scholarly journals Optimización operativa de Aguas de Manizales S.A. ESP, a partir de la implementación del SIG [Operational optimization of Aguas de Manizales S.A. ESP, throughout implementing a GIS]

2010 ◽  
Author(s):  
Valentina Giraldo Fadul
Keyword(s):  
Drinking Water ◽  
Initial State ◽  
Water Utility ◽  
Utility Company ◽  
Sewage System ◽  
Gis Applications ◽  
Utility Companies ◽  
El Sistema ◽  
History Of ◽  
Potential Improvement

Resumen Desde el desarrollo de los Sistemas de Información Geográfica su aplicación se ha extendido a diversos campos como densidad poblacional, medio ambiente, transporte, agricultura, entre otros. El sector de Agua potable y alcantarillado no ha sido ajeno a las bondades que brinda un SIG para administrar de manera gráfica diferentes elementos de un sistema que poseen atributos, características y una posición geográfica relativa. Con el fin de analizar la utilidad y beneficios de la implementación de un Sistema de Información Geográfica en una empresa de este tipo, se ha querido estudiar la empresa Aguas de Manizales S.A. ESP organización reconocida en Colombia como modelo de gestión en el sector de agua potable y alcantarillado, considerando la forma como el SIG contribuyó en su fortalecimiento empresarial y examinando el comportamiento y mejora de algunos de los componentes del sistema más representativos, además de concluir sobre las aplicaciones del SIG que hoy en día son susceptibles de mejorar su aprovechamiento en la empresa. Este documento describe en primera instancia el sistema de acueducto y alcantarillado operado por la empresa con el fin de identificar los diferentes elementos que entraron a ser administrados con ayuda del Sistema de Información Geográfica. Hace una presentación del estado inicial de los componentes del sistema antes de la implementación del SIG desde el punto de vista técnico y comercial. Así mismo, muestra un análisis de la forma como la puesta en marcha del mismo contribuyó a alcanzar la optimización operativa actual, detallando finalmente los diferentes beneficios obtenidos por la empresa y las aplicaciones y utilidades del SIG que cuentan con un potencial de mejora de su uso en una empresa de acueducto y alcantarillado. Palabras ClaveSIG, acueducto, alcantarillado. Abstract Since their early development Geographic information Systems (GIS) applications have extended to different areas such population density, natural environment, transportation, agriculture, among others. Water utility companies have also implemented GIS to manage the elements of their business possessing the geographical relative location and attributes that characterize them. Aguas de Manizales S.A. ESP is a leading water utility company in the sector of drinking water and sewage system in Colombia. This document describe the process of implementing a GIS system within AGUAS considering the history of the system implementation, the contributions of GIS to AGUAs management structure and the areas susceptible of further implementation.This document describes the characteristics of drinking water and sewage system operated by AGUAS identifying the different elements to be managed by the GIS. I present the initial state of the components of the system before the GIS implementation from the technical and commercial viewpoint and the developments to reach the current operative optimization. Finally, I summarize the benefits obtained for the organization and the areas for potential improvement. KeywordsGIS, drinking water, sewage.

scholarly journals Multi-Year Index-Based Insurance for Adapting Water Utility Companies to Hydrological Drought: Case Study of a Water Supply System of the Sao Paulo Metropolitan Region, Brazil

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2954
Author(s):  
Diego A. Guzmán ◽  
Guilherme S. Mohor ◽  
Eduardo M. Mendiondo
Keyword(s):  
Sao Paulo ◽  
Hydrological Drought ◽  
Planning System ◽  
Economic Losses ◽  
Insurance Fund ◽  
São Paulo ◽  
Water Utility ◽  
Utility Company ◽  
Data Limitations ◽  
Utility Companies

The sustainability of water utility companies is threatened by non-stationary drivers, such as climate and anthropogenic changes. To cope with potential economic losses, instruments such as insurance are useful for planning scenarios and mitigating impacts, but data limitations and risk uncertainties affect premium estimation and, consequently, business sustainability. This research estimated the possible economic impacts of business interruption to the Sao Paulo Water Utility Company derived from hydrological drought and how this could be mitigated with an insurance scheme. Multi-year insurance (MYI) was proposed through a set of “change” drivers: the climate driver, through forcing the water evaluation and planning system (WEAP) hydrological tool; the anthropogenic driver, through water demand projections; and the economic driver, associated with recent water price policies adopted by the utility company during water scarcity periods. In our study case, the evaluated indices showed that MYI contracts that cover only longer droughts, regardless of the magnitude, offer better financial performance than contracts that cover all events (in terms of drought duration). Moreover, through MYI contracts, we demonstrate solvency for the insurance fund in the long term and an annual average actuarially fair premium close to the total expected revenue reduction.

CSR Programs of Municipal Water Utility Companies for Wetland Communities of South Kalimantan

2021 ◽  
Vol 7 (1) ◽  
pp. 38-41
Author(s):  
Laila Said ◽  
Fifi Swandari ◽  
Meldasari Said
Keyword(s):  
Social Responsibility ◽  
Group Discussion ◽  
Water Utility ◽  
Private Companies ◽  
Utility Company ◽  
Municipal Water ◽  
Utility Companies ◽  
Csr Strategy ◽  
The Government ◽  
Corporate Social

Many studies on Corporate Social Responsibility (CSR) analyze the effectiveness and efficiency of private companies' social funds. Only a few studies on CSR programs of municipal utility companies. The municipal utility company is unique because it has a captive market, and the Government regulates the company. These factors impact company's CSR strategy. This study qualitatively analyzed the CSR of municipal water utility companies of Bandarmasih and Intan Banjar. The Bandarmasih, which is located in the city of Banjarmasin, represents urban wetlands. The Intan Banjar, which service area includes Banjarbaru city and Banjar regency, represents rural wetlands. The analysis method was descriptive exploratory through observation, interviews, and focus group discussion. The results showed that the CSR programs had been sufficiently implemented but ineffective to fulfill the wetland community's needs. The CSR programs were sporadic and did not strategically improve the companies' image. The CSR programs were not derived from the companies' vision and mission. There was no formulated social responsibility policy. This current research contributes to designing a 'signature' CSR program under its core business competencies for community welfare. This research is among the first to focus on municipal utility companies' CSR programs concerning communities in wetland areas. 

scholarly journals CSR Programs of Municipal Water Utility Companies for Wetland Communities of South Kalimantan

2021 ◽  
Vol 39 (4) ◽  
Author(s):  
Laila Said ◽  
Fifi Swandari ◽  
Meldasari Said
Keyword(s):  
Social Responsibility ◽  
Group Discussion ◽  
Water Utility ◽  
Private Companies ◽  
Utility Company ◽  
Municipal Water ◽  
Utility Companies ◽  
Csr Strategy ◽  
The Government ◽  
Corporate Social

 Many studies on Corporate Social Responsibility (CSR) are from private companies' perspective, analyzing social funds' effectiveness and efficiency. However, only a few studies explore CSR programs of municipal utility companies. The municipal utility company is unique because it has a captive market, and the Government regulates the company. These factors impact company's CSR strategy. The current research qualitatively analyzed the CSR of two municipal water utility companies. The Bandarmasih, located in the city of Banjarmasin, represents urban wetlands. The Intan Banjar, which service area includes Banjarbaru city and Banjar regency, represents rural wetlands. The analysis method was descriptive exploratory through observation, interviews, and focus group discussion (FGD). The results showed that the CSR programs had been sufficiently implemented but ineffective to fulfill the needs of the wetland community. The CSR programs were sporadic and did not strategically improve the companies' image. The CSR programs were not derived from the companies' vision and mission. There was no formulated social responsibility policy. This current research contributes to designing a 'signature' CSR program under its core business competencies for community welfare. This research is among the first to focus on municipal utility companies' CSR programs concerning communities in wetland areas. 

Modernization of the water utility company of Bogotá (Colombia): an example of public and private participation for solving management problems of water companies in developing countries

2005 ◽  
Vol 5 (2) ◽  
pp. 107-113
Author(s):  
F. Zuleta ◽  
A. Merlano ◽  
A. Alvarez ◽  
M. Montoya ◽  
E. Restrepo
Keyword(s):  
Developing Countries ◽  
Latin American ◽  
Public Management ◽  
Practical Case ◽  
Water Utility ◽  
Comparative Efficiency ◽  
Utility Company ◽  
Private Participation ◽  
Management Problems ◽  
Water Companies

A common characteristic of water utility and wastewater companies in developing countries is management problems and limited commercial vocation. In the biggest Latin American cities there is a level of infrastructure enough for providing a substantially better service than the one currently supplied to their badly served customers. For years decisions have moved between two extremes: public management – usually corrupted with playing politics and inefficiency problems, and privatization – sharply criticized by many, and which has shown tendencies to inequality that leave it far away from earning panacea status. This paper is intended to expose the advantages of a novel model in which a state-run company with commercial management problems, the EAAB, solves its limitations by keeping the ownership of its assets and successfully incorporating the participation of better practices from other specialized operators, one of which is a state-owned player, EEPPM. This scheme demonstrates how the service indicators of a system serving eight million inhabitants in the Colombian capital improved significantly with state-owned assets and private participation, without giving in to privatization pressures or stagnating in the usual inefficiency typical of public management in developing countries. This is proposed as a replicable experience that can be used in medium and large cities in other countries with similar management problems, with certain adjustments to fit the solution to the specific cases. This is also a practical case for conducting a comparison of competitiveness within a city, of interest for regulatory entities and investigators on the potential of comparative efficiency in a traditionally monopolistic industry.

scholarly journals How Perceptions of Trust, Risk, Tap Water Quality, and Salience Characterize Drinking Water Choices

Hydrology ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 49
Author(s):  
Madeline A. Grupper ◽  
Madeline E. Schreiber ◽  
Michael G. Sorice
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Risk Perceptions ◽  
Anthropogenic Impacts ◽  
Tap Water ◽  
Water Utilities ◽  
Global Changes ◽  
Water Utility ◽  
The Public ◽  
Water Behavior

Provision of safe drinking water by water utilities is challenged by disturbances to water quality that have become increasingly frequent due to global changes and anthropogenic impacts. Many water utilities are turning to adaptable and flexible strategies to allow for resilient management of drinking water supplies. The success of resilience-based management depends on, and is enabled by, positive relationships with the public. To understand how relationships between managers and communities spill over to in-home drinking water behavior, we examined the role of trust, risk perceptions, salience of drinking water, and water quality evaluations in the choice of in-home drinking water sources for a population in Roanoke Virginia. Using survey data, our study characterized patterns of in-home drinking water behavior and explored related perceptions to determine if residents’ perceptions of their water and the municipal water utility could be intuited from this behavior. We characterized drinking water behavior using a hierarchical cluster analysis and highlighted the importance of studying a range of drinking water patterns. Through analyses of variance, we found that people who drink more tap water have higher trust in their water managers, evaluate water quality more favorably, have lower risk perceptions, and pay less attention to changes in their tap water. Utility managers may gauge information about aspects of their relationships with communities by examining drinking water behavior, which can be used to inform their future interactions with the public, with the goal of increasing resilience and adaptability to external water supply threats.

scholarly journals Comparing inhalation and ingestion exposure to chemical contaminants and odorants in mixtures

2017 ◽  
Vol 18 (5) ◽  
pp. 1739-1746
Author(s):  
D. L. Gallagher ◽  
K. Phetxumphou ◽  
A. M. Dietrich
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Minor Component ◽  
Biological Properties ◽  
Threshold Concentration ◽  
Water Utility ◽  
Chemical Spills ◽  
Odour Threshold ◽  
Trans Methyl ◽  
Cis And Trans

Abstract Chemical spills polluting drinking water are often mixtures with each chemical having unique characteristics for partitioning, toxicity, and odour leading to significant differences in human risk exposures. A 2014 chemical spill of crude (4-methylcyclohexyl)methanol (MCHM) resulted in a $126 million USD fine to the water utility. The spill consisted of at least ten chemicals including 34% cis- and 60% trans-4-MCHM and 0.7% cis- and 0.3% trans-methyl-4-methylcyclohexanecarboxylate (MMCHC). While a very minor component, trans-MMCHC contributed substantially to odour because of its high Henry's Law Constant, 2.23 × 10−2 at 40 °C showering, and low odour threshold concentration (OTC), 0.02 ppb-v, air. Using USEPA risk assessment parameters in a 15-minute shower model with influent concentration of 42 ppb-aq cis- and trans-4-MMCHC, representative of initial spill concentrations in the distribution system, adult ingestion and inhalation for trans-MMCHC were almost equal, 4.00 × 10−4 and 4.26 × 10−4 mg/kg/d, respectively. For children, inhalation doses exceeded ingestion dose: 1.72 × 10−3 mg/kg/d versus 0.93 × 10−3 mg/kg/day trans-MMCHC. This exposure assessment with varying OTC for crude MCHM chemicals reinforces considering chemical, physical, and biological properties of all chemicals in the spill. Consumers aware of their exposure to chemicals in drinking water lost consumer confidence; the water utility was required to compensate individuals and businesses for financial losses.

Multi-Scale Virtual Reality of Sintering

2007 ◽  
Vol 534-536 ◽  
pp. 573-576
Author(s):  
Eugene Olevsky
Keyword(s):  
Global Scale ◽  
Initial State ◽  
Model Framework ◽  
Time Step ◽  
Computational Framework ◽  
Multi Scale ◽  
Scale Modeling ◽  
History Of ◽  
On Line ◽  
Damage Criteria

The directions of further developments in the modeling of sintering are pointed out, including multi-scale modeling of sintering, on-line sintering damage criteria, particle agglomeration, sintering with phase transformations. A true multi-scale approach is applied for the development of a new meso-macro methodology for modeling of sintering. The developed macroscopic level computational framework envelopes the mesoscopic simulators. No closed forms of constitutive relationships are assumed for the parameters of the material. When a time-step of the calculations is finished for one macroscopic element, the mesostructures of the next element are restored from the initial state according to the history of loading. The model framework is able to predict the final dimensions of the sintered specimen on a global scale and identify the granular structure in any localized area for prediction of the material properties.

A Brief History of Drinking Water

Opflow ◽  
2000 ◽  
Vol 26 (6) ◽  
pp. 46-49 ◽  
Author(s):  
Ellen L. Hall ◽  
Andrea M. Dietrich
Keyword(s):  
Drinking Water ◽  
History Of

scholarly journals GEOTECNOLOGIAS COMO SUPORTE PARA ANÁLISE DA VEGETAÇÃO NATURAL NA SUB-BACIA HIDROGRÁFICA DO RIO GAVIÃO (1988 A 2015)

2020 ◽  
Vol 15 (01) ◽  
pp. 98-113
Author(s):  
Carlos Magno Santos Clemente ◽  
Pablo Santana Santos
Keyword(s):  
Hydrological Cycle ◽  
Natural Vegetation ◽  
Landsat 8 ◽  
Landsat 8 Oli ◽  
Palabras Clave ◽  
El Sistema ◽  
History Of ◽  
Main Canal ◽  
Del Rio ◽  
Semi Arid

O histórico de ocupação da sub-bacia do rio Gavião passou por transformações socioeconômicas expressivas nos últimos 30 anos. Desse modo,preocupações com preservação ou recuperação da cobertura vegetal influência, positivamente, na manutenção do ciclo hidrológico da sub-bacia. A presente pesquisa teve como objetivo analisar a modificação da vegetal natural entre os anos de 1988a 2015 na sub-bacia hidrográfico do rio Gavião (semiárido brasileiro). Foram utilizados as técnicas sensoriamento remoto e Processamento Digital de Imagens - PDI para aquisição e processamento dos produtos orbitais (satélites landsat5 TM e landsat 8 OLI). E o Sistema de Informações Geográficas – SIG para armazenamento e análise do banco de dados alfanumérico georreferenciado. Os resultados indicam redução da cobertura vegetal de 751,69 km², entre os anos de 1988 a 2015. Também, manchas de desmatamento em áreas de nascentes, na parte alta da rede de drenagem e no dessegue do canal principal. Assim, a presente pesquisa chama atenção para os efeitos da mudança da vegetação natural para outros usos da terra (solo exposto, plantio, entre outros), a concentração do desmatamento em áreas de fragilidade ambiental. Palavras-chave: Landsat; Desmatamento; Semiárido brasileiro.   GEOTECHNOLOGIES AS SUPPORT FOR ANALYSIS OF NATURAL VEGETATION IN THE HYDROGRAPHIC BASIN OF HAWK RIVER (1988 A 2015) Abstract  The occupation history of the Hawk River sub-basin underwent significant socioeconomic transformations in the last 30 years. Thus, concerns for preservation or recovery of vegetation cover positively influence the maintenance of the sub-basin's hydrological cycle. The present research had as objective to analyze the modification of the natural vegetal between the years of 1988 to 2015 in the hydrographic sub-basin of the river Gavião (semi-arid Brazilian).The techniques of remote sensing and Digital Image Processing (PDI) were used for the acquisition and processing of orbital products (landsat 5 TM and landsat 8 OLI satellites). The Geographic Information System - GIS for storage and analysis of the georeferenced alphanumeric database. The results indicate a reduction of the vegetal cover of 751,69 km ², between the years of 1988 to 2015. In addition, deforestation patches in areas of springs, in the upper part of the drainage network and in the main canal deregulation. Thus, the present research draws attention to the effects of changing natural vegetation to other land uses (exposed soil, planting, among others), the concentration of deforestation in areas of environmental fragility.  Keywords: Landsat; deforestation; Brazilian semi-arid.   GEOTECNOLOGÍA COMO SOPORTE PARA EL ANÁLISIS DE VEGETACIÓN NATURAL DE LA SUBCUENCA DEL RÍO GAVILÁN (1988 A 2015) Resumen La historia de laocupación de lasub-cuencadelrío Gavião fue sometido a importantes cambios socioeconómicos enlos últimos 30 años. De este modo, preocupación por lapreservación o restauración de lacubierta vegetal influencia positiva enelmantenimientodel ciclo hidrológico de lasubcuenca. Esta investigacióntuvo como objetivo analizarlamodificación de lavegetación natural entre losaños 1988-2015 enlasubcuenca hidrográfica delrío Gavião (semiárido brasileño). Como apoyo técnico, lateledetección y la técnica de imagen digital se utiliza Procesamiento - PDI para laadquisición y procesamiento de productosorbitales (satélites Landsat 5 y Landsat TM 8 OLI). Y el Sistema de Información Geográfica - SIG para elalmacenamiento y análisis de la base de datos alfanuméricos georeferenciada. Los resultados indicanlareducción de lacubierta vegetal de 751.69 km², entre losaños 1988-2015. Tambiénlas manchas de deforestaciónenlascabecerasenla parte superior del sistema de drenaje y dessegue el canal principal. Así, estainvestigaciónllamalaatención sobre losefectosdelcambio de lavegetación natural a otros usos de latierra (sueloexpuesto, ,plantación, etc.), laconcentración de ladeforestaciónen áreas ambientalmente frágiles. Palabras clave: Landsat; deforestación; semiárido brasileño.

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