Mark Barjenbruch

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Natural methods such as lagoon plants are often a reasonable and economically interesting alternative to the technically intensified methods, particularly in rural areas with connection sizes up to a maximum of 5,000 PE. In the last 30 years, numerous analyses yielded information about the biological degradation in natural wastewater treatment plants, on(More)
The anaerobic stabilization process depends - among other things - on the bio-availability of organic carbon. Through pre-treatment of the sludge which leads to the destruction of micro-organisms and to the setting-free of cell content substances (disintegration), the carbon can be microbially converted better and faster. Moreover, effects on the digestion(More)
Through increasing central development and through the decrease of specific wastewater production, wastewater systems are more and more prone to odour and corrosion problems. Hydrogen sulphide is produced, particularly in anaerobic flow stretches, which will then escape at turbulent places because of change in the flow direction and create odour harassment.(More)
This article presents full scale experience of one of the largest fish-processing factories in Europe with a production capacity of about 50,000 tons herring per year and a maximum daily wastewater discharge of 1,500 m(3). The wastewater treatment plant is the only direct discharger in the fish-processing industry in Germany. Thus, very low effluent values(More)
For membrane bioreactors (MBR) with enhanced nutrients removal, rather complex recirculation schemes based on the biological requirements are commonly recommended. The aim of this work was to evaluate other recirculation options. For a laboratory scale MBR, four different recirculation schemes were tested. The MBR was operated with COD degradation,(More)
The disinfection performance of three subsurface flow constructed wetlands (SSF), a free-water surface-constructed wetland and three ponds were investigated. They functioned as advanced treatment stage following treatment in a large municipal wastewater treatment plant equipped with nutrient removal. Despite low influent concentrations of 10(3.9)/100 mL,(More)
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