Low Impact Development Technology: Implementation and Economics

2015 ◽  
Keyword(s):  
Technology Implementation ◽  
Low Impact Development ◽  
Development Technology

Bioretention cell efficacy in cold climates: Part 1 — hydrologic performance

2012 ◽  
Vol 39 (11) ◽  
pp. 1210-1221 ◽  
Author(s):  
U.T. Khan ◽  
C. Valeo ◽  
A. Chu ◽  
B. van Duin
Keyword(s):  
Field Experiments ◽  
Peak Flow ◽  
Low Impact Development ◽  
High Volume ◽  
Simulation Experiments ◽  
Flow Rates ◽  
Development Technology ◽  
Cold Condition ◽  
Urban Stormwater Runoff

Bioretention cells are an emerging low impact development technology that address urban stormwater runoff concerns. Field and column experiments were conducted to assess the efficacy of bioretention cells in cold conditions. Field experiments in a prairie environment demonstrated a significant decrease (91.5%) in effluent volumes compared to influent volumes. The majority (∼60%) of the runoff percolated to the surrounding soils or evapotranspirated. Cold condition performance significantly impacted high volume events and was characterized by significantly higher effluent volumes, significantly lower runoff storage, higher effluent peak flow rates, and longer peak delays. A partially frozen surface layer caused the changes in performance. Long-term simulation experiments on the columns indicated a significant decrease in saturated hydraulic conductivity over the first 4 equivalent years of operation, before levelling to a constant value.

Discussion of application of low impact development technology in the construction of sponge city in China

2020 ◽  
Vol 188 ◽  
pp. 297-302
Author(s):  
Wei Huang ◽  
Wen Lin ◽  
Lei Huang ◽  
Hong Weng ◽  
Ping Huang ◽  
...  
Keyword(s):  
Low Impact Development ◽  
Sponge City ◽  
Development Technology

Assessment of suspended solid and particles removal efficiency for hybrid systems connecting a technical BMP device to low impact development technology

2020 ◽  
Vol 200 ◽  
pp. 400-406
Author(s):  
Sung Min Cha ◽  
Taeyoon Kim ◽  
Sunghoon Hong ◽  
Hyun Suk Shin ◽  
Jong Bin Park ◽  
...  
Keyword(s):  
Hybrid Systems ◽  
Removal Efficiency ◽  
Low Impact Development ◽  
Suspended Solid ◽  
Development Technology

scholarly journals Influence of filter layer positions and hydraulic retention time on removal of nitrogen and phosphorus by porous asphalt pavement

2020 ◽  
Vol 81 (3) ◽  
pp. 445-455 ◽  
Author(s):  
Hui Luo ◽  
Lin Guan ◽  
Zhaoqian Jing ◽  
Zeyu Zhang ◽  
Xiaobo Hu ◽  
...  
Keyword(s):  
Retention Time ◽  
Surface Runoff ◽  
Asphalt Pavement ◽  
Low Impact Development ◽  
Critical Parameters ◽  
Nitrogen And Phosphorus ◽  
Porous Asphalt ◽  
Development Technology ◽  
Removal Processes ◽  
Filter Layer

Abstract This study was aimed to investigate the removal processes of nitrogen (TN), NH4+-N and phosphorus (TP) from surface runoff by performing experiments on the filter layers in porous asphalt pavement (PAP). Experiments were conducted to compare the differences of the filter layer placed at the top, the middle or the bottom of PAP. The effects of retention time on the removal of the pollutants and the adsorption capacity of PAP materials were also investigated. Results indicated that the filter layer placed under the bed course improved the removal rates of pollutants compared to the other two cases on the whole. The concentration of TP in the effluent decreased by 80% after the 48 h retention time. In conclusion, this study demonstrated that the positions of filter layers and the temporary retention time of surface runoff within the bed course of PAP were critical parameters for determining the removal processes of pollutants. Thus, a certain retention time for surface runoff in bed course is of great importance for PAP to serve as an effective low impact development technology for stormwater management.

scholarly journals A Need for Standardized Reporting: A Scoping Review of Bioretention Research 2000–2019

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3122
Author(s):  
Sylvie Spraakman ◽  
Timothy F. M. Rodgers ◽  
Haruna Monri-Fung ◽  
Amanda Nowicki ◽  
Miriam L. Diamond ◽  
...  
Keyword(s):  
Scoping Review ◽  
Low Impact Development ◽  
Field Research ◽  
Field Performance ◽  
Original Data ◽  
The United States ◽  
Hydrologic Controls ◽  
Development Technology ◽  
Modelling Studies ◽  
Standardized Reporting

Bioretention cells are a type of low-impact development technology that, over the past two decades, have become a critical component of urban stormwater management. Research into bioretention has since proliferated, with disparate aims, intents and metrics used to assess the “performance” of bioretention cells. We conducted a comprehensive, systematic scoping review to answer the question of “How is the field performance of bioretention assessed in the literature?”, with the aim of understanding (1) how is the performance of bioretention defined in the literature? (2) what metrics are used to assess actual and theoretical performance? A review of 320 studies (mostly peer reviewed articles) found that performance was defined in terms of hydrologic controls, while investigations into water quality pathways and mechanisms of contaminant transport and fate and the role of vegetation were lacking; additionally, long term field and continuous modelling studies were limited. Bioretention field research was primarily conducted by a small number of institutions (26 institutions were responsible for 50% of the research) located mainly in high income countries, particularly Australia and the United States. We recommend that the research community (I) provide all original data when reporting results, (II) prioritize investigating the processes that determine bioretention performance and (III) standardize the collection, analysis and reporting of results. This dissemination of information will ensure that gaps in bioretention knowledge can be found and allow for improvements to the performance of bioretention cells around the world.

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