Sinokle: Advanced Oily Wastewater Solutions for Lithium Battery Industry
1. Background of Oily Wastewater
Amid the global wave of energy transition and green technology revolution, lithium batteries serve as the core power source driving the future. The cleanliness and sustainability of their production processes have increasingly become a focal point of industry and social attention. Lithium battery manufacturing, especially key processes such as electrode preparation, electrolyte injection and equipment cooling, inevitably generates oily wastewater with complex compositions and high treatment difficulty.
This type of wastewater contains emulsified oil, mineral oil, organic solvents and trace metal impurities. Improper treatment will pose severe challenges to the ecological environment and the sustainable development of enterprises.
Faced with this common industry challenge, adhering to our philosophy of "Empowering Clean Production with Technology, Safeguarding Lucid Waters and Lush Mountains", we have launched a tailor-made high-efficiency oily wastewater treatment system solution for the lithium battery industry, escorting your green manufacturing journey.
2. Key Treatment Challenges
Oily wastewater from lithium battery production typically features the following characteristics:
• Complex oil states: Containing free oil, dispersed oil and highly stable emulsified oil, which are difficult to separate completely with traditional methods.
• Diverse compositions: In addition to oil and grease, it is often accompanied by N-Methyl-2-pyrrolidone (NMP), binders, conductive agents, and trace metal ions such as lithium, cobalt and nickel.
• Stringent discharge standards: Must meet the rigorous requirements for petroleum indicators specified in the Emission Standard for Pollutants from Battery Industry (GB 30484) and local environmental protection regulations.
• Demand for water resource reuse: Driven by water conservation, consumption reduction and circular economy, the treated water must comply with relevant quality standards for reuse.
3. Sinokle's Treatment Process
3.1 High-Efficiency Pretreatment and Separation Technology
Precision separation: Integrating hydrocyclone separation and high-efficiency dissolved air flotation (e.g., CDFU) units, it efficiently removes most free oil and suspended solids, reducing the load for subsequent processes.
3.2 Advanced Purification & Membrane Technology Application
Anti-fouling membrane design: Proprietary membrane materials and flow channel design greatly alleviate membrane fouling caused by specific pollutants in lithium battery wastewater, extend cleaning cycles and membrane service life, and lower operational costs.
3.3 Deep Oil Removal via Coalescing Filtration
When oily acidic water flows through the specially designed coalescing filter element, the coalescing media inside the element (usually oleophilic and hydrophobic or specially treated materials) force tiny oil droplets (even some emulsified oil droplets) to collide and coalesce, gradually forming larger oil droplets.
Due to the density difference between oil and water and the change in surface tension, the enlarged oil droplets quickly float up to the top of the container by virtue of gravity difference in subsequent flow or a dedicated separation chamber, thus achieving efficient oil-water separation.
3.4 Resource Recovery
• Oil recovery: Excellent waste oil recovery effect with low water content, bringing direct economic benefits.
• Water resource reuse and value excavation: The product water after advanced treatment features superior quality, which can be directly reused in non-critical processes such as cooling and cleaning, significantly reducing the consumption of fresh water.
3.5 Intelligent Management
Automatic operation: The entire system is controlled by PLC or DCS with fault early warning and remote operation and maintenance functions. It ensures stable and efficient treatment processes, and significantly reduces manual intervention and operational risks.
4. Outstanding Value Propositions
Stable Compliance, Zero Worries
Ensure the stable up-to-standard discharge of petroleum concentration in effluent water; indicators such as COD are comprehensively better than national and local standards, helping enterprises pass the most stringent environmental inspections.
Cost Reduction & Efficiency Improvement, Enhanced Competitiveness
The water reuse rate reaches up to 70%-90%, directly reducing water resource costs and sewage discharge fees. Automatic operation and optimized energy consumption design cut down chemical consumption and operation and maintenance expenses.
Strengthened ESG, Shaped Brand Image
Demonstrate the enterprise's determination to fulfill environmental responsibilities and practice green manufacturing, enhance brand reputation and industry leadership, and meet the environmental access requirements of the global supply chain.
Compact Design, Flexible Adaptation
Modular design can be flexibly adapted to the construction of new production lines or the transformation of existing workshops, featuring a small floor area and convenient capacity expansion.
