Review
Environmental Sciences
Hongwei Zhang, Zulfiqar Ahmad, Yalu Shao, Zhonghua Yang, Yufei Jia, Hua Zhong
Summary: Bioretention plays a crucial role in reducing runoff pollutants, but the efficiency of nitrogen removal in these systems is unstable due to various factors. The review article summarizes recent advances in bioretention systems for nitrogen removal and discusses the operational conditions affecting nitrogen removal efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Tariq Mehmood, Jie Lu, Cheng Liu, Gajendra Kumar Gaurav
Summary: The study found that Cu accumulation significantly affects organic removal and microbial performance in bioretention systems, but mixed media can mitigate these impacts to some extent.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Jing Li, Junqi Li, Zimu Li, Xiaojing Li, Shuai Si
Summary: Ground hardening in urban areas increases the risk of thermal enrichment in surface rainwater runoff. However, through low-impact development (LID) and renovation, the thermal load of surface runoff in urban areas can be significantly reduced, with ceramic granules as bioretention fillers showing remarkable results in decreasing thermal pollution and protecting the urban aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Mehrdad Mohtadi, Bruce R. James, Gregory R. Krasnoff, Allen P. Davis
Summary: Conventional bioretention systems are not effective in removing stormwater dissolved organic nitrogen. Adsorption is found to be a greater controlling factor for ammonification than bioavailability. This study shows enhancements in ammonification rate, ammonification of bio-recalcitrant organic nitrogenous compounds, and bio-regeneration of the adsorbent. Factors such as temperature and bed media height also impact the ammonification process.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Engineering, Environmental
Yang Ran, Zheng-rong Fu, Man-ying Ma, Xian Liu
Summary: The study enhanced the nitrogen and phosphorus removal effect in traditional bioretention systems by adding new composite fillers, with the optimal ratio identified. By introducing saturated zones and optimizing media depth, efficient removal of total phosphorus, NO3--N, and TN was achieved.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Yifeng Qin, Mingshen Chen, Shuchang Liu, Yunqing Fang, Xudong Li, Jiangpin Qiu
Summary: Natural zeolite provides good adsorption capacity for cation pollutants and heavy metals, but limited ability to remove anion pollutants. Hexadecyltrimethylammonium bromide (HDTMA)-modified zeolite significantly improves the removal rate of nitrate nitrogen (NO3 (-)-N) and total phosphorus (TP) and slightly increases the purification performance of ammonium nitrogen (NH4 (+)-N) of the substrate. However, the media with modified zeolite shows a decline in both runoff volume reduction and flow rate reduction compared to the media with natural zeolite.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Review
Biotechnology & Applied Microbiology
Basanta Kumar Biswal, Kuppusamy Vijayaraghavan, Max Gerrit Adam, Daryl Lee Tsen-Tieng, Allen P. Davis, Rajasekhar Balasubramanian
Summary: Bioretention systems are effective low-impact development technologies that can manage high runoff volumes and reduce nitrogen pollutants through various mechanisms. Denitrification is the major pathway of permanent nitrogen removal and factors like multilayer biofilter media and wet storm events can significantly improve nitrogen removal efficiency.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Henry Beral, Danielle Dagenais, Jacques Brisson, Margit Koiv-Vainik
Summary: Bioretention systems are important green infrastructures for managing urban stormwater runoff. This study compared the performance of four plant species in bioretention effectiveness during different growing periods and found that plant species selection is crucial for improving water quality and reducing runoff volume.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Hui Fang, Behzad Jamali, Ana Deletic, Kefeng Zhang
Summary: The study used machine learning methods to predict the performance of biofilters, with random forest model performing relatively better during training but less accurate during validation. The design and operational factors of biofilters play an important role in the removal of heavy metals.
Article
Engineering, Environmental
Sheng Wang, Lidan Feng, Yezi Yuan
Summary: Stormwater source controls have been adopted worldwide to address hydrological and environmental impairments caused by the spread of impervious surfaces in cities. This study proposes a closed-loop analysis method that uses simulated results to check the effectiveness of design solutions and make improvements if necessary. Case study results validate the feasibility of this method and provide corresponding findings.
Article
Plant Sciences
Kirstine Laukli, Hilde Vinje, Trond Knapp Haraldsen, Eva Vike
Summary: Plant selection for rain gardens along streets and roads in cold climates is complex, as different species and cultivars have varying levels of adaptation. Some candidate plants performed well in all positions, while others only adapted to certain parts or had medium tolerance. However, there were also plants that showed poor growth in all positions. Therefore, when designing roadside rain gardens in cold climates, the adaptability of plants should be considered.
URBAN FORESTRY & URBAN GREENING
(2022)
Article
Environmental Sciences
C. Caldelas, R. Guri, J. L. Araus, A. Sorolla
Summary: Stormwater runoff from urban and suburban areas may carry hazardous pollutants like metals and pharmaceuticals into aquatic ecosystems. The presence of zinc oxide engineered nanoparticles (ZnO-NPs) in urban stormwater and bioretention systems raises concerns about increased stormwater toxicity and reduced treatment infrastructure performance. Additional research evaluating the impact of ZnO-NPs on stormwater toxicity and metal accumulation in wetland plants was also conducted.
Article
Plant Sciences
Kirstine Laukli, Marina Gamborg, Trond Knapp Haraldsen, Eva Vike
Summary: This study evaluates the performance of soil mixtures and herbaceous perennials for use in rain gardens through a container experiment and a real-scale study. The results highlight significant differences in species' adaptation to roadside rain gardens in cold climates.
URBAN FORESTRY & URBAN GREENING
(2022)
Article
Engineering, Environmental
Jiayi Li, Teresa B. Culver, Padmini P. Persaud, Jon M. Hathaway
Summary: This study developed nitrogen removal models with different numbers of nitrogen pools, and found that the 0-order kinetics model is not suitable for simulating nitrogen removal in bioretention systems, while the 1st order kinetics and Michaelis-Menten equation models perform well. The best model can accurately predict nitrogen event mean concentrations in bioretention systems and outperforms the SWMM by predicting 20% more events.
Article
Green & Sustainable Science & Technology
Zhaoying Liu, Liyuan Wu, Yang Hao, Yu Cheng, Chaohong Tan, Jia Wang, Haiyan Li
Summary: A novel heterotrophic-autotrophic sequential bioretention system was constructed, achieving efficient removal of nitrate nitrogen and organic matter by packing waste reeds and sulfur in a sequential manner.
JOURNAL OF CLEANER PRODUCTION
(2023)