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Application of a simplified model for assessing particle removal in dissolved air flotation (DAF) systems: Experimental verification at laboratory and full-scale level

Piaggio, A.L. (author), Smith, Geo (author), de Kreuk, M.K. (author), Lindeboom, R.E.F. (author)

Particle-bubble collisions in dissolved air flotation (DAF) systems play a crucial role in the removal of total suspended solids (TSS). DAF particle-bubble collision models incorporate factors such as particle diameters, charge and density, bubble diameters, and collision factors. The challenge lies in accounting for the wide range of...

journal article 2024

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An identification algorithm of switched Box-Jenkins systems in the presence of bounded disturbances: An approach for approximating complex biological wastewater treatment models

Moradvandi, A. (author), Abraham, E. (author), Goudjil, Abdelhak (author), De Schutter, B.H.K. (author), Lindeboom, R.E.F. (author)

This paper focuses on the development of linear Switched Box–Jenkins (SBJ) models for approximating complex dynamical models of biological wastewater treatment processes. We discuss the adaptation of these processes to the SBJ framework, showing the model's generality and flexibility as a class of switched systems that can offer accurate...

journal article 2024

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The fate of sulfamethoxazole and trimethoprim in a micro-aerated anaerobic membrane bioreactor and the occurrence of antibiotic resistance in the permeate

Piaggio, A.L. (author), Mittapalli, Srilekha (author), Calderon Franco, D. (author), Weissbrodt, D.G. (author), van Lier, J.B. (author), de Kreuk, M.K. (author), Lindeboom, R.E.F. (author)

This study investigates the effects, conversions, and resistance induction, following the addition of 150 μg·L⁻¹of two antibiotics, sulfamethoxazole (SMX) and trimethoprim (TMP), in a laboratory-scale micro-aerated anaerobic membrane bioreactor (MA-AnMBR). TMP and SMX were removed at 97 and 86%, indicating that micro-aeration did not...

journal article 2023

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Effects of Low Oxygen Dosages on an Anaerobic Membrane Bioreactor, Simulating the Oxygen Load in an Anaerobic Digester-Dissolved Air Flotation (AD-DAF) System

Piaggio, A.L. (author), Sasidhar, K.B. (author), Khande, Pravin (author), Balakrishnan, Malini (author), van Lier, J.B. (author), de Kreuk, M.K. (author), Lindeboom, R.E.F. (author)

This study reports the effects of microaeration on a laboratory-scale AnMBR (MA-AnMBR) fed with synthetic concentrated domestic sewage. The imposed oxygen load mimics the oxygen load coming from a dissolved air flotation (DAF) unit, establishing an anaerobic digester-DAF (AD-DAF) combination with sludge recycling. Results showed a reduced COD...

journal article 2023

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Thermal stability of film forming amines-based corrosion inhibitors in high temperature power plant water solutions

Vidojkovic, S. (author), Mijajlovic, Miroslav (author), Lindeboom, R.E.F. (author), Jovicic, Vojislav (author)

Film forming amines (FFA) are corrosion inhibitors added to power plant water. The major concern associated with their application is the thermal stability in the high temperature power plant water medium, along with the risk of decomposition into low molecular weight organic acids that can cause corrosive damages in the water/steam cycle....

review 2023

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Steering the product spectrum in high-pressure anaerobic processes: CO₂ partial pressure as a novel tool in biorefinery concepts

Ceron Chafla, P.S. (author), de Vrieze, Jo (author), Rabaey, Korneel (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)

Background: Elevated CO₂ partial pressure (pCO₂) has been proposed as a potential steering parameter for selective carboxylate production in mixed culture fermentation. It is anticipated that intermediate product spectrum and production rates, as well as changes in the microbial community, are (in)directly influenced by...

journal article 2023

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A novel mechanistic modelling approach for microbial selection dynamics: Towards improved design and control of raceway reactors for purple bacteria

Alloul, A. (author), Moradvandi, A. (author), Puyol, Daniel (author), Molina, Raúl (author), Gardella, G. (author), Vlaeminck, Siegfried E. (author), De Schutter, B.H.K. (author), Abraham, E. (author), Lindeboom, R.E.F. (author), Weissbrodt, D.G. (author)

Purple phototrophic bacteria (PPB) show an underexplored potential for resource recovery from wastewater. Raceway reactors offer a more affordable full-scale solution on wastewater and enable useful additional aerobic processes. Current mathematical models of PPB systems provide useful mechanistic insights, but do not represent the full...

journal article 2023

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Models and methods for hybrid system identification: a systematic survey

Moradvandi, A. (author), Lindeboom, R.E.F. (author), Abraham, E. (author), De Schutter, B.H.K. (author)

Dynamical systems and processes that either exhibit non-smooth behaviours (e.g. through logic control or natural phenomena) or work in different modes of operation are usually represented using hybrid systems models, i.e. mathematical models that combine continuous dynamics with discrete-event dynamics. Identification of a hybrid system...

conference paper 2023

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Solar-driven steam gasification of oil palm empty fruit bunch to produce syngas: Parametric optimization via central composite design

Al-Muraisy, S.A.A. (author), Soares, L.A. (author), Chuayboon, Srirat (author), Ismail, Shahrul Bin (author), Abanades, Stéphane (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)

Oil palm empty fruit bunch (OPEFB) is an abundant waste that is commonly incinerated, causing environmental pollution. In this study, an alternative waste management approach was investigated to produce value-added syngas from OPEFB using solar steam gasification. The three operating variables were temperature (1100–1300 °C), H₂O...

journal article 2022

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The key factor in High Pressure Hydrogenotrophic Denitrification: Hydrogen partial pressure

Zhou, Jianmin (author), Ding, Lei (author), Shi, Mu (author), Lindeboom, R.E.F. (author), Cui, Changzheng (author)

In the envisaged hydrogen economy, H₂ could be an interesting alternative electron donor for the denitrification of drinking water or wastewater. The main obstacle to engineering the hydrogenotrophic denitrification process is the low solubility of H₂ in water under atmospheric pressure, which limits denitrification rate...

journal article 2022

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Modelling of autogenerative high-pressure anaerobic digestion in a batch reactor for the production of pressurised biogas

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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Valorization of sugarcane bagasse through biofuel and value-added soluble metabolites production: Optimization of alkaline hydrothermal pretreatment

Soares, L.A. (author), Garcia Solano, M.S. (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Silva, Edson L. (author), Varesche, Maria B.A. (author)

Sugarcane bagasse (SCB) is increasingly considered as a potential source for bioenergy or bulk chemicals production. However, efficient pretreatment techniques need to be developed to make full use of its potential. A central composite design was employed to evaluate the effect of temperature (146.4–213.6 °C), NaOH concentration (0.7–2.3 M)...

journal article 2022

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Solid oxide fuel cells (SOFCs) fed with biogas containing hydrogen chloride traces: Impact on direct internal reforming and electrochemical performance

Illathukandy, Biju (author), Saadabadi, S.A. (author), Kuo, P.C. (author), Wasajja, H. (author), Lindeboom, R.E.F. (author), Vijay, V. (author), Aravind, P.V. (author)

This study is particularly aimed at investigating the influence of hydrogen chloride traces in biogas on direct internal reforming in solid oxide fuel cells (SOFCs). The experiments are performed with simulated biogas containing methane to carbon dioxide ratio of 3:2, the usual average proportion in biogas. To the best of our knowledge, there...

journal article 2022

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High suspended solids removal of Indian drain water with a down-scaled Dissolved Air Flotation (DAF) for water recovery. Assessing water-type dependence on process control variables

Piaggio, A.L. (author), Soares, Lais A. (author), Balakrishnan, Malini (author), Guleria, Tavishi (author), de Kreuk, M.K. (author), Lindeboom, R.E.F. (author)

The Barapullah drain crosses through New Delhi, India, and transports millions of cubic meters of stormwater, municipal sewage and industrial sewage to the Yamuna River. Seasonal variations and ambiguous annual discharges cause 20-fold fluctuations in hydraulic flows, pollutants type and concentration. Furthermore, New Delhi is among the most...

journal article 2022

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Pre-incubation conditions determine the fermentation pattern and microbial community structure in fermenters at mild hydrostatic pressure

Ceron Chafla, P.S. (author), García-Timermans, Cristina (author), de Vrieze, Jo (author), Ganigué, Ramon (author), Boon, Nico (author), Rabaey, Korneel (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)

Fermentation at elevated hydrostatic pressure is a novel strategy targeting product selectivity. However, the role of inoculum history and cross-resistance, that is, acquired tolerance from incubation under distinctive environmental stress, remains unclear in high-pressure operation. In our here presented work, we studied fermentation and...

journal article 2022

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Negative emissions at negative cost-an opportunity for a scalable niche

Aravind, P.V. (author), Champatan, Vipin (author), Gopi, Girigan (author), Vijay, V. (author), Pande, S. (author), van den Broeke, L.J.P. (author), Shreedhar, S. (author), Nandakishor, T. M. (author), Lindeboom, R.E.F. (author), Posada Duque, J.A. (author)

In the face of the rapidly dwindling carbon budgets, negative emission technologies are widely suggested as required to stabilize the Earth’s climate. However, finding cost-effective, socially acceptable, and politically achievable means to enable such technologies remains a challenge. We propose solutions based on negative emission technologies...

journal article 2022

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Syntrophic acetate oxidation having a key role in thermophilic phenol conversion in anaerobic membrane bioreactor under saline conditions

Garcia Rea, V.S. (author), Muñoz Sierra, Julian (author), Elkalliny, A.S.M. (author), Cerqueda-García, Daniel (author), Lindeboom, R.E.F. (author), Spanjers, H. (author), van Lier, J.B. (author)

Phenol conversion under saline thermophilic anaerobic conditions requires the development and sustenance of a highly specialized microbial community. In the present research, an anaerobic membrane bioreactor (AnMBR) fed with an influent containing 0.5 g·L⁻¹ phenol and 6.5 gNa⁺·L⁻¹ was operated at 55 °C for 300...

journal article 2022

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Improvement of Biogas Quality and Quantity for Small-Scale Biogas-Electricity Generation Application in off-Grid Settings: A Field-Based Study

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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Directional Selection of Microbial Community Reduces Propionate Accumulation in Glycerol and Glucose Anaerobic Bioconversion Under Elevated pCO₂

Ceron Chafla, P.S. (author), Chang, Yu Ting (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 CO₂ in syntrophic propionate oxidation under elevated partial pressure of CO₂ (pCO₂). Here we study the effect of directional selection under increasing substrate load as a...

journal article 2021

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The effect of H₂S on internal dry reforming in biogas fuelled solid oxide fuel cells

Wasajja, H. (author), Saadabadi, S.A. (author), Illathukandy, Biju (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Aravind, P.V. (author)

Internal dry reforming of methane is envisaged as a possibility to reduce on capital and operation costs of biogas fuelled solid oxide fuel cells (SOFCs) system by using the CO₂ present in the biogas. Due to envisaged internal dry reforming, the requirement for biogas upgrading becomes obsolete, thereby simplifying the system...

journal article 2021