Towards sustainable and energy efficient municipal wastewater treatment by up-concentration of organics

H Guven, RK Dereli, H Ozgun, ME Ersahin… - Progress in Energy and …, 2019 - Elsevier
In the last decades, energy scarcity has become an important issue globally. Renewable
energy sources have gained importance due to limited fossil fuel reserves and increased …

Bioflocculation management through high-rate contact-stabilization: a promising technology to recover organic carbon from low-strength wastewater

A Rahman, FA Meerburg, S Ravadagundhi, B Wett… - Water Research, 2016 - Elsevier
A series of pilot-scale studies were performed to compare conventional high-rate activated
sludge systems (HRAS)(continuous stirred tank reactor (CSTR) and plug flow (PF) reactor …

Performance and Mechanism of Improved Soluble Organic Carbon Recovery from Municipal Wastewater through the Coagulation-Enhanced High-Rate Contact …

H Wang, SX Wang, ZQ Ren, SN Chen, M Liu… - ACS ES&T …, 2023 - ACS Publications
High-rate contact stabilization is promising to capture organic carbon from municipal
wastewater; however, its engineering application is restricted due to its poor capability of …

Effective organic matter removal via bio-adsorption prior to anammox process and utilization of carbon-rich sludge

K Fu, W Yang, S Fu, Y Bian, A Huo, T Guan, X Li… - Journal of …, 2025 - Elsevier
Excessive organic matter in the anaerobic ammonia oxidation (Anammox) leads to the
growth of a large number of heterotrophic bacteria, which disrupts the anaerobic ammonia …

[PDF][PDF] Balancing flocs and granules by external selectors to increase capacity in high-rate activated sludge systems

T Van Winckel, H De Clippeleir, A Mancell-Egala… - Screen, 2016 - researchgate.net
Urbanization imposes a significant challenge on existing wastewater treatment facilities.
Increased flows resulting from this increase in population density might jeopardize meeting …

[PDF][PDF] Impact of RAS aeration on bioflocculation and carbon redirection in high-rate activated sludge processes

A Rahman, F Meerburg, S Ravadagundhi… - Proceedings of the …, 2016 - researchgate.net
High-rate activated sludge (HRAS) processes are gaining attention as technologies to
maximize carbon redirection and harvesting from wastewater, and may be successfully …

Resource Efficient Microbial Bioprocesses for Shortcut Nitrogen and Phosphorus Removal from Wastewater

P Roots - 2020 - search.proquest.com
Excess loading of reactive nitrogen and phosphorus into the environment from human
activities has resulted in widespread eutrophication and the degradation of surface water …

High-Rate Activated Sludge Systems: A Promising Technology to Harvest Organic Carbon from Municipal Wastewater

A Rahman - 2017 - search.proquest.com
The high-rate activated sludge (HRAS) systems are shifting the energy intensive processes
to low-energy and sustainable technologies for wastewater treatment. In order to recover …

[PDF][PDF] Management of bioflocculation through high-rate contact-stabilization: A promising technology to recover carbon from lowstrength wastewater

A Rahman, FA Meerburg… - WEF/IWA Nutrient …, 2016 - researchgate.net
High-rate activated sludge (HRAS) processes are gaining attention as technologies to
maximize carbon redirection and harvesting from wastewater, and may be successfully …

Controlling ORP as the key to reduce odor emission in secondary systems

A Romero-Flores, H De Clippeleir, M Garrido… - WEFTEC …, 2016 - accesswater.org
In this study, volatile organic sulfur compounds (VOSC's) from full-scale secondary reactors
were investigated and the potential mitigation strategies are presented in this paper. Off gas …