Abstract: Water treatment plants are likely to experience problems such as the water level both in the filter cells and in the tanks tend to fluctuate widely. These create the potential for partial drainage, overflow, and potential initial turbidity breakthrough at the beginning of the filtration cycles. This paper presents a mathematical model for studying the process behavior of a water treat...

We report a wicking material based on nanostructured TiO2 (NST) for the application of flat heat pipes. Heat pipes adopt wicking materials to achieve some unique functions that thermal siphons could not achieve[1], and they have found their applications as cooling systems in a wide variety of areas such as spacecraft and electronics. Different kinds of materials such as carbon nanotubes[2], nan...

Walker-Smith, J. A., and Blomfield, J. (1973). Archives of Disease in Childhood, 48, 476. Wilson's disease or chronic copper poisoning? The case history is given of a child who presented at 14 months with ascites and was found to have severe micronodular cirrhosis with biochemical evidence of Wilson's disease, but in view of the severity of the pathology and early age of presentation, the possi...

Conventional wastewater collection systems are installed to remove human wastes from households in cities and urban areas. This system demands high water supply rates as the wastes are flushed through pipes using water that flows under gravity. This system is capital extensive, and has been found to be not suitable in urban areas with smaller population sizes. Also, for the same reason, not sui...

Environmental protection agencies strictly regulate the presence of PAHs in air, water, soil, industrial, and food because this group of chemicals varies in structure and toxicity. The analysis of drinking water for the presence of PAHs is important as coal tar is normally used to protect distribution pipes from corrosion and therefore can be considered the main source of PAHs in drinking water...

Pipes that transport drinking water through municipal drinking water distribution systems (DWDS) are challenging habitats for microorganisms. Distribution networks are dark, oligotrophic and contain disinfectants; yet microbes frequently form biofilms attached to interior surfaces of DWDS pipes. Relatively little is known about the species composition and ecology of these biofilms due to challe...

Organic phase change material (PCM) with macro-encapsulation is attractive in energy storage applications as it has relatively low cost. This study focuses on using PET plastic pipes to encapsulate paraffin and using low-cost float stones to increase the thermal conductivity of PCM modules as they have a special structure of high porosity. Float stones were immersed in the liquid PCM and an ult...

From May to June 2012, a waterborne outbreak of 124 cases of cryptosporidiosis occurred in the plumbing systems of an older high-rise apartment complex in Seoul, Republic of Korea. The residents of this apartment complex had symptoms of watery diarrhea and vomiting. Tap water samples in the apartment complex and its adjacent buildings were collected and tested for 57 parameters under the Korean...

Approximately 9,000 homes in Kenosha have a lead water service line that delivers fresh municipal water from the Kenosha Water Utility’s cast iron or plastic water mains located in public streets and rights of way, into individual homes that is used for drinking, bathing and cleaning. Th ese lead services lines that connect the fresh water mains to more than 9,000 families were installed prior ...