Defluoridation of Algerian Drinking Water by Precipitation and Adsorption Methods

2014 ◽  
Vol 641-642 ◽  
pp. 365-370
Author(s):  
Samia Achour ◽  
Leila Youcef
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
The Other ◽  
Fluoride Removal ◽  
Removal Capacity ◽  
North Eastern ◽  
Activated Bentonite ◽  
Western Algeria ◽  
The One

The aim of the study was to investigate performance of precipitation and adsorption methods in removing excessive fluoride from water samples collected from Algerian North-Eastern Sahara. Defluoridation processes were conducted using one the one hand lime and on the other hand a raw and activated bentonite from western Algeria. Results showed that high lime dosage was needed to achieve treatment but the presence of high levels of magnesium was beneficial for the defluoridation. Activated bentonite had higher fluoride removal capacity than raw bentonite and resulted in residual fluoride concentrations well within recommended standards. Both defluoridation methods were dependent on inorganic quality of tested waters.

Temporal variability of disinfection by-products concentration in urban public water system

2013 ◽  
Vol 14 (4) ◽  
pp. 393-398
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Temporal Variability ◽  
Water System ◽  
The Other ◽  
Major Constituent ◽  
System P ◽  
Public Water System ◽  
Drinking Water Samples ◽  
By Products

The occurrence of trihalomethanes (THMs) was studied in the drinking water samples from urban water supply network of Karachi city that served more than 18 million people. Drinking water samples were collected from 58 locations in summer (May-August) and winter (November-February) seasons. The major constituent of THMs detected was chloroform in winter (92.34%) and summer (93.07%), while the other THMs determined at lower concentrations. Summer and winter concentrations of total THMs at places exceed the levels regulated by UEPA (80 μg l-1) and WHO (100 μg l-1). GIS linked temporal variability in two seasons showed significantly higher median concentration (2.5%-23.06%) of THMs compared to winter.

scholarly journals Burnout in Professional Caregivers and Quality of Life in Institutionalized Center Residents

2013 ◽  
Vol 4 (1) ◽  
pp. 41-53
Author(s):  
Juan P. Martínez ◽  
Inmaculada Méndez ◽  
Esther Secanilla ◽  
Ana Benavente ◽  
Julia García Sevilla
Keyword(s):  
Quality Of Life ◽  
Ad Hoc ◽  
Maslach Burnout Inventory ◽  
The Other ◽  
People With Dementia ◽  
Professional Caregiver ◽  
The One ◽  
Shed Light ◽  
Professional Accomplishment

Starting from previous studies in professional caregivers of people with dementia and other diseases in institutionalized centers of different regions, the aim of this study was to compare burnout levels that workers present depending on the center, to create a caregiver profile with high professional accomplishment and to describe the quality of life that residents perceive Murcia and Barcelona. The instruments used were the Maslach Burnout Inventory (MBI), the Professional Caregiver Survey developed ad hoc and the Brief Questionnaire of Quality of Life (CUBRECAVI in Spanish) on residents. The results show, on the one hand, that levels of professional accomplishment may be paradoxically higher in the case of catastrophe and, on the other hand, the 98.2% of users are satisfied with the residence in which is located and 81.8% with the manner in which occupy the time. The conclusions that are extrapolated from the study shed light on the current situation of workers and residents and the influence that an earthquake can have on them.

PROBLEMS OF QUALITY AND SAFETY OF BOTTLED DRINKING WATER

2018 ◽  
Author(s):  
Л.И. АМБАРЦУМЯН ◽  
Е.Н. ГУБА ◽  
М.В. ГУСЕВА ◽  
С.Н. ДИЯНОВА ◽  
В.В. ИЛЛАРИОНОВА
Keyword(s):  
Drinking Water ◽  
Chemical Composition ◽  
Water Samples ◽  
Quality And Safety ◽  
Testing Laboratory ◽  
Bottled Drinking Water ◽  
Microelement Composition ◽  
Microbiological Indicators

Проведены исследования качества 12 образцов питьевой бутилированной воды в условиях аккредитованной испытательной лаборатории. Исследование информативности маркировки образцов воды выявило, что не все производители выполняют требования ТР ТС 022/2011. Дана оценка органолептических, физико-химических и микробиологических показателей питьевой воды. Определены критерии безвредности химического состава образцов. Исследован макро- и микроэлементный состав. Выявлена необходимость повышения степени ответственности производителей при формировании качества. The quality of 12 samples of bottled drinking water was studied in an accredited testing laboratory. The study of informative labeling of water samples revealed that not all manufacturers fulfill the requirements of TR TS 022/2011. The evaluation of organoleptic, physicochemical and microbiological indicators of drinking water is given. Criteria of harmlessness of the chemical composition of samples are defined. It is investigated macro- and microelement composition of drinking water. The necessity to increase the degree of responsibility of producers in the formation of quality is revealed.

scholarly journals Hydrothermal treatment of sprout-damaged grain: I. Effects on the technological quality of wheat

1978 ◽  
Vol 50 (3) ◽  
pp. 240-253
Author(s):  
Christina Westermarck-Rosendahl ◽  
Hannu Salovaara
Keyword(s):  
Amylase Activity ◽  
The Other ◽  
Processing Conditions ◽  
Falling Number ◽  
Gluten Quality ◽  
Heat Treated ◽  
Technological Quality ◽  
The One ◽  
Increasing Temperature

Two sprout-damaged wheat lots with the falling number values of 91 and 65 were heat-treated by immersing the grain in water of temperatures of 80, 85, 90 and 100°C, followed by rapid chilling in water. The purpose of the treatment was to suppress the excess a-amylase activity in the outer layers of the kernels. The a-amylase activity following the treatment was measured by the falling number test. The increase in the falling number value was the greater the longer the treatment lasted and the higher the water temperature was. Processing lasting 30 sec at 80, 85, 90 and 100°C increased the falling number value of the one lot from 91 to 105, 117, 133 and 238 and of the other lot from 65 to 69, 70, 98, 163, respectively. As the falling numbers increased the wet gluten content of the samples decreased. These changes had a negative correlation. The gluten quality showed heat damage when the amount of gluten had dropped by about 5 and 2 precentage units in the lots with the falling numbers 91 and 65, respectively. This occurred at processing of the lot of better quality for 70, 20, 13 and 6 sec in the order of increasing temperature. The corresponding durations for the other lot were above 60, 30, 20 and 6 sec. During these treatments the falling number values rose from 91 to 104—129 and from 65 to 70—71. These results were confirmed by farinogram and extensigram determinations and by baking tests. The same processing conditions affected more severely the lot having the better initial quality than the lot with greater sprout damages.

scholarly journals The Management Mode and Personnel Quality of International Students Management in Colleges and Universities

2019 ◽  
Vol 3 (3) ◽  
pp. 26
Author(s):  
Yuhong Chen ◽  
Xiaozhuo Huo ◽  
Nannan Chen
Keyword(s):  
International Students ◽  
Foreign Students ◽  
Colleges And Universities ◽  
The Other ◽  
Management Mode ◽  
Internationalization Of Education ◽  
Major Trend ◽  
The Times ◽  
The One

<p>The education system of colleges and universities is in the process of reform, and the internationalization of education has become a major trend of development. The number of foreign students is increasing, so the management of foreign students must be reformed. According to the current situation, in the management of foreign students, on the one hand, we should carry out a new management mode for foreign students in accordance with the requirements of the times; on the other hand, we should pay attention to improving the comprehensive quality of foreign students and those who stay in China.</p>

The Way of Integrating Art Appreciation Course into the Talent Cultivation of Tobacco Profession

2021 ◽  
Vol 7 (6) ◽  
pp. 6207-6212
Author(s):  
Zou Mi ◽  
Liu Peng ◽  
Fang Lu
Keyword(s):  
Colleges And Universities ◽  
The Other ◽  
Art Appreciation ◽  
Aesthetic Quality ◽  
New Era ◽  
Training Plan ◽  
Training Quality ◽  
Public Curriculum ◽  
The One

Integrating the art appreciation course into the talent cultivation plan of tobacco profession has become the major way for colleges and universities to implement aesthetic education. This is also one of the reform measures of public curriculum in colleges and universities in the new era. By clarifying the concept connotation and policy requirements of the art appreciation course, and combining the talent training characteristics of tobacco profession, the construction of tobacco profession can be promoted. By doing this, on the one hand, it is conducive to consolidating the talent training plan of tobacco profession. On the other hand, it can cultivate the artistic ability of students majoring in tobacco, expand their artistic knowledge, and effectively build up their aesthetic quality and artistic level. As the consequence, the talent training quality of tobacco profession can be improved.

“Network Process Re-Engineering” in a Home Textile Network

2011 ◽  
pp. 212-234
Author(s):  
Enrico Baraldi ◽  
Giancarlo Nadin
Keyword(s):  
Complex Network ◽  
The Other ◽  
Coercive Power ◽  
Business Network ◽  
Network Process ◽  
Change Projects ◽  
The One ◽  
Complex Coordination

This chapter relies on a case study featuring the business network around Stella, an Italian home textile manufacturer, to illustrate the challenging issue of engaging other firms into complex “Network Process Re-engineering” (NPR) projects. While the strict technological dimension of selecting, developing, and implementing ICT solutions is certainly very important and poses several challenges to this type of projects, this chapter focuses on other types of challenges, namely those pertaining to the nature and quality of relationships between the actors taking part in a NPR project. We stress the importance of the connection between the specific inter-organizational activities that need to be redesigned and coordinated in better ways, on the one hand, and the bonds existing among the actors, on the other hand. We suggest that very advanced and complex coordination tasks, entailing sensitive communication patterns, can be tackled only if supported by strong, integrative relationships characterized by high trust and commitment between the involved parties. We conclude by discussing how the pivotal firms or the “strategic centers” of a network can support and facilitate complex change projects like NPR by carefully combining different strategies, whereby they both exert coercive power and make concessions to their counterparts in the network.

Using Concept Mapping to Improve the Quality of Learning

2010 ◽  
pp. 316-336
Author(s):  
Maria Luisa Pérez Cabaní ◽  
Josep Juandó Bosch
Keyword(s):  
Concept Mapping ◽  
Learning Strategies ◽  
Concept Maps ◽  
The Other ◽  
The European Union ◽  
Quality Of Learning ◽  
European Higher Education ◽  
The One ◽  
Work Done

The European Higher Education Area, created to contribute to the development of quality education and encourage cooperation between Member States of the European Union, has created an opportunity for reflection on teaching methods in universities. These circumstances provide momentum for the use of learning strategies. Along these lines, this chapter presents work done on concept mapping, one of the methods that could significantly help prepare both students and teachers for the new roles expected of them. The results of two lines of study are presented: on the one hand, research that analyses the influence of the differential use of concept maps on the quality of learning; and on the other, an innovation in the use of concept maps in a course developed in the area of initial teacher training. Both initiatives serve to highlight increased interest in concept mapping in the field of learning and especially in collaborative learning.

scholarly journals Quality of Drinking Water in the Balkhash District of Kazakhstan’s Almaty Region

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 392 ◽  
Author(s):  
Sabir Nurtazin ◽  
Steven Pueppke ◽  
Temirkhan Ospan ◽  
Azamat Mukhitdinov ◽  
Timur Elebessov
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Water Samples ◽  
Well Water ◽  
Chemical Impurities ◽  
Tube Wells ◽  
Local Residents ◽  
High Concentrations ◽  
Growth Economic

The thinly populated Balkhash District of Kazakhstan’s Almaty Region lies in the lower reaches of the Ili-Balkhash basin, which is shared by China and Kazakhstan. The district is arid and heavily dependent on inflows of surface water, which are threatened by the effects of upstream population growth, economic development, and climate change. The quality of drinking water from centralized water systems and tube wells in nine villages of the district was analyzed, and the organoleptic properties of water from these sources was also assessed by an expert and via surveys of local residents. Although most samples met governmental standards for the absence of chemical impurities, high concentrations of mineralization, chlorides, boron, iron, and/or uranium were present in some well water samples. Levels of these pollutants were as much as 4-fold higher than governmental maxima and as much as 16-fold higher than concentrations reported previously in surface water. All centralized water samples met standards for absence of microbial contamination, but total microbial counts in some well water samples exceeded standards. Organoleptic standards were met by all the water from five villages, but centralized water from one village and well water from four villages failed to meet standards based on expert judgment. Residents were, for the most part, more satisfied with centralized rather than well water, but there was no obvious relationship between the failure of water to meet standards and the locations or populations of the settlements. This is the first comprehensive assessment of groundwater used for drinking in the lower Ili-Balkhash basin, and although it relies on a limited number of samples, it nevertheless provides evidence of potentially serious groundwater contamination in the Balkhash District. It is thus imperative that additional and more detailed studies be undertaken.

scholarly journals Rhetoric, discourse and the hermeneutics of public speech

Politics ◽  
2020 ◽  
pp. 026339572093377
Author(s):  
James Martin
Keyword(s):  
Political Discourse ◽  
Public Speaking ◽  
Rhetorical Analysis ◽  
The Other ◽  
Temporal Dimension ◽  
Public Speech ◽  
Other Hand ◽  
The One

What insights and advantages do rhetorical approaches offer over other methods of exploring social and political discourse? This article aims to clarify the contribution of rhetorical analysis by exploring its distinctive, hermeneutic attention to public speech. Public speaking is, accordingly, viewed as a practice of assembling meaningful interpretations in specific situations. Central here is a temporal dimension. Analysing rhetoric involves grasping discourse, on the one hand, as concretely situated in response to proximate constraints and, on the other hand, as a medium to move beyond the situation towards a future. Following John Caputo’s reading of Derrida, I argue that, examined rhetorically, public speech enacts a ‘negotiation’ of past and future, intertwining conditional – and hence partially calculable – positions with an ‘unconditional promise’ to prepare for what comes. Although compatible with other approaches, rhetorical analysis is uniquely attuned to this intrinsically ethical and political quality of discursive action.

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