Should we value rain harvesting more in Türkiye for mitigating precipitation extremes

Abstract

Mitigating precipitation extremes is a major issue due to destructive global warming and climate change. Heavy rainfall and drought have posed a threat to human life and ecology. That said, new strategies and new action plans are needed at local and global levels through needed cooperation from different stakeholders to handle the possible risks associated with precipitation extremes. Turkey has become one of the most vulnerable countries involved in climate change due to its geographical location, rapid urbanization, and deforestation. Many forests have been destroyed to make room for agriculture, animal grazing as well as for manufacturing and construction. The impact has caused complications in landscapes. Precipitation extremes, such as heavy rainfalls and drought, are posing significant threats for many cities in Turkey. In recent years Turkey has faced a large number of extreme events regarding precipitation. In this line, the present study aims to explore the potential benefits of rainwater harvesting (RHH) in mitigating precipitation extremes by overviewing regulatory actions of rainwater harvesting and best practices worldwide. In addition an interview-based survey was conducted with domain experts in the water management field to better understand the current challenges of stormwater management in Turkey and discuss the role of rainwater harvesting against precipitation extremes. The results of the study have shown that Turkey has several problems with infrastructure to mitigate precipitation extremes, such as shortcomings in capacity and old water management systems, unseparated water collection and sewage systems, and lack of green infrastructure. In addition to urbanization, expansion in industry and tourism may cause water unavailability. The study has also indicated that many authorities around the globe try to boost RWH use by stipulating or encouraging RWH through incentives to save a large amount of water by implementing different projects. This research has argued that RWH promises several benefits thanks to its cost-effectiveness and contribution to water storage. Therefore, this study has recommended that policymakers should take immediate action against precipitation extremes by introducing new regulations, such as mandating rainwater harvesting for old buildings, industrial and touristic places. Preparing new guidelines and applying rooftop RWH systems that comply with Building Code requirements should also be considered for the widespread use of rainwater in rural and urban areas.

Keywords

• Rainwater harvesting
• precipitation extremes
• rainfall
• drought

References

1. A. R. M. Rashid, M. A. Bhuiyan, B. Pramanik, and N. Jayasuriya, “A comparison of environmental impacts between rainwater harvesting and rain garden scenarios,” Process Safety and Environmental Protection, Vol. 159, pp. 198–212, 2022. [CrossRef]
2. E. R. Rene, J. Ge, G. Kumar, R. P. Singh, and S. Varjani, “Resource recovery from wastewater, solid waste, and waste gas: Engineering and management aspects,” Environmental Science and Pollution Research, Vol. 27(15), pp. 17435–17437, 2020. [CrossRef]
3. O. Mehta, and K. K. Singh, “Rain garden - A solution to urban flooding: A review.” Edited by Agnihotri, A., Reddy, K., Bansal, A. Sustainable Engineering. pp. 27–35, 2019. [CrossRef]
4. I. C. Yilmaz, and D. Yilmaz, “Optimal capacity for sustainable refrigerated storage buildings,” Case Studies in Thermal Engineering, Vol. 22, Article 100751, 2020. [CrossRef]
5. J. G. Sánchez-Torija, E. L. Gómez-Rubiera, and C. B. Frutos, “The incorporation of the study into water consum ption in energy audits in schools,” Revista de la Construcción, Vol. 16(3), pp. 361–373. 2017. [CrossRef]
6. M. L. Meilvang, “From rain as risk to rain as resource: Professional and organizational changes in urban rainwater management,” Current Sociology, Vol. 69(7), pp. 1034–1050, 2021. [CrossRef]
7. G. Markovi, M. Zele, D. Káposztásová, and G. Hudáková, “Rainwater infiltration in the urban areas,” WIT Transactions on Ecology and the Environment, Vol. 181, pp. 313–320, 2014. [CrossRef]
8. C. Pla, D. Benavente, J. Valdes-Abellan, and Z. Kovacova, “Effectiveness of two lightweight aggregates for the removal of heavy metals from contaminated urban stormwater,” Journal of Contaminant Hydrology, Vol. 239, Article 103778, 2021. [CrossRef]

9. B. K. Biswal, K. Vijayaraghavan, M. G. Adam, D. Lee Tsen-Tieng, A. P. Davis, and R. Balasubramanian, “Biological nitrogen removal from stormwater in bioretention cells: A critical review,” Critical Reviews in Biotechnology, Vol. 42(5), pp. 713–735, 2022. [CrossRef]
10. S. Ahilan, J. Webber, P. Melville-Shreeve, and D. Butler, “Building urban flood resilience with rainwater management,” Proceedings of the 17th International Computing and Control for the Water Industry Conference. Exeter, United Kingdom, 2019.
11. Y. Ünlükaplan, and B. Tiğiz, “Cumhuriyetin 100. Yılında sürdürülebilir su kullanımında yeşil alan tasarım ve yönetiminin etkinliğinin araştırılması: Ankara Dikmen Vadisi örneği,” Kent Akademisi, Vol. 16, pp. 115–130, 2023.
12. G. Buçak, “Kırklareli'nde evsel su kullanımı ve korunumuna yönelik bir uygulama önerisi,” Available at: https://www.researchgate.net/profile/Seda-Solakoglu/publication/376835066_TC_HALIC_UNIVERSITESI_LISANSUSTU_EGITIM_ENSTITUSU_MIMARLIK_ANABILIM_DALI_PROGRAMI_SU_YONETIMI_KAPSAMINDA_MOBIL_KONUTLARDA_SUYUN_ETKIN_KULLANILMASININ_SURDURULEBILIR_KALKINMA_ACISINDAN_DEGERLENDIRILMES/links/658bed413c472d2e8e908810/TC-HALIC-UeNIVERSITESI-LISANSUeSTUe-EGITIM-ENSTITUeSUe-MIMARLIK-ANABILIM-DALI-PROGRAMI-SU-YOeNETIMI-KAPSAMINDA-MOBIL-KONUTLARDA-SUYUN-ETKIN-KULLANILMASININ-SUeRDUeRUeLEBILIR-KALKINMA-ACISINDAN-DEGERLE.pdf. Accessed on Jul 17, 2024.
13. N. İ. Şahin, and G. Manioğlu, “Water conservation through rainwater harvesting using different building forms in different climatic regions,” Sustainable Cities and Society, Vol. 44, pp. 367–377, 2019. [CrossRef]
14. A. Teston, M. S. Geraldi, B. M. Colasio, and E. Ghisi, “Rainwater harvesting in buildings in Brazil: A literature review,” Water, Vol. 10(4), Article 471, 2018. [CrossRef]
15. J. M. Wanyonyi, “Rainwater harvesting possibilities and challenges in Kenya,” Kenya Rainwater Association, 2013. [CrossRef]
16. S. S. Mumtaaz Sayed, and P. H. Sawant, “Financial feasibility analysis of water conservation components in mass housing projects: Suburban Indian Case review,” Journal of Architectural Engineering, Vol. 22(2), Article 04016001, 2016. [CrossRef]
17. S. R. Ghimire, D. W. Watkins Jr, and K. Li, “Life cycle cost assessment of a rainwater harvesting system for toilet flushing,” Water Science and Technology: Water Supply, Vol. 12(3), pp. 309–320, 2012. [CrossRef]
18. Resmi Gazete, “Yağmursuyu toplama, depolama ve deşarj sistemleri hakkında yönetmelik,” Available at: https://www.resmigazete.gov.tr/eskiler/2017/06/20170623-8.htm Accessed on Apr 15, 2024.
19. Resmi Gazete, “Planli alanlar imar yönetmeliğinde değişiklik yapilmasina dair yönetmelik,” Available at: https://www.resmigazete.gov.tr/eskiler/2021/07/20210711-1.htm Accessed on Aug 15, 2023.
20. Trading Economics, “Türkiye – Yağış,” Available at: https://tr.tradingeconomics.com/turkey/precipitation Accessed on Apr 15, 2024.
21. World Bank, “Open data,” Available at: https://data.wolrdbank.org/ Accessed on Apr 15, 2024.
22. Climate Change Knowledge Portal, “Türkiye,” Available at: https://climateknowledgeportal.worldbank.org/country/turkiye Accessed on Apr 15, 2024.
23. Turkish State Meteorological Service, “2023-2024 su yılı 6 aylık alansal kümülatif yağış raporu,” Available at: https://www.mgm.gov.tr/veridegerlendirme/yagis-raporu.aspx?b=k Accessed on Apr 15, 2024.
24. Blomberght, “Türkiye’de aşırı hava olayları 2023’te rekor kırdı,” Available at: https://www.bloomberght.com/turkiye-de-asiri-hava-olaylari-2023-te-rekor-kirdi-2346873 Accessed on Apr 15, 2024
25. RWH, “Rainwater harvesting in Tokyo,” Available at: http://www.rainwaterharvesting.org/international/tokyo.htm Accessed on Jul 17, 2024.
26. Learning Legacy, “Rainwater harvesting at the Velodrome,” Available at: https://webarchive.nationalarchives.gov.uk/ukgwa/20180426101359/http://learninglegacy.independent.gov.uk//documents/pdfs/sustainability/154-rainwater-harvesting-sust.pdf Accessed on Jul 17, 2024.
27. RWH, “Rainwater harvesting in Germany,” Available at: http://www.rainwaterharvesting.org/international/germany.htm Accessed on Jul 17, 2024.
28. RWH, “Rainwater harvesting in Singapore,” Available at: http://www.rainwaterharvesting.org/international/singapore.htm Accessed on Jul 17, 2024.
29. NS Associates, “HPCL residential colony, Chembur Mumbai,” Available at: https://nsassociates.co.in/success-stories-rainwater-harvesting/ Accessed on Jul 17, 2024.
30. Smartwateronline, “Rainwater as a solution to water scarcity: Case studies from around the world,” Available at: https://smartwateronline.com/news/rainwater-as-a-solution-to-water-scarcity-case-studies-from-around-the-world Accessed on Jul 17, 2024.
31. E. J. Peters, “Success and success factors of domestic rainwater harvesting projects in the Caribbean,” Journal of Sustainable Development, Vol. 9(5), pp. 55–69. 2016. [CrossRef]
32. H. Chander, and G. Kumar, “Rainwater harvesting structures as an alternative water resource under rain-fed conditions of district Hamirpur, Himachal Pradesh, India,” CPUH-Research Journal, Vol. 3(2), pp. 226–233, 2018. [CrossRef]
33. M. Teichmann, D. Kuta, and N. Szeligova, “Urban rainwater management tools,” IOP Conference Series: Earth and Environmental Science, Vol. 444(1), Article 012052, 2020.
34. J. A. Michel, G. Reginatto, J. Mazutti, L. L. Brandli, and R. M. L. Kalil, “Selection of Best Practices for Climate Change Adaptation with Focus on Rainwater Management. Edited by Leal Filho, W., Borges de Brito, P., Frankenberger, F. International Business, Trade and Institutional Sustainability. pp. 915–932, 2020. [CrossRef]
35. B. Liu, J. J. Huang, E. McBean, and Y. Li, “Risk assessment of hybrid rain harvesting system and other small drinking water supply systems by game theory and fuzzy logic modeling,” Science of The Total Environment, Vol. 708, Article 134436, 2020. [CrossRef]
36. S. Yannopoulos, I. Giannopoulou, and M. Kaiafa-Saropoulou, “Investigation of the current situation and prospects for the development of rainwater harvesting as a tool to confront water scarcity worldwide,” Water, Vol. 11(10), Article 2168, 2019. [CrossRef]
37. M. C. Mendonça, “Plano nacional de recursos hídricos,” Available at: https://www.gov.br/mdr/pt-br/assuntos/seguranca-hidrica/plano-nacional-de-recursos-hidricos-1/pnrh_2022_para_baixar_e_imprimir.pdf Accessed Jul 17, 2024.
38. J. Gnadlinger, A. de Souza Silva, L. T. de Lima Brito, “O programa uma terra e duas águas para um semi-arido sustentavel,” Available at: https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/159651/1/OPB1516.pdf. Accessed Jul 17, 2024.
39. C. Dierkes, T. Lucke, and B. Helmreich, “General technical approvals for decentralised sustainable urban drainage systems (SUDS)—The current situation in Germany,” Sustainability, Vol. 7(3), pp. 3031–3051, 2015. [CrossRef]
40. A. G. Marwas, “Water & Water Treatment in India,” OSEC, 2010.
41. L. Fu, “Advancing rainwater harvesting systems to help mitigate the urban flooding problems in China,” Available at: https://getd.libs.uga.edu/pdfs/fu_li_201805_mla.pdf Accessed on Jul 17, 2024.
42. K. E. Lee, M. Mokhtar, M. M. Hanafiah, A. A. Halim, and J. Badusah, “Rainwater harvesting as an alternative water resource in Malaysia: Potential, policies and development,” Journal of Cleaner Production, Vol. 126, pp. 218–222, 2016. [CrossRef]
43. J. Gabe, S. Trowsdale, and D. Mistry, “Mandatory urban rainwater harvesting: Learning from experience,” Water Science and Technology, 65(7), pp. 1200–1207. 2012. [CrossRef]
44. R. Rose, “Rainwater harvesting, building and technology,” Available at: https://organicnz.org.nz/magazine-articles/rainwater-harvesting/ Accessed on Jul 17, 2024.
45. Branz Facts, “Harnessing rainwater and greywater. rainwater harvesting systems in New Zealand houses,” Available at: https://d39d3mj7qio96p.cloudfront.net/media/documents/BRANZ-Facts-HRG-1-Rainwater-harvesting-systems.pdf.Accessed on Jul 17, 2024.
46. Environment Agency, “Rainwater harvesting: Regulatory position statement,” Available at: https://www.gov.uk/government/publications/rainwater-harvesting-regulatory-position-statement/rainwater-harvesting-regulatory-position-statement Accessed Jul 17, 2024.
47. Pacific Northwest National Laboratory, “Rainwater harvesting state regulations and technical resources,” Available at: https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-24347.pdf Accessed Jul 17, 2024.
48. İzmir Belediyesi, “Izmir sponge city,” Available at: https://yagmusuyu.izmir.bel.tr/ Accessed on Apr 17, 2024.
49. O. Panasiuk, A. Hedström, J. Marsalek, R. M. Ashley, and M. Viklander, “Contamination of stormwater by wastewater: A review of detection methods,” Journal of environmental management, Vol. 152, pp. 241–250, 2015. [CrossRef]
50. Delegation of the European Union to Türkiye, (2022) https://www.avrupa.info.tr/ Accessed on Nov 22, 2022.
51. A. Tanik, “Yağmur suyu toplama, biriktirme ve geri kullanımı” Available at: https://www.skb.gov.tr/wp-content/uploads/2017/11/Prof.-Dr.-Aysegul-TANIK.pdf Accessed Jul 17, 2024.
52. M. Z. I. Bashar, M. R. Karim, and M. A. Imteaz, “Reliability and economic analysis of urban rainwater harvesting: A comparative study within six major cities of Bangladesh,” Resources, Conservation and Recycling, Vol. 133, pp. 146–154, 2018. [CrossRef]