Ariel Nunez Garcia, Hardiljeet K. Boparai, Cjestmir V. de Boer, Ahmed Ishtiaque Amin Chowdhury et al.
Treatment of nano zerovalent iron (nZVI) with lower valent forms of sulfur compounds (sulfidation) has the potential to increase the selectivity and reactivity of nZVI with target contaminants and to decrease inter-particle aggregation for improving its mobility. These developments help in addressin...
Nicholas Head, Jason I. Gerhard, Ainsley M. Inglis, Ariel Nunez Garcia et al.
In situ chemical oxidation (ISCO) has demonstrated success in remediating soil and groundwater contaminated with chlorinated volatile organic compounds (CVOCs). However, its performance is often hindered in low-permeability or heterogeneous media due to an inability to effectively deliver the oxidan...
Ariba Khan, Arpita Roy, S. Bhasin, Talha Bin Emran et al.
Environment contamination is a colossal worriment across the world, owing to its detrimental and negative impact on health and ecological systems. Dyes are one of the synthetic organic chemicals that are utilised in a variety of fields, including textiles. As a result, throughout one's production an...
Tariqul Islam, Yanliang Li, Hefa Cheng
Biochars (BCs) are considered as ecofriendly and multifunctional materials with significant potential for remediation of contaminated water and soils, while engineered biochars (E-BCs) with enlarged surface areas and abundant surface functional groups can perform even better in environmental remedia...
Ariel Nunez Garcia, Hardiljeet K. Boparai, Ahmed Ishtiaque Amin Chowdhury, Cjestmir V. de Boer et al.
Sulfidated nano zerovalent iron (S-nZVI), stabilized with carboxymethyl cellulose (CMC), was successfully synthesized on site and injected into the subsurface at a site contaminated with a broad range of chlorinated volatile organic compounds (cVOCs). Transport of CMC-S-nZVI to the monitoring wells,...
Islam M. Rafizul, Muhammed Alamgir
This study aims to characterize the leachate and to investigate the tropical climatic influence on leachate characteristics of lysimeter studies under different seasonal variations at KUET campus, Bangladesh. Three different situations of landfill were considered here as well as both the open dump l...
Mingsong Wu, Xun Xu, Kexiang Lu, Xueqi Li
The degradation of polychlorinated biphenyls (PCBs) and total organic carbon (TOC) by sediment microbial fuel cell (SMFC) with/without nanoscale zero-valent iron (NZVI) addition was investigated. It was found that the combined application led to the highest removal efficiencies of PCBs (37.55 ± 1.11...
Xuxu Wang, Ying Wang, Chun Zhao, Yunhua Zhu et al.
Recently, free reactive manganese species (RMnS) generated via permanganate catalytic oxidation technology has been applied to contaminants abatement and sludge dewatering. This study proposed a novel free RMnS generation method in ultrasound enhanced carbon nanotube (CNTs)/permanganate process (UCP...
Juanjuan Yao, Zihan Chen, Huiying Zhang, Naiyun Gao et al.
BiFeO3 (BFO) nanocage prepared by metal-organic-framework derivatization (MOF-d) was adopted as activator to first investigate the effect mechanism of visible-light on naproxen-degradation via peroxymonosulfate (PMS) activation. MOF-d BFO expressed more excellent PMS activation ability than hydrothe...
Kashif Mahmud, Md Delwar Hossain, Shahriar Shams
The aim of this research was to determine appropriate treatment technique for effective treatment of heavily polluted landfill leachate. We accomplished several treatment experiments: (i) aerobic biological treatment, (ii) chemical coagulation, (iii) advanced oxidation process (AOP) and (iv) several...
Ju-Hee Oh, Kazuo Yamamoto, Hidetoshi Kitawaki, Satoshi Nakao et al.
Md. Tajuddin Sikder, Shunitz Tanaka, Takeshi Saito, Masaaki Kurasaki
Mir Shariful Islam, Ibrahim Maamoun, Omar Falyouna, Osama Eljamal et al.
Rizwan Tareq, Nahida Akter, Md. Shafiul Azam
The industrial revolution in the 20th century led to the evolution of numerous anthropogenic pollutants. Biochar, solid residue obtained from the pyrolysis of naturally available biomass, has attracted the attention of researchers due to its ability to remove these pollutants through adsorption from...
Laurent Charlet, Guillaume Morin, Jérôme Rose, Yuheng Wang et al.
Massive deleterious impacts to human health are resulting from the use of arsenic-bearing groundwaters in South-East Asia deltas and elsewhere in the world for drinking, cooking and/or irrigation. In Bangladesh alone, a fifth of all deaths are linked to arsenicosis. In the natural and engineered sub...
Yunhui Zhang, Benyi Cao, Hailong Yin, Lite Meng et al.
Permeable reactive barrier (PRB) is one of the most promising in-situ groundwater remediation technologies due to its low costs and wide immobilization suitability for multiple contaminants. Reactive medium is a key component of PRBs and their selection needs to consider removal effectiveness as wel...
Xueyan Lv, Bin Gao, Yuanyuan Sun, Shunan Dong et al.
Accurately predicting the fate and transport of nano-TiO2 in porous media is critical to assess its environmental impact. This study was designed to understand the effects of gain size and structural heterogeneity under different ionic strength (IS) on the fate and transport of nano-TiO2 in saturate...
Doris van Halem, Sergio Javier Pérez Olivero, W.W.J.M. de Vet, J.Q.J.C. Verberk et al.
Subsurface iron and arsenic removal has the potential to be a cost-effective technology to provide safe drinking water in rural decentralized applications, using existing shallow tube wells. A community-scale test facility in Bangladesh was constructed for injection of aerated water (∼1 m(3)) into a...
Kunjie Hou, Zhoujie Pi, Fei Chen, Liping He et al.
The activation of peroxymonosulfate (PMS) by Fe(II) or Fe(III) for environmental decontamination is severely limited by the low conversion rate from Fe(III) to Fe(II). Here, we found that this puzzling problem could virtually be solved by introducing trace amounts of S2-. With the addition of 0.2 mM...
Ying Zheng, Jing Yang, Bingrou Gong, Xiaohui Zhang et al.