A5030143313- Anaerobic Digestion and Biogas Production
- Wastewater Treatment and Nitrogen Removal
- Microbial Fuel Cells and Bioremediation
- Microbial bioremediation and biosurfactants
- Microbial Community Ecology and Physiology
- Biofuel production and bioconversion
- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Microbial Metabolic Engineering and Bioproduction
- Toxic Organic Pollutants Impact
- Methane Hydrates and Related Phenomena
- Pharmaceutical and Antibiotic Environmental Impacts
- Environmental remediation with nanomaterials
- Chemical Reactions and Isotopes
- Energy, Environment, Agriculture Analysis
- Heavy metals in environment
- Environmental Conservation and Management
- Electrochemical sensors and biosensors
- Microbial metabolism and enzyme function
- Water Treatment and Disinfection
- Phosphorus and nutrient management
- Membrane Separation Technologies
- Electrochemical Analysis and Applications
- Atmospheric and Environmental Gas Dynamics
- Hydrocarbon exploration and reservoir analysis
Northumbria University
2020-2024
Newcastle University
2013-2024
Newcastle upon Tyne Hospital
2018-2020
Federal University of Agriculture
2020
University of Newcastle Australia
2011
Wageningen University & Research
1985-2009
New Mexico State University
2002
University of Groningen
1987-1995
Michigan State University
1986-1991
Swiss Federal Institute of Aquatic Science and Technology
1983-1990
Mass production and use of antibiotics antimicrobials in medicine agriculture have existed for over 60 years, has substantially benefited public health agricultural productivity throughout the world. However, there is growing evidence that resistance to (AR) increasing both benign pathogenic bacteria, posing an emerging threat environmental future. Although years from clinical data AR, almost no quantitative exist span increased industrial antibiotic 1950s present; i.e., might delineate...
A technique based on progressive fumigation was used to reduce soil microbial biodiversity, and the effects of such reductions upon stability key processes were measured. Mineral samples from a grassland fumigated with chloroform for up 24 h then incubated 5 months allow recolonisation by surviving organisms. The diversity cultivable non‐cultivable bacteria, protozoa nematodes progressively reduced increasing times, as number trophic groups, phyla within taxa phyla. Total biomass similar...
The wastewater industry is facing a paradigm shift, learning to view domestic not as waste stream which needs be disposed of but resource from generate energy. extent that strategically important question. only previous published measurement the internal chemical energy measured 6.3 kJ/L. It has long been assumed content in relates directly oxygen demand (COD). However there no standard relationship between COD and content. In this study new methodology preparing samples for measuring...
Abstract Background Microbial-driven decomposition of plant residues is integral to carbon sequestration in terrestrial ecosystems. Actinobacteria , one the most widely distributed bacterial phyla soils, are known for their ability degrade vitro. However, situ importance and specific activity across contrasting ecological environments not known. Here, we conducted three field experiments with buried straw combination microcosm 13 C-straw paddy soils under different soil fertility levels...
Abstract The lack of microbial genomes and isolates from the deep seabed means that very little is known about ecology this vast habitat. Here, we investigate energy carbon acquisition strategies communities three petroleum seeps (3 km water depth) in Eastern Gulf Mexico. Shotgun metagenomic analysis reveals each sediment harbors diverse chemoheterotrophs chemolithotrophs. We recovered 82 metagenome-assembled affiliated with 21 different archaeal bacterial phyla. Multiple encode enzymes for...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGibbs free energy of formation halogenated aromatic compounds and their potential role as electron acceptors in anaerobic environmentsJan Dolfing B. Keith HarrisonCite this: Environ. Sci. Technol. 1992, 26, 11, 2213–2218Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November 1992https://pubs.acs.org/doi/10.1021/es00035a021https://doi.org/10.1021/es00035a021research-articleACS...
Flocculation of soil-derived dissolved organic carbon (DOC) was used as a tool to study the molecular size distribution DOC and native amount copper bound different fractions. extracted from arable soils that had received varying amounts animal manure, inorganic fertilizer, or CuSO4. Addition calcium extracts resulted in flocculation up 50% originally present samples. High performance exclusion chromatography (HPSEC) analysis revealed removed mainly consisted high weight (HMW) acids. Low...
Summary Changes in communities of syntrophic acetate‐oxidizing bacteria (SAOB) and methanogens caused by elevated ammonia levels were quantified laboratory‐scale methanogenic biogas reactors operating at moderate temperature (37°C) using quantitative polymerase chain reaction (qPCR). The experimental reactor was subjected to gradually increasing (0.8–6.9 g NH 4 + ‐N l −1 ), whereas the level control kept low (0.65–0.90 ) during entire period operation (660 days). Acetate oxidation reactor,...
Abstract Debate exists about whether agricultural versus medical antibiotic use drives increasing resistance (AR) across nature. Both sectors have been inconsistent at stewardship, but it is unclear which sector has most influenced acquired AR on broad scales. Using qPCR and soils archived since 1923 Askov Experimental Station in Denmark, we quantified four broad-spectrum β-lactam genes (ARG; bla TEM , SHV OXA CTX-M ) class-1 integron ( int 1) from manured (M) inorganic fertilised (IF)...
Deep subsurface formations (for example, high-temperature oil reservoirs) are candidate sites for carbon capture and storage technology. However, very little is known about how the microbial community would respond to an increase in CO2 pressure resulting from storage. Here we construct microcosms mimicking reservoir conditions (55 °C, 5 MPa) using samples. Methanogenesis occurs under both high low microcosms. accelerates rate of methanogenesis more than twice that conditions. Isotope tracer...
Abstract The potential benefits of applying microbial electrolysis cell (MEC) technology to wastewater treatment are clear and profound. Previous pilot studies have demonstrated a ‘proof concept' with domestic waste at ambient temperatures, but not yet treated required discharge standards, reached energy neutrality. In addition, these reactors been many orders magnitude smaller than would be needed for full scale plants. Scale‐up affects the parameters that underpin performance;...