scholarly journals Characterizing the Stormwater Runoff Quality and Evaluating the Performance of Curbside Infiltration Systems to Improve Stormwater Quality of an Urban Catchment

Water ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 14
Author(s):  
Hussain Shahzad ◽  
Baden Myers ◽  
Guna Hewa ◽  
Tim Johnson ◽  
John Boland ◽  
...  
Keyword(s):  
Stormwater Runoff ◽  
Pollutant Concentration ◽  
Mitigation Measures ◽  
Stormwater Quality ◽  
Urban Catchment ◽  
Impervious Area ◽  
Storage Volume ◽  
Level Of Aggregation ◽  
Runoff Discharge

The conveyance of stormwater has become a major concern for urban planners, considering its harmful effects for receiving water bodies, potentially disturbing their ecosystem. Therefore, it is important to characterize the quality of catchment outflows. This information can assist in planning for appropriate mitigation measures to reduce stormwater runoff discharge from the catchment. To achieve this aim, the article reports the field data from a typical urban catchment in Australia. The pollutant concentration from laboratory testing is then compared against national and international reported values. In addition, a stochastic catchment model was prepared using MUSIC. The study in particular reported on the techniques to model distributed curbside leaky wells with appropriate level of aggregation. The model informed regarding the efficacy of distributed curbside leaky well systems to improve the stormwater quality. The results indicated that catchment generated pollutant load, which is typical of Australian residential catchments. The use of distributed storages only marginally improves the quality of catchment outflows. It is because ability of distributed leaky wells depended on the intercepted runoff volume which is dependent on the hydrological storage volume of each device. Therefore, limited storage volume of current systems resulted in higher contributing area to storage ratio. This manifested in marginal intercepted volume, thereby only minimum reduction in pollutant transport from the catchment to outlet. Considering strong correlation between contributing impervious area and runoff pollutant generation, the study raised the concern that in lieu of following the policy of infill development, there can be potential increase in pollutant concentration in runoff outflows from Australian residential catchments. It is recommended to monitor stormwater quality from more residential catchments in their present conditions. This will assist in informed decision-making regarding adopting mitigations measures before considering developments.

Best management practices for stormwater-runoff with alternative methods in a large urban catchment in Berlin, Germany

1998 ◽  
Vol 38 (10) ◽  
pp. 91-97 ◽  
Author(s):  
H. Sieker ◽  
M. Klein
Keyword(s):  
Best Management Practices ◽  
Urban Areas ◽  
Management Practices ◽  
Stormwater Runoff ◽  
Settling Tank ◽  
Alternative Methods ◽  
Stormwater Treatment ◽  
Urban Catchment ◽  
Best Management ◽  
Impervious Area

Because of multiple constraints, e.g. existing drainage systems, little available space and higher costs, Best Management Practices (BMP) for stormwater-runoff in existing urban areas is more difficult to apply than for new urban developments. For a large urban catchment (about 22 km2) with a separate drainage system in Berlin, Germany a combination of decentral (non-structural) and semi-central stormwater-management measures proved to be the best solution. It offers a high effectiveness concerning stormwater treatment at relatively low costs. Modern planning tools such as Geographic Information Systems (GIS) were used to investigate the possibilities of implementing decentral measures in larger areas. Correlations between field surveys and data from the ‘Environmental Information System’ of Berlin shows that even in highly urbanised areas a disconnection of 30% of the impervious area can easily be achieved. The resulting reduction of the discharge makes it possible to convert existing retention tanks to soil filter tanks. The purification efficiency of this combined measures is higher than of a central stormwater settling tank which has been simulated with a pollution load model.

First flush effects in an urban catchment area in Aalborg

1998 ◽  
Vol 37 (1) ◽  
pp. 251-257 ◽  
Author(s):  
Torben Larsen ◽  
Kirsten Broch ◽  
Margit Riis Andersen
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Quality Parameters ◽  
Average Concentration ◽  
First Flush ◽  
Storm Events ◽  
Urban Catchment ◽  
Discharge Measurements ◽  
Quality Measurements

The paper describes the results of measurements from a 2 year period on a 95 hectare urban catchment in Aalborg, Denmark. The results of the rain/discharge measurements include 160 storm events corresponding to an accumulated rain depth of totally 753 mm. The water quality measurements include 15 events with time series of concentration of SS, COD, BOD, total nitrogen and total phosphorus. The quality parameters showed significant first flush effects. The paper discusses whether either the event average concentration or the accumulated event mass is the most appropriate way to characterize the quality of the outflow.

scholarly journals Analysis of the Behavior of Abstractions in Two Urban Micro-Basins of the City of Cuenca (Ecuador), through an Aggregate Model

2021 ◽  
Vol 13 (6) ◽  
pp. 3209
Author(s):  
Ricardo Rubio-Ramírez ◽  
Rubén Jerves-Cobo ◽  
Diego Mora-Serrano
Keyword(s):  
Stormwater Runoff ◽  
Great Sensitivity ◽  
Aggregate Model ◽  
Antecedent Soil Moisture ◽  
Maximum Rainfall ◽  
Rainfall Events ◽  
Impervious Area ◽  
Process Of Urbanization ◽  
Negative Impacts ◽  
The City

Several cities in developing countries are challenging the permanent process of urbanization. This generates a great disturbance on the hydrological response of the urbanized area during rainfall events, which can cause floods. Among the disturbances that urbanized basins may suffer, it is found that variations in rain losses (hydrological abstractions) can be estimated by the named volumetric runoff coefficient (CVOL) methodology. In the present study, this methodology is used in an attempt to estimate the hydrological abstraction of two nearby urbanized basins, with different degrees of impermeability, located in the city of Cuenca in Ecuador. The data for that analysis were collected between April and May of 2017. The results obtained indicate that the micro-basin with the largest impervious area presents the higher initial hydrological losses, the higher rate of decrease in abstractions, and the higher stormwater runoff flows per unit area. In addition, the abstractions found in the two urban micro-basins show great sensitivity to the maximum rainfall intensity and do not relate to the antecedent soil moisture. These results demonstrate the importance of having higher pervious surfaces in urbanized areas because they lead to reduce negative impacts associated with increased stormwater runoff on impervious surfaces.

scholarly journals The Importance of Environmental Factors in the Planning of Container Terminals: The Case Study of the Port of Augusta

2021 ◽  
Vol 11 (5) ◽  
pp. 2153
Author(s):  
Nadia Giuffrida ◽  
Maja Stojaković ◽  
Elen Twrdy ◽  
Matteo Ignaccolo
Keyword(s):  
Environmental Impact ◽  
Container Terminal ◽  
Decision Support Tool ◽  
Container Terminals ◽  
Mitigation Measures ◽  
Support Tool ◽  
Clean Environment ◽  
Different Levels

Container terminals are the main hubs of the global supply chain but, conversely, they play an important role in energy consumption, environmental pollution and even climate change due to carbon emissions. Assessing the environmental impact of this type of port terminal and choosing appropriate mitigation measures is essential to pursue the goals related to a clean environment and ensuring a good quality of life of the inhabitants of port cities. In this paper the authors present a Terminal Decision Support Tool (TDST) for the development of a container terminal that considers both operation efficiency and environmental impacts. The TDST provides environmental impact mitigation measures based on different levels of evolution of the port’s container traffic. An application of the TDST is conducted on the Port of Augusta (Italy), a port that is planning infrastructural interventions in coming years in order to gain a new role as a reference point for container traffic in the Mediterranean.

Hydraulic Performance and Pollutant Concentration Profile in a Stormwater Runoff Filtration Systems

2015 ◽  
Vol 227 (1) ◽  
Author(s):  
Tadele Measho Haile ◽  
Gerhard Hobiger ◽  
Gerhard Kammerer ◽  
Roza Allabashi ◽  
Birgit Schaerfinger ◽  
...  
Keyword(s):  
Concentration Profile ◽  
Stormwater Runoff ◽  
Hydraulic Performance ◽  
Pollutant Concentration

Green infrastructure optimization to achieve pre-development conditions of a semiarid urban catchment

2019 ◽  
Vol 5 (6) ◽  
pp. 1157-1171 ◽  
Author(s):  
Hessam E. Tavakol-Davani ◽  
Hassan Tavakol-Davani ◽  
Steven J. Burian ◽  
Brian J. McPherson ◽  
Michael E. Barber
Keyword(s):  
Green Infrastructure ◽  
Stormwater Runoff ◽  
Environmental Benefits ◽  
Design Approach ◽  
Urban Catchment ◽  
Runoff Reduction ◽  
Infrastructure Design

The introduced hydrologically comprehensive green infrastructure design approach exceeds conventional stormwater runoff reduction goals in terms of common environmental benefits.

FIFTEEN YEARS OF ENVIRONMENTAL IMPACT ASSESSMENT SYSTEM IN BANGLADESH: CURRENT PRACTICE, CHALLENGES AND FUTURE DIRECTIONS

2013 ◽  
Vol 15 (04) ◽  
pp. 1350018 ◽  
Author(s):  
S. M. ZOBAIDUL KABIR ◽  
SALIM MOMTAZ
Keyword(s):  
Environmental Impact ◽  
Current Practice ◽  
Good Practice ◽  
Scientific Information ◽  
Institutional Arrangement ◽  
Assessment System ◽  
Mitigation Measures ◽  
Future Directions ◽  
Full Benefit

The aim of this article is to review the current practice of EIA system in Bangladesh. In Bangladesh, EIA has been practiced for more than fifteen years. However, there is a lack of scientific information about the current practice of EIA in Bangladesh. This article focused and reviewed three key areas of EIA system in Bangladesh: institutional arrangement, quality of EISs and implementation of mitigation measures. By using a set of good practice criteria, this article finds that still there are shortcomings in current EIA practice despite that fact that EIA practice in Bangladesh has been improving over the last fifteen years. This means Bangladesh could not harness the full benefit of EIA yet. This article suggest that in order to harness the full benefits of EIA, adequate implementation of mitigation measures is imperative while improving the capacity of proponents, regulatory agency and the quality of EIS.

Characterization of Stormwater Runoff from North Carolina Bridges and Determination of Effects on Selected Receiving Waters

2012 ◽  
Vol 2309 (1) ◽  
pp. 178-199 ◽  
Author(s):  
Chad Wagner ◽  
Sharon Fitzgerald ◽  
Matthew Lauffer
Keyword(s):  
North Carolina ◽  
Bridge Deck ◽  
Major Ions ◽  
Stream Water ◽  
Stormwater Runoff ◽  
Base Flow ◽  
Bed Sediment ◽  
Wide Range ◽  
Receiving Waters

The North Carolina Department of Transportation and the U.S. Geological Survey collaborated on a study to better understand the effects of stormwater runoff from bridges on receiving waters. The following tasks were performed: (a) characterizing the quality and quantity of stormwater runoff from a representative selection of bridges in North Carolina, (b) measuring the quality of stream water upstream of selected bridges to compare constituent concentrations and loads in bridge deck stormwater with those in the stream, (c) determining whether the chemistry of bed sediment upstream and downstream of selected bridges differed substantially according to the presence or absence of a best management practice for bridge runoff, and (d) estimating the rate at which bridge deck runoff mixed with the receiving stream. The investigation measured bridge deck runoff from 15 bridges for 12 to 15 storms, the quality of stream water for base flow and storm conditions at four of the bridge deck sites, and the chemistry of stream bed sediment upstream and downstream of 30 bridges across North Carolina. Runoff and stream samples were analyzed for a wide range of constituents, including dissolved and total recoverable metals and nutrients, major ions, total suspended solids, suspended sediment, oil and grease, petroleum hydrocarbons, and semi-volatile organic compounds. For 64% of comparisons, concentrations in bridge deck runoff were no different or were less than those measured in receiving waters, and the maximum concentrations of constituents in the bridge deck runoff were rapidly reduced to the ambient stream concentrations, generally within 50 ft downstream of the bridge.

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