Efficient Desulfurizer Recycling during Spent Lead-Acid Batteries Paste Disposal by Zero-Carbon Precursor Hypothermic Smelting.

Recycling of spent lead-acid batteries (LABs) is extremely urgent in view of environmental protection and resources reuse. The current challenge is to reduce high consumption of chemical reagents. Herein, a closed-loop spent LABs paste (SLBP) recovery strategy is demonstrated through NaMoO consumption-regeneration-reuse.

Novel pathway of stabilized CuS volatilization by derivated CHCl.

Stabilized heavy metals-containing phases and low chlorine utilization limit heavy metals chlorination reactions. The traditional method of adding chlorinating agents can promote heavy metals chlorination volatilization, but the limiting factor has not been resolved and more chlorides are emitted. Herein, a new reaction pathway to promote heavy metals chlorination volatilization through the transformation of stabilized heavy metals-containing phases and chlorine species by the addition of biomass at the sintering is first reported.

Effects of medical waste incineration fly ash on the promotion of heavy metal chlorination volatilization from incineration residues.

High contents of heavy metals and Cl are major challenges for incineration residue disposal. Classification by the Chinese government and the coronavirus disease 2019 pandemic have changed the characteristics of incineration residues, thereby increasing the difficulty of disposal. In this study, medical waste incineration fly ash (MWI FA) was proposed as an additive to promote chlorination volatilization of heavy metals from municipal solid waste incineration fly ash (MSWI FA) and medical waste incineration slag (MWI S).

Removal of toxic arsenic (As(Ⅲ)) from industrial wastewater by ultrasonic enhanced zero-valent lead combined with CuSO.

Arsenic was one of toxic element in industrial wastewater. Removal of arsenic has always been a hot research topic in academia. Herein, arsenic (As(Ⅲ)) in industrial wastewater was removed by ultrasonic enhanced zero-valent lead combined with copper sulfate (CuSO).