Applications of Nanomaterials for Water Treatment

2020 ◽  
pp. 423-435 ◽  
Author(s):  
Anupreet Kaur
Keyword(s):  
Developing Countries ◽  
Water Treatment ◽  
Environmental Pollution ◽  
New Technologies ◽  
Analytical Chemist ◽  
Underdeveloped Countries ◽  
Methods Of Analysis ◽  
Low Levels ◽  
Day By Day

Development of new technologies, progressive urbanization, increasing consumerism and industrial boom in developing countries has led to elevated pollution of the environment. The spectrum of pollutants produced and released to the environment has increased in the last few decades including the agricultural, industrial, pharmaceutical and plastic industries. In the developed and underdeveloped countries where environmental pollution goes on increasing day by day, the concern of mankind to the threat of humanity increases which comes from anthropogenic degradation of the environment. An analytical chemist is always in search of cheaper, quicker, more sensitive, more reliable, precise methods of analysis. To achieve such a goal many properties of the materials are studied. Nanotechnology meets many of the conditions mentioned above and is very economic. So, analytical nanotechnology is an important tool for preconcentration and separation of pollutants at low levels.

Applications of Nanomaterials for Water Treatment

2017 ◽  
pp. 289-304 ◽  
Author(s):  
Anupreet Kaur
Keyword(s):  
Developing Countries ◽  
Water Treatment ◽  
Environmental Pollution ◽  
New Technologies ◽  
Analytical Chemist ◽  
Underdeveloped Countries ◽  
Methods Of Analysis ◽  
Low Levels ◽  
Day By Day

Development of new technologies, progressive urbanization, increasing consumerism and industrial boom in developing countries has led to elevated pollution of the environment. The spectrum of pollutants produced and released to the environment has increased in the last few decades including the agricultural, industrial, pharmaceutical and plastic industries. In the developed and underdeveloped countries where environmental pollution goes on increasing day by day, the concern of mankind to the threat of humanity increases which comes from anthropogenic degradation of the environment. An analytical chemist is always in search of cheaper, quicker, more sensitive, more reliable, precise methods of analysis. To achieve such a goal many properties of the materials are studied. Nanotechnology meets many of the conditions mentioned above and is very economic. So, analytical nanotechnology is an important tool for preconcentration and separation of pollutants at low levels.

Guidelines for the Transfer of new Technologies in the Field of Tourism (English version)

1988 ◽  
Keyword(s):  
Developing Countries ◽  
New Technologies ◽  
Secretary General ◽  
General Assembly ◽  
English Version ◽  
Alternative Strategies ◽  
Tourism Sector ◽  
Interregional Cooperation ◽  
Sixth Session ◽  
Recent Trends

This study was prepared pursuant to resolution 174(VI), adopted by the General Assembly at its sixth session (Sofia, September 1985), concerning the Organization's General Programme of Work for the period 1986-1987, prepared by the Secretary-General. It was entered as an activity under the heading "Standard-setting activities". The identification of recent trends in the transfer of new technologies in the field of tourism; the investigation of various effects of new technologies for tourist receiving developing countries; the discussion of alternative strategies with respect to the acquisition and assimilation of new technologies in the field of tourism; the recommendation of specific policies, actions and measures to be taken by the developing countries in order to maximize gains and minimize adverse effects arising from the transfer of new technologies; the formulation of basic guidelines for technology transfer as applied to the main operations in the tourism sector and the suggestion of directions and forms of regional and interregional cooperation (including WTO activities ) supplementing national efforts, are the main objectives of the study.

Development of the Sheraton hotel chainDevelopment of the Sheraton hotel chain

2021 ◽  
Vol 65 (04) ◽  
pp. 137-139
Author(s):  
Mehdi Elman oğlu Bağırov ◽  
Keyword(s):  
North America ◽  
South America ◽  
New Technologies ◽  
Hotel Industry ◽  
Sheraton Hotel ◽  
Hotel Chains ◽  
The Caribbean ◽  
Day By Day ◽  
Hotel Chain ◽  
Made In

The distribution of the world's hotel chains to more and more countries is also reflected in our country, and the development of this type of chain hotels is growing day by day. Along with the development of technology, the tourism infrastructure and its key element, the hotel industry, is also developing. Today, investments are being made in a planned way to modernize the hotel business, build new hotels, and introduce new technologies and forms of service. Sheraton Hotels and Resorts is an international hotel chain owned by Marriott International. Sheraton has 446 hotels with 155,617 rooms worldwide, including locations in North America, Africa, Asia, Central and South America, Europe, the Middle East and the Caribbean. Key words: hotel chains, investment, technology, hotel business, tourism infrastructure

Desalinization Water Treatment Control System Design Based on Mitsubishi PLC

2013 ◽  
Vol 397-400 ◽  
pp. 1539-1542
Author(s):  
Ling Yu ◽  
Jian Rong Ning ◽  
Xiang Li
Keyword(s):  
Water Treatment ◽  
High Efficiency ◽  
Control System Design ◽  
Treatment Control ◽  
Safety Control ◽  
Machine Interface ◽  
Water Pumps ◽  
Automatic Switching ◽  
Day By Day ◽  
Switching State

With the development of industry and technology, the need for freshwater increases day by day, the contradiction between the fresh water for production and livelihood is sharpened. An important way to solve the problem is desalinization of the groundwater. In this paper reverse osmosis disposal process of groundwater are used, PLC are used to control electromagnetic valves and water pumps in the desalinization water treatment system and automatic switching state or stop. Using touching screen as man-machine interface, which is more convenient for the operator to know the working stages, and is more facility for desalinization process. The system has many advantages, such a saving energy, high efficiency, more safety, control modes flexible and various, function extension easily. It has great significance in reduce cost of desalinization of groundwater and remission serious lack of the freshwater in some areas of China.

scholarly journals SILICA SOL APPLICATION IN GEOCONSTRUCTION

2019 ◽  
Vol 16 (31) ◽  
pp. 711-718
Author(s):  
L. B. SVATOVSKAYA
Keyword(s):  
Heavy Metal ◽  
Substance Use ◽  
Environmental Pollution ◽  
Metal Ion ◽  
New Technologies ◽  
Experimental Methods ◽  
Silica Sol ◽  
Heavy Metal Ion ◽  
Pure Substance

The article deals with a number of topical issues connected with transport geoconstruction and environmental pollution such as heavy metal ion pollutions of soils. The main aim of the study is to present new problem solutions and technologies for geoconstruction concerning pure substance use for lithosphere. Silica sol solution was chosen as this substance. The choice was made because of silica sol nature. Having important properties, it is the purest substance for the environment. Experimental methods were carried out. The study introduces new technologies of silica sol solution use in geoconstruction systems: silica sol detoxication technology (SDT) for soils, silica sol absorption technology (SAT), soil strengthening technology (SST), silica sol blocking action technology (SBT). The article shows the examples of these technologies’ application and examines new main properties of geoconstruction systems.

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