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Marktverkenning en haalbaarheidsstudie Nereda®-alginaat en -granulaat [Boek]
Dit rapport beschrijft de resultaten van een studie naar veelbelovende mogelijkheden voor de afzet van gedroogde Nereda® korrels, in de vorm van granulaat en als een uit de korrel geëxtraheerde alginaat-achtig polysacharide (ALE). ALE wordt ook wel N ...
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Impact of cell cluster size on apparent half-saturation coefficients for oxygen in nitrifying sludge and biofilms \ Water research : the journal of the International Association on Water Quality [Artikel]
A three-dimensional (3-D) diffusion-reaction model was used to assess the effects of nitrifiers growing in cell clusters on the apparent oxygen half-saturation coefficients in activated sludge flocs. The model allows conciliation of seemingly contrad ...
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Denitrification of nitrate and nitrite by ‘Candidatus Accumulibacter phosphatis’ clade IC \ Water research : the journal of the International Association on Water Quality [Artikel]
Phosphate accumulating organisms (PAO) are assumed to use nitrate as external electron acceptor, allowing an efficient integration of simultaneous nitrogen and phosphate removal with minimal organic carbon (COD) requirements. However, contradicting f ...
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Effects of the residual ammonium concentration on NOB repression during partial nitritation with granular sludge \ Water research : the journal of the International Association on Water Quality [Artikel]
Partial nitritation was stably achieved in a bench-scale airlift reactor (1.5L) containing granular sludge. Continuous operation at 20 °C treating low-strength synthetic wastewater (50 mg N-NH4+/L and no COD) achieved nitrogen loading rates of 0.8 g ...
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Full-Scale Highly-Loaded Wastewater Treatment Processes (A-Stage) to Increase Energy Production from Wastewater: Performance and Design Guidelines \ Environmental engineering science [Artikel]
Current practice of wastewater treatment does not recover the full potential of energy present in wastewater. The potential of using anammox bacteria for autotrophic nitrogen removal combined with a desire for energy optimization brings new attention ...
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Prevalence of ‘Candidatus Accumulibacter phosphatis’ type II under phosphate limiting conditions \ AMB Express [Artikel]
P-limitation in enhanced biological phosphorus removal (EBPR) systems fed with acetate, has generally been considered as a condition leading to enrichment of organisms of the genotype’ Candidatus Competibacter phosphatis’ expressing the glycogen-accu ...
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Effect of water temperature on biofouling development in reverse osmosis membrane systems \ Water research : the journal of the International Association on Water Quality [Artikel]
Understanding the factors that determine the spatial and temporal biofilm development is a key to formulate effective control strategies in reverse osmosis membrane systems for desalination and wastewater reuse. In this study, biofilm development was ...
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Vivianite as an important iron phosphate precipitate in sewage treatment plants \ Water research : the journal of the International Association on Water Quality [Artikel]
Iron is an important element for modern sewage treatment, inter alia to remove phosphorus from sewage. However, phosphorus recovery from iron phosphorus containing sewage sludge, without incineration, is not yet economical. We believe, increasing the ...
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Bacterial community structure and variation in a full-scale seawater desalination plant for drinking water production \ Water research : the journal of the International Association on Water Quality [Artikel]
Microbial processes inevitably play a role in membrane-based desalination plants, mainly recognized as membrane biofouling. We assessed the bacterial community structure and diversity during different treatment steps in a full-scale seawater desalina ...
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Large-scale demonstration of the sulfate reduction autotrophic denitrification nitrification integrated (SANI®) process in saline sewage treatment \ Water research : the journal of the International Association on Water Quality [Artikel]
Recently, the Sulfate reduction Autotrophic denitrification Nitrification Integrated (SANI®) process was developed for the removal of organics and nitrogen with sludge minimization in the treatment of saline sewage (with a Sulfate-to-COD ratio > 0.5 ...
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PHA production from the organic fraction of municipal solid waste (OFMSW): overcoming the inhibitory matrix \ Water research : the journal of the International Association on Water Quality [Artikel]
Leachate from the source separated organic fraction of municipal solid waste (OFMSW) was evaluated as a substrate for polyhydroxyalkanoates (PHA) production. Initially, the enrichment step was conducted directly on leachate in a feast-famine regime. ...
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Development and characterization of 3D-printed feed spacers for spiral wound membrane systems \ Water research : the journal of the International Association on Water Quality [Artikel]
Feed spacers are important for the impact of biofouling on the performance of spiral-wound reverse osmosis (RO) and nanofiltration (NF) membrane systems. The objective of this study was to propose a strategy for developing, characterizing, and testin ...
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Respirometric characterization of aerobic sulfide, thiosulfate and elemental sulfur oxidation by S-oxidizing biomass \ Water research : the journal of the International Association on Water Quality [Artikel]
Respirometry was used to reveal the mechanisms involved in aerobic biological sulfide oxidation and to characterize the kinetics and stoichiometry of a microbial culture obtained from a desulfurizing biotrickling filter. Physical–chemical processes s ...
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Identifying N2O formation and emissions from a full-scale partial nitritation reactor \ Water research : the journal of the International Association on Water Quality [Artikel]
In this study, N2O formation and emissions from a full-scale partial nitritation (SHARON) reactor were identified through a three-weeks monitoring campaign during which the off-gas was analysed for N2O, O2, CO2 and NO. The overall N2O emission was 3. ...
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