PROC10 Standard RO Membrane Industrial Wastewater Desalination Filter Element

PROC10 Standard RO Membrane Industrial Wastewater Desalination Filter Element

PROC10 standard anti-pollution RO membrane is a mainstream industrial reverse osmosis filter matched with TSE series low-pressure RO membrane, FR high-rejection RO membrane and pre-filter cartridge for municipal wastewater recycling, printing and dyeing wastewater treatment. It adopts 34mil widened feed spacer and smooth low-adsorption polyamide membrane surface, delivering 99.75% nominal salt rejection and stable low-pressure water production, effectively solving frequent membrane fouling, high energy consumption and short cleaning cycle troubles of industrial water systems. This standard RO element supports wide pH chemical cleaning, extends service life, cuts operation cost, and becomes the preferred filtration core for global water treatment engineering contractors and factory water reuse projects.

Product Description

PROC10 standard RO membrane element belongs to the standard 8-inch spiral wound reverse osmosis filter series, designed for medium-contaminated raw water including biochemical effluent, surface water and industrial mixed wastewater, and can form complete multi-stage filtration system with TML brackish water RO membrane and large flow security filter cartridge. The overall structural size follows international standard 8040 membrane specification, with effective membrane area up to 39.7㎡ and rated daily water production of 10500GPD (39.7 cubic meters). Different from ordinary standard RO filters on the market, PROC10 standard version optimizes the feed channel spacer and membrane separation layer formula oriented to wastewater pollution characteristics, balancing desalination efficiency, anti-fouling performance and operation energy consumption, without relying on ultra-high pressure pump to maintain stable water yield. The end cap reserves built-in exhaust channel, which avoids membrane slice damage caused by water hammer impact during system startup and shutdown, and is compatible with most mainstream 8-inch membrane pressure vessels, no special modification required for old water treatment equipment replacement. All raw materials meet industrial water safety standards, no toxic additive precipitation during long-term operation, suitable for long-cycle continuous industrial production water treatment working conditions.

Working Principle

Reverse osmosis pressure-driven separation mechanism is the core working logic of PROC10 standard RO membrane. Natural osmosis refers to solvent flowing from low-concentration clean water side to high-concentration salt water side through semi-permeable membrane under natural pressure. When external pressure higher than the solution osmotic pressure is applied on the wastewater side of PROC10 membrane element, the flow direction reverses, pure water molecules penetrate the polyamide semi-permeable separation layer and flow into the central product water pipe, while dissolved salts, heavy metal ions, colloids, organic matter and microbial flocs are intercepted on the feed water side, forming concentrated wastewater discharged from the concentrated water channel. The 34mil thickened spacer inside the membrane forms turbulent water flow, which continuously scours the membrane surface during operation to slow down pollutant deposition, realizing continuous separation of clean product water and concentrated wastewater under constant pressure circulation.

Technical Features

1. 34mil widened anti-blocking feed spacer

Compared with conventional 28mil thin spacer standard RO membrane, PROC10 adopts thicker widened flow channel structure, water turbulence intensity increases significantly, concentration polarization degree decreases, membrane differential pressure rising rate reduces by over 40%, suspended solids and organic sludge are not easy to accumulate on membrane surface, chemical cleaning cycle is greatly extended.

2. Low adsorption smooth polyamide membrane surface

High cross-linking aromatic polyamide separation layer forms ultra-smooth membrane surface with few adsorption sites, humic acid, printing dyes, biological slime hardly adhere to the surface; flux recovery rate reaches more than 95% after acid and alkali cleaning, long-term operation water yield attenuation is gentle without rapid performance decline.

3. Ultra-stable high salt rejection index

Nominal salt rejection rate reaches 99.75%, minimum guaranteed desalination efficiency 99.6%, excellent interception effect on calcium and magnesium hardness, sulfate, trace heavy metals and COD, primary RO produced water conductivity keeps stable under fluctuating raw water salinity, can directly supply workshop reuse or match secondary RO/EDI for ultra-pure water preparation.

4. Wide-range chemical cleaning tolerance

Continuous operation pH range 2–11, cleaning allowable pH range expands to 1–13, resistant to high concentration citric acid pickling, mixed alkali and sodium hypochlorite biocleaning, can completely remove inorganic scale, organic filter cake and biological film formed on membrane surface during long-term operation.

5. Built-in end plate exhaust protection structure

Independent exhaust channel integrated on membrane end cap, rapidly exhaust air inside membrane element during equipment startup and shutdown, eliminate water hammer impact damage risk, reduce membrane breakage failure rate for frequently started and stopped industrial wastewater treatment systems.

Product Advantages

1. Low pressure energy-saving operation to cut power cost

Rated test pressure only 1.55MPa, stable water production within 1.6–2.2MPa operation pressure window, no high-pressure booster pump required compared with high-pressure anti-pollution RO membrane, system overall power consumption reduces by nearly 30%, long-term factory water reuse project forms obvious electricity cost savings.

2. Long service life reduces spare parts replacement frequency

Anti-fouling structure plus wide chemical cleaning window slows irreversible pollution accumulation, actual service life in industrial wastewater working condition reaches 2–3 years, far longer than ordinary standard RO membrane (1–1.5 years), less frequent membrane replacement cuts spare parts procurement and equipment shutdown maintenance loss.

3. Universal standard size without customized transformation

8040 international standard overall dimension, compatible with all common 8-inch membrane pressure vessels on the market, factory old water treatment equipment renovation can directly replace old membrane elements, no extra pipeline, support and sealing piece customization cost input.

4. Stable water production adapts to fluctuating raw water quality

Strong anti-interference ability to raw water turbidity, organic matter content and salinity fluctuation, even if the influent water quality deteriorates in rainy season, the produced water index still meets industrial reuse standard, avoiding production halt caused by unqualified outlet water.

5. Low comprehensive operation and maintenance cost

Extended chemical cleaning cycle reduces cleaning agent consumption and manual labor hours; low membrane damage rate lowers replacement cost; stable water yield avoids excess pump power consumption, forming comprehensive low-cost operation advantage for medium and large water treatment systems.

Application Fields

1. Municipal wastewater and park reclaimed water recycling

Process secondary biochemical effluent of municipal sewage plant and circulating cooling drainage of industrial park, produced water used for workshop cleaning, green irrigation and circulating water replenishment, reduce fresh water intake and meet local industrial water-saving environmental protection regulations.

2. Iron and metallurgy wastewater treatment

Treat rolling turbid circulating water and cold rolling comprehensive wastewater, intercept iron ions, suspended solids and heavy metal salts, realize closed-circuit wastewater circulation, lower ton steel water consumption for steel mills and metal processing plants.

3. Printing and papermaking industrial wastewater purification

Remove printing dyes, lignin, chroma and COD from printing wastewater; conduct desalination treatment for paper white water after biochemical process, reduce concentrated water discharge and reuse clean water for production process to solve frequent membrane blockage problem of printing and papermaking water systems.

4. Landfill leachate primary RO separation unit

Match MBR effluent for primary desalination, intercept macromolecular organic pollutants and soluble salts in percolate, reduce subsequent advanced treatment load of leachate treatment stations.

5. Chemical factory and electroplating wastewater reuse

Treat low-concentration chemical mixed wastewater and electroplating rinse water, remove heavy metal ions and soluble salts, produce water for workshop cleaning, reduce factory wastewater discharge and pass environmental monitoring inspection smoothly.

FAQs

Q1: Which size membrane housings are compatible with PROC10 standard RO membrane? Can it replace old ordinary 8-inch RO membranes directly?

A1: The PROC10 standard RO membrane features a universal 8040 outer dimension, compatible with all standard 8-inch membrane pressure vessels available on the market, including fiberglass and stainless steel housings. It can directly substitute all conventional 8-inch standard RO elements without modifications to pipelines, brackets or sealing fittings, making it ideal for renovation projects of outdated water treatment systems.

Q2: How often does chemical cleaning need to be performed for PROC10 under high organic wastewater conditions?

A2: Under high-organic working conditions such as printing, papermaking and biochemical wastewater, the chemical cleaning cycle of PROC10 standard membrane is about 4 to 6 months, while ordinary standard RO membranes require cleaning every 1 to 2 months. The widened 34mil spacer and anti-adhesive membrane surface greatly slow down pollutant accumulation, effectively extending cleaning intervals and cutting operational labor costs.

Q3: What is the minimum operating pressure of PROC10? Can it produce stable water output in low-pressure systems?

A3: The minimum stable operating pressure of the PROC10 standard RO membrane is 1.6MPa, with a rated test pressure of 1.55MPa. It can sustain stable rated water production in low-pressure circulation systems without high-pressure pumps, suitable for medium and small wastewater reuse projects with limited pump power configurations.

Q4: What cleaning chemicals are allowed for PROC10? Are there concentration limits for acid and alkaline cleaning?

A4: Permitted cleaning agents include citric acid pickling solution, sodium hydroxide alkaline solution and sodium hypochlorite biocide. The allowable cleaning pH range is 1–13, with acid concentration ≤3% and alkali concentration ≤5%. Continuous soaking time should not exceed 2 hours to prevent damage to the polyamide membrane separation layer.

Q5: Can the permeate water from PROC10 standard membrane be directly reused for production? Is post-filter equipment required?

A5: PROC10 delivers a salt rejection rate up to 99.75%, and its permeate water can be directly applied to factory workshop cleaning, circulating water replenishment and green irrigation. If customers require ultra-pure water for electroplating or electronic manufacturing, secondary RO membranes or EDI equipment shall be equipped as post-treatment polishing filtration units.

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