The Impact of Rainwater Harvesting System Location on Their Financial Efficiency: A Case Study in Poland

This paper explores the impact of water conservation and rainwater harvesting practices implemented at the site or district scale on the infrastructure, energy and water cycles of their larger urban systems. A case study is presented of a conceptual development in a Southeast Asian climate. Two technologies are examined: water-efficient fixtures and appliances and rainwater harvesting and beneficial use. Practices to reduce water consumption at the site or district scale have implications in the larger system, ranging from reductions in water that has to be treated and distributed, reductions in wastewater that has to be collected and treated, and reductions in energy consumed. Similarly, using rainwater for irrigation will reduce the amount of potable water demand, and will have system energy implications. The paper considers performance criteria for the entire water-energy system, including peak runoff, pollutant loads, energy and carbon footprints.

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THE IMPACT OF GREEN INFRASTRUCTURE RAINWATER HARVESTING ON SUSTAINABLE URBANISM: CASE STUDY IN ALEXANDRIA, EGYPT

Sustainable Development and Planning X ◽

10.2495/sdp180671 ◽

2018 ◽

Cited By ~ 1

Author(s):

SALWA MOUSTAFA SHEHATA

Keyword(s):

Green Infrastructure ◽

Rainwater Harvesting ◽

Sustainable Urbanism ◽

The Impact

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An Analysis of Eco-Technology Allowing Water and Energy Saving in an Environmentally Friendly House—A Case Study from Poland

Buildings ◽

10.3390/buildings9080180 ◽

2019 ◽

Vol 9 (8) ◽

pp. 180 ◽

Cited By ~ 2

Author(s):

Agnieszka Stec ◽

Aleksandra Mazur

Keyword(s):

Life Cycle Cost ◽

Rainwater Harvesting ◽

Environmentally Friendly ◽

Heat Pumps ◽

Solar Panels ◽

Fossil Energy ◽

Alternative Systems ◽

Detached House ◽

The Impact

The Life Cycle Cost (LCC) analysis on selected alternative systems was carried out to reduce the demand for potable water and energy in a detached house designed in accordance with the concept of environmentally friendly house. The tests included a rainwater harvesting system, graywater recycling system, solar panels, photovoltaic panels, air heat pumps, ground heat pumps, wind turbines, drain water heat recovery units, and biomass boilers. The analysis was made for many investment variants where different combinations of the mentioned solutions were applied. In addition to the LCC analysis, some tests were also carried out to determine an impact of the investment options on the environment. This was done by calculating CO2, SO2, NOx, CO and dust emissions. The research was carried out for a different number of occupants and variable levels of water consumption, which allowed determining the impact of these parameters on the results obtained. They showed that for any of the computational cases the traditional option of the installation was not the most advantageous solution in financial and environmental terms, and the systems in question could be an alternative to this option. Thanks to their implementation, the consumption of fossil energy resources and natural water resources will be reduced, and the emission of pollutants will be limited, which will contribute to an improvement of the natural environment.

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Impact of Rainwater Harvesting on the Drainage System: Case Study of a Condominium of Houses in Curitiba, Southern Brazil

Water ◽

10.3390/w10081100 ◽

2018 ◽

Vol 10 (8) ◽

pp. 1100 ◽

Cited By ~ 8

Author(s):

Andréa Teston ◽

Celimar Teixeira ◽

Enedir Ghisi ◽

Ernani Cardoso

Keyword(s):

Water Consumption ◽

Rainwater Harvesting ◽

Drainage System ◽

Daily Rainfall ◽

Storage Tanks ◽

Southern Brazil ◽

Single Family ◽

Rainwater Tank ◽

The Impact

The objective of this work is to assess the impact of rainwater use in single-family houses on drinking water consumption and on the urban drainage system by means of a case study of a condominium of houses in the city of Curitiba, southern Brazil. A quantitative evaluation of the rainwater volume used and spilled in the recovery system was carried out using two methods for sizing the rainwater tank capacity. Using daily rainfall data and three demand scenarios of water consumption, it was possible to verify the efficiency and reliability of the adopted systems. Furthermore, in order to verify the impact on drainage, the greatest rainfall in the series was assessed and then it was possible to measure it by comparing the hydrograph peak flows with and without the rainwater harvesting systems in the watershed outfall, corresponding to the storage tanks (concrete boxes) in the condominium. It was concluded that there was a decrease in the peak flow of 4.9% and 4.4%, respectively, in the two storage tanks evaluated when the rainwater tank capacities were estimated using the method based on the German Practical Method.

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