Results 1 to 10 of about 1,804,647 (233)

Effect of activated carbon/graphite on enhancing anaerobic digestion of waste activated sludge [PDF]

Frontiers in Microbiology, 2022
The conductive media was capable to enhance anaerobic digestion and promote direct interspecific electron transfer (DIET). In this study, the effects of activated carbon- and graphite-conductive media on promoting anaerobic digestion efficiency of waste ...
Fei Wu, Jiaqian Xie, Xiaodong Xin, Junguo He   +3 more
doaj   +2 more sources

Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation [PDF]

Communications Engineering
Carbon-neutral strategies are transforming wastewater treatment from pollution removal to resource recovery. Anaerobic fermentation stands out as a promising method for the recovery of short-chain fatty acids from waste activated sludge.
Xiaodi Li, Lu Wang, Mianfeng Zhang, Bo Wang, Wei Zeng, Yongzhen Peng   +5 more
doaj   +2 more sources

Iron redox cycling drives enhanced methanogenesis in magnetic biochar-mediated anaerobic digestion of waste-activated sludge [PDF]

Environmental Science and Ecotechnology
Anaerobic digestion provides an essential pathway for reducing organic waste while simultaneously recovering bioenergy. To enhance this process, magnetic biochars are frequently employed as conductive additives to promote direct interspecies electron ...
Qing-Bin Meng, Zhang-Wei He, Zhi-Hua Li, Cong-Cong Tang, Ai-Juan Zhou, Bin Liang, Wenzong Liu, Yong-Xiang Ren, Aijie Wang   +8 more
doaj   +2 more sources

Pretreatment of waste activated sludge by rotational generator of hydraulic shock [PDF]

Ultrasonics Sonochemistry
This study investigates hydrodynamic performance of a novel sludge pretreatment device based on periodic shock wave generation by a hydraulic hammer mechanism.
Sabina Kolbl Repinc, Gašper Rak, Blaž Stres, Uroš Novak, Blaž Likozar, Anže Prašnikar, Marko Blagojevič, Benjamin Bizjan   +7 more
doaj   +2 more sources

Methylosinus trichosporium OB3b bioaugmentation unleashes polyhydroxybutyrate-accumulating potential in waste-activated sludge [PDF]

Microbial Cell Factories
Background Wastewater treatment plants contribute approximately 6% of anthropogenic methane emissions. Methanotrophs, capable of converting methane into polyhydroxybutyrate (PHB), offer a promising solution for utilizing methane as a carbon source, using
Hyerim Eam, Dayoung Ko, Changsoo Lee, Jaewook Myung   +3 more
doaj   +2 more sources

Assessment of heavy metals content in podzolic soil for various granulometric composition when applying activated sludge as the basis for nanofertilizer (the pulp-and-paper industry waste) [PDF]

Нанотехнологии в строительстве, 2022
: Introduction. Activated sludge is one of thepulp-and-paper industry waste types. Within the framework of the rational natural resources’ utilizationand the waste recycling, due to its composition, activated sludge could be subjected to certain techno
Maria G. Yurkevich, Ruslan R. Suleymanov, Ekaterina S. Dorogaya, Arkady A. Kurbatov   +3 more
doaj   +1 more source

An integrated approach of composting methodologies for solid waste management [PDF]

Global Journal of Environmental Science and Management, 2016
Organic fraction of solid waste, which upon degradation produces foul smell and generates pathogens, if not properly managed. Composting is not a method of waste disposal but it is a method of waste recycling and used for agricultural purposes.
K. Kumaresan, R. Balan, A. Sridhar, J. Aravind, P. Kanmani   +4 more
doaj   +1 more source

Syngas generation from different types of sewage sludge using microwave-assisted pyrolysis with silicon carbide as the absorbent

Heliyon, 2023
In this study, the pyrolysis of sewage sludge was explored through microwave-assisted pyrolysis. Three kinds of sludge (primary sludge, waste-activated sludge, and digested sludge) from a sewage treatment process were used.
Doo Young Oh, Daegi Kim, Hanna Choi, Ki Young Park   +3 more
doaj   +1 more source

Potassium-rich mining waste addition can shorten the composting period by increasing the abundance of thermophilic bacteria during high-temperature periods

Scientific Reports, 2023
Conventional compost sludge has a long fermentation period and is not nutrient rich. Potassium-rich mining waste was used as an additive for aerobic composting of activated sludge to make a new sludge product.
Xiao-jun Huo, YanZhou, Min-jie Chen, Jian-lin Zhou, Chun-li Zheng   +4 more
doaj   +1 more source

Experimental study on solidification/stabilisation of high-salt sludge by alkali-activated GGBS and MSWI bottom ash cementitious materials

Case Studies in Construction Materials, 2023
This study utilises alkali-activated ground granulated blast furnace slag (GGBS) as the primary method for solidification/stabilisation, with municipal solid waste incineration (MSWI) bottom ash (BA) as an auxiliary precursor to assist in the ...
Deluan Feng, Jie Wang, Yuxin Wang, Shihua Liang   +3 more
doaj   +1 more source