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[en] Drinking Water Treatments Plants (DWTP) provide safe, high quality drinking water through different unit processes. Designed to comply with legislation requirements, they have to deal with an increasingly changing environment, water qualities, process automation, higher quality standards or new treatments, among others.
[en] On 28th July 2010, the United Nations General Assembly recognized the human right to water and sanitation, declaring that clean drinking water and sanitation are essential to fulfil all human rights. In September 2015, the same assembly announced the Sustainable Development Goals (SDG) in order to “end poverty in all its forms” by the action plan called 2030 Agenda. Goal number 6 aims to “Ensure availability and sustainable management of water and sanitation for all”.
[en] Drinking water treatment plants (DWTPs) need to produce water under specific quality regulations. It is well known that natural organic matter (NOM) represents the most challenging factor that affects processes optimization.
[en] The radon concentration has been measured in 44 drinking water resources, in villages nearby Lalehzar fault in winter 2014. Some samples showed a higher concentration of radon surpassing limit set by EPA. Further, a sample was taken from water distribution networks for these sources of water. Soluble radon concentration was measured by RAD7 device. Range radon concentration was 26.88 and 0.74 BqL-1 respectively. The maximum and minimum annual effective dose for adults was estimated at 52.7 and 2.29 µSvY-1, respectively. Reducing radon from water before use is recommended to improve public health. (author)
[en] Mauritania, located in the southwestern Sahara in northwestern Africa, is about 1.04 million square km in size. The country has 592 km of coastline on the Atlantic Ocean. Mauritania is predominantly desert, and much of the country receives less than 300 mm per year of rainfall. For supply water, the country highly depends on surface water in the south from the Senegal River, which is shared by Guinea, Mali and Senegal, or on the utilization of groundwater. In the capital Nouakchott, where one quarter of the country's population lives, daily water delivery is about 50 000 m3, far below the estimated base line of 95 000 m3 (FAO, 2002). The available surface water is irregular in quantity and the quality is under threat since groundwater is suspected to be affected by pollution and salt intrusion. The supply of potable water is thus one of the priorities for economic and social development in the country
[en] Our modern, globalised world presents us an uneven picture regarding access to and efficient use of water. Even as the global trend towards water scarcity is shared by both hemispheres alike, the rich west remains fundamentally well supplied, its access to clean water all but guaranteed.
[en] The digital transformation and the application of tools based on Internet of Thing (IoT), Big Data and Data Analytics have had a significant impact upon all the industrial sectors, including the water industry overall and the hydraulic modeling of the water supply systems in particular. The deployment of these new technologies adds an extra step to the hydraulic models and simulations in terms of accuracy and reality approximation. They become a more practical and efficient component for the management of drinking water networks.
[en] Objective: To study the influence of crosstalk phenomenon on the measurement of gross radioactivity in drinking water. Methods: The gross activity in different standard materials with different thickness and area was measured using national standard method. Results: There was no obvious change in crosstalk factor with the increase of "2"4"1Am powder amount in the measurement, whereas the larger amount of uranium used might lead to larger crosstalk factor. The different measurement channels resulted in different crosstalk factors. The influence of beta radioactivity on alpha radioactivity measurement was significant. On the contrary, the alpha-to-beta crosstalk factor was negligible. The area of sample plate imposed no significant influence on crosstalk factor. Conclusions: The gross beta activity can be corrected to decrease the influence of alpha radioactivity using powder standard samples, when simultaneous alpha and beta counting mode is applied in measurement grass radioactivity in drinking water. (authors)
[en] The purpose of this work is the development of sustainable colorimetric sensors for the detection of toxins in drinking water. These sensors are based on azulene and guaiazulene, two molecules with unique optical and chemical properties.