Biochemical treatment of leachates of spent alkaline batteries

23 04 2021

Zhendong Yang from Department of Environemtnal Microbiology and Biotechnology will present the resulsts his PhD thesis during our next seminar, 26.04.2021. He will give a talk entitled “Biochemical treatment of leachates from hydrometallurgical recycling of spent alkaline batteries”.

My doctoral thesis focuses on the environmentally-friendly recovery of metals from waste and side streams by hydrometallurgical processes, and further reducing the hazardous impacts caused by the uncontrolled release of metals to the local ecosystems. A novel (bio)technology was developed, which can help to manage all the by-products and waste materials generated during the hydrometallurgical processes, that are characterized by low pH, and a high concentration of metal ions (including Fe 2+) and sulfates. The implementation of the technology provides three separate by-products, recovered from the leachate: (i) an iron-based sorbent, which will be used for water and wastewater treatment; (ii) metal sulfides, which constitute a valuable source of metals and will be used in the metallurgical industry; and (iii) elemental sulfur, which can be applied in the agricultural soil amendment. In addition, the treated water is neutral and contaminants-free and can be re-used in the technological pipeline.

You are welcome to join us!

The seminar will be held online via Zoom application at 14:00. If you’re interested in receiving an invitation, send an e-mail about that on seminariumim@uw.edu.pl.