Results 61 to 70 of about 412 (178)

Bioleaching Process of Sewage Sludge and Anaerobically Digested Sludge via Indigenous Sulfur-Oxidizing Bacteria to Improve Dewaterability and Reduce Heavy Metal Content

Fermentation
This study investigated the role of indigenous inoculum (primarily sulfur-oxidizing Acidithiobacillus thiooxidans and other acidophilic bacteria) in heavy metal removal from sewage sludge (SS) and anaerobic digested sludge (ADS).
Suyun Xu, Yuze Jiang, Ruixiang Zou, Xuefeng Zhu, Hongbo Liu   +4 more
doaj   +1 more source

Anaerobic biodegradation and dewaterability of aerobic granular sludge [PDF]

Journal of Chemical Technology & Biotechnology, 2019
AbstractBACKGROUNDAlthough a growing number of full‐scale wastewater treatment plants have already been constructed and operated with aerobic granular sludge (AGS), only limited information is available about further post‐treatment, in particular about sludge stabilization and dewaterability.
Lydia Jahn, Ernis Saracevic, Karl Svardal, Jörg Krampe   +3 more
openaire   +1 more source

Impact of Sludge Floc Size and Water Composition on Dewaterability [PDF]

Chemical Engineering & Technology, 2014
AbstractIn order to observe the impact of different water compositions on sludge dewaterability, assessments of floc sizes using a particle size analyzer and of sludge dewaterability based on the capillary suction time (CST) test were carried out. Synthetic raw water had small floc sizes, and synthetic domestic wastewater had both larger median floc ...
Fitria, D, Scholz, M, Swift, GM, Hutchinson, SM   +3 more
openaire   +4 more sources

Elucidating co-conditioning strategies of aluminium-based sludge using natural biopolymeric magnetite composite for leveraging dewaterability

Applied Water Science
Significant co-conditioning of aluminum-based sludge using alternative conditioner (natural biopolymer-magnetite/H2O2) as a Fenton conditioner for improving the sludge dewaterability is investigated in the current study.
Zahraa A. Elsayed, Ibrahim E. El-Sayed, Maha A. Tony   +2 more
doaj   +1 more source

Effects of surfactants on the improvement of sludge dewaterability using cationic flocculants. [PDF]

PLoS ONE, 2014
The effects of the cationic surfactant (cationic cetyl trimethyl ammonium bromide, CTAB) on the improvement of the sludge dewaterability using the cationic flocculant (cationic polyacrylamide, CPAM) were analyzed.
Yongjun Sun, Huaili Zheng, Jun Zhai, Houkai Teng, Chun Zhao, Chuanliang Zhao, Yong Liao   +6 more
doaj   +1 more source

Effects of anaerobic digestion on the dewaterability of sonicated biosludge

Journal of Environmental Management
Studies on the impact of anaerobic digestion on biosludge dewatering are conflicting and mechanisms are poorly understood, with significant implications to both wastewater costs and environmental impact. To identify the mechanisms that improve dewaterability and to amplify the impacts of anaerobic digestion, biosludge was first sonicated to deteriorate
Sergio Luna Nino, Torsten Meyer, Elizabeth A. Edwards, D. Grant Allen   +3 more
openaire   +2 more sources

Effect of Conditioner on Dewaterability of Sewage Sludge

Nigerian Journal of Technology, 2014
A model for dewaterability of conditioned sludge was derived based on data generated after dewaterability experiments using six sand drying beds. In these experiments, Six beds were used, the first bed contain no conditioner and served as control experiment. Ferric Chloride was added to the remaining five beds in the neighborhood of 1%, 2%, 3%, 4%, and
Obianyo, JI, Agunwamba, JC
openaire   +3 more sources

Effect of Anaerobic Digestion on Rheological Parameters and Dewaterability of Aerobic Sludges from MBR and Conventional Activated Sludge Plants

Chemical Engineering Transactions, 2015
The paper investigates and compares the characteristics of sludges produced by membrane Bio-Reactor (MBR) and Conventional Activated Sludge (CAS) systems.
L. Pontoni, G. D'Alessandro, G. D'Antonio, G. Esposito, M. Fabbricino, L. Frunzo, F. Pirozzi   +6 more
doaj   +1 more source

Upgrading waste activated sludge into valuable biosolids via an integrated biochemical approach

Water Research X
Sludge management is a significant challenge for water utilities worldwide. High costs are largely driven by poor digestibility and dewaterability, while elevated concentrations of pathogens and toxic metals limit the safe and beneficial reuse of sludge.
Xi Lu, Zhiyao Wang, Zheng Kong, Haoran Duan, Zhiqiang Zuo, Zhetai Hu, Min Zheng, Shihu Hu   +7 more
doaj   +1 more source

The sludge dewaterability in membrane bioreactors

, 2016
The influence of the sludge origin on the dewaterability features has been investigated by comparing the experimental results of six membrane bioreactor pilot plants with different configurations. The capillary suction time (CST) and the specific resistance to filtration (SRF), identified as representative of sludge dewaterability features, were ...
CAPODICI, Marco, MANNINA, Giorgio
openaire   +1 more source