Comparison of toxic pyrogenic compounds derived from conventional cigarettes and heated tobacco products.

Heated tobacco products (HTPs) have gained popularity as alternatives to conventional cigarettes (CCs). Nevertheless, assessing their health hazards remains challenging owing to variations in individual smoking habits. Thus, this study aimed to identify toxic compounds from simulated smoking conditions and evaluate their toxicity in humans.

Strategic use of crop residue biochars for removal of hazardous compounds in wastewater.

Crop residues are affordable lignocellulosic waste in the world, and a large portion of the waste has been burned, releasing toxic pollutants into the environment. Since the crop residue is a carbon and ingredient rich material, it can be strategically used as a sorptive material for (in)organic pollutants in the wastewater after thermo-chemical valorization (i.e.

Applications of agricultural residue biochars to removal of toxic gases emitted from chemical plants: A review.

Crop residues are representative agricultural waste materials, massively generated in the world. However, a large fraction of them is currently being wasted, though they have a high potential to be used as a value-added carbon-rich material. Also, the applications of carbon-rich materials from agricultural waste to industries can have economic benefit because waste-derived carbon materials are considered inexpensive waste materials.

Investigation into role of CO in two-stage pyrolysis of spent coffee grounds.

As a way of improving process efficiency of pyrolysis of waste biomass, the effect of carbon dioxide (CO) on pyrolysis of spent coffee grounds (SCGs) was examined using a two-stage pyrolysis reactor consisting of a region with increasing temperature and an isothermal region. It was experimentally validated that CO accelerates thermal cracking of organic compounds formed during the pyrolysis of SCGs. The expedited thermal cracking attributed to employing CO in pyrolysis of SCGs led to changing pyrolytic products in gas, liquid, and solid phases.