Results 111 to 120 of about 1,442,809 (311)

Detection and semi-quantitative analysis of naphthenic acids in coal and gangue from mining areas in China

open access: yesOpen Geosciences
Naphthenic acids (NAs), herein were referred to as a class of carboxylic acid mixtures, are believed to be emitted as byproducts of petroleum production and processing.
Luo Zhonggeng, Liang Handong, Tie Cai
doaj   +1 more source

Coal biodesulfurization processes [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
Sulfur emission from coal combustion presents many environmental problems. It is believed that the best method to limit the amount of sulfur oxides emitted into the atmosphere is to reduce the amount of sulfur in coal before combustion.
Pakamas Prayuenyong
doaj  

Chemical Approaches for Array Based Detection of Amyloids

open access: yesAdvanced Sensor Research, EarlyView.
Amyloids are protein aggregates with both pathological and functional roles. Their detection is challenged by structural polymorphism, isoform diversity, and dynamic aggregation behavior. This review presents chemical array‐based sensing strategies that address these complexities, emphasizing fluorescence and colorimetric methods, alongside ...
Paulo M. Simon, Yijia Xu, Amandeep Kaur
wiley   +1 more source

Trace elements and mineral composition of waste produced in the process of combustion of solid fuels in individual household furnaces in the Upper Silesian Industrial Region (Poland)

open access: yesEnvironmental & Socio-economic Studies, 2015
This study presents preliminary research results, with regard to the concentration of chosen trace elements (Mn, Cr, Tl, Ni, Cu, Zn, As, Cd, Ba, Pb) in waste, which was produced in the process of combustion of solid fuels (hard coal and flotation ...
Smołka-Danielowska Danuta
doaj   +1 more source

Assessment of mining activities with respect to the environmental protection [PDF]

open access: yes, 2017
This paper deals with the impact of mining on the environment. Coal mining is still among the most widespread and most intense mining activity, which disturbs the landscape around us bringing regional environmental, economic and aesthetic problems ...
Dirner, Vojtech   +3 more
core  

The Nyasa coal bed [PDF]

open access: green, 1903
James A. Henderson
openalex   +1 more source

Biochar‐Iron Oxide Composites for Adsorption of Chlorophenoxy Herbicides: Impact of Chlorine Substituents on Bath and Continuous Adsorption Performance

open access: yesAdvanced Sustainable Systems, EarlyView.
Iron oxide‐impregnated biochar from sugarcane bagasse exhibits remarkable efficiency in removing 2,4‐dichlorophenoxyacetic acid and chlorophenoxyacetic acid, offering a sustainable option for water purification. The material retains high performance under real conditions while meeting safety criteria for irrigation use. Distinct structural features and
Thamiris Ferreira Souza   +9 more
wiley   +1 more source

Polylactic Acid (PLA), Polycaprolactone (PCL), and Chitosan: the Biodegradable Transition in Medical Waste Management

open access: yesAdvanced Sustainable Systems, EarlyView.
The shift to biodegradable materials in healthcare promises reduced plastic pollution, but their production, adoption, and long‐term impacts remain complex. Integrating lifecycle insights with global policy coordination is essential for meaningful environmental gains. Abstract The COVID‐19 pandemic sharply increased medical waste, intensifying concerns
By Haoxuan Yu   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy