Article
Environmental Sciences
Suellen Tonatto Ferrazzo, Mariana Tonini de Araujo, Giovani Jordi Bruschi, Eduardo Pavan Korf, William Mateus Kubiaki Levandoski, Carolina Pereira dos Santos, Nilo Cesar Consoli
Summary: Waste stabilization processes are crucial in reducing environmental risks associated with metal contamination. This study compared the metal encapsulation efficiency of an alkali-activated binder and Portland cement in waste foundry sand. The results showed that the alkali-activated binder performed better in encapsulating heavy metals.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Shaoyun Pu, Zhiduo Zhu, Weilong Song, Hairong Wang, Wangwen Huo, Jie Zhang
Summary: A new acidic phosphoric-based geopolymer binder (APG binder) was successfully synthesized and used for Pb2+ solidification/stabilization with good compressive strength and stabilization mechanism including chemical precipitation and encapsulation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Katri Piekkari, Visa Isteri, Katja Ohenoja, Mirja Illikainen
Summary: Heavy metals escaping from industrial processes and industrial waste are a significant environmental hazard all around the globe. This study focuses on stabilization-solidification of a highly toxic industrial filter slag that contains a range of different heavy metals. The results show that mayenite has good potential for stabilization-solidification applications.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Construction & Building Technology
Yi-Zhao Liu, Ri-Dong Fan, Song-Yu Liu, Chao-Zhe Zhang, Jia-Wei Sun
Summary: This study developed a sustainable binder, MPS, for efficiently stabilizing soils contaminated with high concentrations of lead and cadmium. The use of oxalic acid-activated bone meal as a substitute for KH2PO4, and the introduction of sodium carbonate and carbide slag as activators in MPC systems with high-volume fly ash were explored. The formulated MPS showed cost-effectiveness and outstanding performance in stabilizing Pb and Cd contaminated soils.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Environmental
Chengcheng Fan, Baomin Wang, Yi Qi, Ze Liu
Summary: A novel binder system using MgO and silica fume was developed for solidification/stabilization of MSWI fly ash. The blend showed good compressive strength and controlled leaching behavior of heavy metals, providing a promising method for immobilization of heavy metals in MSWI fly ash.
Article
Environmental Sciences
Ruosong Xie, Rui Ge, Zhishuncheng Li, Guangfei Qu, Yingjie Zhang, Youxiao Xu, Yingda Zeng, Ziying Li
Summary: This research proposes a sustainable and effective method for the environmentally sound utilization of copper tailings solid waste. By using copper tailings as the main raw material, a high-strength concrete material was successfully prepared, which exhibited excellent mechanical properties and heavy metal stabilization.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Alireza Komaei, Ali Noorzad, Pooria Ghadir
Summary: Stabilization and solidification of arsenic-contaminated soil using alkaline activated slag shows promising results in reducing leachability and improving strength.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Construction & Building Technology
Zhisheng Ren, Lu Wang, Hao Wang, Shuhua Liu, Jun Ren
Summary: This study uses a combination of GGBS, phosphogypsum, and lime to prepare a cementitious matrix (PS) for solidifying/stabilizing Pb (II) using solid waste materials. Regardless of the content of raw materials, a composition of 60% GGBS, 35% phosphogypsum, and 5% CaO showed excellent compressive strength and low metal leaching concentration. The study investigates the mechanism of solidification/stabilization of heavy metals and identifies the hydration products of PS as ettringite, calcium silicate hydrate, and gypsum through XRD analysis.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Aamir Khan Mastoi, Hefu Pu, Xunlong Chen, Alidekyi Sharif Nyanzi, Ashfaque Ahmed Jhatial
Summary: The study introduced a new integrated method, PHDVPSS, involving vacuum pressure, prefabricated horizontal drains, and solidification/stabilization for treating high-water content dredged contaminated sediment. Results showed that using MG binder in the PHDVPSS method led to superior performance in terms of reduced water content and leachable zinc, higher mechanical strength and dry density compared to traditional solidification/stabilization methods. Additionally, XRD and SEM-EDS tests indicated that VP-MG cases produced more hydration products, resulting in a dense matrix and decreased zinc leachability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sarra Meskini, Issam Mechnou, Moncef Benmansour, Toufik Remmal, Azzeddine Samdi
Summary: The transformation of phosphate ore into phosphoric acid generates large amounts of phosphogypsum, which is a widely stockpiled industrial by-product. Despite being considered the least damaging solution to the environment, its presence of harmful impurities such as heavy metals and radionuclides poses a risk for the receiving environment. This study explores the environmental characterization of Moroccan phosphogypsum and evaluates the environmental performance of a new lime-fly ash treated phosphogypsum based road material.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Wentao Li, Junde Qin, Yaolin Yi
Summary: This study compared the effectiveness of CaO-GGBS, MgO-GGBS, and OPC in improving the mechanical and leaching properties of Pb-contaminated clay slurry. The results showed that GGBS-based binders were more effective than OPC in improving the strength and Pb leachability of contaminated slurries. Suitable ratios between activators (CaO and MgO) and GGBS could produce similar or even higher strength than MgO-GGBS. Leachate pH and Pb leachability could be achieved between CaO-GGBS- and MgO-GGBS-treated contaminated clay slurries.
Article
Green & Sustainable Science & Technology
Shaoyun Pu, Wei Duan, Zhiduo Zhu, Wei Wang, Chen Zhang, Na Li, Ping Jiang, Zhonghu Wu
Summary: This study investigated the environmental behavior and engineering properties of APG binder stabilized Pb2+ contaminated soil. The results showed that the compressive strength of APG binder stabilized soil was higher than that of cement and alkali-activated geopolymer cement. The S/S effect of APG binder was consistent with that of alkali-activated geopolymer cement in regular environment, but exhibited better S/S effect in strong acid and strong alkali environment. The APG binder had a good application prospect in treating contaminated soil under extremely acidic environment.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Guangjun Peng, Pengpeng Zhang, Linghao Zeng, Lin Yu, Dongwei Li
Summary: This study investigated the leaching characteristics of heavy metals in three simulated environments after immobilizing Chromium ore processing residue (COPR) with composite binders. The results showed that heavy metals were mainly released from the solidified body through surface washing at a low rate. Chemical binding and physical encapsulation were the main immobilizing mechanisms to achieve coordinated disposal of Zn and Cr(VI).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Fenghui Wu, Ye Liu, Guangfei Qu, Ruosong Xie
Summary: In this study, high-strength and lightweight concrete materials based on antimony tailing powder were prepared and their properties were investigated and optimized. The results showed that the addition of antimony tailings and foaming agent can improve the strength and lightweight properties of the material.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Green & Sustainable Science & Technology
Changbin Li, Guofan Zhang, Hong Zheng, Feng Zhang, Kun Liu
Summary: This paper introduces a micro-crystallization method to process zinc leaching residue into glass-ceramics with excellent performance and high value. The glass-ceramics effectively solidify heavy metals, eliminating their high hazard, and exhibit excellent mechanical and corrosion resistance properties.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Construction & Building Technology
Kell Jones, Julia Stegemann, Judith Sykes, Peter Winslow
CONSTRUCTION AND BUILDING MATERIALS
(2016)
Article
Engineering, Environmental
Reginald B. Kogbara
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2017)
Article
Engineering, Chemical
Syeda Rahman, Zachary Grasley, Eyad Masad, Dan Zollinger, Srinath Iyengar, Reginald Kogbara
TRANSPORT IN POROUS MEDIA
(2016)
Article
Engineering, Environmental
Amitava Roy, Julia A. Stegemann
JOURNAL OF HAZARDOUS MATERIALS
(2017)
Article
Construction & Building Technology
Reginald B. Kogbara, Eyad A. Masad, David Woodward, Phillip Millar
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Energy & Fuels
Anna A. Bogush, Julia A. Stegemann, Richard Williams, Ian G. Wood
Article
Engineering, Civil
Tianchi Tang, Kumar Anupam, Cor Kasbergen, Reginald Kogbara, Athanasios Scarpas, Eyad Masad
TRANSPORTATION RESEARCH RECORD
(2018)
Article
Environmental Sciences
Reginald B. Kogbara, Baribor K. Badom, Josiah M. Ayotamuno
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2018)
Article
Green & Sustainable Science & Technology
Reginald B. Kogbara, Wubulikasimu Yiming, Srinath R. Iyengar, Osman A. E. Abdalla, Hayel M. Al-Wawi, Udeogu C. Onwusogh, Karim Youssef, Marwa Al-Ansary, Parilakathoottu A. Sunifar, Dhruv Arora
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Environmental Sciences
Reginald B. Kogbara, Wubulikasimu Yiming, Srinath R. Iyengar, Udeogu C. Onwusogh, Karim Youssef, Marwa Al-Ansary, Parilakathoottu A. Sunifar, Dhruv Arora, Ali Al-Sharshani, Osman A. E. Abdalla, Hayel M. Al-Wawi
Review
Construction & Building Technology
Jianxin Huang, Reginald B. Kogbara, Narain Hariharan, Eyad A. Masad, Dallas N. Little
Summary: This paper provides a review of research on using polymers for soil stabilization in pavement and geotechnical engineering. It discusses the properties and mechanisms of various polymer classes, such as geopolymers, biopolymers, and synthetic organic polymers, impacting soil stabilization. The challenges for wider use of polymer stabilization, including limited evaluation standards, life-cycle cost considerations, and moisture susceptibility, are highlighted, along with recommendations for future research directions.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Multidisciplinary Sciences
Reginald B. Kogbara, Wubulikasimu Yiming, Srinath R. Iyengar, Udeogu C. Onwusogh, Karim Youssef, Marwa Al-Ansary, Parilakathoottu A. Sunifar, Dhruv Arora, Ali Al-Sharshani, Osman A. E. Abdalla, Hayel M. Al-Wawi
Article
Multidisciplinary Sciences
Reginald B. Kogbara, Wubulikasimu Yiming, Srinath R. Iyengar, Udeogu C. Onwusogh, Karim Youssef, Marwa Al-Ansary, Parilakathoottu A. Sunifar, Dhruv Arora, Osman A. E. Abdalla, Hayel M. Al-Wawi
Article
Engineering, Civil
Reginald B. Kogbara, Eyad A. Masad, Emad Kassem, A. (Tom) Scarpas
JOURNAL OF TRANSPORTATION ENGINEERING PART B-PAVEMENTS
(2018)
Article
Environmental Sciences
Reginald B. Kogbara, Bernard B. Dumkhana, Josiah M. Ayotamuno, Reuben N. Okparanma