Natural Resources. The Future of Fresh Water

Natural Radioactivity of Drinking Water Resources in Arak, Iran

The activity concentrations of 235U, 232Th, 226Ra, 40K and 137Cs in ground and surface of drinking water resources in Iranian city of Arak were determined by gamma ray spectrometry with aHPGe detector setup, coaxial p type and 8192 channels MCA. The water samples differed in radioactivity content depending on their origin and place. In the ...

The Natural Degradation of Microcystins (Cyanobacterial Hepatotoxins) in Fresh Water – the Future of Modern Treatment Systems and Water Quality Improvement

The increasing occurrence of hepatotoxic cyanobacterial blooms in fresh waters is one of the most serious risks to human health in the 21 century. Therefore, proper management of waters contaminated with cyanobacteria requires elaboration of the appropriate methods to remove cyanobacterial hepatotoxins-microcystins (MCs) from the environment. Many chemical and physical procedures have been prop...

The Impact of Natural Resources on Innovation

N owadays, innovation considered as the most important factor, which can affect economic growth extraordinary. Therefore, investigating the effect of variables affecting innovation has priority. In this study, we try to investigate 1) the natural resource curse hypothesis and 2) the effect of institutional quality on the way in which natural resources affects innovation. To investiga...

Assessment of impacts of future climate change on water resources of the Hulu Langat basin using the swat model

Minimal time bioremediation of natural water resources

We study minimal time strategies for the treatment of pollution of large volumes, such as lakes or natural reservoirs, with the help of an autonomous bioreactor. The control consists in feeding the bioreactor from the resource, the clean output returning to the resource with the same flow rate. We first characterize the optimal policies among constant and feedback controls, under the assumption...