scholarly journals Concept of contemporary methods for monitoring and determination of cyanide in water

2004 ◽  
Vol 58 (7-8) ◽  
pp. 338-342
Author(s):  
Dragana Cickaric ◽  
Ljubinka Rajakovic

The quality of life depends on water quality. Good water quality and the rational use of water are an absolute need of the new millennium. Although it is an ecological and health priority to prohibit the contamination of water and water protection, it is a responsibility for environmental engineers and chemists to develop and apply effective methods for monitoring and controlling of water quality, and at that way prevent ecological and technological catastrophe on time. In this paper modern methods and process for monitoring, control and detection of cyanide in water and wastewater are presented. Recent developments in instrumental techniques and treatment for determination of this toxic substance in water are described, particularly the methods according to green analytical aspects.

2012 ◽  
Vol 09 (18) ◽  
pp. 87-97
Author(s):  
Bruna de Paula SANTANA ◽  
Núbia Natália BRITO

The quality of the water is a term that doesn't only concern the determination of the purity of the same, but the characteristics also wished for your use. The teaching of Environmental Chemistry using the thematic water quality, linked to the experimental activities it can contribute to global formation of high school students giving them conditions for construction, reconstruction and production of knowledge. This way this work had as objective the construction of a mini-course for high school students, in order to these can relate the chemistry studied with some parameters related to the water quality through experimental activities. In the development of this mini-course a potability kit was used (Alfakit) for analysis of the following parameters: alkalinity, chloride, free chlorine, pH, total hardness, turbidity, color, total iron, consumed oxygen, ammonia, total coliforms, faecal coliforms and salmonella (salmonella typhi). The analyses were accomplished as standard methods for the water and wastewater. It was also made a plan and class procedure and a questionnaire given to the participant students. The results obtained starting from the determination of the parameters, already mentioned, they allowed to collaborate for the students to observe subjects related to the consumption, quality and preservation of the water. We believed that with the student participation activates in a situation of real investigation, proposal in the challenge form will be able instigate the students in the search of an answer more consolidated.


2011 ◽  
Vol 17 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Nada Babovic ◽  
Dejan Markovic ◽  
Vojkan Dimitrijevic ◽  
Dragan Markovic

This paper shows the results obtained in field analysis performed at the Tamis River, starting from the settlement Jasa Tomic - border between Serbia and Romania to Pancevo - confluence of Tamis into the Danube. The Tamis is a 359 km long river rising in the southern Carpathian Mountains. It flows through the Banat region and flows into the Danube near Pancevo. During the years the water quality of the river has severely deteriorated and badly affected the environment and the river ecosystem. In situ measurements enabled determination of physico-chemical parameters of water quality of the Tamis River on every 400 m of the watercourse, such as: water temperature, pH value, electrical conductivity, contents of dissolved oxygen and oxygen saturation. The main reason of higher pollution of Tamis is seen in connection to DTD hydro system. Sampling was performed at 7 points with regard to color, turbidity, total hardness, alkalinity, concentration of ammonium nitrogen, nitrite nitrogen, nitrate nitrogen, iron, chlorides and sulphates in samples. The aim of the present work was to evaluate water quality in the Tamis River taking into account significant pollution, which originates from settlements, industry and agriculture, and to suggest appropriate preventive measures to further pollution decreasing of the river's water.


2013 ◽  
Vol 24 (1) ◽  
pp. 41-57 ◽  
Author(s):  
N Miller ◽  
J Patterson

SummaryDysphagia represents a salient concern in many conditions prevalent in older people. There are direct implications for morbidity and mortality. The importance of recognizing and managing dysphagia in hospital and the community also extends to psychosocial impact and quality of life, as well as health, economic and ethical-legal issues. This review outlines reasons for the importance of recognizing and treating dysphagia. It then proceeds to look at recent developments in our understanding of the nature, assessment and management of dysphagia in older people. Whilst there are well-established practices in assessment and management, ongoing work continues to challenge the validity and reliability of many methods. These concerns are covered and directions for future developments highlighted.


1999 ◽  
Vol 39 (8) ◽  
pp. 55-62 ◽  
Author(s):  
Anastasios I. Stamou ◽  
Bogdana Koumanova ◽  
Stoyan Stoyanov ◽  
Georgy Atanasov ◽  
Konstantinos Pipilis

A general methodology for the study of water quality in rivers is presented. The paper consists of four parts. In the first part the general characteristics of the area of study, which is the Beli Lom river, and its major pollution sources are presented. The effluent of the Razgrad Wastewater Treatment Plant (RWWTP) has been identified as the most significant pollution point source, due to the inadequate performance of the plant. The second part deals with data collection and processing. Four series of data have been collected, including physical, flow and water quality characteristics. In the third part a 1-d, finite-difference, second-order model is presented. In the fourth part, the model is calibrated, for the determination of its main coefficients, and is successfully verified by predicting the BOD and DO concentrations in the Beli Lom river for all series of data. Finally, the model has been applied to determine the maximum BOD and minimum DO effluent concentrations of the RWWTP, so that a minimum DO concentration is maintained throughout the river.


2020 ◽  
Author(s):  
Fábio Rodrigues de la Rocha

Public street lighting management is a well known problemwhich can be revisited from the perspective of Smart Cities.In Smart Cities there is an interconnection of services andinfrastructure to provide sustainable growth and improvementsin citizens’ quality of life. In this research work, weexplore new low cost technologies to create a smart streetlight system capable of monitoring and controlling the lamps,thus reducing the costs with maintenance and allowing amore rational use of electricity.


2019 ◽  
Vol 72 (7) ◽  
pp. 1229-1235
Author(s):  
Ewa Kucharska ◽  
Aleksandra Kucharska ◽  
Aleksander Sieroń ◽  
Mariusz Nowakowski ◽  
Karolina Sieroń

The palliative care patient is definitely a unique type of patient. Due to the complexity of the symptoms requires a holistic therapeutic approach. Modern methods of treatment in palliative and hospice care underline an important role of physio, kinesiotherapy and pharmacological treatment coexistence. The rehabilitation reduces clinical symptoms, accompanying the basic disease and increases the quality of life of palliative patients and their families. It becomes an inseparable element of treatment, both in outpatient care as well as in stationary care and home care. Due to the high dynamics onset of cancer in the group of geriatric patients there is a need for a broader analysis of the topic. The goal of palliative care is to achieve the best possible quality of life for patients and their families.


Author(s):  
Tan Yigitcanlar ◽  
Hoon Jung Han

Rapidly developing information and telecommunication technologies and their platforms in the late 20th Century helped improve urban infrastructure management and influenced quality of life. Telecommunication technologies make it possible for people to deliver text, audio and video material using wired, wireless or fiber-optic networks. Technologies convergence amongst these digital devices continues to create new ways in which the information and telecommunication technologies are used. The 21st Century is an era where information has converged, in which people are able to access a variety of services, including internet and location based services, through multi-functional devices such as mobile phones. This chapter discusses the recent developments in telecommunication networks and trends in convergence technologies, their implications for urban infrastructure planning, and for the quality of life of urban residents.


Sign in / Sign up

Export Citation Format

Share Document