Integrated Ultrafiltration Water Purification Equipment for Industrial Use

Integrated Ultrafiltration Water Purification Equipment for Industrial Use

Integrated ultrafiltration water purification equipment is a standardized packaged water treatment system built for centralized industrial water purification and wastewater recovery projects. As a reliable modular liquid filter, this integrated device can be matched with Industrial Skid Mounted Ultrafiltration Equipment, core Tubular Ultrafiltration Membrane and standard Ultrafiltration equipment to form complete graded filtration solutions for clean water preparation and sewage reuse. This article elaborates the structural composition, filtration mechanism, standardized technical indexes, strict manufacturing quality standards and multi-industry application scenarios of integrated ultrafiltration water purification equipment, helping global purchasers select matched ultrafiltration systems according to raw water quality and actual water production demand.

1. Product Introduction

Integrated ultrafiltration water purification equipment refers to the fully pre-assembled skid-mounted ultrafiltration system that integrates membrane modules, water pump assemblies, pipeline manifolds, backwashing units, CIP chemical cleaning tanks and PLC automatic control cabinet on an integral metal frame. Different from scattered self-matched ultrafiltration components, all internal pipelines, valves, detection instruments and electrical programs of this integrated equipment are calibrated and debugged in our factory workshop before delivery, realizing one-stop installation after customers connect water pipes and power supplies on site.

Our product line provides three matching combinations for integrated ultrafiltration water purification equipment. For conventional municipal water supply and low-fouling industrial raw water treatment, users can choose the finished Ultrafiltration equipment as the main body of the integrated system; for large-scale factory wastewater centralized treatment projects, the customized Industrial Skid Mounted Ultrafiltration Equipment with expanded membrane layout is the preferred option; when dealing with oily wastewater, electroplating wastewater and high-solid waste liquid with severe fouling risks, we will configure anti-blocking Tubular Ultrafiltration Membrane as the core filter medium inside the integrated ultrafiltration water purification equipment to improve the system’s anti-pollution capacity.

The overall frame of integrated ultrafiltration water purification equipment adopts 304 stainless steel welded structure, with good corrosion resistance and structural stability, adapting to indoor production workshops, outdoor sewage stations and open-air water treatment areas. The internal membrane components mainly use food-grade modified PVDF material, with stable interception performance for colloids, bacteria, suspended solids and macromolecular organics. The built-in automatic control system supports fully unmanned operation: the system automatically triggers backwashing according to running time or pressure difference to flush membrane surface pollutants, and supports manual one-key start of chemical cleaning to recover membrane flux when performance declines.

The integrated design greatly reduces the threshold of water treatment system construction for small and medium-sized enterprises. There is no need for users to design pipeline layout, select supporting pumps and write control programs separately. The integrated ultrafiltration water purification equipment can be directly connected with subsequent RO reverse osmosis equipment to build a full set of pure water production process, which is widely recognized by industrial customers around the world for its convenience and stable operation effect.

2. Working Principle

The core working mechanism of integrated ultrafiltration water purification equipment is pressure-driven cross-flow membrane sieving separation. After raw water is pressurized by the feed pump to the rated working pressure of 1.0–4.0 bar, raw water flows tangentially along the surface of the ultrafiltration membrane components inside the integrated frame at a certain flow velocity.

Water molecules, dissolved inorganic salts and small-molecule soluble substances pass through the micropores of the membrane layer smoothly to form qualified permeate clean water, which is collected and transported to the water storage tank through the water production pipeline. Particles, colloids, microbial flora, organic macromolecules and other pollutants larger than the membrane molecular weight cutoff are intercepted on the membrane surface. The high-speed cross-flow of raw water continuously scours the membrane surface, slows down the accumulation of dirt, and the intercepted pollutants are discharged out of the system along with the concentrated water flow.

Two automatic maintenance modes are solidified in the PLC program of integrated ultrafiltration water purification equipment to ensure long-term stable operation. First is automatic regular backwashing: using the produced clean water to reversely permeate the membrane layer to peel off loose surface dirt, which runs automatically without manual intervention in daily operation. Second is periodic CIP chemical cleaning: when backwashing cannot restore the standard water yield, acid and alkali medicaments are circulated through the matched cleaning pipeline to dissolve inorganic scale and organic biofilm attached to the membrane. If the integrated equipment is equipped with tubular membrane elements, physical sponge ball cleaning can also be added as an auxiliary cleaning method to cope with high-fouling wastewater working conditions.

3. Technical Parameters 

3.1 Core Membrane Matching Parameters

1. Main membrane material: Modified PVDF (standard configuration); optional PES for high hygiene requirements

2. Optional MWCO: 30 kDa / 50 kDa / 100 kDa according to water quality requirements

3. Conventional design flux: 30–85 LMH (adjusted by raw water pollution concentration)

4. Service temperature range: Continuous operation 5–45℃

5. pH tolerance: Continuous operation pH 2–11; chemical cleaning tolerance pH 1–13

3.2 Whole Machine Operating Parameters

1. Optimal working pressure: 1.5–3.0 bar

2. System overall water recovery rate: 82%–93%

3. Permeate water turbidity: Stably lower than 0.1 NTU

4. Bacteria interception rate: ≥99.99%

5. Outlet water SDI value: ≤3, meeting pretreatment standards for reverse osmosis equipment

3.3 Integrated Equipment Configuration Parameters

1. Frame material: 304 stainless steel integrated skid support

2. Control system: PLC + local touch screen automatic control, with fault alarm function

3. Automatic backwash cycle: Adjustable from 15 min to 60 min

4. Recommended chemical cleaning cycle: 2–6 months based on actual inlet water pollution level

5. Customizable water production tonnage: 1T/h, 5T/h, 15T/h, 50T/h, 100T/h and other standard models

4. Product Quality & Manufacturing Standard

All integrated ultrafiltration water purification equipment implements full-process quality inspection during production and assembly. Before membrane loading, each batch of hollow fiber membranes and tubular membrane elements must pass the bubble point integrity test to eliminate defective products such as fiber breakage and membrane pore leakage, ensuring stable pollutant interception capability.

The welding of stainless steel frames and internal pipelines is completed by professional argon arc welding process, and all wetted parts are made of anti-corrosion materials to avoid secondary pollution of water quality. After the overall assembly is completed, each set of integrated equipment will complete FAT factory acceptance test in the factory: simulate actual water intake working conditions to detect water yield stability, pressure difference changes, valve action and automatic program operation logic, and deliver products only after all test indicators are fully qualified.

Our integrated ultrafiltration water purification equipment has obtained ISO9001 quality management system certification, CE safety certification and NSF61 drinking water material safety certification. Under standardized operation and regular maintenance, the service life of built-in PVDF membrane components can reach 5–8 years, effectively reducing the long-term replacement cost and maintenance cost for enterprise users.

5. Application Fields

Combined with the integrated plug-and-play advantage, this ultrafiltration purification equipment is widely applied in multiple industrial and municipal water treatment scenarios:

1. Factory pure water pretreatment: Remove colloids, suspended solids and microorganisms in raw water to protect subsequent reverse osmosis membrane elements and extend RO service life

2. Industrial wastewater reuse: Carry out advanced tertiary treatment for biochemical wastewater of factories to realize wastewater reuse for workshop flushing, green irrigation and cooling water replenishment

3. Municipal surface water purification: Treat river water, lake water and reservoir water to produce qualified factory self-supplied domestic water and production water

4. Food & beverage production water: Purify process water for beverage brewing, dairy processing and juice production to remove bacteria and impurities without damaging nutrients

5. Pharmaceutical factory purified water preparation: As the front-end filtration unit of water for pharmaceutical production to remove pyrogen and microbial pollutants

6. Printing, electroplating and chemical wastewater primary filtration: Pre-treat industrial wastewater to reduce pollutant concentration for subsequent advanced treatment

FAQ Section 

Q1: What are the core advantages of integrated ultrafiltration water purification equipment compared with separately purchased scattered components?

A: Integrated equipment completes assembly, pipeline layout and program debugging in the factory. Customers only need to connect water pipes and power supply on site, which saves construction cycle, matching cost and professional operation threshold, with lower overall system failure rate.

Q2: Can integrated ultrafiltration water purification equipment remove salt substances and reduce water TDS value?

A: Ultrafiltration only intercepts particulate pollutants and microorganisms, dissolved salt ions can freely pass through the membrane. If desalination treatment is required, this integrated equipment needs to be used as pretreatment matched with reverse osmosis systems.

Q3: How long is the normal service life of the internal membrane of integrated ultrafiltration equipment?

A: With automatic backwashing and regular chemical cleaning, standard PVDF membrane can run stably for 5–8 years. Replace the membrane when flux cannot be restored after complete cleaning or effluent turbidity rises abnormally.

Q4: Is it necessary to customize the configuration of integrated ultrafiltration equipment for different wastewater types?

A: Conventional hollow fiber membrane configuration is suitable for clean raw water and general sewage; oily and high-solids wastewater needs to be replaced with tubular ultrafiltration membrane as the core filter material for the integrated system.

Q5: Does the integrated ultrafiltration equipment support remote monitoring of operating data?

A: Standard configuration is local PLC automatic control; remote data viewing and fault reminding functions can be added through customized communication modules according to customer demands.

Q6: What failures are easy to occur if the integrated ultrafiltration equipment is not cleaned for a long time?

A: Membrane surface will accumulate dirt and biofilm, resulting in continuous attenuation of water production flux, rising system pressure difference, deterioration of effluent quality, and even irreversible membrane fouling and scrapping in serious cases.

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