The mechanical filter is divided into single-layer filter medium and multi-layer filter medium. The filter material of single layer medium filter is quartz sand or anthracite gravel cushion. The filter material of multi-medium filter can be anthracite, quartz sand filter material and gravel. Multimedia filter is generally used. The filter material of the multi-medium filter is mainly composed of quartz sand and anthracite, and quartz sand and gravel as the cushion. Mainly through the quartz sand and anthracite adsorption, gap filtration to remove suspended matter, colloids and other small particles in the water, the use of interlayer gap to remove larger particles and suspended matter.
Equipment overview:
The mechanical filter is divided into single-layer filter medium and multi-layer filter medium. The filter material of single layer medium filter is quartz sand or anthracite gravel cushion. The filter material of multi-medium filter can be anthracite, quartz sand filter material and gravel. Multimedia filter is generally used. The filter material of the multi-medium filter is mainly composed of quartz sand and anthracite, and quartz sand and gravel as the cushion. Mainly through the quartz sand and anthracite adsorption, gap filtration to remove suspended matter, colloids and other small particles in the water, the use of interlayer gap to remove larger particles and suspended matter.
It can be designed as manual and automatic control mode, which can be switched between each other. The automatic control system monitors and controls all operation points and process control points, and the operation can realize unattended and fully automatic operation. The system adopts air water backwash and backwash wastewater is discharged. The system design mostly uses concentrated water of reverse osmosis system for backwashing, which improves the utilization rate of water.
When the filter is backwashed, automatic backwashing can be realized through the backwashing time interval set by the upper computer or backwashing can be carried out according to the pressure difference set value at the inlet and outlet of the filter.
The operation modes of the filter include water production, water backwashing, air backwashing, forward washing, etc. All the operation modes run automatically according to the set program.
Equipment features:
Can effectively remove suspended matter and algae and other organic matter in raw water, reduce the turbidity of raw water.
Can effectively remove the colloid in the raw water, remove the oxides in the water.
Unique uniform distribution of water, so that the filtration to achieve the maximum effect, can meet the follow-up device for a long time to turbidity requirements.
Backwash device with air scrubbing, strong ability, short time, low water consumption.
The use of high quality ABS or stainless steel water cap, packing selection of high quality filter material, in order to ensure good filtration effect, and will not appear backwash disarray layer phenomenon.
The device is equipped with inlet and outlet pressure differential switch, automatically realizes automatic backwash according to the set operating pressure differential value.
The system design uses the concentrated water of the follow-up device to backwash, which improves the utilization rate of water.
Conditions of use:
1. The COD: 5-15 mg/L
2. Suspended matter: < 20mg/L
3 hardness: 0.3mg/L
Scope of application:
Mainly used in drinking water and industrial water containing a small amount of suspended matter, colloid and particulate matter pretreatment stage.
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