scholarly journals Domestic water consumption pattern by urban households

2020 ◽  
Author(s):  
Amarasingam Narmilan ◽  
Narmilan Puvanitha ◽  
Gnanachelvam Niroash ◽  
Muthucumaran Sugirtharan ◽  
Ratnarajah Vasssanthini

Abstract. Water has been recognized as one of the most significant natural resources and crucial for health and wealth. The increased demand for water has imposed pressure on the water supply system, which has led to environmental problems such as over-exploitation of water resources and breaks in the balance of the ecosystem. Determining the behavior of domestic water consumers can facilitate a more proactive approach to water demand management, and serves as the foundation for the development of any intervention strategies that seek to bring about sustained and substantial reductions in domestic water consumption. This study tried to investigate household water consumption patterns and management practices along with comparing the effectiveness of different water management measures on reducing the water deficit of the district. The primary data was collected through a questionnaire survey from 75 households belonging to the urban area in Batticaloa District in Manmunai Pattu, Sri Lanka. The data were analyzed both quantitatively and qualitatively. The findings show that people with higher incomes in urban areas are using more water than people with lower incomes. The water usage depends on the living standards, family size, age, and education level of household members and the number of taps present in the household. It is believed that the results of the study would be beneficial for domestic water consumption in urban Batticaloa.

1999 ◽  
Vol 39 (5) ◽  
pp. 65-72 ◽  
Author(s):  
P. M. J. Terpstra

Present water usage of our society cannot be considered sustainable; too much water of high quality is taken from the eco-systems and to much polluted water is discharged. Part of this problem is due to domestic water usage. In the past decade a number of technical measures on appliance level have been developed to reduce domestic water consumption and the efficiency of chemicals used has been increased to enable lower dosages. But further reductions are needed. Reuse and/or recycling water within the domestic system could, in theory, lead to further reductions. Models for integration and cascading of domestic water flows that have been developed are discussed. It is shown that water usage systems with various levels of integration and cascading can lead to significant reductions in domestic water consumption and thus lower the environmental impact of domestic water usage.


Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2620 ◽  
Author(s):  
Wenge Zhang ◽  
Xianzeng Du ◽  
Anqi Huang ◽  
Huijuan Yin

Proper water use requires its monitoring and evaluation. An indexes system of overall water use efficiency is constructed here that covers water consumption per 10,000 yuan GDP, the coefficient of effective utilization of irrigation water, the water consumption per 10,000 yuan of industrial value added, domestic water consumption per capita of residents, and the proportion of water function zone in key rivers and lakes complying with water-quality standards and is applied to 31 provinces in China. Efficiency is first evaluated by a projection pursuit cluster model. Multidimensional efficiency data are transformed into a low-dimensional subspace, and the accelerating genetic algorithm then optimizes the projection direction, which determines the overall efficiency index. The index reveals great variety in regional water use, with Tianjin, Beijing, Hebei, and Shandong showing highest efficiency. Shanxi, Liaoning, Shanghai, Zhejiang, Henan, Shanxi, and Gansu also use water with high efficiency. Medium efficiency occurs in Inner Mongolia, Jilin, Heilongjiang, Jiangsu, Hainan, Qinghai, Ningxia, and Low efficiency is found for Anhui, Fujian, Jiangxi, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, and Xinjiang. Tibet is the least efficient. The optimal projection direction is a* = (0.3533, 0.7014, 0.4538, 0.3315, 0.1217), and the degree of influence of agricultural irrigation efficiency, water consumption per industrial profit, water used per gross domestic product (GDP), domestic water consumption per capita of residents, and environmental water quality on the result has decreased in turn. This may aid decision making to improve overall water use efficiency across China.


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