Water Supply & Drainage Division

BPS type Dehydrator (Belt Press type Dehydrators)

BPS type Dehydrator (Belt Press type Dehydrators)

Structure and Flow

Dehydrator structure of BPS type

Products Introduction

Compared to conventional belt press dehydrators, the BPS dehydrator includes a suction zone in the gravity dehydration unit to minimize the size of the unit. This innovation has allowed for a more simple overall design and means that the dehydrator requires less installation space and is lighter than previous models.

The BPS dehydrator also employs an optional recycling unit that saves water usage to between 50% and 80% of the previous volume.

Features

  1. 1.Stable mass treatment
    Suction dehydration + gradual pressure
  2. 2.Dehydration possible to low water content
    Suction dehydration + gradual pressure
  1. 3.Recycler (option)
    Greatly saves washing water
    (Reduction of 50% to 80% possible depending on the sludge)

Typical Values for Various Dehydration Applications

Sludge type Sludge concentration
(%)		 Coagulant additive rate
(compared to SS%)		 Treatment capacity
(kg-ds/
m・h)		 Cake water content
(%)
Sewage          
Mixed raw sludge 2.0～3.5 0.4～0.8 120～200 63～78
Excess sludge 1.6～2.5 0.5～1.0 80～130 78～84
Human waste          
Digested sludge 2.5～4.2 0.3～0.7 130～200 63～78
Excess sludge 1.4～3.6 0.5～1.0 70～160 80～84
Primary + excess + coagulation 2.0～3.5 0.5～0.9 100～150 74～82
Low dilution two stage activated treatment
        
Excess sludge 1.5～3.5 0.6～0.8 80～150 80～84
Excess + coagulation 1.5～3.5 0.6～1.0 70～130 81～85
Slaughterhouse          
Excess sludge 1.2～2.5 0.6～1.0 60～140 81～84
Primary + excess + coagulation 2.0～3.5 0.5～0.9 85～150 75～84
Industrial wastewater          
Paper factory 2.0～4.0 0.4～0.9 100～250 69～77
Chemical factory 1.2～2.0 0.6～1.2 50～110 81～84
Food factory 0.8～2.0 0.5～1.2 50～120 81～85

Main Body Specifications

Type BPS-50 BPS-75 BPS-100 BPS-150 BPS-200 BPS-300
Effective Filter Cloth Width
(mm)		 500 750 1,000 1,500 2,000 3,000
*Washing Water Volume
(m3/h)		 Without recycling 2.5 3.2 4.3 5.8 7.9 11.5
Recycling 0.5～1.3 0.6～1.6 0.8～2.2 1.2～2.9 1.6～4.0 2.3～5.8
Motor
(kW)
(50Hz
/60hz)		 Filter cloth drive 0.75 1.5 1.5 2.2 2.2 3.7
Blower 0.55/
0.72		 1.3/1.7 1.8/2.6 2.1/3.1 3.8/5.4 3.8/5.4
Compressor 0.4 0.4 0.4 0.4 0.4 0.4
Total 1.7/1.87 3.2/3.6 3.7/4.5 4.7/5.7 6.4/8.0 7.9/9.5
Outer Dimension
(mm)		 Length 2,770 2,770 2,770 2,845 2,845 4,505
Width 1,835 2,165 2,435 2,965 3,565 5,050
Height 1,965 1,965 1,965 2,018 2,018 2,750
Weight (t) 1.8 2.2 3.0 4.2 5.2 8.0

Note: *Treatment capacity differs depending on the nature of the sludge.

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