Results 41 to 50 of about 135,745 (268)

Earthworms drastically change fungal and bacterial communities during vermicomposting of sewage sludge

Scientific Reports, 2021
Wastewater treatment plants produce hundreds of million tons of sewage sludge every year all over the world. Vermicomposting is well established worldwide and has been successful at processing sewage sludge, which can contribute to alleviate the severe ...
Jorge Domínguez, Manuel Aira, Keith A. Crandall, Marcos Pérez-Losada   +3 more
doaj   +1 more source

Modern approaches to treatment and recovery of secondary sludge of domestic sewage

Меліорація і водне господарство, 2021
For today, pollution of the environment, in particular of surface waters, has led to an environmental crisis in many countries of the world. One of the reasons for this is the use of outdated approaches to the treatment and recovery of sewage sludge. The
O. V. Zorina, Y. O. Mavrykin
doaj   +1 more source

Accumulation of heavy metals in agricultural soil irrigated by sewage sludge and industrial effluent (case study: Agh ghallah industrial estate) [PDF]

, 2015
Background and purpose: Industrial effluent and sewage sludge are used as fertilizer since they contain high levels of nutrient. The main pollutant in industrial effluent is heavy metals.
Amanidaz, N., Mehdinejad, M., Zafarzadeh, A.   +2 more
core  

Seeking to enhance the bioenergy of municipal sludge: Effect of alkali pre-treatment and soluble organic matter supplementation [PDF]

, 2017
The aim of this research is to enhance the mesophilic anaerobic digestion of municipal sludge from Cadiz-San Fernando (Spain) wastewater treatment plant at 20 days hydraulic retention time (HRT).
Pérez García, Montserrat, Rivero, M., Solera del Río, María del Rosario, Zahedi, S.   +3 more
core   +1 more source

Waste activated sludge high‐rate treatment of septage: Biodegradability studies and contact phase trials towards a cleaner environment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The waste activated sludge high‐rate (WASHR) process, developed in our previous study, is used for septic wastewater treatment. This high‐rate contact stabilization pre‐treatment uses typical waste streams found in wastewater treatment plants to reduce a portion of the loadings on the main treatment trains.
Arman Shirali, Melody Blythe Johnson, Mehrab Mehrvar   +2 more
wiley   +1 more source

Pollutant Emissions and Heavy Metal Migration in Co-Combustion of Sewage Sludge and Coal

Energies
The treatment of sewage sludge has become a global concern. Large amounts of sewage sludge can be disposed of by burning coal-mixed sludge. Thermogravimetric analysis and lab-scale combustion experiments in a drop tube furnace were utilized to study the ...
Chunyu Liu, Changtao Yue, Yue Ma
doaj   +1 more source

Ecotoxicity of sewage sludge- or sewage sludge/willow-derived biochar-amended soil

Environmental Pollution, 2022
Co-pyrolysis of sewage sludge (SL) with plant biomass gains attention as a way to minimize SL-derived biochar drawbacks, such as high amount of toxic substances, low specific surface area and carbon content. The toxicity of soil amended with SL- (BCSL) or SL/biomass (BCSLW)-derived biochar was evaluated in long-term pot experiment (180 days).
Paulina Godlewska, Izabela Jośko, Patryk Oleszczuk   +2 more
openaire   +2 more sources

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras, Ahmed K. Hassan, Dahiru Lawal, Mohammed Awad, Raed A. Al‐Juboori, Muhammad Irfan, Muhammad Rafiq, Qusay F. Alsalhy   +7 more
wiley   +1 more source

Perceptions of sewage sludge

Water Science and Technology, 2002
In Europe the agricultural reuse of sewage sludge is controlled by Directive but the combined forces of statutory regulation and “market” regulation have made the task of exploiting the scientifically recognised agricultural reuse benefits of sewage sludge arduous to achieve.
openaire   +2 more sources

Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N = 
Gustavo P. Zago, Reinaldo Giudici, João B. P. Soares   +2 more
wiley   +1 more source