Analysis of the effect of impermeability of urban soils on the infiltration of rainwater in the city of Recife, PE

Holanda, Marco Aurélio Calixto Ribeiro de; Soares, Willames de Albuquerque

doi:10.4136/ambi-agua.2386

Cited by 6 publications

(3 citation statements)

References 6 publications

(6 reference statements)

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“…The Pernambuco coast has an average annual rainfall of 2050 mm, being the area with the highest rainfall in northeastern Brazil, where the months of October through February are very dry with the rainy season beginning in March. The highest rainfall is usually recorded in June, with an average accumulation of more than 600 mm (Holanda and Soares, 2019).…”

Section: Methodsmentioning

confidence: 99%

Effects of rainwater intrusion on an activated sludge sewer treatment system

Oliveira¹,

Soares²,

Holanda³

2020

Rev. ambiente água

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Effluent collection and stormwater management make use of different drainage systems, which should remain unconnected with one another. If stormwater drains into sewage collection systems, it often causes changes in effluent quality indicators at sewage treatment plants. This study sought to quantify the changes caused by rain in a Wastewater Treatment Plant (WWTP) located in Paulista, PE, which uses the activated sludge system. Accordingly, changes in pH, temperature, BOD, and treatment efficiency at the inlet and outlet, as well as inlet flow were analyzed on dry and rainy days at the plant, which has a sewage capacity of 400 L s-1. The input volume was found to be greater than the design flow of the station, about 25%. With this, some relevant operational controls were identified, such as temporarily shutting down sewage pumping stations in order to maintain full operation of the system and avoid overload. The pH increases slightly in alkalinity, about 0.3, but this does not interfere with the treatment process. The temperature of the influent on rainy days is about 3 to 5 degrees cooler, depending on the intensity of the event. Using the T and Z tests, it was possible to identify that BOD concentrations in the influent and the effluent were not significantly different (uneq. var. t: 1.18 > 0.26 and uneq var. z: 0.71 > 0.48, respectively), and the organic load removal efficiency was maintained, contrary to what is expected with other, more simple types of treatment.

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Section: Methodsmentioning

confidence: 99%

Effects of rainwater intrusion on an activated sludge sewer treatment system

Oliveira¹,

Soares²,

Holanda³

2020

Rev. ambiente água

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“…O processo de urbanização que ocorre nas cidades, quando desordenadamente, é proporcional à substituição das superfícies permeáveis por impermeáveis, resultando, principalmente, na diminuição das taxas de infiltração das águas pluviais, nos aumentos do volume e velocidade do escoamento superficial e, consequentemente, na intensificação dos alagamentos e inundações. Estudos ao redor do mundo têm reportado estes impactos negativos (LIMTHONGSAKUL et al, 2017;BAI et al, 2018;LIU et al, 2018;ZHU et al, 2019), e muitas cidades brasileiras têm experimentado os reflexos desses desequilíbrios do ciclo hidrológico (SANTOS et al, 2017;HO-LANDA;SOARES, 2019).…”

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Caracterização hidráulica das camadas de um pavimento permeável

et al. 2020

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Os pavimentos permeáveis (PPs) são alternativas que reduzem os volumes dos hidrogramas de escoamento superficial gerados, além de favorecer a recarga dos aquíferos. Foi instalado um sítio experimental na cidade do Recife para estudo da técnica de PP com blocos vazados para amortecimento de alagamentos. O objetivo foi realizar a caracterização hidrodinâmica e avaliar a infiltração do revestimento e do subleito de um pavimento permeável a partir da metodologia Beerkan. Com isso foi possível simular o comportamento hidráulico do PP quando solicitado a um fluxo de escoamento superficial. Assim, conclui-se que o revestimento apresentou uma capacidade de infiltração maior que o subleito e a metodologia utilizada permitiu um entendimento isolado das propriedades de cada componente e uma compreensão conjunta do funcionamento hidráulico do dispositivo.

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“…However, due to interference of the soil processes by urbanization, soil characteristics in the urban area are highly altered, and also, the natural soil has been replaced by human-made materials. As a detailed in-situ measurement of soil information becomes expensive and time-consuming, the extrapolation of a few measurements to a neighborhood and other parts of the urban area is impossible (Holanda and Soares, 2019). Moreover, detailed urban surfaces such as wetlands and built-up areas are hidden when using the global soil database alone.…”

Section: Challenges In Data-scarcity For Flood Hazard Modelling In Developing Countriesmentioning

confidence: 99%

Advances in flash flood modelling in urbanized and data scarce-areas

Umer

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To Mama and Kikila i patient throughout this Ph.D. time. Next, I acknowledge a group of people who supported and helped me on this Ph.D. research and shared social life with me during these four years in Enschede.Starting from the beginning, my deepest gratitude goes to my supervisor, Prof. dr. Victor Jetten and dr.ir. Janneke Ettema, for their support, insight, and expertise throughout all these years. Not only have they introduced me to the scientific world, but they also have contributed to educating me to be a better researcher over these years. Indeed, their patience and unlimited advice are what lead to unfolding this thesis.My gratitude also goes to Dr.Gert-Jan Steeneveld from Wageningen University, Meteorology, and Air Quality Section. His expertise and support helped me to further my knowledge of the WRF model. I must also acknowledge Dr.Ronda Reinder from Wageningen Unversity for showing me the WRF software programming and diagnosis to adjust the urban fraction in the WRF model I have used throughout this Ph.D. I want to thank also Dr.Gemechu Fanta Garum from the University of Quebec, Canada, for his assistance in managing static data in the WRF model.My acknowledgment also goes to Dr.Eduardo Perez Molina, a colleague from the PGM department, for developing the land cover fraction of Kampala that I have used throughout this dissertation. I must also thank my co-author Dr. Luigi Lumbardo, for his expertise, insightful comments, and recommendations. I must also thank Dr.Bastian van der Bout for his support and experience sharing on the openLISEM model. My thanks also go to Dr. Harald van der Werff and Dr. Islam Fadel for their technical support on computational facilities. I would like to describe my sincere gratitude to also Professor Cees for editing my thesis.I would like to thank all members of the ESA department and colleagues for their help and support when needed. I always remember the warm discussions we had on social and other issues during tea break. A big thanks to all my wonderful friends and Ph.D. community at ITC, and it's always lovely to be in such an environment. Oscar, thanks for your friendship and also for your help with the Dutch summary. Hakan, Kartika, Yan, and Tunde, it was great to share the office with you guys. Especial thanks to all my current and former Ph.

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Analysis of the effect of impermeability of urban soils on the infiltration of rainwater in the city of Recife, PE

Cited by 6 publications

References 6 publications

Effects of rainwater intrusion on an activated sludge sewer treatment system

Effects of rainwater intrusion on an activated sludge sewer treatment system

Caracterização hidráulica das camadas de um pavimento permeável

Advances in flash flood modelling in urbanized and data scarce-areas

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