Abstract Numerical models are currently the main tool used to simulate effects of urban flooding. The validation these requires thorough and accurate observed data in order test their performance. current study presents a series laboratory experiments large‐scale drainage physical facility approximately 100 m 2 that includes roofs, streets, inlets, manholes sewers. is equipped with rainfall simulator as well surface runoff pipe inflows generators. were divided two sets. In Set 1 was...

Sustainable urban drainage systems (SUDS) were almost unknown in Spain two decades ago; today, the country is transitioning towards a more sustainable and regenerative management global context where green policies are gaining prominence. This research establishes diagnosis of SUDS examines extent to which moving new paradigm three dimensions: (a) governance social perception community, (b) regulative background, (c) implementation technical performance SUDS. The identifies barriers that...

Sustainable urban drainage systems (SUDS) are common solution to address flow discharges, runoff volumes and pollutant concentrations caused by expansion climate change trend.Among them, permeable pavements (PP) effectively manage treat stormwater.The clogging process of PP has been addressed in previous studies but there is still room for improvement the knowledge about how it affects their performance terms hydrological behaviour removal depends on sediment properties.The present study...

ABSTRACT This study investigates the long-term behaviour of porous asphalt (PA) that retrofitted a 36 m2 laboratory full-scale street section, focusing on filtration and clogging processes. Throughout 11 experiments with increasing accumulative sediment loads up to 5.5 kg/m2, evolution surface permeability, water levels inside asphalt, flows, turbidity, total suspended solid (TSS) concentrations were analysed. Sediment loads, representing dry-weather build-up, applied surface, followed by...

Urban drainage systems (UDS) are critical man-made infrastructures that directly interface with natural aquatic and control convey wastewater stormwater to both centralised distributed facilities where they can be safely treated, reused whenever possible, or returned the environment. UDS crucial for protecting public health by limiting contact between people pathogens, managing stormwater, reducing pollutants’ impact urban flooding risks. However, settlements around world face...

Abstract This paper presents a dataset obtained from hydraulic and sediment transport experiments performed in full-scale urban drainage physical model of 36 m 2 . The study seeks to accurately measure mobilization through the different parts (surface, gully pots pipe system), also obtaining precise characterization water flow using realistic rainfall simulator ensure transferability results. Three rain intensities five granulometries were tested 6 23 wash-off experiments. following...

Abstract. Although surface velocities are key in the calibration of physically based urban drainage models, shallow water depths developed during non-extreme precipitation and potential risks flood events limit availability this type data catchments. In context, imaging velocimetry techniques being investigated as suitable non-intrusive methods to estimate runoff velocities, when possible influence rain has yet be analyzed. This study carried out a comparative assessment different seeded...

Drinking water provision has been a constant challenge in the Sahrawi refugee camps, located desert near Tindouf (Algeria). The drinking supply system is itself divided three zones which pump groundwater from different deep aquifers. It equipped with reverse osmosis plants and chlorination systems for treating water. allocation of supplied to Saharawi refugees human consumption 2016 estimated at between 14 17 L/person/day on average. This volume below recommended standards, also strategic...

An innovative technique based on temperature measurements promises to better understand and manage sediments in urban drainage systems.

A Computational Fluid Dynamics (CFD) model was developed to analyze the open-channel flow in a new set of egg-shaped pipes for small combined sewer systems. The cross-section selected after studying several geometries under different conditions. Once defined, real-scale physical built and series partial-full experiments were performed order validate numerical simulations. Furthermore, velocity distributions compared with an experimental formulation analytic geometries, comparison results...

This article presents the methodology and results of field survey carried out to characterise pollution associated with stormwater runoff from an urban catchment in Galicia (Spain). Various instruments were installed control section this measuring some 55 ha located separate sewer system outlet, obtain samples events. In particular, precipitation flow recorded, addition such flows. On basis information it was possible determine a series parameters (solids, BOD5, COD, TOC) most important...

Rainfall simulators are useful tools for controlling the main variables that govern natural rainfall. In this study, a new drop-forming rainfall simulator, which consists of pressure-compensating dripper grids above horizontal mesh breaks and distributes raindrops, was developed to be applied in wash-off experiments large-scale physical model 36 m2. The typology size, its distance drippers, were established through calibration where rain uniformity distributions raindrop sizes velocities...

Understanding sediment wash-off in urban environments plays an essential role transport management; and is critical for accurate pluvial flood control to assist adaptation mitigation strategies. Sediment models have been researched previously, though challenges still arise due the complicated nature of graded transport. This study tested accuracy van Rijn model using a sparse distribution particle sizes geometric mean. As such, this used high-resolution datasets collected water laboratory...

This research is focused in the monitoring of sediments circular sewer pipes with different diameters at a flume facility fed urban wastewater. For this purpose, sediment physical and chemical characteristics, mobility were recorded. The Structure from Motion photogrammetric technique was used for measurement bed evolution. In addition, properties determined order to study cohesiveness deposits. particular, oxygen demand uptake rate samples analysed after accumulation periods on pipe...

Wastewater production, like many other engineered and environmental processes, is inherent stochastic in nature requires the use of complex models, for example, to predict realistic patterns down-the-drain chemicals or pharmaceuticals personal care products. Up until now, a formal method statistical inference has been lacking those where explicit likelihood functions were intractable. In this Article, we investigate Approximate Bayesian Computation (ABC) methods infer important parameters...

A series of experiments were carried out with real wastewater in a pilot flume located at Coruña treatment plant (WWTP) (Spain). full scale model was developed to test circular (300 mm inner diameter) and an equivalent area egg-shaped plastic pipe under controlled experimental conditions (pipe slope 2-5‰, averaged discharge Q = 4 L/s). Velocity profiles sediment accumulation the invert daily measured. Within 7-11 days, average rate found between 1.4 3.8 mm/d. The height depended on input...

<p class="Resumen">Este trabajo presenta un integrado de modelización los impactos por oxígeno disuelto y amonio producidos DSU del sistema saneamiento Lugo sobre el río Miño. La la red se ha realizado con programa SWMM. Para impacto Miño empleado Iber. Los han evaluado empleando estándares emisión (frecuencia volumen DSU), calidad ambiental recogidos en Urban Pollution Management. principales resultados estudio indican que tramo estudiado no es adecuado para vida salmónidos términos...

This study analyses the mobilization of total suspended solids (TSS) for different spatial distributions sediment load located over roadway surface a full-scale street section physical model. At sewer network outlet, flow discharges were measured and TSS pollutographs determined with manual grab samples inferred from turbidity records. In all tests, rain duration was 5 min its averaged intensity 101 mm/h. addition, that not washed off at end experiments collected surface, gully pots pipes...