Review
Environmental Sciences
Hong Li, Qingmei Liu
Summary: Heavy metal pollution in groundwater has a significant impact on human health, and permeable reactive barrier (PRB) is an efficient and cost-effective in-situ remediation technology for removing various heavy metal contaminants. This paper classifies reaction materials into three categories and analyzes the mechanism of different materials in removing heavy metal pollutants. The screening method for reaction mediums is summarized. Finally, the deficiencies and development directions of PRB reaction medium materials in removing heavy metals in groundwater are pointed out.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Environmental
Fengyi Zhu, Xuefei Tan, Weixin Zhao, Likui Feng, Shufei He, Liangliang Wei, Lin Yang, Kun Wang, Qingliang Zhao
Summary: The study demonstrated that using zero valent iron-based composites as fillers for permeable reactive barriers can effectively remove metal ions such as Cu(II), Co(II), Cr(VI) and As(III), showing potential application value. The composites exhibited different selectivity values in different metal systems, and also showed dynamic removal improvement for multiple metals.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Geochemistry & Geophysics
Alena Fedorockova, Pavel Raschman, Gabriel Sucik, Maria Svandova, Agnesa Dorakova
Summary: A laboratory method was designed and verified for testing alkaline, magnesite-based reactive materials in the removal of heavy metals from contaminated groundwater. Caustic calcined magnesia (CCM) showed high reactivity and low solubility in removing Cu2+, Zn2+, Ni2+, and Mn2+ cations from mixed aqueous solutions. The optimal condition for CCM preparation was found to be calcination at 750 degrees C for 3 hours, achieving full heavy metal removal with lower energy consumption.
Review
Environmental Sciences
Stefania Bilardi, Paolo Salvatore Calabro, Nicola Moraci
Summary: This paper provides an overview of the long-term hydraulic behavior of PRBs composed of ZVI mixed with other reactive or inert materials. It analyzes the factors influencing their performance and suggests a procedure for their correct hydraulic design. It also highlights the need for developing numerical models to couple PRBs' hydraulic and reactive behaviors.
Review
Green & Sustainable Science & Technology
Jiangmin Song, Guanxing Huang, Dongya Han, Qinxuan Hou, Lin Gan, Meng Zhang
Summary: This review article summarizes recent findings on the use of reactive media in PRBs for the removal of heavy metal(loids) from groundwater. It classifies reactive media into three categories: emerging single material, mixed materials, and core-shell materials, and discusses the primary mechanisms and factors influencing their reaction with heavy metal(loids).
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Kaixuan Zheng, Xingshen Luo, Yiqi Tan, Zhonglei Li, Hongtao Wang, Tan Chen, Li Zhao, Liangtong Zhan
Summary: A novel permeable reactive barrier (PRB) configuration, called passive convergence-permeable reactive barrier (PC-PRB), is proposed to overcome the shortcomings of traditional PRB configurations. The study shows that PC-PRB has better hydraulic performance than the continuous reactive barrier (C-PRB), reducing the geometric dimensions and material costs required for treating the same plume. The sensitivity analysis identifies the key factors influencing the hydraulic performance of PC-PRB. Therefore, PC-PRB is an effective PRB configuration.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Engineering, Environmental
Chiquan He, Anni Hu, Feifei Wang, Pu Zhang, Zhenzhen Zhao, Yanping Zhao, Xiaoyan Liu
Summary: The study investigated the remediation of heavy metal contaminated soils using a new sheet PRB material, as well as the impact of citric acid and Shewanella oneidensis pretreatment on the removal efficiency of zinc and cadmium. The results showed that the CA + MR-1 group exhibited the highest removal efficiency and adsorption capacity for Zn(II) and Cd(II) during EK-PRB treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Xuhao Zhang, Xiao Zhang, Xianghui Li, Yanshun Liu, Hao Yu, Minghui Ma
Summary: In this study, porous geopolymers (PGPs) with controllable pore structures were successfully fabricated using the proposed foaming-liquid film balance control method. The results showed that interconnected pores can enhance the migration of solute and improve the long-term removal efficiency. PGP-PRBs demonstrated excellent performance for the removal of heavy metals, indicating their potential application in groundwater decontamination.
Article
Engineering, Environmental
Shui-Wen Chang Chien, Yi-Pei Li, Cheng-Chung Liu
Summary: The permeable reactive barrier constructed with wine-processing waste sludge effectively prevented the dispersal of some toxic metals in a simulated aquifer, but was less effective in blocking the diffusion of other metals.
WATER SCIENCE AND TECHNOLOGY
(2021)
Review
Environmental Sciences
Luzi Yuan, Kun Wang, Qingliang Zhao, Lin Yang, Guangzhi Wang, Miao Jiang, Lili Li
Summary: Groundwater, an important component of water resources, can be contaminated by the mixed pollutants comprising heavy metals and petroleum hydrocarbons from industrial activities. This study discussed the application of bioremediation and permeable reactive barriers (PRBs) for in situ remediation of complex contaminated groundwater, highlighting the media types, technology combinations, and factors for the PRBs. Insights and outlooks were presented for the in situ remediation of complex groundwater contaminated with heavy metals and petroleum hydrocarbons.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Review
Environmental Sciences
Ravindra Budania, Sanyam Dangayach
Summary: Groundwater quality is deteriorating due to contamination from both natural and anthropogenic sources. Permeable reactive barriers (PRBs) offer a more sustainable strategy for remediation compared to traditional Pump and Treat techniques. This promising technique focuses on eliminating heavy metal pollutants and hazardous aromatic compounds by various methods such as physisorption, chemisorption, precipitation, denitrification, and/or biodegradation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Environmental Sciences
Yunhui Zhang, Benyi Cao, Hailong Yin, Lite Meng, Wei Jin, Fei Wang, Jian Xu, Abir Al-Tabbaa
Summary: Permeable reactive barrier (PRB) is a promising groundwater remediation technology with low costs and wide immobilization suitability. Zeolites, as reactive media, have high adsorption capacity, diverse pore structure, and high stability, making them a popular choice. Compared to other reductants, zeolites reduce fouling and clogging in PRBs. This study reviews the lab-scale applications of zeolites in PRBs and presents future prospects and suggestions for their use in groundwater remediation.
Article
Engineering, Environmental
In-Gyu Song, Yu-Gyeong Kang, Jae-Hwan Kim, Hakwon Yoon, Woo Yong Um, Yoon- Seok Chang
Summary: Unprecedented high concentrations of heavy metals have been detected in the groundwater at a zinc smelter in Seokpo, South Korea. The use of sulfidated nanoscale zerovalent iron (S-nZVI) has proved to be effective in removing contaminants and reducing microbial toxicity in the groundwater.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Qiyuan Lu, Weimin Zhang, Xia Xiong, Yadan Guo, Dandan Huang, Haiyan Liu
Summary: Hydroxyapatite-coated quartz sands were successfully synthesized and used as a permeable reactive barrier (PRB) medium for removing manganese from contaminated water. The study investigated the effects of particle size, initial concentration of manganese, and hydraulic load on manganese removal. The results showed that the initial concentration of manganese had the greatest impact on Mn(II) removal. The adsorption mechanisms were mainly ion exchange and dissolution-precipitation. The hydroxyapatite-coated quartz sands proved to be an effective medium for treating manganese-contaminated water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Altantsetseg Buyanjargal, Jiyoung Kang, Brent E. Sleep, Sung-Wook Jeen
Summary: This study conducted laboratory column experiments for sequential treatment of nitrate and phosphate in groundwater, showcasing the effectiveness of a permeable reactive barrier system consisting of woodchips and basic oxygen furnace slag. The results demonstrated successful removal of nitrate through denitrification and phosphate through precipitation of phosphate minerals. Additionally, concerns regarding high pH in the effluent water were addressed by passing it through local soil, ultimately providing a long-term remedial solution for nitrate and phosphate contamination in groundwater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
G. M. P. R. Weerakoon, K. B. S. N. Jinadasa, G. B. B. Herath, M. I. M. Mowjood, Dongqing Zhang, Soon Keat Tan, Ng Wun Jern
CLEAN-SOIL AIR WATER
(2016)
Article
Engineering, Environmental
Masanao Nagamori, M. I. M. Mowjood, Youichi Watanabe, Yugo Isobe, Tomonori Ishigaki, Ken Kawamoto
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
(2016)
Article
Environmental Sciences
Y. N. S. Wijewardana, A. T. Shilpadi, M. I. M. Mowjood, K. Kawamoto, L. W. Galagedara
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2017)
Article
Environmental Sciences
G. M. P. R. Weerakoon, K. B. S. N. Jinadasa, G. B. B. Herath, M. I. M. Mowjood, W. J. Ng
Article
Engineering, Environmental
B. G. N. Sewwandi, Meththika Vithanage, S. S. R. M. D. H. R. Wijesekara, Anushka Upamali Rajapaksha, D. G. L. M. Jayarathna, M. I. M. Mowjood
BIOREMEDIATION JOURNAL
(2012)
Article
Biochemistry & Molecular Biology
S. K. Weragoda, N. Tanaka, B. G. N. Sewwandi, M. I. M. Mowjood
CHEMISTRY AND ECOLOGY
(2010)
Article
Engineering, Civil
N. Tanaka, N. A. K. Nandasena, K. B. S. N. Jinadasa, Y. Sasaki, K. Tanimoto, M. I. M. Mowjood
CIVIL ENGINEERING AND ENVIRONMENTAL SYSTEMS
(2009)
Article
Ecology
G. M. P. R. Weerakoon, K. B. S. N. Jinadasa, G. B. B. Herath, M. I. M. Mowjood, J. J. A. van Bruggen
ECOLOGICAL ENGINEERING
(2013)
Article
Biodiversity Conservation
Norio Tanaka, K. B. S. N. Jinadasa, M. I. M. Mowjood, M. S. M. Fasly
LANDSCAPE AND ECOLOGICAL ENGINEERING
(2011)
Article
Multidisciplinary Sciences
R. T. K. Ariyawansha, B. F. A. Basnayake, A. K. Karunarathna, M. I. M. Mowjood
SCIENTIFIC REPORTS
(2018)
Article
Engineering, Civil
Udayagee Kumarasinghe, Y. Sakamoto, T. Saito, M. Nagamori, C. S. Kalpage, G. B. Herath, M. I. M. Mowjood, Ken Kawamoto
INTERNATIONAL JOURNAL OF GEOMATE
(2018)
Article
Engineering, Civil
Udayagee Kumarasinghe, Y. Inoue, T. Saito, M. Nagamori, Y. Sakamoto, M. I. M. Mowjood, K. Kawamoto
INTERNATIONAL JOURNAL OF GEOMATE
(2017)
Proceedings Paper
Agricultural Engineering
M. I. M. Mowjood, L. W. Galagedera, S. P. P. Najila Gayani
INTERNATIONAL CONFERENCE ON AGRICULTURAL ENGINEERING: NEW TECHNOLOGIES FOR SUSTAINABLE AGRICULTURAL PRODUCTION AND FOOD SECURITY
(2014)
Article
Engineering, Environmental
B. G. N. Sewwandi, Meththika Vithanage, S. S. R. M. D. H. R. Wijesekara, M. I. M. Mowjood, Shoichiro Hamamoto, Ken Kawamoto
JOURNAL OF HAZARDOUS TOXIC AND RADIOACTIVE WASTE
(2014)
Article
Engineering, Environmental
Xingxing Hu, Lingjie Liu, Yanmeng Bi, Lu Li, Chunsheng Qiu, Jingjie Yu, Shaopo Wang
Summary: In this study, the impact of exogenous folate on the start-up process of single-stage partial nitritation-anammox (SPNA) was evaluated using two lab-scale reactors. The results showed that folate addition can enhance nitrogen removal rate, extracellular polymeric substances production, hydrazine oxidase and dehydrogenase activity, as well as the relative abundance of Candidatus Brocadia.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Shaocang He, Tingting Shen, Jing Sun, Haoqi Pan, Chenxu Sun, Tianpeng Li, Runyao Li, Enshan Zhang
Summary: A novel process of acid leaching neutralization was developed for the preparation of inorganic polymeric composite ferric aluminum silicate coagulant (CFAS) using solid waste coal gasification coarse slag (CGCS). The optimized preparation process was determined through single-factor experiment and the performance of CFAS was evaluated for domestic sewage treatment. The results showed that CFAS exhibited excellent coagulation ability and achieved significant removal efficiency for turbidity, ammonia nitrogen, and chemical oxygen demand.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kinga Szatmari, Sandor Nemeth, Alex Kummer
Summary: In this article, a resilience-based reinforcement learning approach is proposed to address the potential thermal runaway issue in batch reactors. By calculating the resilience metric for reactors and utilizing Deep Q-learning to decide when to intervene in the system, resilient-based mitigation systems can be effectively developed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingyou Jiang, Qi Yao, Mingqing Su, Jingjing Li, Kunlun Lu, Dawei Ding, Han Hong
Summary: This study investigates the inhibitory characteristics and mechanisms of ABC powder on coal powder explosion. The addition of ABC powder significantly decreases the maximum explosion pressure and can completely suppress coal dust explosions. The study also reveals the thermal decomposition characteristics and reaction kinetics of the mixed system.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kubilay Bayramoglu, Mustafa Nuran
Summary: This study examines the feasibility of using pyrolytic oil from waste tires as fuel in diesel engines, and evaluates its energy, exergy, and sustainability. The results indicate that pyrolytic oil has potential as a renewable fuel source with relatively high thermal efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Xinru Duan, Yejia Lv, Jiaxing Hong, Jianzhong Wu, Jia Zhang, Yang Yue, Guangren Qian
Summary: This study successfully prepared a tube reactor with optimized catalyst formula, which showed good performance in removing dioxins and other pollutants in the experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Jiaoyang Du, Xueming Dang, Xiaorong Gan, Xin Cui, Huimin Zhao
Summary: In this study, a photocatalyst-enzyme hybrid system was constructed, which solved the issue of enzyme inactivation caused by high concentration of H2O2 through photocatalytic in-situ H2O2 production, and improved the stability and catalytic efficiency of the enzyme. The effectiveness of the system in treating phenolic EDCs was confirmed through experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Fu-Rong Xiu, Longsheng Zhan, Yingying Qi, Xinyue Lei, Jiali Wang, Haipeng Zhou, Wenting Shao
Summary: This study developed a synergetic and high-efficiency treatment of waste tantalum capacitors (WTCs) and polyvinyl chloride (PVC) using subcritical water process. The treatment significantly reduced the temperature and reaction time for metal tantalum recovery from WTCs, and improved the dechlorination efficiency of PVC. The optimized conditions resulted in 100% resin conversion efficiency of WTCs and 97.39% dechlorination efficiency of PVC. The interaction between decomposition products of WTCs and PVC produced a high level of benzoic acid.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingda Li, Jiaming Song, Yuting Li, Chaoying Meng, Shuxian Wang, Linghao Zong, Honggang Ye, Yishuai Jing, Feng Teng, Peng Hu, Haibo Fan, Guangde Chen, Xin Zhao
Summary: CdPS3 nanosheets, especially those exfoliated by sodium cholate, have shown highly efficient photocatalytic degradation performance. The strong dark adsorption and dye-sensitized photocatalytic properties of CdPS3 nanosheets contribute to high degradation efficiencies of various pollutants.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Dongxu Ouyang, Yimei Pang, Bo Liu, Zhirong Wang
Summary: This study investigates the thermal runaway features of lithium-ion cells under tunnel conditions, considering different states of charge and tunnel ceilings. The results show that the tunnel visibility is affected by the smoke generated during thermal runaway, and the shape of the tunnel ceiling influences the temperature rise differently.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)