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| Company Info. |
| Zhejiang Huier Coating Environmental Protection Equipment Co., Ltd |
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| Product List |
1. Working principle
Separation mechanism: With pressure difference as the driving
force, macromolecular substances are intercepted through mechanical
screening and adsorption on the membrane surface, and water,
inorganic salts and small molecular organic substances are allowed
to pass through.
Filtration mode:Dead-end filtration: Suitable for low turbidity
(SS < 5 mg/L) conditions, low energy consumption and recovery
rate > 95%.
Cross-flow filtration: Used for high turbidity or
colloid-containing solutions, and reduce membrane pollution by
partially discharging concentrated water.
2. Technical parameters
Operating conditions: Temperature 5-45℃, PH 2-11, upper
temperature limit 60℃ (short term).
Processing capacity: The flux of a single 8-inch membrane module
can reach 40 T/H, and the system recovery rate is 85%-95%.
Tolerance: Oxidation resistance, acid and alkali resistance, can
operate for a long time in an environment containing organic
solvents or high salt.
3. Application scenarios
1. Industrial field
Electrophoretic coating: Recycle electrophoretic paint resin,
reduce wastewater discharge and save 30% of coating costs.
Water treatment: Used for reverse osmosis pretreatment, water
reuse and drinking water purification (removal of bacteria,
viruses, etc.).
2. Food and medicine
Separate concentrated proteins, enzyme preparations, remove heat
sources and microorganisms.
4. Technical advantages
High efficiency: No phase change at room temperature, separation
accuracy reaches nanometer level, suitable for heat-sensitive
substances.
Environmental protection: No chemical additives, reduce VOC
emissions, meet green production requirements.
Low energy consumption: Energy saving of more than 50% compared
with reverse osmosis technology.
5. Operation and maintenance
Pretreatment requirements: Influent turbidity must be <15 NTU,
otherwise sand filtration or multi-media filtration must be added.
Cleaning cycle: Chemical cleaning once every 1-4 months, acid
cleaning (pH2-3) or alkaline cleaning (pH10-11) alternately used.
Membrane replacement standard: When the flux decreases by more
than 30% or the desalination rate is less than 90%, the membrane
assembly needs to be replaced.
6. Precautions
Parameter monitoring: Real-time tracking of transmembrane
pressure difference (TMP), a sudden increase in pressure difference
indicates membrane contamination or blockage.
Membrane protection measures: Avoid water containing oil or
strong oxidants to prevent degradation of membrane materials.
1. Pretreatment system
Multi-media filter: used to intercept impurities such as
suspended matter, algae and rust in raw water (particle size >
100μm), and protect subsequent membrane components from being
blocked by particles.
Activated carbon filter: adsorbs residual chlorine, organic
matter and some heavy metals to reduce the risk of oxidative damage
to membrane materials.
Security filter: equipped with 5-20μm filter element as the final
pretreatment barrier to prevent tiny particles from entering the
membrane system.
2. Core separation unit
1. Ultrafiltration membrane component
Membrane material: polyethersulfone (PES), polyvinylidene
fluoride (PVDF) or polypropylene (PP), etc., with acid and alkali
resistance (pH 2-13) and oxidation resistance.
Structural form:Hollow fiber type: outer diameter 0.5-2.0mm,
inner diameter 0.3-1.4mm, interception is achieved through external
pressure or internal pressure design.
Roll/tube type: suitable for working conditions with high
turbidity or high concentration of suspended matter.
Pore size parameters: 0.001-0.1μm, can intercept colloids, bacteria
and macromolecular organic matter with molecular weight of
1,000-300,000 Dalton.
2. Pressure drive system
High-pressure pump: Provides 0.2-0.6 MPa operating pressure to
drive water flow through the membrane surface to achieve
separation.
Pressure sensor: Real-time monitoring of transmembrane pressure
difference (TMP), feedback on membrane contamination degree and
trigger cleaning procedure.
3. Auxiliary operation device
Backwash device: Use ultrafiltration water or chemical agents for
periodic backwashing to restore membrane flux (cleaning frequency
1-4 months).
Chemical cleaning system: Equipped with acid washing (pH2-3) and
alkaline washing (pH10-11) circulation pipelines to remove
pollutants on the membrane surface.
Automatic control system: Integrated PLC module to realize linkage
adjustment of flow, pressure and temperature, and support dead
end/cross flow mode switching.
4. Pipes and containers
Material selection: UPVC, stainless steel or engineering plastic
pipes, suitable for different water qualities (such as high salt,
organic solvent environment).
Liquid storage tank: used to temporarily store pre-treated water
or chemical cleaning liquid, the capacity is customized according
to the system processing volume.
5. Water production and concentrated water treatment
Water collection: Purified water is output through the water
production main pipe for drinking water, industrial reuse and other
scenarios.
Concentrated water discharge: Concentrated water containing
retained pollutants is discharged through independent pipes or
enters the wastewater treatment system.
Technical features
Modular design: Each component can be replaced or expanded
independently, which is convenient for maintenance and capacity
upgrade.
Energy consumption optimization: Compared with reverse osmosis
technology, the operating energy consumption is reduced by more
than 50%.
Intelligent warning: The pump frequency and valve opening are
dynamically adjusted through the temperature sensor to ensure the
stability of water production.
1.High cost performance: Based on the customer's product
positioning and development strategy, and with economic
affordability as the foundation, we achieve the best cost
performance.
2.The advanced and meticulous design concept of the equipment,
along with the highly automated industrial equipment, showcases the
image of a modern and advanced enterprise.
3. It has high adaptability, meeting the current production
requirements and reserving room for development, taking into
account the needs of increased production and improved quality in
the future.
4.Quality compliance strictly adheres to the ISO900 quality
management system, with every minute detail of the entire equipment
installation being strictly controlled.

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