of solid volume.

2. Before filter-pressing: volume V1 (M3), water content of sewage before filter-pressing a=97.5%~99.2% (general empirical value).

3. After filter-pressing: volume V2 (M3), water content of sludge after filter-pressing b=75%.

4. Filter-pressing cycle: Number of filter-presses per day n.

5. Balance of solids method: V1 × (1-a) = V2 × (1-b ), resulting in V2 = V1 × (1-a) / (1-b ).

6. Filter area: = 1000 x V2/15/t = 1000 x V1 x (1-a)/(1-b )/15/t.

7, for example, every day after treatment (to the sludge thickening tank) to produce wet sludge volume V1 = 6.0 M3, moisture content a = 98.0%, to be prepared every day on the sludge thickening of sludge treatment once, it is necessary to select the filter area of the filter press = 1,000 × 6.0 × (1-98%) / (1-75%) / 15/1 = 32, according to the calculations proposed to select the 35M2 (larger than 32 M2).