Characteristic and pattern of urban water cycle: theory

Abstract

a b s t r a c tUrban water cycle is one of the foremost contemporary research topics in hydrological research, and it forms the foundation of urban water resources management. This study serves to provide better analysis and understanding of the changes in urban water cycle such as number of factors, complexity of processes, magnitude of impact, etc. It serves to sum up the integration of nature and anthropogenic water cycle, in the form of a bi-modal urban water cycle model. The work focuses on the difference and compatibility of scales and methodology in urban hydrological processes, in order to highlight the gaps in urban water cycle research. This includes developing a unique model to simulate the characteristics and evolution of processes in urban areas, with the intention of supporting future urban water resources management.

Performance of Sewage Treatment Technologies for the Removal of Cryptosporidium Sp. And Giardia Sp.: Toward Water Circularity

“…Subsequently, the secondary treatment reduces organic matter through biological processes and the tertiary treatment, in most cases, consists of the disinfection of the influent (WHO, 2015, Vera et al, 2013. The treated effluent is generally discharged to surface ecosystems such as rivers, lakes, and lagoons (Wei et al, 2018). In addition, a sludge stream is generated as a by-product that must be stabilized and sanitized (Vera et al, 2013, Cartes et al, 2018.…”

Calculating the water dissipation of buildings in urban areas based on global nighttime light data

“…Since the urban population has grown rapidly in recent years, many studies have focused on water resource consumption 1 and urban drainage systems 2 by analyzing urban water cycle systems 3 and the impacts of urban expansion on water security 4 . The urban water cycle is one of the foremost contemporary research themes and provides the foundation for urban water resource management 5 . Cities are typical natural-social dualistic water cycle areas 6 and consist of a natural water cycle with the principal process of "precipitation-in ltration-evapotranspiration-runoff" and the social water cycle with the process of "supply-consumption-dissipation-discharge" 5-7−8 .…”

Using nighttime light data to estimate water evaporation inside buildings in China's urban areas

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The urban water cycle is one of the most significant research topics in hydrology and provides the foundation for urban water resource management (Wei et al, 2018). The process of urban water cycle can be generalized as "supply-consumption-dissipation-drainage-recyclingreuse".

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