Review on pretreatment techniques to improve anaerobic digestion of sewage sludge

VK Nguyen, DK Chaudhary, RH Dahal, NH Trinh, J Kim… - Fuel, 2021 - Elsevier
Anaerobic digestion (AD) of sewage sludge is one of the most efficient, effective, and
environmentally sustainable remediation techniques; however, the presence of complex floc …

Stabilization of heavy metals loaded sewage sludge: Reviewing conventional to state-of-the-art thermal treatments in achieving energy sustainability

CS Liew, W Kiatkittipong, JW Lim, MK Lam, YC Ho… - Chemosphere, 2021 - Elsevier
Sewage sludge has long been regarded as a hazardous waste by virtue of the loaded heavy
metals and pathogens. Recently, more advanced technologies are introduced to make use …

Novel insights of impacts of solid content on high solid anaerobic digestion of cow manure: Kinetics and microbial community dynamics

M Abid, J Wu, M Seyedsalehi, Y Hu, G Tian - Bioresource technology, 2021 - Elsevier
High solid anaerobic digestion has become the mainstream technology for sustainable on-
farm treatment of solid wastes but has not been optimized with respect to increasing solid …

Enhancing methane production using anaerobic co-digestion of waste activated sludge with combined fruit waste and cheese whey

SM Hallaji, M Kuroshkarim, SP Moussavi - BMC biotechnology, 2019 - Springer
Background Recently, it has been indicated that anaerobic co-digestion of waste activated
sludge with other waste streams at wastewater treatment plants is a promising strategy for …

Extracellular polymeric substance decomposition linked to hydrogen recovery from waste activated sludge: Role of peracetic acid and free nitrous acid co …

Z Liu, A Zhou, H Liu, S Wang, W Liu, A Wang, X Yue - Water Research, 2020 - Elsevier
Free nitrous acid (FNA) has been recently reported to be an effective and eco-friendly
inactivator for waste activated sludge (WAS), while the limited decomposition of the …

Phycoremediation of wastewater by Chlorella pyrenoidosa and utilization of its biomass for biogas production

P Kumari, AK Varma, R Shankar, LS Thakur… - Journal of …, 2021 - Elsevier
This study aims to focus on simultaneous wastewater treatment and clean energy production
using Chlorella pyrenoidosa (C. Pyrenoidosa) microalgae. The growth of C. Pyrenoidosa is …

A study on combined effect of Fenton and Free Nitrous Acid treatment on sludge dewaterability with ultrasonic assistance: Preliminary investigation on improved …

U Menon, N Suresh, G George, AM Ealias… - Chemical Engineering …, 2020 - Elsevier
Increase in sludge dewatering plays an important role in reducing its treatment, handling
and disposal costs. In this work, efficacy of various sludge dewatering techniques such as …

Enhancing two-phase anaerobic digestion of mixture of primary and secondary sludge by adding granular activated carbon (GAC): evaluating acidogenic and …

Y Guo, Y Zheng, Y Wang, Y Zhao, M Gao… - Bioresource …, 2022 - Elsevier
Although the granular activated carbon (GAC) has been proved to enhance conventional
single-phase anaerobic digestion (AD), how it impacts on acidogenic and methanogenic …

Disintegration of wastewater activated sludge (WAS) for improved biogas production

S Wacławek, K Grübel, D Silvestri, VVT Padil… - Energies, 2018 - mdpi.com
Due to rapid urbanization, the number of wastewater treatment plants (WWTP) has
increased, and so has the associated waste generated by them. Sustainable management …

Effect of pharmaceutical sludge pre-treatment with fenton/fenton-like reagents on toxicity and anaerobic digestion efficiency

J Kazimierowicz, M Dębowski, M Zieliński - International Journal of …, 2022 - mdpi.com
Sewage sludge is successfully used in anaerobic digestion (AD). Although AD is a well-
known, universal and widely recognized technology, there are factors that limit its …