Low-cost adsorbents for urban stormwater pollution control

Deng, Yang

doi:10.1007/s11783-020-1262-9

Cited by 38 publications

(18 citation statements)

References 53 publications

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“…One approach to address this problem is to treat storm water with special adsorbent materials 86 , 87 before it enters the swales, or integrate additional adsorbent layers in the swales. However, these options are complex and expensive and, furthermore, a large portion of urban runoff often infiltrates diffusely and does not reach the swales at all.…”

Section: Resultsmentioning

confidence: 99%

Urban storm water infiltration systems are not reliable sinks for biocides: evidence from column experiments

Bork

Lange

Graf‐Rosenfellner

et al. 2021

Sci Rep

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Groundwater quality in urban catchments is endangered by the input of biocides, such as those used in facade paints to suppress algae and fungal growth and washed off by heavy rainfall. Their retention in storm water infiltration systems (SIS) depends, in addition to their molecular properties, on chemical properties and structure of the integrated soil layer. These soil properties change over time and thus possibly also the relevance of preferential flow paths, e.g. due to ongoing biological activity. To investigate the mobility of biocides in SIS, we analyzed the breakthrough of differently adsorbing tracers (bromide, uranine, sulforhodamine B) and commonly used biocides (diuron, terbutryn, octhilinone) in laboratory column experiments of undisturbed soil cores of SIS, covering ages from 3 to 18 years. Despite similar soil texture and chemical soil properties, retention of tracers and biocides differed distinctly between SIS. Tracer and biocide breakthrough ranged from 54% and 5%, to 96% and 54%, respectively. We related the reduced solute retention to preferential transport in macropores as could be confirmed by brilliant blue staining. Our results suggest an increasing risk of groundwater pollution with increasing number of macropores related to biological activity and the age of SIS.

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Section: Resultsmentioning

confidence: 99%

Urban storm water infiltration systems are not reliable sinks for biocides: evidence from column experiments

Bork

Lange

Graf‐Rosenfellner

et al. 2021

Sci Rep

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show abstract

“…Chloride retention quantification and release is significant in influencing the water quality of stormwater management ponds (SWMPs) (Lam et al 2020). Adsorbents at low cost can be considered as a viable option to treat urban stormwater (Deng 2020).…”

Section: Water Quality Aspectsmentioning

confidence: 99%

Urban stormwater management for sustainable and resilient measures and practices: a review

Rentachintala

Reddy

Mohapatra

2022

Water Science and Technology

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Stormwater drainage in urban areas have become a challenge due to the rapid and random growth of urban areas, removal of vegetation, reduction in the effectiveness of drainage infrastructure, climate change. Sustainable Urban Drainage Systems (SUDS), Low Impact Development (LID), Best Management Practices (BMP), Water Sensitive Urban Design (WSUD) and Sponge City Programme (SCP) are various aspects for urban stormwater management in a few parts of the world. Urban hydrology plays a vital role in the urban stormwater management system. However, optimal results can only be possible when the combined effect of climate change, land use patterns, reuse, treatment, ecology, and societal aspects are considered. There is a need to provide sustainable and resilient urban drainage systems to manage stormwater more efficiently. The present review has thoroughly discussed various features related to urban stormwater management, highlighted key drivers, identified knowledge gaps in each of the measures and/or practices, recommended future research needs of urban stormwater management to become sustainable and resilient. Integrated modelling approach considering various key drivers including reuse and real time governance enables stormwater management sustainable and resilient in urban environments.

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“…Rapid urbanization extends impervious surfaces such as roofs and roads (i.e., sealed soil) in urban areas (Morabito et al, 2021). This leads to higher runoff volume and peak runoff, which increases the urban flood risk and water quality degradation (Deng, 2020). Source control is an efficient solution to reduce urban runoff and pollutants (Ma et al, 2019;Choi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

The Role of Spatial Patterns of Low Impact Development in Urban Runoff Pollution Control Within Parcel Based Catchments

Zhao²

2022

Front. Environ. Sci.

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Landscape patterns significantly affect urban runoff pollution, and a reasonable arrangement of pervious patches in urban catchments is critical to control urban non-point-source pollution. Low impact development (LID) can be recognized as a pervious surface type, and many previous studies have analyzed the LID performance at a system scale. However, the influence of the LID spatial distribution on runoff pollutant transport at a catchment scale remains unclear. This study analyzed the influence of pervious/impervious patterns on runoff pollution within two urban catchments constructed with LID. It was found that the runoff pollution was influenced by the area ratio, circumference, shape, and pervious patch connectivity of pervious surfaces (i.e., LID). Catchments with high perviousness ratios are more efficient in reducing the runoff volume and suspended solids, and LID should focus on removing runoff pollutants at catchments with high imperviousness ratios. Six typical landscape metrics that represented the fragmentation, complexity and vergence of pervious surfaces were selected to investigate the influence of pervious/impervious patterns on runoff pollution. The results show that larger fragmentation, smaller complexity and smaller vergence of pervious patches result in larger runoff volumes and more pollutants. Therefore, it is recommended that large pervious areas should be retained and close to one another to enhance the retention capacity of LID, and the outline of pervious patches should be long and irregular to reduce pollution confluence. The results of this study are helpful in arranging LID structures for efficient runoff regulation and pollution control at an urban catchment scale.

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Low-cost adsorbents for urban stormwater pollution control

Cited by 38 publications

References 53 publications

Urban storm water infiltration systems are not reliable sinks for biocides: evidence from column experiments

Urban storm water infiltration systems are not reliable sinks for biocides: evidence from column experiments

Urban stormwater management for sustainable and resilient measures and practices: a review

The Role of Spatial Patterns of Low Impact Development in Urban Runoff Pollution Control Within Parcel Based Catchments

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