background: rivers and streams are important sources of surface waters. water quality of these resources depends on many factors including hydrologic, physicochemical and biological factors. these resources are important in terms of social, economic and political development.. zayanderood river is the only river in central basin of iran that has permanent fresh water. this river has an importan...

the problems of shortages and quality deterioration of water, have led to an increased interest in the reuse of treated grey water in many parts of the world. this study examined the suitability of locally available materials (beach sand, oyster shells, and charcoal) to treat grey water samples collected weekly from three halls of residence (unity hall, africa hall, and independence hall) on kw...

Water quality sampling and monitoring are fundamental to water environmental protection. The purpose of this study was develop a multi-parameter system mounted on multi-rotor unmanned aerial vehicle (UAV). consisted the UAV, detection device, path planning algorithm. device composed rotating drum, direct current (DC) reduction motor, suction hose, high-pressure isolation pump, bottles, microcon...

Diagnosis of water quality can be assessed through toxicity tests and by analyzing the negative effects of water quality parameters. Such diagnosis provides an indicator of the condition of the shrimp 1 Report on PhD thesis. Graduated: José Juan Carbajal Hernández, Advisor: Luis Pastor Sánchez Fernández. Graduation date: 28/07/2010. ecosystem. In this research, three models for water quality di...

A computer-aided multivariate water quality index is developed based on partial least squares (PLS) regression. The index is termed as the partial least squares water quality index (PLS-WQI). Briefly, a training set was computationally generated based on the guideline of National Water Quality Standards for Malaysia (NWQS) to predict the water quality. The index is benchmarked with the well-est...

drinking water quality can be deteriorated by microbial and toxic chemicals during transport, storage and handling before using by the consumer. this study was conducted to evaluate the microbial and physicochemical quality of drinking water from bottled water coolers.a total of 64 water samples, over a 5-month period in 2012-2013, were collected from free standing bottled water coolers and wat...