Battery manufacturing wastewater

Why is water used in battery manufacturing?

Water is used in battery manufacturing plants in preparing reactive materials and electrolytes, in depositing reactive materials on supporting electrode structures, in charging electrodes and removing impurities, and in washing finished cells, production equipment and manufacturing areas.

Can We valorize battery manufacturing wastewater characterized by high salt concentrations?

In this study, we demonstrate a practical approach for valorizing battery manufacturing wastewater, characterized by high salt concentrations. This approach overcomes the osmotic pressure limitation while ensuring high overall yield and purity.

What is the quality of wastewater in the battery industry?

The quantity and quality of wastewater in the battery industry vary a lot. In this chapter, we mainly focus on the wastewaters related to lithium-ion and NiMH batteries. These battery types contain CRMs. LIBs contain typically lithium, nickel, manganese and cobalt, and graphite as anode material.

Are battery industry wastewater and process effluents recoverable?

According to the results which have been presented in this chapter, only limited information is available related to the treatment of battery industry wastewaters and process effluents. However, these effluents contain valuable elements which are essential to recover due to the growing need for them.

What ions are recovered from battery manufacturing wastewater?

Transition metal ions (Ni 2+, Cu 2+, and Cd 2+) are recovered by 90 % from wastewater. Transition metal ions are enriched to a 43-fold concentration, achieving 99.8% purity. Leveraging the latent value within battery manufacturing wastewater holds considerable potential for promoting the sustainability of the water-energy nexus.

What is lithium battery industry wastewater treatment technology?

Further, in another patent, lithium battery industry wastewater treatment technology was developed ( Guo and Ji, 2018 ). In this patent study, treatment includes neutralization, coagulation, flocculation, precipitation, and finally biological approach using aerobic membranes. The developed process is cost-effective and simple.