scholarly journals Development of a System Dynamics Computer Model for the Simulation of the Effects of an Alternate Water Source Development Project on the Water Supply Systems Management and Customer Satisfaction

10.29007/3s3f ◽  
2018 ◽  
Author(s):  
Suwan Park ◽  
Jae-Hong Ha
Keyword(s):  
Customer Satisfaction ◽  
Water Supply ◽  
System Dynamics ◽  
Water Source ◽  
Development Project ◽  
Service Improvement ◽  
Water Supply Systems ◽  
Computer Simulation Model ◽  
Improvement Project ◽  
Satisfaction Index

In this paper, a System Dynamics (SD) computer simulation model was developed to assess the effects of developing and providing an alternate water source on the management of a water supply system and customer satisfaction. A water supply service satisfaction index was also developed to estimate the level of overall customer satisfaction on water supply service. Data from the Busan water supply authority and the Korea Development Institute regarding the Nakdong riverbank filtration development were utilized for the construction of the model. Major managerial indicators of the system under study were analyzed by the simulations of the model that incorporates the development of the alternate water source for Busan. The developed SD model and the water service index may be further utilized as a tool that can assess the extent and timing of an additional service improvement project.

scholarly journals Does the source of water for piped supplies affect child health? Evidence from rural Vanuatu

2019 ◽  
Vol 9 (3) ◽  
pp. 591-595
Author(s):  
Tim Foster ◽  
Emily Rand ◽  
Erie Sami ◽  
Brieana Dance ◽  
Jeremy Kohlitz ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Source ◽  
Service Level ◽  
Water Systems ◽  
Global Network ◽  
Water Supply Systems ◽  
Piped Water ◽  
Generous Support ◽  
Year 2000 ◽  
Supply Systems

Abstract Piped water systems are considered to provide the highest service level for drinking water supplies; however, global monitoring of safe water access pays little attention to the type of water source that piped systems draw upon, even if the water is not treated prior to distribution. This study sought to understand whether the source of water for untreated piped supplies influences the prevalence of diarrhoea among children in rural Vanuatu. The analysis was based on a dataset integrating a Demographic and Health Survey and a nationwide water supply inventory. After adjusting for a range of potential confounders, the results revealed a significant association between diarrhoea and the type of water source supplying a piped system. Compared with borehole-supplied piped systems, spring-fed piped systems were significantly associated with increased odds of diarrhoea (adjusted odds ratio [AOR] 5.8, 95% confidence interval [CI] 1.1–31, p = 0.040). No significant association between diarrhoea and piped systems drawing on surface water was observed. Increased odds of diarrhoea were significantly associated with water supply systems constructed prior to the year 2000 (AOR 4.9, 95% CI 1.9–13, p = 0.001). The results highlight the need for improvements in spring protection as well as ongoing maintenance and periodic renewal of water supply infrastructure. This article has been made Open Access thanks to the generous support of a global network of libraries as part of the Knowledge Unlatched Select initiative.

Achieving sustainable irrigation development in agricultural areas of Serbia with limited water resources

2019 ◽  
Vol 48 (2) ◽  
pp. 126-135 ◽  
Author(s):  
Željka Rudić ◽  
Goran Nikolić ◽  
Dragiša Stević ◽  
Mile Božić ◽  
Ksenija Mačkić ◽  
...  
Keyword(s):  
Water Supply ◽  
Interdisciplinary Approach ◽  
Water Source ◽  
Irrigated Agriculture ◽  
Water Supply Systems ◽  
Wide Range ◽  
Agricultural Areas ◽  
Sustainable Irrigation ◽  
Supply Systems

Irrigation has contributed significantly to poverty alleviation and food security; however, the sustainability of irrigated agriculture is being questioned both economically and environmentally. Agriculture is the economic sector where most water is consumed, but the lowest price is practised. This article presents an interdisciplinary approach to selecting and prioritizing infrastructure, by differentiating water sources for irrigation, in the case of two complex irrigation systems. Comparative analysis was undertaken for major hydrological, hydraulic, hydrotechnical and economic parameters in order to estimate a long-term water supply for irrigation. In the case of complex irrigation water supply systems, differentiating the ‘subsystems’ per water source and allowing their separate development require less investment and give a better chance for the project implementation. The average calculated investments in basic irrigation infrastructure were in a wide range, from EUR3327 to 10,103 ha−1, depending on anticipated water source (impoundments, groundwater and rivers). Economic water price also varied widely, EUR0.09–0.30 m−3, depending on the water source for irrigation.

scholarly journals Recycling water in U.S. cities: understanding preferences for aquifer recharging and dual-reticulation systems

Water Policy ◽  
2019 ◽  
Vol 21 (6) ◽  
pp. 1207-1223 ◽  
Author(s):  
David J. Hess ◽  
Brandi M. Collins
Keyword(s):  
Water Supply ◽  
Groundwater Recharge ◽  
Power Plants ◽  
Potable Water ◽  
Water Source ◽  
Water Supply Systems ◽  
Aquifer Recharge ◽  
Recycled Water ◽  
Water Supplies ◽  
Supply Systems

Abstract Recycling of effluent water from urban water-supply systems is often a more sustainable water source than increased use of surface sources, groundwater sources, and desalination. However, water-supply organizations (WSOs) often do not take full advantage of recycled water. Although recycling water for direct potable use is efficient, public concern with safety has tended to cause WSOs to favor other uses for recycled water. This study examines patterns in the degree of utilization of two main indirect uses of recycled water: dual-reticulation systems and groundwater recharge. Drawing on case studies of four U.S. cities that are leaders in the use of recycled water, the study identifies conditions that favor the choice of one option over the other. Where cities are concerned with groundwater recharge of potable water supplies, they tend to prefer non-recycled water if available for recharge projects. However, where non-recycled water supplies are limited, recycled water may be prioritized for aquifer recharge. Otherwise, the preference is for use by large industrial partners such as power plants or for exchanges for higher-quality potable water resources with rural systems. In contrast, dual-reticulation (purple-pipe) systems for direct nonpotable recycling face steep economic and technical challenges.

scholarly journals Risk assessment and water safety plan: case study in Beijing, China

2014 ◽  
Vol 13 (2) ◽  
pp. 510-521 ◽  
Author(s):  
Bixiong Ye ◽  
Yuansheng Chen ◽  
Yonghua Li ◽  
Hairong Li ◽  
Linsheng Yang ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Water Supply ◽  
Water Source ◽  
Water Disinfection ◽  
Control Measures ◽  
Water Supply Systems ◽  
Water Safety ◽  
Rural Water Supply ◽  
Rural Water ◽  
Beijing China

Two typical rural water utilities in Beijing, China were chosen to describe the principles and applications of water safety plans (WSP), to provide a methodological guide for the actual application and improve the quality of rural drinking water quality, and to establish an appropriate method for WSP applied in rural water supply. Hazards and hazardous events were identified and risk assessment was conducted for rural water supply systems. A total of 13 and 12 operational limits were defined for two utilities, respectively. The main risk factors that affect the water safety were identified in water sources, water processes, water disinfection systems and water utility management. The main control measures were strengthening the water source protection, monitoring the water treatment processes, establishing emergency mechanisms, improving chemical input and operating system management. WSP can be feasibly applied to the management of a rural water supply.

scholarly journals VISITORS’ SATISFACTION OF AGRITOURISM AT AGRIBISNIS ALOE VERA CENTER

Agric ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 15-30
Author(s):  
Agustinus Bertolomeus Eko Dony Prayudi ◽  
Eva Dolorosa ◽  
Dewi Kurniati
Keyword(s):  
Customer Satisfaction ◽  
Service Sector ◽  
Aloe Vera ◽  
Development Planning ◽  
City Government ◽  
Service Improvement ◽  
Satisfaction Index ◽  
Research Findings ◽  
Planning Development ◽  
Cartesian Coordinate

Aloe Vera is one of prime farming products in Pontianak so that the city government established Aloe Vera Center as the center for research and development of Aloe Vera product. In 2002, Aloe Vera Center also added an agritourism service there. Agritourism in Aloe Vera Center is expected to keep developing and face the challenge to attract visitors. For a unit of government under service sector, visitor is the most important parameter to make development planning. Therefore, as a basis of development planning, a research is needed to measure satisfaction variable in order to analyze visitors’ satisfaction. This study aims to determine the satisfaction variable of visitors who have the highest and lowest values and which variables are the main problems of visitors so that policy makers can use this research as a basis for planning development facilities, infrastructure and further service improvement. There are 100 respondents with the determination of samples from visitors who came. Conducted with non-probability sampling through convenience sampling method. There was a screening at the beginning of the questionnaire where the visitors who were used as respondents were visitors who had finished visiting. This research used Important Performance Analysis method and Customer Satisfaction Index. Research findings showed that from 5 dimensions and 27 variables analyzed, it was obtained that CSI score was 78,54%, which means that the satisfaction level of the visitors of Agribisnis Aloe Vera Center at whole is at the minimum limit, research finding is on the range 77%<X<80%. It means that, if there were no improvement on the attributes, the satisfaction of the visitors would also deteriorate. Besides, from Cartesian coordinate system, it was found that there were five prioritized variables that need to be improved. The researcher concluded that the Aloevera Manager must be giving attention to the parking area. More improving the cleanliness, comfort, neat location. Providing repairs to the Gazebo Facility and adding wudhu place, prayer mats and mukena as a prayer room facility. This needs to be done to increase customer satisfaction and increase visits. Managers must also make satisfaction analysis as a reference for preparing the following year’s budget. 

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