Step 1: Evaluate Suitability for MBR Treatment

First, determine if MBR is a viable technical option for your specific wastewater. MBR is not universally applicable, and failure to do this can lead to severe, irreversible membrane fouling.

• Unsuitable Wastewater: Wastewater with high levels of oils, greases, surfactants, or sticky substances is generally not suitable for direct MBR treatment without extensive pretreatment. Common examples include:
  • Emulsified oils, grinding/cutting/quenching fluids
  • High-surfactant wastewater (e.g., from detergents)
  • Oily or petroleum-based wastewater
• Required Action: If your wastewater falls into these categories, you must implement effective pretreatment (e.g., dissolved air flotation for oil removal, coagulation) before it enters the MBR. After successful pretreatment, you can proceed with the rest of the selection process.

Step 2: Define Core Technical Parameters

Once feasibility is confirmed, define the membrane’s core technical parameters.

• Membrane Pore Size:  Ultrafiltration (UF) (0.01-0.04 μm) offers superior effluent quality but has lower flux and higher costs, used only when very high-quality effluent is required.
• Membrane Flux: The most critical parameter for sizing your system.
  • Definition: Flow rate per unit area (L/m²·h, or LMH). The stable, long-term flux, not the initial peak, is the key design value.
  • Industrial Guidelines: Industrial wastewater has lower flux design guidelines compared to municipal sewage, typically 10–15 LMH. A conservative rule of thumb is to use about half the flux value of a municipal application. For municipal reference, design fluxes are often 15–25 LMH.
  • Impact on System Size: Required total membrane area is calculated as:   Total Membrane Area (m²) = [Design Flow (m³/d)] / [Flux (LMH) × Daily Operating Hours (h)]

Using a lower flux means you will need a larger membrane area, which increases the initial capital investment for the equipment. This is a fundamental trade-off between upfront cost and long-term operational stability.

Step 3: Select Membrane Material and Configuration

Your choice of material and physical configuration depends heavily on the wastewater’s characteristics and your operational priorities.

Material Selection

• PVDF (Polyvinylidene fluoride): The industry standard due to its excellent chemical resistance (allowing frequent cleaning) and good mechanical strength. Commonly chemically modified to improve its inherent hydrophobicity (water-loving property).

• Hollow Fiber (HF) Membranes
  • Pros: Highest packing density (small footprint) and low capital cost.
  • Cons: Susceptible to breakage/fouling, requiring finer pre-treatment.
  • Ideal For: Large-scale municipal plants or industrial applications with well-pretreated, low-fouling wastewater.

A simple guide is that for most industrial wastewater, Flat Sheet membranes are often the preferred choice for their fouling resistance and reliability.

Step 4: Supplementary Evaluation Criteria

Beyond the core technical parameters, evaluate the broader ecosystem of the product.

• Vendor Qualification and Support: Look for a proven track record with similar wastewater. Evaluate the comprehensiveness of technical support (design, commissioning, training) and the availability of local service for maintenance.
• Energy Costs: MBR operation, particularly aeration to scour the membranes, is energy-intensive. Focus on energy consumption per unit of water produced (kWh/m³) as a more meaningful metric than flux alone.
• Lifecycle Costing (LCC): Evaluate the Total Cost of Ownership, not just the initial purchase price. This includes installation, cleaning chemicals, energy, membrane replacement (every 5-8 years for quality membranes), and other consumables.

Step 5: Make the Final Decision

The final choice often involves trade-offs. The diagram below summarizes the entire selection process:

The selection process requires a holistic, multi-dimensional approach. Key final considerations include:

• Match the membrane to the task: For challenging industrial applications, prioritize robust anti-fouling characteristics over minimal upfront cost.
• Consider total cost of ownership (LCC): A cheaper membrane that requires frequent cleaning or early replacement is not economical in the long run. Don’t choose the cheapest MBR.
• Consult reputable vendors: Work closely with suppliers who have a proven track record with your specific type of industrial wastewater.

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Submerged MBR Membrane NM-RMBR-1520

Submerged MBR Membrane NM-RMBR-1520

Model: NM-RMBR-1520
Size (LxWxH, mm): 571 × 45 ×1535
Membrane area (m2): 20
Hollow fibers inside and outside diameter (mm): 1.0 / 2.2
Design Flux (L / h): 200-500
Working pressure (KPa): 10-50
Operating temperature (° C): 5-45
Work PH: 1-10
Hollow fibers: reinforced PVDF

 

Description:

Membrane bioreactor (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment

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Membrane Bioreactor NM-RMBR-1010

Membrane Bioreactor 

Model: NM-RMBR-1010
Size (LxWxH, mm): 571 × 45 ×1100
Membrane area (m2): 10
Hollow fibers inside and outside diameter (mm): 1.0 / 2.2
Design Flux (L / h): 150-200
Working pressure (KPa): 10-50
Operating temperature (° C): 5-45
Work PH: 1-10
Hollow fibers: reinforced PVDF

 

Description:
Our membrane bioreactor (MBR) is very high quality and reasonable price, which is combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment

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Submerged MBR Membrane NM-RMBR-1530

Submerged MBR Membrane NM-RMBR-1530

Model: NM-RMBR-1530
Size (LxWxH, mm): 1250 × 30 ×2000
Membrane area (m2): 30
Hollow fibers inside and outside diameter (mm): 1.0 / 2.2
Design Flux (L / h): 300-750
Working pressure (KPa): 10-50
Operating temperature (° C): 5-45
Work PH: 1-10
Hollow fibers: reinforced PVDF

 

Description:

Membrane bioreactor (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment

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Submerged Membrane Bioreactor

Hinada Top Brand and Quality MBR Membrane, with 3 years warranty. 

Submerged Membrane Bioreactor Quotation for your project please contact with us 

Membrane Element
Model: NM-RMBR-1520
specifications
Size (LxWxH, mm): 571 × 45 ×1535 (the length can be customized)
Membrane area (m2): 20
Hollow fibers inside and outside diameter (mm): 1.0 / 2.2
Design Flux (L / h): 20-50
Working pressure (KPa): 10-50
Operating temperature (° C): 5-45
Work PH: 1-10
Hollow fibers: reinforced PVDF

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Founded in 2012 and located in Guangzhou, China, Hinada Water Treatment Tech Co., Ltd. has existed with only one focus: water and wastewater treatment solutions. With over 13 years of experience in this industry and with a particular focus on membrane technology, we remain committed to helping food manufacturers with their wastewater problems.

Challenges in the Treatment of Wastewater Generated by Food Processors

Food processing plants generate wastewater that is highly variable and complex. It tends to contain high amounts of organic substances, suspended matter, fats, oils, grease, proteins, starches, and detergents. It is these properties that make the treatment of wastewater from food processing plants rather complex.

One is that it has a substantial organic level that, if not treated well, can easily decrease oxygen levels within water bodies. Another is that it has fat and oil that, if it passes through regular treatment processes, can easily clog these processes, decreasing efficiency. Another is that it requires a stable production process that can provide a consistent level of effluent.

Conventional treatment technologies fail to satisfy the above-stated criteria successfully. This is why the use of an advanced membrane filtration technique, known as the ultrafiltration membrane, has become a favorite in contemporary wastewater treatment technologies for the food industry.

How PVDF Membranes Handle High Organic Load and Fats

Principle of membrane filtration: This method of filtration involves the passage of water through a semipermeable membrane with the retention of suspended matter. We produce hollow fiber membranes based on modified PVDF ultrafiltration membrane and PVC materials, intended for use in wastewater with challenging conditions.

The PVDF ultra-filtration membrane finds particular applications in processing food industry wastewater due to its excellent mechanical properties, hydrophilicity characteristics, and stability in water quality. The membranes have been tested successfully in the separation of suspended matter, organic particles, and colloids in wastewater with high organic content.

In the field of applications relating to fats and oils, membrane filtration prevents the fats and oils from passing through, along with the purified water. In the context of the membrane bioreactor (MBR) process, the UF membrane helps to reap the benefits from the biological processes in eliminating contaminants from the wastewater. The ultrafiltration membranes ensures that the purification requirements are met irrespective of the changes in the incoming factors.

Case-Based Applications in the Food Industry

Meat Processing Plants

The types of meat industry wastewater may include blood, fat, proteins, and suspended materials. The use of membrane technologies results in the effective retention of solids, thus permitting more efficient biological processes. The PVDF ultrafiltration membrane enables successful treatment and the achievement of effluent quality suitable for discharge or subsequent treatment.

Bakery and Grain-Based Food Establishments

Bakeries include waste generation that has high starch content, flour particles, and organic matters. The fine particles in this waste can be challenging to separate using normal sedimentation processes. Membrane filtration has accurate separation properties. For instance, it separates solid particles in suspension, separating clean water in the process. Ultrafiltration membranes are used in such processes to boost efficiency.

Ready to Eat Food Processing Plants

Ready-to-eat food plants are often faced with complex wastewater streams originating from cooking, washing, and sanitizing operations. These streams differ greatly in composition and amount. Membrane technologies are flexible and efficient in changing operating conditions. The use of the PVDF ultrafiltration membrane allows a compact system with a consistent effluent quality even in varying influent flow rates.

Why Choose Hinada for Food Industry Wastewater Treatment

We are one of the most prominent submerged MBR membrane and membrane filtration systems producers in mainland China. At most projects, we can supply a completely integrated solution, including consultation, design, and commissioning, to meet all requirements for water and wastewater applications.

Our membrane manufacturing plant, initiated in the year 2012, produces high-quality hollow fiber membranes through rigorous quality control procedures like flow rate testing, bubble point testing, and microscopic analysis. Knowing the practical difficulties encountered in the food processing industry, having rich industry experience in the treatment of wastewater.

The corporate culture of Industrious, Integrity, Professional, and Learning propels the pursuit of excellence and customer satisfaction. In identifying quality reliability, affordability, and customization, we empower clients to solve the wastewater problems of the food industry with the use of a PVDF ultrafiltration membrane.

Owing to the increasing scarcity of clean water and tougher environmental regulations, it has become mandatory for the food processing sector to treat wastewater efficiently. The intense wastewater and higher levels of fats have promoted membrane filters as a reliable and trustworthy technology for the food processing sector. The uf membrane is an important component in the wastewater treatment system because of its efficiency and malleability.

What makes us a partner of choice in the food industry for our expertise in wastewater treatment solutions.

Need a trustworthy solution for wastewater treatment from a restaurant or the food sector? Call us at Hinada for personalized membrane technology systems.

FAQs

1. Why is membrane filtration important in food industry wastewater treatment?

Membrane filtration has been established to yield good separation of suspended solids and organic materials independent of variations in the quality of wastewater.

2. How does a PVDF ultrafiltration membrane handle high organic loads?

This functions as a barrier that allows organic particles and solids to accumulate while letting only treated water go through for the best possible biological treatment.

3. Can membrane systems be used for different types of food processing wastewater?

Yes, the membrane systems handle this in a very flexible and reliable way when it comes to water from meat processing, bakeries, and ready-to-eat food plants.

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1000m3/D Containerized UF System for Drinking Water

Containerized UF System for Drinking Water

UF Membrane pore size: 0.01um
Energy saving, Backwashable
Low Investment
Good output water quality
Containerized easy installation and Shipping.

 

UF System Including: UF Membrane, module, Valves & Meters, Control System, Pipes and Fitting, 304 stainless, Skid Frame, Preccision Filter, Raw water pump, Backwash pump

 

Description:
Containerized Ultrafiltration System.The capacity is 1000m3 per day. It integrates the entire water treatment process into a single, standardized shipping container.

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Specialized chemicals are dosed to break the stable oil emulsion. This causes dispersed oil droplets and suspended solids to coalesce into larger, separable clusters called “flocs.” Heart of the process: Supersaturated water is released, creating a dense cloud of micro-bubbles.

These bubbles act as targeted carriers, adhering to the flocs The bubble-floc aggregates become lighter than water and float upward en masse, creating a distinct sludge layer on the surface. It’s a rapid, efficient, and visible “snow-globe” effect.

A slow-moving scraper skims the concentrated sludge from the surface. What remains is clarified water, free from the vast majority of fats, oils, and suspended solids, ready for the next stage of treatment.

The entire process is a perfect combination of physical and chemical principles—efficient, stable, and clearly observable.

Hinada Enable sustainable water recovery through advanced process engineering. Hinada— Engineering Purity in Industrial Water.

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The answer is right here. This is our advanced Containerized Ultrafiltration System.The capacity is 1000m3 per day. It integrates the entire water treatment process into a single, standardized shipping container.

What you get is more than just equipment; it’s a plug-and-play water treatment plant, ready for rapid deployment,  Raw water is first pressurized by the feed pump. It then sequentially passes through the disc filter and bag filter, effectively removing suspended solids and larger particles. Next, the water is polished by the cartridge filter, for deeper pre-treatment.

Finally, the core of the process – water enters the Ultrafiltration membrane modules. With pores at the microscopic level, they efficiently separate colloids, bacteria, viruses, and macromolecules, producing a consistent stream of highly purified water for your most demanding applications.

To ensure long-term, stable performance, the system features a fully automatic backwash system, integrated with inline chemical cleaning. This easily manages membrane fouling and restores flux. Furthermore, we’ve included a convenient Offline CIP circuit with a dedicated pump. For intensive maintenance, you can perform a highly efficient, isolated cleaning of the membranes without complex disassembly, drastically reducing downtime and operational costs.

From feed water to product, from intelligent backwash to easy maintenance—this containerized ultrafiltration system is your all-in-one water treatment solution. It means a smaller footprint, faster deployment, and a lower total cost of operation. Hinada — Advanced Water Treatment for Industrial Excellence.

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