New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) Phase I system in July, 1997, and the Phase II system in August 1998 at a major international electronic disk manufacturing facility at Hokkaido Island located in Northern Japan. The VSEP is used for treatment of river water for ultrapure water production at this facility. The VSEP system uses an ultrafiltration membrane module and is able to treat river water in order to remove or reduce color, turbidity, permanganate consumption, and total iron below the required limits. The economics of installing this system are very attractive. The application of VSEP membrane technology to treat river water for ultrapure water production at electronic disk fabrication facilities is found to be an attractive economic alternative to conventional water treatment technology.
On the 6 September 2007, an oil spill from a fuel dump leaks into the beautiful Boyne River, County Louth, Ireland. Local wild fowl and their nesting areas are endangered, as is the local water supply. The coastguards deploy conventional booms to contain the spill but decide against the use of conventional chemical detergents because of the obvious damage to flora and fauna.
Drogheda Borough Council require a treatment that is 100% environmentally safe. They chooseNanobite Liquid, an inert, non-toxic and...
This paper addresses the modelling of the processes associated with acid mine drainage affecting the Trimpancho River basin, chosen for this purpose because of its location and paradigmatic hydrological, geological, mining and environmental contexts. By using physical-chemical indicators it is possible to define the contamination degree of the system from the perspective of an entire river basin, due to its reduced dimension. This allows an exhaustive monitoring of the study area, considering the particularity...
The decay rates of enteric waterborne pathogens were evaluated following the introduction of Yersinia enterocolitica, Salmonella enterica, Campylobacter jejuni and Arcobacter butzleri into river water at different temperatures (5, 15 and 25°C) for a period of 28 days. To improve the accuracy of the results a molecular viability assay, long amplicon propidium monoazide-polymerase chain reaction (PMA-PCR), was used to quantify the viable cell concentration and results from PCR with and without PMA were compared. As...
The Austrian waterway management has introduced an automatic system to monitor a series of barges, which calculates the dredged material as a basis for handling invoices of the dredging companies. Before converting to a remote data transmission option, all calculations were entered manually. The datalogger saves the cost for hand-writing documentation of the dredging works by external staff and guarantees an automatic and standardized procedure of cubature calculations. Technology used: OTT NetDL DataloggerOTT...
Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual measurements.Therefore it was decided to modernize the station completely and to install a stationary discharge measuring system. The challenge of the measurement situation was to find a solution that measures reliably at all water levels from a low level of 29...
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