Fiber rotary microfiltration machine
The fiber rotary microfilter works according to the mature and widely used rotary drum filtration method. The machine consists of a series of horizontally mounted, rotatable filter turntables mounted on a central tube shaft with a maximum water immersion volume of up to 60%. Each turntable consists of a single stainless steel component. The components are wrapped in a mesh cloth, and the sewage is filtered from the inside out and then from the end of the machine. In the meantime, the turntable begins to stand still. Under the action of gravity, solid matter is deposited on the screen, and over time
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Keyword:Sewage disposal 丨 Drug
Description
Introduction
: The fiber rotary microfilter works according to the mature and widely used rotary drum filtration method. The machine consists of a series of horizontally mounted, rotatable filter turntables mounted on a central tube shaft with a maximum water immersion volume of up to 60%. Each turntable consists of a single stainless steel component. The components are wrapped in a mesh cloth, and the sewage is filtered from the inside out and then from the end of the machine. In the meantime, the turntable begins to stand still. Under the action of gravity, solid matter is deposited on the screen, and over time, the mesh cloth is covered by the trapped solid material. This phenomenon causes the pressure difference to rise. When the pre-set maximum pressure difference is reached, the turntable begins to rotate slowly, and the rinse rod cleans the deposited solids on the filter surface at a certain rhythm. Through a water pump, the filtered wastewater is supplied with rinse water to the sprinkler. The flushing jet dissolves the solids and the backwash water is discharged from the tank through a thick slurry hopper mounted under the assembly. The sewage filtration process is not interrupted during the cleaning process. The fiber rotary microfilter is treated by free drop, and the filtration area is large, which can intercept the activated sludge flocculates from the second sedimentation tank. For circulating water preparation, industrial water/domestic miscellaneous water preparation. Surface water can also be prepared for pre-filtration before preparation of tap water and UV sterilization. It is used for filtration treatment before discharging rivers and seas or before advanced treatment processes.
The main feature is that the mesh material is
used as the filter part, and the filter gap is clearly defined.
There is no need to use a pump to raise the liquid level, and the self-consumption drop can be directly used for sewage filtration.
The head loss is very small, and it is only filtered using the principle of gravity.
The flow of water is high.
No need to use exogenous rinse water.
It can be safely controlled to ensure the quality
of effluent and reduce the cost of sewage discharge.
Reduces filterable solids concentration, COD-, BOD and total phosphorus concentration.
It can be optimally installed in a user-supplied cement tank or
stainless steel box.
Fully enclosed structure, small footprint.
Continuity of work.
Especially suitable for the application of the paper
industry and pulp production industry
circulating water preparation, rinsing water preparation, industrial water preparation. In the preparation of process water in the food industry and chemical industry,
solid-liquid separation
in the synthetic materials industry, the effluent quality of urban sewage treatment plants is upgraded to a level B standard
Technical specifications
: Fiber turntable microfilters have only one mechanical specification. The treatment flow of the unit is related on the one hand to the number of filter turntables installed in parallel configuration, and on the other hand to the gap distance of the filter grid and the solids content of the treated effluent. The maximum number of filter turntables that can be installed in parallel on the central pipe shaft in one machine can be up to 20, for example, in the prefiltration treatment of municipal wastewater, that is, before biochemical treatment, the maximum treatment flow rate can reach 1500m/h. The grid gap range of the installable configuration is 10-100um, which can be configured according to the effluent requirements. In the standard case, the box and turntable screen basket are made of stainless steel.
Application:
Fiber rotary microfilters are used to separate fine suspended matter in municipal and industrial wastewater, and the module assembly method allows for convenient post-rotary extended installation. To cope with the rising amount of treated water, the number of turntables can be increased to 20 when treating municipal wastewater and pre-filtration before biochemical treatment, and the maximum flow rate can reach 1500m/h.
Sewage is filtered before discharging into the river
to reduce the COD/BOD and total phosphorus concentration in the drainage into the receiving water body is an important prerequisite for protecting our rivers, especially in the river discharge project, most cases only have mechanical primary treatment, can use microfiltration technology, so that the river is not polluted by raking oxygen solids and protected. By adding precipitation agents and flocculants in advance, the treatment efficiency can be further improved, and the filtration treatment is carried out before the advanced treatment process, in some subsequent sewage treatment process steps, such as ultraviolet disinfection and membrane treatment
process, the separation and removal of fine suspended particles is an important prerequisite for normal and effective operation, especially in the hollow fiber membrane filtration device, which requires fine filtration of sewage, separation of hair and fibrous substances, and prevention of arguing and blockage in the membrane. Otherwise, the membrane diafiltration capacity and overwater treatment capacity will be reduced.
With the increase of environmental awareness and the avoidance of reducing the amount of garbage generated in the future, the role of the recycling treatment technology of useful substances is increasing, and only through the filtration and retention of technical specifications is one step recycling, in the water area, the sewage after filtration treatment can be used renewably, and the nutrients contained in it can be further used as fertilizer. The sewage produced by cleaning industrial process water
in the production process usually contains suspended solids and needs to be prepared and treated, and before the sewage is discharged into the sewer, it is often required by law to carry out mechanical pretreatment in the source of pollution in situ, separate and retain solid low substances, and under normal circumstances, the traditional filtration method and precipitation process can not meet the increasing treatment requirements.
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