Membrane Purification for Fermentation Broths

At present, China's biopharmaceutical industry widely faces the development dilemma of high separation and purification costs and low product added value, and the high cost of the purification stage has become the core bottleneck of industrial transformation and upgrading. In response to industry pain points, Jiuwu Hi-Tech, relying on its independently developed ceramic membranes, organic membrane materials and membrane integration processes, has built a full-process solution from fermentation broth clarification to product refining, providing core technical support for quality improvement, cost reduction and green upgrading of the bio-fermentation industry.

The Industry's Predicament: Conventional Separation Processes Shackle Industry Development

Most domestic biopharmaceutical enterprises still rely on conventional equipment such as plate-and-frame filters, vacuum drum filters, centrifuges and diatomaceous earth, combined with flocculation, heating and sedimentation processes to purify fermentation broth. Such processes are cumbersome and inefficient, with problems including poor filtrate clarity and incomplete sterilization; the matching sterilizing filter sheets are prone to clogging and high consumable costs. Overall, there are three core shortcomings.

1. High material loss, low product yield

Centrifuges struggle to remove fine bacterial cells and colloids, plate-and-frame filtration easily causes filtrate re-turbidity, and target products are easily adsorbed and lost.

2. Persistently high energy consumption and production costs

The process relies heavily on evaporative dehydration with large steam consumption. Taking the conventional process in the MSG industry as an example, it suffers from low yield, many impurities and large wastewater volumes, with poor economics.

3. Difficult production control, high compliance pressure

Open operations require high manual input and are prone to material drip leakage and contamination; products are exposed to the outside, making it difficult to comply with pharmacopoeia quality standards.

Process Breakthrough: Integrated Membrane Combination Achieves Efficient Purification

Addressing the pain points of low impurity removal precision, high energy consumption, high cost and limited product purity in conventional bio-fermentation purification processes, Jiuwu Hi-Tech has innovatively launched a membrane integration combination process of microfiltration impurity removal + nanofiltration desalting and concentration, combined with ion exchange resin and evaporation crystallization refining stages, building an efficient, energy-saving and automated complete purification system that effectively breaks through the technical bottlenecks of conventional processes and balances quality improvement, cost reduction and efficiency gains.

The entire process is divided into three progressive core stages, with clear division of work and precise purification:

1. Ceramic Membrane Microfiltration Stage

Relying on high-precision inorganic membranes sintered from alumina and zirconia, it intercepts macromolecular impurities such as bacterial cells, colloids and proteins in the fermentation broth by cross-flow filtration, allowing only the clear liquid containing the target product to pass through, precisely completing primary impurity removal. The membrane has a stable structure and filtration precision suited to many types of fermentation broth.

2. Organic Membrane Nanofiltration Stage

It can remove inorganic salts and small-molecule impurities from the clear liquid at room temperature, while completing pre-concentration of the target product, replacing the conventional high-temperature pre-treatment evaporation process and greatly reducing steam consumption in the subsequent crystallization stage, with significant energy savings.

3. Ion Exchange Resin Deep Refining + Evaporation Crystallization

After dual-membrane pre-treatment, the feed has fewer impurities and higher concentration, greatly reducing resin load and material evaporation, ultimately producing high-purity products.

80% - Reduction in steam consumption

50% - Production cost savings

99%+ - Product purity

100% - Automated operation

This membrane integration process has been validated through implementation, with outstanding comprehensive advantages, providing an efficient and economical purification solution for the bio-fermentation industry. The complete equipment supports 100% automated operation, with stable quality and controllable energy consumption.

Core Advantages: Empowering Upgrading of the Biopharmaceutical Industry in an All-Round Way

The biopharmaceutical field is one of the earliest application fields for Jiuwu Hi-Tech, covering sub-sectors such as bio-fermentation, biopharmaceuticals, traditional Chinese medicine extraction and botanical extraction. Ceramic membranes feature corrosion resistance, high temperature resistance and high separation precision, and can be widely applied to the separation, purification and extraction of amino acids, antibiotics, organic acids and other substances.

Material performance: inherent advantages of inorganic ceramic membranes

The company's ceramic membranes offer core advantages of high temperature resistance, corrosion resistance, high flux, high strength, easy cleaning and a high degree of automation, suitable for pharmaceuticals, food, bio-fermentation and other industries. They can replace conventional inefficient, energy-intensive filtration and separation technologies, with multiple advantages including high precision, small footprint, energy saving and an improved production environment.

Operating efficiency: comprehensive leadership over conventional processes and organic membranes

Measured data shows that, compared with conventional processes, ceramic membrane ultrafiltration technology improves product yield by 5%-12%, with higher separation precision and less wastewater discharge. Its regeneration cost is only 1/5 to 1/10 of organic membranes, and its service life is 3 to 10 times that of organic membranes, with significant comprehensive economic advantages.

Fouling resistance and cleaning regeneration: industry-level technical accumulation

Addressing the industry challenge of membrane fouling in fermentation broth, the company has established a membrane fouling kinetics model and developed a dedicated cleaning and regeneration process, solving the problem of product degradation and inactivation. After optimizing the material washing method, membrane flux and fouling resistance are effectively improved, saving water, increasing efficiency and raising product yield.

Full-chain service capability: from materials to overall solutions

With a "new materials + overall solutions" model, the company has built a full-process technical system covering fermentation treatment, product refining and wastewater resource recovery. It also has full-chain self-development capability for organic membranes, breaking the import dependence on high-end separation membranes.

Customized development: dedicated processes for specific fermentation products

Relying on nanoscale precise membrane pore design, the company can customize dedicated separation processes for various fermentation products, effectively improving product yield and purity and shortening production cycles.

Benchmark Case: Ten Years of Stable Service, Validating Technical Strength

In 2012, a pharmaceutical enterprise in Xinjiang considered using ceramic membrane + nanofiltration membrane equipment in the filtration stage of antibiotics. As the company was initially unfamiliar with ceramic membrane equipment, it first ran a pilot test with one set of equipment; after the test data reached the expected indicators, it purchased multiple sets of Jiuwu Hi-Tech ceramic membrane + nanofiltration membrane equipment for fermentation broth filtration treatment.

Pain Points Addressed and Results

Yield leap - The purification process patent filed by the enterprise is environmentally friendly with no secondary pollution, and the effective ingredient yield in the finished product exceeds 98%.

Sharp reduction in manpower - After using ceramic membrane equipment, workshop staff dropped from 120 to 50, working in shifts, helping the enterprise reduce costs and increase efficiency.

Environmental compliance - The ceramic membrane + nanofiltration equipment operates in a fully enclosed state, thoroughly improving the previously dirty and disorderly site environment, with a major step up in cleanliness.

Lower energy consumption - According to Director Cheng of the workshop, the ceramic membrane + nanofiltration membrane filtration unit used for filtration and concentration of biological antibiotics has the advantage of reducing the high energy consumption and high cost caused by evaporative concentration.

Empowering with Membrane Technology, Moving Toward Green Intelligent Manufacturing

With years of accumulated membrane technology, mature integration processes and rich implementation experience, Jiuwu Hi-Tech precisely solves the industry problems of high consumption, low efficiency and low quality in conventional production. Relying on independently controllable core materials and customized solutions, the company continues to help bio-fermentation enterprises reduce costs, improve quality and cut emissions, empowering high-end and green upgrading of the industry with advanced membrane technology, and injecting lasting momentum into the high-quality development of China's bio-manufacturing industry.