Jiangsu Gena Environmental Engineering Co., Ltd
Zero Wastewater Discharge Total Solution Provider
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The working principle of tubular microfiltration equipment is based on microporous filtration technology. The fluid flows through the filter tube under pressure, and impurities larger than the pore size of the filter tube are retained on the surface of the filter tube, while small molecules pass through the filter tube to become permeate, thus achieving separation and purification.
Working principle:
The core of the tubular microfiltration equipment is the microporous filter membrane, whose pore size is usually between 0.1-10 microns. Using the screening principle of the membrane, when the liquid passes through the microfiltration membrane driven by the pressure difference, the particles or molecules larger than the membrane pore size will be retained on the membrane surface to form a filter cake or adsorption layer, while the particles or molecules smaller than the membrane pore size will pass through the membrane pore smoothly to achieve separation. In addition, the filtration mechanism also includes mechanical interception, adsorption interception and bridging interception.
Operation mode:
Internal pressure type:
The solution to be treated is injected through one end of the tubular microfiltration membrane, and the solution is driven through the membrane pore size by internal pressure to achieve the purpose of separation. It is suitable for small flow and high precision requirements.
External pressure type:
A certain pressure is applied to the outside of the tubular microfiltration membrane to make the solution separate through the membrane pore size. It is suitable for large flow and faster requirements.
Core components:
Microporous filter membrane:
Generally made of ultra-high molecular polymer, it has good chemical stability and mechanical strength, and can withstand a certain range of acid and alkali environments and pressures. For example, the PVDF membrane of POREX tubular microfiltration membrane can be cross-linked with the inner wall of the PVDF support tube or embedded in the inner wall of the PE support tube, forming a strong bond with the support tube, so that the membrane tube can work under higher operating pressure and backwash pressure, and obtain extremely high solid removal efficiency and membrane flux.
Membrane tube:
usually made of corrosion-resistant and wear-resistant materials, such as polyvinylidene fluoride (PVDF), polyethylene (PE), etc., with good chemical resistance and thermal stability, and can adapt to different working environments.
Equipment features:
High filtration accuracy:
can reach 0.1µm micro/ultrafiltration filtration accuracy, can effectively intercept suspended particles, colloids, bacteria, macromolecular organic matter and other pollutants in water, and the effluent water quality is good, which can meet the high standard water quality requirements of different industries.
Wide range of application:
can adapt to the treatment of various high turbidity, high temperature, high solid content, high corrosiveness, and high oxidizing liquids, and can be used at pH0-14 It can operate stably under the conditions of , and can be widely used in liquid-solid separation in the fields of petrochemical, pharmaceutical, fertilizer, food, brewing, environmental protection, electronics, etc.
Fast filtration rate:
The filtration rate can reach 5-10m³/m²・h, which is more than 3 times that of traditional precision filters. It has strong processing capacity and can effectively improve production efficiency.
Strong pollution resistance:
The filter element has excellent pollution resistance and anti-clogging performance. There is no need to worry about leakage during the life cycle. It adopts an air wash + water wash backwash system. The filter membrane is disinfected while backwashing. Generally, it is automatically backwashed every 30-60 minutes, and each backwash time is 60-90 Seconds, which can effectively extend the service life of the membrane.
Simple chemical cleaning:
When the membrane is seriously contaminated, it can be cleaned with low-concentration diluted sulfuric acid or sodium hypochlorite and other conventional chemical agents. After cleaning, the flux can be restored immediately, with less drug usage and low cost.
Simple equipment integration:
The full set of tubular microfiltration system includes all electronic control components, such as raw water pump, inverter, pressure sensor, electromagnetic flowmeter, automatic instrumentation, online raw water and filtered water turbidity meter, programmable controller (PLC), monitoring machine, etc. The equipment has two switchable operation modes: automatic and manual. Under normal circumstances, the operation and backwashing of the equipment are all automated, which can reduce the overall investment cost and facilitate operation and management.
Application areas:
Wastewater treatment:
It can be used for pretreatment or deep treatment of various industrial wastewaters, such as removing heavy metal ions, suspended matter, colloids and other pollutants in wastewater, improving the biodegradability of wastewater, reducing the load of subsequent treatment processes, and achieving standard discharge or reuse of wastewater. For example, in the treatment of electroplating wastewater, it can effectively remove high-concentration solid matter and heavy metal ions in the electroplating tank liquid, so that the treated water meets the reuse or discharge standards.
Drinking water production:
It can be used as a pretreatment or deep treatment equipment for drinking water to remove bacteria, viruses, colloids, organic matter and other impurities in the water, improve the water quality of drinking water, and ensure the safety and hygiene of drinking water.
Food and beverage industry:
It can be used for decolorization, filtration and separation and purification of food such as edible oil, juice, beer, liquor, soy sauce, sugar, etc., to remove impurities, colloids, macromolecular substances, etc., and improve the quality and stability of products.
Pharmaceutical and chemical industry:
In the production process of pharmaceutical, chemical and other industries, it can be used for solid-liquid separation, material purification, solvent recovery and other processes to improve the purity and yield of products and reduce the emission of pollutants.
Electronic industry:
It can be used for the pretreatment of water for the electronic industry to remove tiny particles, organic matter and other impurities in the water to prevent them from polluting electronic components and ensure the normal operation of electronic equipment.
