Role of The Association of Engineers, India in Promoting Rooftop Rainwater Harvesting and Artificial Recharge

2018 ◽  
Vol 88 (3-4) ◽  
pp. 16
Author(s):  
Er. Chittaranjan Haldar
Keyword(s):  
Artificial Recharge ◽  
Rainwater Harvesting ◽  
Rooftop Rainwater Harvesting

scholarly journals Optimal Sizing of Rooftop Rainwater Harvesting Tanks for Sustainable Domestic Water Use in the West Bank, Palestine

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 573
Author(s):  
Sameer Shadeed ◽  
Sandy Alawna
Keyword(s):  
Storage Tank ◽  
Rainwater Harvesting ◽  
West Bank ◽  
Family Members ◽  
Optimal Size ◽  
Storage Tanks ◽  
Domestic Water ◽  
The West ◽  
Average Family ◽  
Rooftop Rainwater Harvesting

In highly water-poor areas, rooftop rainwater harvesting (RRWH) can be used for a self-sustaining and self-reliant domestic water supply. The designing of an optimal RRWH storage tank is a key parameter to implement a reliable RRWH system. In this study, the optimal size of RRWH storage tanks in the different West Bank governorates was estimated based on monthly (all governorates) and daily (i.e., Nablus) inflow (RRWH) and outflow (domestic water demand, DWD) data. In the estimation of RRWH, five rooftop areas varying between 100 m2 and 300 m2 were selected. Moreover, the reliability of the adopting RRWH system in the different West Bank governorates was tested. Two-time series scenarios were assumed: Scenario 1, S1 (12 months, annual) and scenario 2, S2 (8 months, rainy). As a result, reliable curves for preliminary estimation of optimal RRWH storage tanks for the different West Bank governorates were obtained. Results show that the required storage tank for S1 (annual) is more than that of the S2 (rainy) one. The required storage tank to fulfill DWD is based on the average rooftop area of 150 m2, the average family members of 4.8, and the average DWD of 90 L per capita per day (L/c/d) varies between (75 m3 to 136 m3) and (24 m3 to 84 m3) for S2 for the different West Bank governorates. Further, it is found that the optimal RRWH tank size for the 150 m2 rooftop ranges between 20 m3 (in Jericho) to 75 m3 (in Salfit and Nablus) and between 20 m3 (in Jericho) to 51 m3 (in Jerusalem) for S1 and S2 scenarios, respectively. Finally, results show that the implementation of an RRWH system for a rooftop area of 150 m2 and family members of 4.8 is reliable for all of the West Bank governorates except Jericho. Whereas, the reliability doesn’t exceed 19% for the two scenarios. However, the reduction of DWDv is highly affecting the reliability of adopting RRWH systems in Jericho (the least rainfall governorate). For instance, a family DWDv of 3.2 m3/month (25% of the average family DWDv in the West Bank) will increase the reliability at a rooftop area of 150 m2 to 51% and 76% for S1 and S2, respectively.

scholarly journals Estimation of the reduction in flood peak and flood volume due to rooftop rainwater harvesting for nonpotable use

2020 ◽  
Author(s):  
Kathrina Marie M. Borgonia ◽  
Ricardo L. Fornis
Keyword(s):  
Rainwater Harvesting ◽  
Flood Peak ◽  
Flood Volume ◽  
Rooftop Rainwater Harvesting

scholarly journals Water Distribution from Artificial Recharge via Infiltration Basin under Constant Head Conditions

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1052
Author(s):  
Tiansong Qi ◽  
Longcang Shu ◽  
Hu Li ◽  
Xiaobo Wang ◽  
Yanqing Men ◽  
...  
Keyword(s):  
Vadose Zone ◽  
Water Distribution ◽  
Artificial Recharge ◽  
Buffer Zone ◽  
Experimental Conditions ◽  
Correlation And Regression Analysis ◽  
Infiltration Basin ◽  
Constant Head ◽  
3D Software

The vadose zone plays a significant role during artificial recharge via the infiltration basin. Its thickness, lithology, heterogeneity, among others greatly affect the recharge efficiency. The main objective of this research is to establish the role of the vadose zone and the impacts of infiltration basin features and vadose zone factors on water distributions. In this work, an ideal conceptual model was considered, and mathematical models were built using HYDRUS (2D/3D) software package version 2.05. A total of 138 numerical experiments were implemented under seven types of experimental conditions. The experimental data were analyzed with the aid of correlation and regression analysis. The results showed that infiltration basin features and vadose zone factors had various impacts on water distribution, low permeability formation had various effects on evaporation depending on its depth, and there were consistent, similar, or different variation trends between infiltration and recharge. In conclusion, it is recommended that when the vadose zones are to be chosen as an infiltration basin site, the trade-off among the infiltration, recharge, storage, and evaporation should be seriously considered. This paper may contribute to a better understanding of the vadose zone as a buffer zone for artificial recharge.

In-situ treatment of fluoride in a hard rock setting by rooftop rainwater harvesting recharge scehme

2019 ◽  
Author(s):  
P.R Pujari ◽  
C. Padmakar ◽  
R. Quamar ◽  
L. Deshpande ◽  
R. Janipella ◽  
...  
Keyword(s):  
Hard Rock ◽  
Rainwater Harvesting ◽  
Rooftop Rainwater Harvesting

The role of artificial recharge in integrated water management in Egypt

2020 ◽  
pp. 47-52
Author(s):  
Fatma Attia ◽  
Madiha Moustafa ◽  
Theo Olsthoorn ◽  
Ebel Smidt
Keyword(s):  
Water Management ◽  
Artificial Recharge ◽  
Integrated Water Management

Rainwater Harvesting and Artificial Recharge of Groundwater

2018 ◽  
pp. 421-439 ◽  
Author(s):  
Ajoy Kumar Misra
Keyword(s):  
Artificial Recharge ◽  
Rainwater Harvesting

Quantifying the First Flush in Rooftop Rainwater Harvesting Through Continuous Monitoring and Analysis of Stormwater Runoff

2011 ◽  
Author(s):  
Jessica J Lay ◽  
Jason R Vogel ◽  
Jason B Belden ◽  
Glenn O Brown
Keyword(s):  
Continuous Monitoring ◽  
Rainwater Harvesting ◽  
Stormwater Runoff ◽  
First Flush ◽  
Rooftop Rainwater Harvesting
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