Sustainable technologies for water treatment

Author(s):  
Jordi Morató ◽  
Alex Pires Carneiro ◽  
Angeles Ortiz ◽  
Ángel Gallegos
2017 ◽  
pp. 190-212
Author(s):  
Jordi Morató ◽  
Alex Pires Carneiro ◽  
Angeles Ortiz ◽  
Ángel Gallegos

2015 ◽  
Vol 10 (2) ◽  
pp. 205-213
Author(s):  
M. Kaiser ◽  
S. Fuchs

In the province of Yogyakarta in Java, district of Gunungkidul is considered to be one of the poorest areas in Indonesia. Here, water shortage greatly affects the population, especially during the dry season, which lasts from April to October. The peculiarity of Gunungkidul is that despite high rainfall of about 1,800 mm per year, the water supply of the population is not guaranteed. Because of the karstic underground, rainfall rapidly seeps into the ground without sufficient surface storage. The current situation of sanitation systems consist of pit latrines or pour flush toilets and results in an inadequate waste water treatment. Untreated liquids infiltrates into the ground, thus posing a significant threat to groundwater quality. Owing to this reasons mentioned above, an integrated water resources management (IWRM) was established in the district of Gunungkidul. The aim of the IWRM-Indonesia project was to develop adaptable and sustainable technologies for the supply of the population in the project area with water in sufficient quantity and quality as well as the improvement of the waste water treatment situation, which is the focus of the study presented herein.


2020 ◽  
Vol 31 (1) ◽  
pp. 197
Author(s):  
Isabel María Román Sánchez ◽  
Irene Carra ◽  
José Antonio Sánchez Pérez

The presence of persistent and toxic pollutants in waters has encouraged the development of new water treatment technologies, such as the solar photocatalysis process, solar photo-Fenton, which uses the Sun as renewable source of energy to diminish process costs. The market failure associated to the pollution originated by industrial wastewater discharges is corrected with the establishment of environmental taxes. The heterogeneity in the design of these taxes affects both the considered pollution parameters and their specific weight in the calculation of the tax to be paid. In this paper, it is discussed the capability of the environmental taxes to correct the water pollution as market failure, and as an incentive to invest in sustainable technologies and water treatment processes.


2021 ◽  
Vol 1203 (3) ◽  
pp. 032001
Author(s):  
Laura Arboleda Muñoz ◽  
Lizeth Peláez Tamayo ◽  
David Pineda Marulanda ◽  
Gloria Carvajal Peláez ◽  
Margarita Hincapié Pérez

Abstract The water sector problems are framed by the low rate of adoption of technological innovation, in addition to the great environmental challenges. In Colombia, due to its topography, the provision of the aqueduct and sewerage service is difficult, causing the association of small rural communities to try to supply their need for drinking water for daily activities in a handcrafted way, this added to the increase of the limitations of the different natural resources, it becomes a challenge to guarantee the fundamental right to water and sanitation. This article, based on the UN's Sustainable Development Goals: "Health and well-being", "Clean water and sanitation", "Sustainable cities and communities, and "Responsible consumption and production" presents the results of a research carried out to validate sustainable technologies for safe water treatment systems in communities. Data were collected for a qualitative analysis through interviews applied to representative actors of the sector: water quality laboratories, aqueducts, and utility companies. The study provides information on the different needs identified for each segment, and provides information on the decisions companies make regarding investment in sustainable technologies, highlighting the existing gap in the water sector in innovation management, it presents a diagnosis on the uses of technologies on the water treatment market.


2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.


Waterlines ◽  
2007 ◽  
Vol 26 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Caetano Dorea
Keyword(s):  

Waterlines ◽  
2012 ◽  
Vol 31 (1-2) ◽  
pp. 53-66 ◽  
Author(s):  
Richard Luff ◽  
Caetano Dorea

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