Results 191 to 200 of about 20,688 (263)

Electrophoresis enhanced transport of nano-scale zero valent iron

Advances in Water Resources, 2012
Abstract Electrokinetics (EK) has been used extensively to remove heavy metals from low permeability porous media. Electrokinetics (EK) or more specifically electrophoresis (EP) has also been proposed to enhance transport of nanoscale zero valent iron (NZVI) in fine grained porous media in the subsurface. However, increased dissolved oxygen and lower
Ahmed I.A. Chowdhury, Denis M. O’Carroll, Yanqing Xu, Brent E. Sleep   +3 more
openaire   +1 more source

Phosphate enhanced uranium stable immobilization on biochar supported nano zero valent iron

Journal of Hazardous Materials, 2022
Uranium (U) immobilization from wastewater by zero valent iron (ZVI) was widely concerned through reduction and surface adsorption. Releasing of U due to re-oxidation of U(IV) into U(VI) limited the application of ZVI in U decontamination. In this work, a kind of biochar supported nano zero valent iron (Fe/BC(900)) was obtained by carbothermal ...
Yang, Ruan, Huimin, Zhang, Zijing, Yu, Zenghui, Diao, Gang, Song, Minhua, Su, Li'an, Hou, Diyun, Chen, Shuao, Wang, Lingjun, Kong   +9 more
openaire   +2 more sources

Application and mechanism of various modified nano zero-valent iron in wastewater treatment: A critical review

Green Chemistry
The rising productivity and continuous discharge of inorganic/organic wastewater pose significant threats to human health and environmental safety, making contamination control an urgent priority.
Wei Teng, Kang Yang, Junhui Chen, Hongji Li, Junwei Han   +4 more
semanticscholar   +1 more source

Synthesis and characterisation of stable and efficient nano zero valent iron

Environmental Science and Pollution Research, 2018
Nano zero valent iron (nZVI) is an excellent adsorbent/reductant with wide applicability in remediation of persistent contaminants in soil, water and groundwater aquifers. There are concerns about its environmental fate, agglomeration, toxicity and stability in the air.
Kassim O, Badmus, Elizabeth, Coetsee-Hugo, Hendrik, Swart, Leslie, Petrik   +3 more
openaire   +2 more sources

Enhancing anaerobic digestion of sulphate wastewater by adding nano-zero valent iron

Environmental Technology, 2022
In this paper, the effects of nano-zero valent iron (nZVI) on anaerobic digestion of sulphate wastewater with different SO42-/COD ratios, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that nZVI could effectively enhance the treatment efficiency
Jiacheng, Liu, Yongyu, Ding, Wen, Qiu, Qunpeng, Cheng, Chenxi, Xu, Guozhi, Fan, Guangsen, Song, Bo, Xiao   +7 more
openaire   +2 more sources

Iron oxide shell mediated environmental remediation properties of nano zero-valent iron

Environmental Science: Nano, 2017
Nano zero-valent iron (nZVI) has attracted much more attention for its potential applications in the fields of environmental contaminant remediation and detoxification.
Yi Mu, Falong Jia, Zhihui Ai, Lizhi Zhang   +3 more
openaire   +1 more source

Effects of biochar supported nano zero-valent iron with different carbon/iron ratios on two-phase anaerobic digestion of food waste.

Bioresource Technology, 2023
The promotion effects of biochar supported nano zero-valent iron (BC/nZVI) with different carbon/iron ratios on two-phase anaerobic digestion (AD) of food waste (FW) were studied. Results suggested that when the carbon/iron ratio was 3:1 AD system showed
Pan Wang, Miao Yu, Peiru Lin, Yi Zheng, L. Ren   +4 more
semanticscholar   +1 more source

Potential Application of Nano Zero Valent Iron in Environmental Protection

2017
Nanoscale zero-valent iron particles (nZVI) have been studied intensively in recent years as a new and promising technology for environmental remediation. nZVI is a readily available and low-cost reducing agent, which also has high reactivity towards a broad range of contaminants.
Dragana Tomašević Pilipović, Đurđa Kerkez, Božo Dalmacija, Milena Bečelić-Tomin, Aleksandar Došić   +4 more
openaire   +2 more sources

Gas-bubbled nano zero-valent iron process for high concentration arsenate removal

Journal of Hazardous Materials, 2011
In this study, batch experiments were performed to investigate a novel process for high concentration arsenate removal in the presence of air and/or CO(2) bubbling. The pretreatment step, CO(2) bubbling at 300 mL/min for 5 min, was taken to adjust the solution pH to an acidic environment, followed by air bubbling at 300 mL/min for 10 min to increase ...
Tanboonchuy, Visanu, Hsu, Jia-Chin, Grisdanurak, Nurak, Liao, Chih-Hsiang   +3 more
openaire   +3 more sources

Metagenomic analysis reveals the mechanisms of biochar supported nano zero-valent iron in two-phase anaerobic digestion of food waste: microbial community, CAZmey, functional genes and antibiotic resistance genes.

Journal of Environmental Management
The mechanisms of biochar supported nano zero-valent iron (BC/nZVI) on two-phase anaerobic digestion of food waste were investigated. Results indicated that the performance of both acidogenic phase and methanogenic phase was effectively facilitated.
Miao Yu, Hailin Shao, Pan Wang, L. Ren
semanticscholar   +1 more source