Searched for: subject%3A%22Hydrolysis%22
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Pavez Jara, J.A. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Full-scale thermal hydrolysis processes (THP) showed an increase in nutrients release and formation of melanoidins, which are considered to negatively impact methanogenesis during mesophilic anaerobic digestion (AD). In this research, fractionation of THP-sludge was performed to elucidate the distribution of nutrients and the formed...
journal article 2023
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Wang, Sihan (author)
Anaerobic digestion (AD) is an effective and economical in secondary sludge management. Thermal hydrolysis process (THP) is a reliable pre-treatment method to improve the biodegradability of sludge. Partial nitritation and anammox process (PN/A) is a suitable method used to remove nitrogen in reject water which has a low COD/N ratio. However,...
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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Durry, 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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Moraru, Mihai Daniel (author), Kiss, A.A. (author), Bildea, Costin Sorin (author)
Two chemistry routes are known for 4-hydroxybutyl acrylate production: the direct esterification of acrylic acid with 1,4-butanediol, and the transesterification of methyl acrylate with 1,4-butanediol. However, very scarce information in the literature is available about industrial production, or design and operation of production processes....
journal article 2022
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Toja Ortega, S. (author), van den Berg, L. (author), Pronk, M. (author), de Kreuk, M.K. (author)
In aerobic granular sludge (AGS) reactors, granules of different sizes coexist in a single reactor. Their differences in settling behaviour cause stratification in the settled granule bed. In combination with substrate concentration gradients over the reactor height during the anaerobic plug-flow feeding regime, this can result in functional...
journal article 2022
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Consorti Bussamra, B. (author)
Targeting to improve the utilization of lignocellulosic residues in the ethanol processing industry, this work aimed to test if the product inhibition of the enzymatic hydrolysis could be relieved by extractive reaction using aqueous two-phase systems (ATPS). The performance of enzymatic hydrolysis in ATPS is not well defined in literature. In...
doctoral thesis 2021
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Sathish, Samyuktha (author)
In an aerobic granular sludge (AGS) reactor treating urban wastewater, nutrient removal depends on the availability of carbon source. Domestic wastewater consists of 40-60% of slowly biodegradable complex substrates, out of which proteins form a major fraction. Despite this, little is known about the mechanisms of protein degradation in AGS....
master thesis 2021
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de Sousa, Tales Abreu Tavares (author), do Monte, Fernanda Patrício (author), do Nascimento Silva, José Vanderley (author), Lopes, Wilton Silva (author), Leite, Valderi Duarte (author), van Lier, J.B. (author), de Sousa, José Tavares (author)
The influence of acidic and alkaline conditions on the solubilisation process of waste activated sludge (WAS) was investigated using HCl and NaOH at pH 2, 10, 11 and 12. The rise in concentration of solubilised compounds, the influence of reaction time, and the influence of the concentration of total solids (TS) during the solubilisation...
journal article 2021
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Ochs, Pascal (author), Martin, Benjamin D. (author), Germain, Eve (author), Wu, Zhuoying (author), Lee, Po Heng (author), Stephenson, Tom (author), van Loosdrecht, Mark C.M. (author), Soares, Ana (author)
Suspended sludge deammonification technologies are frequently applied for sidestream ammonia removal from dewatering liquors resulting from a thermal hydrolysis anaerobic digestion (THP/AD) process. This study aimed at optimizing the operation, evaluate the performance and stability of a full-scale suspended sludge continuous stirred tank...
journal article 2021
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Toja Ortega, S. (author), Pronk, M. (author), de Kreuk, M.K. (author)
Complex substrates, like proteins, carbohydrates, and lipids, are major components of domestic wastewater, and yet their degradation in biofilm-based wastewater treatment technologies, such as aerobic granular sludge (AGS), is not well understood. Hydrolysis is considered the rate-limiting step in the bioconversion of complex substrates, and as...
journal article 2021
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Kodimaniyanda, Nivya (author)
The growing population is accompanied by an increase in the global energy and resource demand. Biorefining can be considered a means to help meet these growing demands through a range of bio-based materials. A biorefinery approach for developing an upstream process for the production of valuable products from macroalgae would be essential to...
master thesis 2020
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Sutaria, Sasha (author)
Sludge management has gained importance over the years due to high sludge treatment and disposal cost, stringent disposal laws, and a need to move towards sustainable energy production. Anaerobic Digestion (AD) of waste activated sludge (WAS) is a favoured sludge stabilisation technique due to its low energy footprint. Hydrolysis – the first...
master thesis 2020
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Widya Prihesti Iswarani, Widya (author)
Various technologies have been implemented in wastewater treatment plants (WWTPs) to generate clean effluent with minimised impacts on the environment. Thermal hydrolysis process (THP) and struvite crystallisation reactors are two examples of these technologies. THP generates humic-like substances, known as melanoidins, that are presumed to...
master thesis 2020
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Merola, Chiara (author)
The performance of AGS reactors treating municipal wastewater can be optimised by converting influent particulate matter into readily available substrate. This can be done via anaerobic hydrolysis and fermentation of the influent. Anaerobic processes taking place in pressure sewers are not fully understood but show the potential to act as a pre...
master thesis 2020
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Cui, Z. (author), Fan, J. (author), van Ginkel, H.J. (author), Fan, Xuejun (author), Zhang, Kouchi (author)
The CaAlSiN<sub>3</sub>:Eu<sup>2+</sup> red phosphor and its silicone/phosphor composite are very promising materials used in the high color rendering white light-emitting diode (LED) packaging. However, the reliabilities of CaAlSiN<sub>3</sub>:Eu<sup>2+</sup> and its composite are still being challenged by phosphor hydrolysis at high...
journal article 2020
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Patil, Adarsh (author)
Increasing tensions over global warming, talks about a sustainable future and a huge imbalance in closure of the carbon cycle indicate a response for developing efficient conversion of CO2 and syngas obtained from renewable sources. Thermochemical conversion of carbon oxides (CO and CO2) in combination with hydrogen to produce methanol in the...
master thesis 2020
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Driessen, W. (author), Van Veldhoven, J. T.A. (author), Janssen, M. P.M. (author), van Loosdrecht, Mark C.M. (author)
A long term operation (22 months) of the sidestream treatment plant at the water and resource recovery facility at the Tilburg sewage works in The Netherlands is presented. This plant treats dewatering reject liquor from thermally hydrolysed (THP) and mesophillic anaerobically digested (MAD) biosolids. The sidestream plant is comprised of a...
journal article 2020
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Consorti Bussamra, B. (author), Meerman, Paulus (author), Viswanathan, V. (author), Mussatto, Solange I. (author), Carvalho da Costa, Aline (author), van der Wielen, L.A.M. (author), Ottens, M. (author)
The enzymatic conversion of lignocellulosic material to sugars can provide a carbon source for the production of energy (fuels) and a wide range of renewable products. However, the efficiency of this conversion is impaired due to product (sugar) inhibition. Even though several studies investigate how to overcome this challenge, concepts on...
journal article 2020
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Ochs, Pascal (author), Martin, Benjamin D. (author), Germain, Eve (author), Stephenson, Tom (author), van Loosdrecht, Mark C.M. (author), Soares, Ana (author)
The benefits of deammonification to remove nitrogen from sidestreams, i.e., sludge dewatering liquors, in municipal wastewater treatment plants are well accepted. The ammonia removal from dewatering liquors originated from thermal hydrolysis/anaerobic digestion (THP/AD) are deemed challenging. Many different commercial technologies have been...
journal article 2020
Searched for: subject%3A%22Hydrolysis%22
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