Approaches for prevention and environmental management of novel COVID-19

Environmental Science and Pollution Research - The World Health Organization (WHO) recognized a novel coronavirus as the causative agent of a new form of pneumonia. It was subsequently named...     

Silver recovery as Ag0 nanoparticles from ion-exchange regenerant solution using electrolysis

Many silver(Ag)containing consumer-products(e.g.textiles)release Ag into the environment,posing ecotoxicological risks.Ag recovery mitigates environmental hazards,recycles Ag,and leads to sustainability.In the present work,Ag has been recovered as Ag~0nanoparticles from the spent solution(thiourea(TU)～0.5 mol/L pH～1.1–1.2,and Ag～550 mg/L)obtained from the regeneration of an Ag-loaded resin using a simple undivided electrolytic cell.The reclaimed regenerant solution has been recycled and reused in a closed-loop scheme over multiple cycles.The process parameters,i.e.,current(0.05 A)and stirring speed(600 r/min),have been optimized for Ag recovery of～94%and TU loss of～2%.The reclaimed regenerant solution has been shown to regenerate Ag-loaded resin samples with90%regeneration efficiency over 4 cycles of consecutive extraction and regeneration.The recovered Ag~0nanoparticles are monodisperse,consistently spherical in shape,and have a mean diameter of～6 nm with standard deviation of the Gaussian fit as～2.66 nm.     

Correction to: Sustainable supply chain management and green technologies: a bibliometric review of literature

Environmental Science and Pollution Research -     

Sustainable supply chain management and green technologies: a bibliometric review of literature

Environmental Science and Pollution Research - To attain ecological sustainability and transition to sustainable supply chain management (SSCM), effective technological innovation (TI) and solid...