A national workshop organized Indian Institute of Metals

New Horizons in Metallurgy, Materials, and Manufacturing

A national workshop organized by Indian Institute of Metals
December 14th - 16th 2020

Home Schedule Speakers

Material Recycling: Unearthing metals from anthropogenic and industrial resources

avatar Dr. Pratima Meshram CSIR-National Metallurgical Laboratory
Jamshedpur, INDIA
  • Bio

    Dr. Pratima Meshram is currently Senior Scientist in the Secondaries and Resource Utilization Group in Metal Extraction and Forming Division of CSIR-National Metallurgical Laboratory (CSIR-NML), Jamshedpur, INDIA. She graduated in Metallurgical Engg. from Pt. Ravishankar Shukla University, Raipur and obtained her post graduate degree (M.Tech.) from Banaras Hindu University (IIT-BHU), Varanasi specialized in extractive metallurgy. She received her PhD in Metallurgical engineering from Banaras Hindu University (IIT-BHU), Varanasi in the area of Hydrometallurgical processing of spent rechargeable batteries for extraction of metallic values After graduation, she joined as Lecturer in Department of Metallurgical Engg. at NIT-Raipur (formerly Govt. Engg. College). After completion of M.Tech degree, she worked with Rashtriya Ispat Nigam Limited (Vizag Steel) as Junior Manager for 1 year. She then joined as Junior Scientist in the Metal Extraction and Forming Division of CSIR-NML in the area of hydrometallurgy and allied disciplines in 2008.

    She has been awarded Prof. Shilowbhadra Banerjee award of CSIR-NML for Best in-House Project on “Solvothermal synthesis of high value metal/oxide/ferrite powders from secondary resources” in 2011. She was awarded MISHRA award for best paper published in the area of Electro-, Hydro- & Bio Processing by IIME, India in 2015-16 and 2017-18. She was awarded fellowship worked under Indo-Finnish Mobility Program (2019-20) in the area of battery recycling to work at Lappeenranta University of Technology.

    She is also associated as member of various National Professional Bodies (Indian Institute of Metals, Indian Institute of Minerals Engineers, Material Research Society of India). Ms. Pratima Meshram in her short span of R&D career has published over 45 papers in SCI Journals and proceedings of National and International Conferences. She has presented over 10 papers in ORAL/POSTER category at various National and International Symposia/Colloquiums in India.

    She has been associated with various projects sponsored by Govt. of India and industries in the capacities of Project Leader and Team Member. Her areas of interest include Hydrometallurgy, Electrometallurgy, Recycling and waste management (metal scraps, effluents, E-waste, etc).

  • Abstract

    Until few years ago, only few metals were extracted from mine based resources. The rise in demand and purity for varied applications have raised the bar for extractable cut-offs over time and technological constraints lead their disposal in secondaries. The recovery process cannot focus on a single metal (especially if present in low concentration), rather a holistic approach to tackle the entire waste must be taken into consideration to make the process economically viable and resource efficient. Energy consumption rises exponentially for metal extraction from resources with < 1 wt% total concentration, leading to high cost, water demand and higher CO2 emissions. In this chapter, material recycling is focused on anthropogenic and industrial wastes which turn out to a potent resource for few prevalent metals like Al, Ti, Fe, Cu; and many critical elements. This chapter covers a comprehensive overview of these resources, metals present, and various estimates for potential recovery of various materials with respect to current demand for them. These materials/resources are currently being explored as a sustainable alternative to the primary ores. In this chapter recycling of different secondary resources; their generation, metal content and recycling processes are summarized. The purpose of this chapter is to depict the status of the recycling technologies for the extraction of metals inherent in anthropogenic wastes viz., aluminium cans, e-wastes; and industrial waste like process wastes, catalysts, effluents, mine tailings, and metallurgical slags, depicting a summary of those under-utilized wastes. Also, the problems and the prospect of the studies of their recycling technologies especially focused on the hydrometallurgical processes have been put forward.