Search publications

Reset filters Search by keyword

No publications found.

 

Microbial fuel cell (MFC)-based biosensor for real-time detection of heavy metals and BTEX contaminants in water

Author(s): Baik JH; Hwang JH; Ryu H; Gomez-Alvarez V; Kim KT; Hyoung Lee W;

This study evaluates a mixed-culture microbial fuel cell (MFC) as a rapid, real-time biosensor for detecting water toxicity caused by heavy metals and benzene, toluene, ethylbenzene, and xylene (BTEX) compounds. A dual-chamber MFC (200 mL) equipped with carbon fiber electrodes was operated with an electroactive biofilm on the anode, and toxicity responses ...

Article GUID: 41962434


Development of an evaporation-driven sampling system for the in situ long-term monitoring of heavy metals in surface water

Author(s): Li X; Ma H; Shi S; Tian X; Nie L; Han X; Sun J; Chen Z; Li J; Chen K;

Non-electrically driven samplers, commonly known as passive samplers, are widely used in surface water monitoring to determine the Time-Weighted Average Concentration (CTWA) of contaminants. In this study, we developed an evaporation-driven sampling system and methodology, comprising an Evaporation-Driven Sampler (EDS) for sampling and its standard versio ...

Article GUID: 41886856


Metal Exposure, Bioaccumulation, and Toxicity Assessment in Sediments from the St. Lawrence River Before and After Remediation Using a Resuspension Technique

Author(s): Javid M; Mulligan CN; Lefranc M; Rosabal Rodriguez M;

This study, using Hyalella azteca and Chironomus riparius, evaluated the effects of exposure to heavy metal-contaminated sediments collected from the study area under three conditions: before remediation, after remediation, and suspended particulate matter (SPM). The selected toxicity tests allowed for the evaluation of biological responses across varying ...

Article GUID: 40559906


Sustainable Recovery of Critical Minerals from Wastes by Green Biosurfactants: A Review

Author(s): Deravian B; Mulligan CN;

Biosurfactants have emerged as promising agents for environmental remediation due to their ability to complex, chelate, and remove heavy metals from contaminated environments. This review evaluates their potential for recovering critical minerals from waste materials to support renewable energy production, emphasizing the role of biosurfactant-metal inter ...

Article GUID: 40509347


Radiation tolerance and biodegradation performance of a marine bacterium Acinetobacter sp. Y9 in radioactive composite oil-contaminated wastewater

Author(s): Yan J; Luo Q; Zhu B; Chen Z; Chen Q;

The tolerance and degradation characteristics of a marine oil-degrading strain Acinetobacter sp. Y9 were investigated in the presence of diesel oil and simulated radioactive nuclides (Mn2+, Co2+, Ni2+, Sr2+, Cs+) at varying concentrations, as well as exposure to ?-ray radiation (Co-60). The maximum tolerable concentrations for Co2+and Ni2+ were found to b ...

Article GUID: 39806541


Emerging hazardous chemicals and biological pollutants in Canadian aquatic systems and remediation approaches: A comprehensive status report

Author(s): Adeola AO; Paramo L; Fuoco G; Naccache R;

Emerging contaminants can be natural or synthetic materials, as well as materials of a chemical, or biological origin; these materials are typically not controlled or monitored in the environment. Canada is home to nearly 7 % of the world's renewable water supply and a wide range of different kinds of water systems, including the Great Lake, rivers, c ...

Article GUID: 39278485


Mechanisms and controlling factors of heavy metals removal by electroflocculation in estuarine environments

Author(s): Hadikhani R; Karbassi A; Tajziehchi S; Mehdizadeh Y;

Estuaries play a crucial role in preventing the influx of metals from rivers into seas, thereby offering potential insights for the water purification industry. This study seeks to identify the key parameters (including pH, electricity conductivity (EC), and Eh) influencing the removal efficiency of Mn, Zn, Cu, Co, and Ni during natural and electro-floccu ...

Article GUID: 38991606


A robust, low-temperature, closed-loop anaerobic system for high-solid mixed farm wastes: advancing agricultural waste management solutions in Canada

Author(s): Bele V; Goyette B; An C; Achouri IE; Chaib O; Rajagopal R;

This study investigates the effectiveness of low-temperature (20 ± 1 °C) anaerobic digestion (AD) for two organic multiple farm substrate combinations: Set 1 comprising chicken manure (CM), dairy manure (DM), and waste corn silage (CS) and Set 2 comprising CM, DM, pig manure (PM), and CS. Inoculum adaptation steps were carried out using CM and CM+DM for S ...

Article GUID: 38777978


Isolation and Identification of Mercury-Tolerant Bacteria LBA119 from Molybdenum-Lead Mining Soils and Their Removal of Hg2

Author(s): Yao H; Wang H; Ji J; Tan A; Song Y; Chen Z;

Aims: To screen heavy metal-tolerant strains from heavy metal-contaminated soil in mining areas and determine the tolerance of the strains to different heavy metals and their removal rates through experiments. Methods: Mercury-resistant strain LBA119 was isolated from mercury-contaminated soil samples in Luanchuan County, Henan Province, China. The strai ...

Article GUID: 36977027


Artificial aging induced changes in biochar,s properties and Cd2+ adsorption behaviors

Author(s): Wang Z; Bian Y; Xu Y; Zheng C; Jiang Q; An C;

id="eng-abstract">
Fresh biochar has been widely applied to the remediation of heavy metals in soil by its property of adsorption, but the changes in its physicochemical properties and in situ adsorption performance over time cannot be ignored. In this study, the sorption of Cd<sup>2+</sup> by corn straw biochars (CB) and mun ...

Article GUID: 36251198


Seasonal source identification and source-specific health risk assessment of pollutants in road dust

Author(s): Wang J; Huang JJ; Mulligan C;

Humans who are exposed to metals in road dust may have potential health risks through touching, ingesting, and inhaling the suspended road dust. There were limited studies to link seasonal emission sources to health risks from metals in road dust. In this study, metals in road dust from different functional areas were seasonally monitored. The contributio ...

Article GUID: 34510345


-   Page 1 / 2   -