Distribution of plastic litter in beach sediments of Silver beach, Cuddalore, during Nivar Cyclone - A first report.

The present study was conducted to assess the distribution of plastic debris in pre- and post-cyclonic beach sediments in Silver beach, Cuddalore, southeast coast of India. The total amount of macroplastic in pre-cyclonic beach sediments was higher than that in the post-cyclonic coastal sediments (pre-cyclonic 16.1%; post-cyclonic 5.

Macrodebris and microplastic distribution in the beaches of Rameswaram Coral Island, Gulf of Mannar, Southeast coast of India: A first report.

This is the first study on the distribution and characteristics of plastic debris found in the sediments of Rameswaram Island, Gulf of Mannar, India. Studies on the distribution of plastics and microplastic content in highly populated coral islands and their impact on the coral ecosystem are very scarce. For this purpose, marine sediment samples were collected from 20 locations along the coastal areas of the study region.

Electrochemical process for electrode material of spent lithium ion batteries.

Electrochemical method for recovering cobalt and manganese from electrode materials of spent lithium ion batteries was studied. Electrochemical leaching of cobalt and manganese from electrode material was optimized by varying different process parameters such as time, acid concentration and current density. Both cobalt and manganese could effectively be leached out at a current density of 400A/m in 3h using 2M sulphuric acid.

A hydrometallurgical process for recovering total metal values from waste monolithic ceramic capacitors.

A hydrometallurgical process for recovering the total metal values from waste monolithic ceramic capacitors was investigated. The process parameters such as time, temperature, acid concentration, hydrogen peroxide concentration and other reagents (amount of zinc dust and sodium formate) were optimized. Base metals such as Ba, Ti, Sn, Cu and Ni are leached out in two stages using HCl in stage 1 and HCl with H2O2 in stage 2.

An innovative approach to recover the metal values from spent lithium-ion batteries.

A new approach to recover metal values from spent lithium-ion batteries with a simple and environmentally friendly method is investigated. Two stages of water washing of the mixed black powder resulted in satisfactory separation of cobalt and lithium. Lithium in the wash liquor is precipitated using saturated sodium carbonate solution.