Results 11 to 20 of about 178,624 (294)

Thermal Disintegration of Waste-Activated Sludge

Energies
The effective management of waste-activated sludge (WAS) presents a significant challenge for wastewater treatment plants (WWTPs), primarily due to the sludge’s high content of organic matter, pathogens, and hazardous substances such as heavy metals.
Katarzyna Bułkowska, Magdalena Zielińska   +1 more
doaj   +2 more sources

Quantification of polyhydroxyalkanoate accumulated in waste activated sludge.

Water Research, 2022
Polyhydroxyalkanoate accumulation experiments at pilot scale were performed with fullscale municipal waste activated sludge. Development of biomass PHA content was quantified by thermogravimetric analysis. Over 48 h the biomass reached up to 0.49 ± 0.03 gPHA/gVSS (n=4).
R. Pei, Gerard Vicente-Venegas, M. Loosdrecht, R. Kleerebezem, A. Werker   +4 more
semanticscholar   +5 more sources

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

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

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

THE ECO ENZYME APPLICATION ON INDUSTRIAL WASTE ACTIVATED SLUDGE DEGRADATION

INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY, 2022
Aim: This study aims to determine whether the application of eco enzyme affects the industrial waste activated sludge degradation and to compare the effects of eco enzyme made from oranges and tomatoes.
T. Wikaningrum, R. Hakiki, M. P. Astuti, Y. Ismail, F. Sidjabat   +4 more
semanticscholar   +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