Tom N.P. Bosma

Tom N.P. Bosma
Deltares / Wageningen University & Research

PhD
PFAS biodegradation and toxicity, looking for project partners Dehalogenation in marine sediments

About

51
Publications
4,001
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,931
Citations
Citations since 2017
5 Research Items
289 Citations
20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060
Introduction
Current research: the biodegradation & toxicity of environmental pollutants, especially PFAS constituents, under various environmental conditions. Characterization of the microbial populations involved and the use of probing techniques to establish and quantify in-situ biodegradation.
Additional affiliations
November 2014 - present
Wageningen University & Research
Position
  • Guest Scientist
April 2003 - December 2014
Utrecht University
Position
  • Laboratory Manager
October 1996 - April 2008
TNO
Position
  • Research Officer
Description
  • Various Research Projects: Biodegradaton of organic pollutants in water & soil; development of decision making systems for bioremediation & natural attenuation; Reconstruction of the pollution history of lake sediments.
Education
August 1986 - September 1992
Independent Researcher
Independent Researcher
Field of study
  • Environmental Microbiology
September 1980 - June 1986
Independent Researcher
Independent Researcher
Field of study
  • Biology

Publications

Publications (51)
Article
Full-text available
Organohalide respiration (OHR), catalysed by reductive dehalogenases (RDases), plays an important role in halogen cycling. Natural organohalides and putative RDase-encoding genes have been reported in Aarhus Bay sediments, however, OHR has not been experimentally verified. Here we show that sediments of Aarhus Bay can dehalogenate a range of organo...
Article
Full-text available
Chloroform (CF) is an environmental contaminant that can be naturally formed in various environments ranging from forest soils to salt lakes. Here we investigated CF removal potential in sediments obtained from hypersaline lakes in Western Australia. Reductive dechlorination of CF to dichloromethane (DCM) was observed in enrichment cultures derived...
Preprint
Full-text available
Chloroform (CF) is an environmental contaminant that can be naturally formed in various environments ranging from forest soils to salt lakes. Here we investigated CF removal potential in sediments obtained from hypersaline lakes in Western Australia. Reductive dechlorination of CF to dichloromethane (DCM) was observed in enrichment cultures derived...
Article
Full-text available
1,2-Dichloroethane (1,2-DCA) is one of the most abundant manmade chlorinated organic contaminants in the world. Reductive dechlorination of 1,2-DCA by organohalide-respiring bacteria (OHRB) can be impacted by other chlorinated contaminants such as chloroethenes and chloropropanes that can co-exist with 1,2-DCA at contaminated sites. The aim of this...
Article
Full-text available
Purpose The desorption behaviour of 16 polycyclic aromatic hydrocarbons (PAHs) in sludges from two sites of the port of Rotterdam, The Netherlands, which are designated to be stored in a subaqueous sludge depository, was investigated after a storage time of 14 years at 4 °C under anaerobic conditions in the dark, mimicking depository conditions. Su...
Article
Neisseria meningitidis is a common and usually harmless inhabitant of the mucosa of the human nasopharynx, which, in rare cases, can cross the epithelial barrier and cause meningitis and sepsis. Biofilm formation favours the colonization of the host and the subsequent carrier state. Two different strategies of biofilm formation, either dependent or...
Data
Neisseria meningitidis is a common and usually harm-less inhabitant of the mucosa of the human nasophar-ynx, which, in rare cases, can cross the epithelial barrier and cause meningitis and sepsis. Biofilm for-mation favours the colonization of the host and the subsequent carrier state. Two different strategies of biofilm formation, either dependent...
Article
Full-text available
For decades, polycyclic aromatic hydrocarbons (PAH) cause great concern as environmental pollutants. Especially river and marine harbour sediments are frequently polluted with PAH derived from surface runoff, fuel and oil spills due to shipping and industrial activities, industrial waste and atmospheric deposition. Harbour sediments contain large a...
Chapter
Microorganisms play an important role in the removal of synthetic organic compounds from the environment. This chapter gives an overview of the evolution of biodegradation pathways and describes the strategies that microorganisms have evolved to transform important molecular structures. The actual effectiveness of biodegradation in the environment...
Article
Full-text available
Uses of a mixture of six volatile fatty acids (VFAs) including acetic, propionic, butyric, isobutyric, valeric and isovaleric acids as electron donors for the reductive dechlorination of chloroethenes have been investigated by both microcosm and column studies. The fates of tetrachloroethene (PCE), cis-dichloroethene (cis-DCE) and vinyl chloride (V...
Article
A hypothesis was modeled to account for complex 20-day dynamics in a culture of blue-green algae Microcystis and heterotrophic bacteria exposed to 2,4-dinitrophenol (DNP). In trials with little or no added DNP, a limiting factor (light or CO(2)) may cause algal density to fluctuate after 14 days of increase. Such factors may be unimportant at level...
Article
Full-text available
The dissolved hydrogen concentrations under various redox processes were investigated based on batch experiments. Chloroethenes including tetrachloroethene (PCE), cis-dichloroethene (cis-DCE) and vinylchloride (VC) were respectively used as culture substrates. For each chloroethene, a series of bottles were prepared with the additions of different...
Article
The need to understand important factors affecting the spread of bacteria in groundwater aquifers is evident for fields as diverse as drinking water safety or environmental engineering concerned with bioremediation of polluted sites. For example, increasing concentrations of dissolved minerals tend to increase the deposition efficiency of bacteria...
Article
Full-text available
An investigation on the biotransformation of 1,2-dichloroethane (1,2-DCA) in anaerobic groundwater on an industrially polluted site and in the laboratory revealed that reductive, fermentative, and oxidative pathways are involved in the natural attenuation of 1,2-DCA. The stimulation of reductive or oxidative 1,2-DCA transformation in anaerobic aqui...
Article
The plume in the aquifer of an industrial cleaning company's site in Arnhem, the Netherlands, was investigated for redox conditions, and compounds which drive the anaerobic dechlorination of chlorinated aliphatic hydrocarbons (CAH). This study was conducted as the volatile CAH-contaminated site was proven to have a high potential for natural attenu...
Article
A soil from a former chemical redistribution company, contaminated with mainly chlorinated aliphatics, was studied for bioremediation purposes. Groundwater analyses revealed that the original pollutants, i.e. tetrachloroethene (PCE) and trichloroethene (TCE), were present at levels ranging from 2.3 to 122 mg/L. Dichloroethene (DCE), vinylchloride (...
Article
The biotransformation of 3-chlorobenzoate (3CB) by attached cells of Pseudomonas sp. strain B13 was studied in percolation columns operated at various flow rates and biomass contents. Steady-state residual effluent concentrations were compared with predictions from spreadsheet models describing the combined action of microbial and mass transfer kin...
Article
Travel distances of bacteria in groundwater aquifers often exceed predictions based on filtration theories. These findings have mostly been ascribed to structural heterogeneities in the subsurface, but variations in the adhesive properties within the microbial populations have been observed too. In laboratory experiments with Pseudomonas sp. strain...
Article
A soil from a former chemical redistribution company, contaminated with mainly chlorinated aliphatics, was studied for bioremediation purposes. Groundwater analyses revealed that the original pollutants, i.e. tetrachloroethene (PCE) and trichloroethene (TCE), were present at levels ranging from 2.3 to 122 mg/L. Dichloroethene (DCE), vinylchloride (...
Article
The biotransformation of 3-chlorobenzoate (3CB) by attached cells of Pseudomonas sp. strain B13 was studied in percolation columns operated at various flow rates and biomass contents. Steady-state residual effluent concentrations were compared with predictions from spreadsheet models describing the combined action of microbial and mass transfer kin...
Article
Full-text available
Organic pollutants in soil can be removed by biotechnological treatment. A limitation of this technology is the efficiency of biodegradation. In many cases, the bulk of the pollution can be removed but residual pollutants remain and biodegradation rates are slower than expected from laboratory trials. Low biodegradation rates are often a result of...
Article
Biotransformation is controlled by the biochemical activity of microorganisms and the mass transfer of a chemical to the microorganisms. A generic mathematical concept for bioavailability is presented taking both factors into account. The combined effect of mass transfer of a substance to the cell and the intrinsic activity of the cell using the su...
Article
Biotransformation is controlled by the biochemical activity of microorganisms and the mass transfer of a chemical to the microorganisms. A generic mathematical concept for bioavailability is presented taking bath factors into account. The combined effect of mass transfer of a substance to the cell and the intrinsic activity of the cell using the su...
Article
Full-text available
The minimum substrate concentration required for growth, Smin, was measured for Pseudomonas sp. strain B13 with 3-chlorobenzoate (3CB) and acetate in a recycling fermentor. The substrates were provided alone or in a mixture. Smin values predicted with kinetic parameters from resting-cell batches and chemostat cultures differed clearly from the valu...
Article
Laboratory column experiments were performed to evaluate the fate of a series of chlorinated and nonchlorinated organic contaminants in Rhine sediment and in sediment from the infiltration area of the Municipal Water Works of Amsterdam, near Zandvoort, The Netherlands. Columns were operated under aerobic, denitrifying, the methanogenic conditions....
Chapter
The discussion in the session was based on the statement papers of the participants. The most important conclusions from the papers and the discussion are summarized below.
Chapter
Organic pollutants can be removed from soil by means of biological treatment. A major problem in the application of these treatments is the efficiency of biodegradation in soil. The bulk of the pollution can often be removed but certain residual amounts remain unaltered (19, 22). In addition, biodegradation rates are often much slower than expected...
Article
Transformation of hexachloro-1,3-butadiene were studied in columns packed with Rhine River sediment and in batch incubations containing titanium(III) citrate and hydroxocobalamin. Columns were operated under various redox conditions. Transformation was observed in a methanogenic column at influent concentrations of 4 and 400 nmol/L but not in colum...
Article
Full-text available
Hydrophobic organic contaminants like DDT, Polychlorobiphenyls (PCB's) and polyaromatic hydrocarbons (PAH's), have been detected all over the world. They tend to accumulate in the atmosphere and in the soil as a result of their physical and chemical properties. Breakdown mainly proceeds by (photo)chemical reactions in the atmosphere and via microbi...
Article
Full-text available
Soil column experiments were performed to obtain insight in the different biological and physico-chemical processes affecting biodegradation of halogenated compounds under natural conditions in a water infiltration site. Lower chlorinated aromatic compounds could be degraded under aerobic conditions, whereas highly chlorinated compounds and chlorin...
Chapter
Full-text available
Microbial transformation of chlorinated organic contaminants in columns, packed with sediment from a dune infiltration area and from River Rhine, has been investigated under different redox conditions. Low redox potentials favour reductive dechlorination of chlorinated ethylenes and benzenes to lower or non-chlorinated compounds. Under aerobic cond...
Article
In this paper a model is presented which can be used to simulate the behaviour of xenobiotic chemicals in soil columns with respect to their physical and chemical properties. Terms describing biological transformation of xenobiotics are also included in the model. It incorporates microbial growth following Monod kinetics and a chemotactic response...
Article
All three isomers of trichlorobenzene were reductively dechlorinated to monochlorobenzene via dichlorobenzenes in anaerobic sediment columns. The dechlorination was specific: 1,2,3- and 1,3,5-trichlorobenzene were solely transformed to 1,3-dichlorobenzene, while 1,4-dichlorobenzene was the only product of 1,2,4-trichlorobenzene transformation. Micr...
Article
All three isomers of trichlorobenzene were reductively dechlorinated to monochlorobenzene via dichlorobenzenes in anaerobic sediment columns. The dechlorination was specific: 1,2,3- and 1,3,5-trichlorobenzene were solely transformed to 1,3-dichlorobenzene, while 1,4-dichlorobenzene was the only product of 1,2,4-trichlorobenzene transformation. Micr...
Article
Chlorinated compounds are released into the environment due to their widespread industrial, agricultural and domestic use. Many of these compounds are present at low concentrations in water and soil samples and seem to be persistant. In our laboratory, sediment column experiments (Fig. 1) were designed in order to investigate the bio-transformation...

Network

Cited By

Projects

Project (1)
Project
- isolation and characterisation of strains degrading 1,2-dichloroethane - modelling of reactive transport