Results 11 to 20 of about 71,385 (248)

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

Novel cake characteristics of waste-activated sludge [PDF]

Water Research, 2001
Breaking down the time limit constraints for conventional compression-permeation (C-P) cell test, this work has, for the first time, experimentally evaluated the cake characteristics of viable waste-activated sludge subject to polyelectrolyte flocculation and to freeze/thaw treatment under a pressure range of 25-200 kPa.
Wu, R. M., Lee, D. J., Wang, C. H., Chen, J. P., Tan, R. B. H.   +4 more
openaire   +2 more sources

Forecasting wind speed data by using a combination of ARIMA model with single exponential smoothing [PDF]

, 2021
Wind serves as natural resources as the solution to minimize global warming and has been commonly used to produce electricity. Because of their uncontrollable wind characteristics, wind speed forecasting is considered one of the best challenges in ...
A. Rahman, Nur H., Hassan, Siti F., Kamisan, Nur A., Lee, Muhammad H., Nor, Maria E., Norrulashikin, Siti M.   +5 more
core   +1 more source

Gravitational sedimentation of flocculated waste activated sludge [PDF]

Water Research, 2003
The sedimentation characteristics of flocculated wastewater sludge have not been satisfactorily explored using the non-destructive techniques, partially owing to the rather low solid content (ca. 1-2%) commonly noted in the biological sediments. This paper investigated, for the first time, the spatial-temporal gravitational settling characteristics of ...
Chu, C. P., Lee, D. J., Tay, J. H.
openaire   +2 more sources

A critical review of resource recovery from municipal wastewater treatment plants : market supply potentials, technologies and bottlenecks [PDF]

, 2020
In recent decades, academia has elaborated a wide range of technological solutions to recover water, energy, fertiliser and other products from municipal wastewater treatment plants.
Dewulf, Jo, Garfí, Marianna, Kehrein, Philipp, Osseweijer, Patricia, Posada, John, van Loosdrecht, Mark   +5 more
core   +1 more source

Enzyme activity of waste activated sludge extracts

Water Science and Technology, 2019
AbstractWastewater treatment and generated biological sludge provide an alternative source of enzymes to conventional industrial production methods. Here, we present a protocol for extracting enzymes from activated sludge using ultrasonication and surfactant treatment.
Liu, Z, Smith, SR
openaire   +4 more sources

Lime Stabilization of Waste Activated Sludge [PDF]

Health Scope, 2014
Background: Sewage sludge (Biosolids) is a byproduct of wastewater treatment that accumulates in large quantities. Effective stabilization and disinfection of sewage sludge prior to land application are necessary to not only protect human health, but also to induce the public its benefits and safety.
Mahdi Farzadkia, Edris Bazrafshan
openaire   +1 more source