Searched for: subject%3A%22humics%22
(1 - 17 of 17)
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Pavez Jara, J.A. (author), Iswarani, W.P. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Thermal hydrolysis process (THP) is a widely used pre-treatment method in the anaerobic digestion (AD) of waste municipal sewage sludge. A post AD dewatering step of the digestate produces a liquid stream called reject water. THP increases the concentration of humic substances (HSs) and nutrients in the produced reject water. Struvite...
journal article 2024
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Pavez Jara, J.A. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Thermal hydrolysis process (THP) is a well-established anaerobic digestion (AD) pre-treatment technology. Despite the THP benefits the pre-treatment increases the concentrations of nutrients and melanoidins in the digestate reject water after dewatering. The increased concentrations of nutrients and melanoidins formed during THP-AD can impact...
journal article 2023
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Bhatia, Ranjeev (author)
This study aims to explore hydrogen production via alkaline water electrolysis using municipal effluent. The experiments were conducted in a flow cell electrolyzer using carbon fibre and Ni-foam as the anode, with another Ni-foam electrode employed as the cathode for all experiments. Synthetically prepared effluent and real municipal effluent...
master thesis 2022
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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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Mangal, M. Nasir (author), Salinas-Rodriguez, Sergio G. (author), Blankert, Bastiaan (author), Yangali-Quintanilla, Victor A. (author), Schippers, Jan C. (author), Van Der Meer, Walter G.J. (author), Kennedy, M.D. (author)
The role of phosphate and humic substances (HS) in preventing calcium carbonate scaling and their impact on antiscalant dose was investigated for a reverse osmosis (RO) system treating anaerobic groundwater (GW) (containing 2.1 mg/L orthophosphate and 6-8 mg/L HS). Experiments were conducted with the RO unit (treating anaerobic GW), and with...
journal article 2021
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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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Smith, Sanne (author)
This thesis aimed to elucidate the effects of dissolved organic matter on the applicability of electrocoagulation (EC) with iron electrodes for per- and polyfluorinated alkyl substances (PFAS) removal from landfill leachate. The research methodology consisted of an experimental and a computational part. Galvanostatic EC experiments were...
master thesis 2020
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Caltran, I. (author), Heijman, Sebastiaan (author), Shorney-Darby, H. L. (author), Rietveld, L.C. (author)
Natural organic matter (NOM) fractions cause problems in drinking water treatment and supply. In the North Sea region, anionic ion exchange (IEX) in non-fixed bed configurations has been considered for NOM removal in drinking water treatment plants. This paper discusses several experiences of the impact of anion IEX on NOM removal and on NOM...
journal article 2020
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Halvawala, Pooja (author)
The presence of organic and inorganic contaminants in aquatic ecosystem has been threat to public health and environment. To produce drinking water, removal of natural organic matter has been of importance due to formation of DBPs. Of the many available treatments, ion exchange (IEX) has the potential to remove natural organic matter (NOM)....
master thesis 2019
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Vaudevire, E.M.H. (author), Radmanesh, Farzaneh (author), Kolkman, Annemieke (author), Vughs, Dennis (author), Cornelissen, Emile (author), Post, Jan (author), van der Meer, W.G.J. (author)
The results of this sampling campaign on pilot scale processes aim to evaluate the occurrence and behavior of trace organic micro-pollutants and metal elements during anion exchange treatment of surface water and the subsequent treatment of generated spent brine with two types of electrodialysis membrane pairs. This knowledge is relevant to...
journal article 2019
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Elkalliny, A.S.M. (author), Rivandi, Alireza H. (author), Uzun, S. (author), van Ommen, J.R. (author), Nugteren, H.W. (author), Rietveld, L.C. (author), Appel, P.W. (author)
The rate of photocatalytic oxidation of contaminants in drinking water using an immobilized catalyst can be increased by properly designing the catalyst structure. By creating a solar reactor in which meshes coated with TiO<sub>2</sub> were stacked, we demonstrated that degradation of humic acids with four superimposed stainless steel meshes...
journal article 2019
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Zahmatkesh, M. (author)
In order to address the ambiguities and knowledge gaps in the HA removal by WRF, mechanisms of removal were explored in chapter 2. It was shown that the mechanisms of HA removal by WRF involves the degradation of HA to smaller molecules, conversion to FA and also biosorption of HA by fungal mycelia. Furthermore, the ability of laccase to...
doctoral thesis 2018
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Zahmatkesh, M. (author), Spanjers, H. (author), van Lier, J.B. (author)
In this study, we tested a new approach to facilitate the application of white rot fungi (WRF) under non-sterile conditions, by introducing grain sorghum as carrier and sole carbon and nutrient source for WRF. To this end, Trametes versicolor was immobilized on sorghum, and its ability to remove humic acid (HA) from synthetic and real...
journal article 2017
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Zahmatkesh, M. (author), van Lier, J.B. (author), Spanjers, H. (author)
This paper presents the results of fungal treatment of a real industrial wastewater (WW), providing insight into the main mechanisms involved and clarifying some ambiguities and uncertainties in the previous reports. In this regard, the mycoremediation potentials of four strains of white rot fungi (WRF): Phanerochaete chrysosporium, Trametes...
journal article 2017
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Zahmatkesh, M. (author), Spanjers, H. (author), Toran, M. J. (author), Blánquez, P. (author), van Lier, J.B. (author)
journal article 2016
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Azman, S. (author), Khadem, A.F. (author), Zeeman, G. (author), Van Lier, J.B. (author), Plugge, C.M. (author)
Humic compounds are inhibitory to the anaerobic hydrolysis of cellulosic biomass. In this study, the impact of salt addition to mitigate the inhibitory effects of humic compounds was investigated. The experiment was conducted using batch tests to monitor the anaerobic hydrolysis of cellulose in the presence of humic acid. Sodium, potassium,...
journal article 2015
Searched for: subject%3A%22humics%22
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