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Heegstra, Sjoerd (author)Interest in biogas has increased due to natural gas shortages and the energy transition. Most digesters in the EU have internal heating for process stability. Unheated reactors could potentially lower costs, but have decreased kinetics due to low operational temperatures, especially in winter. This raises the question how seasonal temperature...master thesis 2022
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van Roon, Solee (author)An increasing trend of urbanization, land shortages and frequent floodings have created unfavorable living circumstances for Philippine inhabitants. Finch Floating Homes aims to repurpose the permanently flooded ricefields in Hagonoy into flood-proof, typhoon-resilient, affordable housing. The floating neighborhood will serve as storm-resilient...master thesis 2022
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WANG, Zhouyuan (author)Thermal hydrolysis (TH) has been widely applied to sewage sludge treatment to improve downstream anaerobic digestion (AD) by enhancing organic solids hydrolysis and subsequent biogas productivity. However, TH also has several drawbacks, including the formation of recalcitrant compounds, which are anaerobically non-biodegradable and even...master thesis 2022
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Zha, Qinying (author)Palm oil is a popular ingredient in domestic products. The palm oil industry has been growing rapidly over the past decades, so that the amount of palm oil mill effluent (POME) generated from the palm oil production has been increasing as well. The anaerobic membrane bioreactor (AnMBR) is a treatment solution that can remove organic pollutants...student report 2022
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Mathematical Modelling of the Hydrolysis Process of Waste Activated Sludge in a Novel Cascade SystemDurry, Sebastian (author)The hydrolysis of sludge solids especially for difficultly degradable sludges such as WAS is not fully understood, yet. The first-order hydrolysis rate was shown to function well for most easily degradable sludges and soluble substrates. This description for substrate hydrolysis in the context of anaerobic digestion has the benefit of being very...master thesis 2022
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Guerrero Esquivel, Ana Judith (author)Recovering phosphorus from manure allows to cycle a valuable nutrient back to agriculture while offering farmers a way to comply with the increasingly restrictive legislation concerning livestock manure application on agricultural land. To this end, a novel biocrystallization process in an Upflow Anaerobic Sludge Bed (UASB) reactor has been...master thesis 2022
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De Crescenzo, Carmen (author), Marzocchella, Antonia (author), Karatza, Despina (author), Molino, Antonio (author), Ceron Chafla, P.S. (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Chianese, Simeone (author), Musmarra, Dino (author)Background: Pressurised anaerobic digestion allows the production of biogas with a high content of methane and, at the same time, avoid the energy costs for the biogas upgrading and injection into the distribution grid. The technology carries potential, but the research faces practical constraints by a.o. the capital investment needed in high...journal article 2022
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Deng, Z. (author), Ferreira, Ana Lucia Morgado (author), Spanjers, H. (author), van Lier, J.B. (author)Abstract: Protein-rich agro-industrial waste streams are high in organic load and represent a major environmental problem. Anaerobic digestion is an established technology to treat these streams; however, retardation of protein degradation is frequently observed when carbohydrates are present. This study investigated the mechanism of the...journal article 2022
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Mustafa Abdelrahman, Amr (author), Furkan Aras, Muhammed (author), Cicekalan, Busra (author), Fakioglu, Malhun (author), Cingoz, Seyma (author), Basa, Safak (author), Ozgun, Hale (author), Ozturk, Izzet (author), van Lier, J.B. (author)Energy-rich sludge can be obtained from primary clarifiers preceding biological reactors. Alternatively, the incoming wastewater can be sent to a very-high-loaded activated sludge system, i.e., a so-called A-stage. However, the effects of applying an A-stage instead of a primary clarifier, on the subsequent sludge digestion for long-term...journal article 2022
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Prot, T.J.F. (author), Korving, L. (author), van Loosdrecht, Mark C.M. (author)In a wastewater treatment plant (WWTP), several sludge streams exist and the composition of their liquid phase varies with time and place. For evaluating the potential for formation of precipitates and equilibria for weak acids/bases, the ionic strength and chemical composition need to be known. This information is often not available in...journal article 2022
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van Duijvenbode, J.R. (author), Cloete, Louis M. (author), Soleymani Shishvan, M. (author), Buxton, M.W.N. (author)Multi-element (ME) datasets provide comprehensive geochemical signatures of an orebody and are commonly used to gain insight into the mineralogy, lithology, alteration patterns and to identify target-pathfinders. However, little effort is made in using these data to explain comminution or recovery characteristics. This paper describes an...journal article 2022
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Hao, Xiaodi (author), Yu, W. (author), Yuan, Tugui (author), Wu, Yuanyuan (author), van Loosdrecht, Mark C.M. (author)As a product of phosphorous recovery from anaerobic digestion (AD) of waste activated sludge (WAS), vivianite has received increasing attention. However, key factors controlling vivianite formation have not yet been fully addressed. Thus, this study was initiated to ascertain key factors controlling vivianite formation. A simulation of...journal article 2022
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Ek, Sovannmonica (author)Palm Oil Mill Effluent (POME) is an attractive medium for biogas production in an anaerobic membrane bioreactor (AnMBR) because of its high lipid content. Long-chain fatty acid (LCFA) accumulation is toxic and considered harmful for the biological performance within the reactor as they can be absorbed by biomass particles causing sludge...student report 2021
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Gonzales, A. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)The highly variable characteristics of waste activated sludge (WAS) hinder the comparison of experimental results on WAS bioconversion between the different studies that use excess sludge from different origin. Sludge grown under laboratory conditions with synthetic wastewater as feed showed high resistance to commonly applied pre-treatment...journal article 2021
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Zhou, Xinyan (author), Zheng, Huabao (author), van der Hoek, J.P. (author), Yu, Kefei (author), Cao, Yucheng (author)Large quantities of natural and synthetic hormones contained in livestock waste and wastewater (LWW) can cause serious problems in our environment. Composting and anaerobic digestion cannot remove hormones efficiently, so they should be modified to enhance the treatment processes. In addition, constructed wetlands show decent rates for...review 2021
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Ceron Chafla, P.S. (author), Chang, Y. (author), Rabaey, Korneel (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)Volatile fatty acid accumulation is a sign of digester perturbation. Previous work showed the thermodynamic limitations of hydrogen and CO<sub>2</sub> in syntrophic propionate oxidation under elevated partial pressure of CO<sub>2</sub> (pCO<sub>2</sub>). Here we study the effect of directional selection under increasing substrate load as a...journal article 2021
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Deng, Z. (author), van Linden, N. (author), Guillen, Elena (author), Spanjers, H. (author), van Lier, J.B. (author)Total ammoniacal nitrogen (TAN) is considered to be a pollutant, but is also a versatile resource. This review presents an overview of the TAN recovery potentials from nitrogen (N)-loaded residual streams by discussing the sources, recovery technologies and potential applications. The first section of the review addresses the fate of TAN...review 2021
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Guo, H. (author), Oosterkamp, M.J. (author), Tonin, F. (author), Hendriks, Alexander (author), Nair, Revathy (author), van Lier, J.B. (author), de Kreuk, M.K. (author)Hydrolysis is considered to be the rate-limiting step in anaerobic digestion of waste activated sludge (WAS). In this study, an innovative 4 stages cascade anaerobic digestion system was researched to (1) comprehensively clarify whether cascading configuration enhances WAS hydrolysis, and to (2) better understand the governing hydrolysis...journal article 2021
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Wasajja, H. (author), Al-Muraisy, S.A.A. (author), Piaggio, A.L. (author), Ceron Chafla, P.S. (author), Aravind, P.V. (author), Spanjers, H. (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)Small-scale electrical power generation (<100 kW) from biogas plants to provide off-grid electricity is of growing interest. Currently, gas engines are used to meet this demand. Alternatively, more efficient small-scale solid oxide fuel cells (SOFCs) can be used to enhance electricity generation from small-scale biogas plants. Most...journal article 2021
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Aboudi, Kaoutar (author), Ahmed, Banafsha (author), Tyagi, Vinay Kumar (author), van Lier, J.B. (author)Aromatic compounds such as aromatic amines (AAs) or lignocellulose biomass derivatives are often recalcitrant to biological processes (i.e., anaerobic digestion). The level of recalcitrance is usually explained by the biochemical structure of the compounds, which determines their removal. AAs are present in dye wastewaters mainly originated...book chapter 2021