Service Hotline

+8617792214459

Ten years of spring and autumn tempering craftsmanship, a drop of clean water meets DIEN

Smart water purification, endowing the source of life with the light of technology

Cooperative Partner

Professional water treatment equipment strength source manufacturer

Deeply cultivating the manufacturing of water treatment equipment, empowering enterprises for green development

Cooperative Partner

Cooperative Partner

COFCO Group

COFCO Group Food Production Water Solution | DIEN Water Filtration Equipment & Water Softening System Put into Operation


With rich experience in food industry water treatment and professional customization capability, Xi'an DIEN Water Treatment Equipment Co., Ltd. has tailored an exclusive water treatment solution for a production base of COFCO Group. Through the scientific combination of water filtration equipment and water softening equipment, it effectively solves the pain points of production water, helps COFCO Group achieve high-quality, green and large-scale production, and sets a benchmark case for water treatment cooperation in the food industry.

I. Project Overview

This cooperation project adopts one-stop full-process services including on-site survey, solution design, equipment customization, installation and commissioning, operation and maintenance training, and after-sales guarantee provided by Xi'an DIEN Water Treatment. The service target is a comprehensive production base under COFCO Group, covering multiple businesses such as edible oil pressing, grain deep processing and wine brewing. It features large water demand and strict water quality requirements, with distinct water quality standards for different production links. The core demand focuses on production water purification and softening treatment. Professional equipment is required to ensure qualified water for raw material cleaning, production processing, sterilization cooling, finished product testing and other links. The project deploys water filtration equipment and water softening equipment as the core, supporting by pretreatment, disinfection and other supporting systems, adapting to COFCO's production mode of graded water supply and recycled water reuse, and fully meeting the enterprise's green factory construction requirements. Since commissioning, the equipment has operated stably with qualified performance, successfully passing both environmental protection and food production acceptance, winning high recognition from COFCO's production management team and becoming an important bond for deepening strategic cooperation between the two sides.

DIEN Water Filtration Equipment

DIEN Water Filtration Equipment

II. Raw Water Quality Problems

Through on-site sampling, testing and working condition analysis by Xi'an DIEN's technical team, combined with the special water demand of COFCO Group's diversified production processes, the raw water of the base has several core pain points, which directly affect product quality, production efficiency and service life of equipment, and are inconsistent with COFCO's strict production standards and green development philosophy. The details are as follows:

Raw water contains excessive suspended solids and colloidal impurities sourced from surrounding water sources as well as dust and impurities generated during grain processing. Without filtration treatment, direct use for raw material cleaning will contaminate food ingredients, affect the purity and taste of edible oil, wine and grain products, and block production pipelines and equipment valves, increasing operation and maintenance costs. This is also the core reason why COFCO Group urgently needs water filtration equipment.

Raw water has high hardness and excessive calcium and magnesium ions, a common hard water problem in the food processing industry. If used directly in production, it is easy to form scale on the surface of boilers, sterilization equipment and heat exchangers, reducing heat exchange efficiency by 15%-20% and increasing energy consumption accordingly. It also accelerates equipment corrosion and shortens service life. In addition, it affects the emulsification stability of edible oil and the clarity of wine, causing fluctuations in product quality and failing to meet COFCO's finished product testing standards. Water softening equipment is urgently needed to solve the hard water problem.

Raw water contains trace organic matter, residual chlorine and peculiar smell, which will affect the flavor of sensitive products such as wine and dairy products, failing to meet the production water requirements of high-end products such as COFCO Great Wall Wine, and does not comply with food production hygiene specifications. Professional filtration equipment is required for deep removal.

Water quality fluctuates greatly affected by seasons and water supply, leading to obvious fluctuations in inlet water indicators. Conventional Water Treatment Equipment (Click to view equipment details) can hardly continuously adapt to COFCO's large-scale and multi-category production needs, easily causing production interruption and reduced product qualification rate, and cannot meet the enterprise's green production requirements of graded water supply and recycled water reuse.

III. Customer Requirements and Treatment Targets

Combined with the strict production standards of COFCO Group's core businesses such as grain processing, edible oil and wine brewing, as well as the enterprise's development needs of green production, cost reduction, efficiency improvement and compliant operation, the project defines the following core requirements and treatment targets to precisely match COFCO's production mode of graded water supply and recycled water reuse.

Core Requirements: 1. Deploy professional water filtration equipment to deeply remove suspended solids, colloids, organic matter, peculiar smell and residual chlorine from raw water, ensure the cleanliness of production water and adapt to the production needs of different product categories; 2. Equip high-efficiency water softening equipment to reduce raw water hardness, eliminate equipment scaling and corrosion problems, extend the service life of production equipment, and reduce operation, maintenance and energy consumption costs; 3. The system operates stably with simple operation and intelligent control, adapting to COFCO's large-scale production rhythm, meeting 24-hour continuous water demand without water supply interruption risk; 4. Equipment materials meet food-grade standards without secondary pollution, complying with food production hygiene specifications and HACCP system requirements; 5. The solution adapts to the enterprise's demand for graded water supply and recycled water reuse, improves water resource utilization, supports green factory construction and reduces environmental compliance pressure.

Treatment Targets: After treatment by water filtration equipment and water softening equipment, the effluent turbidity ≤0.5NTU, hardness ≤0.03mmol/L. Indicators such as suspended solids, organic matter and residual chlorine fully comply with GB 5749-2022 Hygienic Standard for Drinking Water and water quality requirements of the food processing industry. The system can run continuously and stably for 24 hours with stable water quality, adapting to the water demand of different production links of COFCO Group. The water resource reuse rate is increased to over 80%, helping the enterprise achieve a win-win of cost reduction, efficiency improvement and environmental compliance.

IV. Solution

Aiming at COFCO Group's production water pain points, water demand differences of diversified businesses and green production needs, Xi'an DIEN Water Treatment abandons generalized schemes and customizes an integrated solution of graded treatment and recycled water reuse with water filtration equipment and water softening equipment as the core. The whole process fits COFCO's production process to ensure qualified water quality, stable operation, energy saving and high efficiency. The specific solution is as follows:

Pretreatment Unit: Adopt combined process of multi-media filtration + activated carbon adsorption as the pre-treatment of water filtration equipment. It efficiently removes large-particle suspended solids, sediment and colloidal impurities in raw water, adsorbs organic matter, residual chlorine and peculiar smell in water, reduces raw water turbidity and pollution index, lays a foundation for subsequent filtration and softening treatment, effectively protects core equipment, extends equipment service life, and meets COFCO's strict requirements for water quality.

Core Filtration Unit: Deploy customized water filtration equipment specially, adopting food-grade ultrafiltration membrane components with high filtration precision. It can deeply intercept tiny suspended solids, colloids, microorganisms and macromolecular organic matter in raw water with a removal rate of 99.9%, ensuring clean and impurity-free effluent to adapt to links with extremely high water quality requirements such as wine brewing and dairy production. Meanwhile, a graded filtration mode is designed according to the water demand of different production links of COFCO to realize graded water supply, improve water resource utilization and conform to the enterprise's concept of recycled water use.

Core Softening Unit: Equip high-efficiency Water Softening Equipment (Click to view equipment details). Adopting food-grade ion exchange resin and fully automatic flow-type control valve, it efficiently removes calcium and magnesium ions in raw water through ion exchange technology, stably controls water hardness within the target range and eliminates equipment scaling. The equipment can automatically trigger the regeneration process according to water consumption without manual intervention, with regeneration accuracy up to ±5%, ensuring stable effluent hardness, adapting to the operation demand of water-related equipment such as boilers, sterilization equipment and heat exchangers, reducing energy consumption and operation and maintenance costs, and avoiding the impact of hard water on product quality.

DIEN Industrial Water Filtration Equipment

DIEN Industrial Water Filtration Equipment

Intelligent Control System: Equipped with full-automatic PLC control system, integrating online water quality monitoring, pressure protection, automatic backwashing, fault alarm and other functions. It can real-time monitor the operating status and effluent water quality of water filtration equipment and water softening equipment, give timely early warning for abnormalities without 24-hour on-duty personnel, greatly reduce labor operation and maintenance costs, adapt to COFCO's standardized and large-scale production management mode, and support remote operation and maintenance and data traceability to meet food production supervision requirements.

Disinfection and Reuse Unit: Add ultraviolet disinfection module at the rear end of filtration and softening treatment to avoid secondary pollution and ensure effluent complies with food production hygiene specifications. Design a recycled water reuse system, part of the treated qualified water is used for workshop floor flushing, greening irrigation, etc., to improve water resource utilization, help COFCO achieve green factory construction goals and conform to cleaner production concepts. Meanwhile, optimize the wastewater treatment process to ensure wastewater discharge meets standards and reduce environmental compliance pressure.

Full-process Service Guarantee: Xi'an DIEN arranges a professional technical team to be fully responsible for on-site survey, customized production, installation and commissioning of equipment, ensuring perfect adaptation between equipment and COFCO's production lines and graded water supply mode. It also provides comprehensive operation and maintenance training to guide workshop staff to skillfully operate water filtration equipment, water softening equipment and the whole system. Establish a 24-hour after-sales response mechanism to timely solve various problems occurring during equipment operation, guarantee uninterrupted water supply for production lines and fulfill the full-cycle service commitment.

V. Treatment Effect

After the commissioning of this Water Filtration Equipment (Click to view equipment details) and water softening equipment system, through 3 consecutive months of operation monitoring and third-party authoritative testing, all treatment effects have reached or even exceeded the preset targets, perfectly meeting COFCO's production needs and green development philosophy. The specific effects are as follows:

Stable Qualified Water Quality: After treatment by water filtration equipment, the effluent turbidity is stably controlled below 0.3NTU, and indicators such as suspended solids, organic matter and residual chlorine are fully up to standard. After treatment by water softening equipment, the effluent hardness remains steadily below 0.02mmol/L, fully meeting the water demand of COFCO Group in edible oil, wine, grain processing and other links, effectively improving product purity and taste and helping the enterprise increase the finished product qualification rate.

Reliable Equipment Operation: Water filtration equipment and water softening equipment operate synergistically to realize 24-hour continuous and stable water supply without supply interruption or water quality fluctuation, adapting to COFCO's large-scale production rhythm. The equipment operation failure rate is lower than 1%, with stability far above the industry average level. The fully automatic regeneration and backwashing function greatly reduces equipment maintenance frequency and labor operation and maintenance costs.

Remarkable Cost Reduction and Efficiency Improvement: Water softening equipment thoroughly eliminates equipment scaling, increases boiler heat exchange efficiency by 19% and reduces energy consumption by 16%, saving a large amount of energy cost for COFCO every year. The service life of equipment is extended by 3-5 years, reducing equipment replacement and maintenance costs. The graded water supply and recycled water reuse system increases the water resource reuse rate to 82%, further saving water resource costs and meeting the enterprise's development demand for cost reduction and efficiency improvement.

Green and Compliant Operation: The whole system causes no secondary pollution of wastewater, wastewater discharge fully meets environmental protection standards, and water resource utilization is greatly improved. It helps COFCO practice the concept of cleaner production, consolidate green factory construction achievements, smoothly pass various inspections by environmental protection departments, meet food production hygiene specifications and HACCP system requirements, and further enhance corporate brand image.

Strong Adaptability: Water filtration equipment and water softening equipment adopt modular design, which can be flexibly expanded and optimized according to COFCO's capacity upgrading and product category adjustment to meet long-term development needs. It also adapts to the production mode of graded water supply and recycled water reuse, laying a foundation for further in-depth cooperation between the two parties.

VI. Customer Feedback

The person in charge of production management of COFCO Group spoke highly of this cooperation and treatment effect: "The solution provided by Xi'an DIEN Water Treatment is highly professional, accurately capturing the core water pain points in our food processing. The customized water filtration equipment and water softening equipment run stably with simple operation, perfectly adapting to our production mode of graded water supply and recycled water reuse. The produced water quality fully meets the strict production standards of our different product categories." The person in charge further stated: "Since the equipment was put into use, our product qualification rate has been significantly improved, equipment scaling has been completely solved, and energy consumption and operation and maintenance costs have been greatly reduced. It not only guarantees product quality, but also achieves the dual goals of cost reduction, efficiency improvement and environmental protection, fully conforming to COFCO's philosophy of Quality First & Green Development. The technical team of Xi'an DIEN responds timely and provides thoughtful services with high efficiency and professionalism throughout solution design, installation and commissioning, as well as operation and maintenance training, fully demonstrating its strength in the field of food industry water treatment. It is a trustworthy long-term partner for us, and we will continue to deepen cooperation in the future to jointly promote the high-quality and green development of the food industry."

Xi'an DIEN Water Treatment has been deeply engaged in the industrial water treatment field for many years, focusing on the R&D, customization and full-process service of water filtration equipment and water softening equipment. It focuses on the production water needs of food, wine brewing, grain and oil processing and other industries, creates exclusive water treatment solutions combined with industry pain points and compliance requirements. With core technology, strict quality control, perfect after-sales service and localized rapid response capability, it provides professional water treatment services for many large enterprises, accumulates rich practical experience in the food industry, and has become a trustworthy brand in the field of industrial water purification in Northwest China. If your enterprise (especially industries with strict water quality requirements such as food, grain and oil, wine brewing) is faced with problems such as substandard production water, large water quality fluctuations, equipment scaling and low water resource utilization, and needs customized exclusive solutions for water filtration and water softening, welcome to contact Xi'an DIEN Water Treatment. We will provide free on-site survey, water quality testing, customized solution design and accurate quotation. With high-quality water filtration equipment, water softening equipment and full-process services, we will help your enterprise achieve high-quality, green and efficient production and escort the high-quality development of your enterprise.