Breakthrough in Solid Waste Treatment Technology: Jiuwu Hi-Tech Shares Mature Expertise in Waste Reduction and Resource Recovery

Recently, the State Council issued the "Solid Waste Pollution Prevention and Control Action Plan". The document emphasizes the need to strengthen resource reduction in industrial solid waste, vigorously promote green design, support enterprises in upgrading production  processes and equipment, implement refined management in industrial production, and reduce solid waste generation intensity.

As a leading enterprise in China's ceramic membrane industry, Jiuwu Hi-Tech, leveraging its years of accumulated solid waste treatment technology and rich experience in successful projects, has precisely positioned itself in the industrial by-product gypsum (titanium gypsum, phosphogypsum, etc.) remediation sector. Through innovative R&D of core technologies such as source reduction of titanium gypsum and preparation of high-quality building gypsum, as well as purification and modification of phosphogypsum and preparation of green building materials, combined with coupled process upgrades, it has successfully transformed both titanium gypsum and phosphogypsum, two notoriously difficult-to-treat solid wastes, into high-value-added building materials. This breakthrough addresses the pollution problem caused by the stockpiling of waste gypsum from the titanium dioxide and phosphate chemical industries at their source, effectively curbing ecological degradation and demonstrating the company's technological strength and industry responsibility in the field of industrial solid waste treatment.

Technical Breakthrough: Setting the Benchmark in Waste-to-Resource Conversion

The triple dilemma of "difficult storage, heavy pollution, and low utilization" of titanium gypsum has become a common problem in the industry. The gypsum products produced by traditional technology are of poor quality and cannot reduce the by-products of gypsum, making it difficult to achieve large-scale application. The industry urgently needs a low-cost and high-efficiency resource utilization solution.

Jiuwu Hi-Tech, leveraging nearly 30 years of experience in membrane technology and supported by provincial-level or higher R&D platforms such as the National-Local Joint Engineering Research Center for Inorganic Membranes, has precisely targeted the niche market of titanium gypsum treatment. With its mature experience in industrial fluid separation and waste acid treatment, the company deeply integrates membrane separation technology with the needs of solid waste resource utilization, establishing a development path of "technology innovation-driven and full-chain service support," and focusing on the core business of titanium dioxide industry: reduction and resource utilization of titanium gypsum.

Currently, this technology has been implemented in leading titanium dioxide enterprises in Jiangsu, Shanghai, Sichuan and other regions. In a project at a titanium dioxide plant in Jiangsu, it reduces gypsum by-product output by 250,000 tons annually, increases ferrous sulfate output by 30,000 tons, increases titanium dioxide production capacity by 500 tons, and saves 120,000 tons of neutralizing agents. It can create 10 million yuan in value for the customer every year.

Dual-Driving Force: Membrane Integration Innovation & TiO₂ Production

Leveraging the technological advantages of the company's independently developed acid-resistant ultrafiltration and nanofiltration membranes—which offer high separation accuracy and stable performance even at sulfuric acid concentrations below 25%—a targeted treatment system has been constructed. This system efficiently separates ferrous and soluble titanium ions from acidic wastewater in the titanium dioxide industry, achieving a metal ion removal rate of over 95%, which is then recovered into the titanium dioxide production system. This not only improves the product yield for titanium dioxide companies but also enhances the grade of by-product gypsum, reduces the free water content of the gypsum, and decreases the use of neutralizing agents, thus bringing economic value to companies while reducing their titanium gypsum production.

Collaborative Synergy: Industry-Academia-Research for Technology Commercialization

This technology was certified as "internationally advanced" by an expert panel in 2021. It has successfully passed scaled-up pilot testing, and the complete set of equipment has been included in the "National Catalogue of Advanced Applicable Technologies and Equipment for Industrial Resource Comprehensive Utilization (2021)". Furthermore, it was recognized as a "Nanjing Innovative Product", laying a solid foundation for industrial-scale promotion. Notably, the "First Complete Set of Equipment for Titanium Gypsum Resource Utilization Technology" has been successfully selected into the Jiangsu Province's "Three Firsts & Two New" list (encompassing the First Set of Major Technical Equipment, the First Batch of Key New Materials, the First Edition of High-End Software, New Technologies, and New Products).