Evaluation of Toxicity and Bioremediation of Contaminated Drinking Water Sources in Delta State, Nigeria

Olorunfemi, Daniel I.; Uzakah, Richard P.; Ofomata, Romeo; Okoruwa, Charles

doi:10.9734/jabb/2020/v23i630160

Cited by 2 publications

(1 citation statement)

References 17 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Myco ltration of iron has been described, where drastic reductions in iron levels in borehole and river water were observed (Akpaj and Olorunfemi 2014;Olorunfemi et al 2015;Olorunfemi et al 2020). In these studies, however, only the total iron content was assessed.…”

Section: Introductionmentioning

confidence: 99%

Mycofiltration of aqueous iron (III) and imidacloprid solutions, and the effects of the filtrates on selected biomarkers of the freshwater snail Helisoma duryi

Mnkandla

Mosoabisane

Basopo³

et al. 2023

Preprint

View full text Add to dashboard Cite

A mycofilter made of Pleurotus ostreatus was used for the removal of iron (III) and imidacloprid from aqueous solutions. Batch mycofiltration, at a dosage of 1g of mycofilter per 50 ml, was performed on iron (III) solutions of different concentrations (0.99, 10.7, 22.9, and 27.72 mg/L) and pH (3.3, 7 and 11). For column mycofiltration, the mycofilter was packed into pyrex columns (3.3 x 15 cm) to desired bed heights. Iron (III) and imidacloprid solutions of 18.99 mg/L and 234.70 ng/L, respectively, were filtered at a constant flow rate. Thereafter, Helisoma duryi snails were exposed for 96 hours to the respective filtrates, and their catalase and acetylcholinesterase activities were assessed. Batch mycofiltration showed iron (III) removal rates as high as 85%. Column mycofiltration showed removal rates of 94 and 31% for iron (III) and imidacloprid, respectively. Catalase activity was significantly reduced (p < 0.05) in the snails exposed to iron (III) or imidacloprid filtrates, compared to the snails exposed to the non-mycofiltered media. A significantly higher acetylcholinesterase activity was induced by iron (III) filtrates in comparison with the non-mycofiltered media (p < 0.05). There were no significant differences in acetylcholinesterase activity (p > 0.05) in the snails exposed to mycofiltered and non-mycofiltered imidacloprid media. Mycofilter characterisation using Fourier Transform Infrared Spectrophotometry revealed significant changes in transmittance intensity in the mycofilters used for the iron (III) vs the ones used for the imidacloprid solutions. Mycofiltration was found to improve water quality although iron (III) was removed more effectively than imidacloprid.

show abstract

Section: Introductionmentioning

confidence: 99%

Mycofiltration of aqueous iron (III) and imidacloprid solutions, and the effects of the filtrates on selected biomarkers of the freshwater snail Helisoma duryi

Mnkandla

Mosoabisane

Basopo³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Mycofiltration of Aqueous Iron (III) and Imidacloprid Solutions, and the Effects of the Filtrates on Selected Biomarkers of the Freshwater Snail Helisoma duryi

Mnkandla,

Mosoabisane,

Basopo

et al. 2024

Arch Environ Contam Toxicol

View full text Add to dashboard Cite

To alleviate the burden of water contamination, a newly developed form of bioremediation known as mycofiltration can be employed. Mycofiltration is an environment-friendly technology involving the treatment of contaminated water by passing it through a network of saprophytic fungal mycelium. A mycofilter made of Pleurotus ostreatus was used for the removal of iron (III) and imidacloprid from aqueous solutions. Batch mycofiltration, at a dosage of 1 g of mycofilter per 50 mL, was performed on iron (III) solutions of different concentrations (0.99, 10.7, 22.9, and 27.72 mg/L) and pH (3.3, 7 and 11). For column mycofiltration, the mycofilter was packed into pyrex columns (3.3 × 15 cm) to desired bed heights. Iron (III) and imidacloprid solutions of 18.99 mg/L and 234.70 ng/L, respectively, were filtered at a constant flow rate. Thereafter, Helisoma duryi snails were exposed for 96 h to the respective filtrates, and their catalase and acetylcholinesterase activities were assessed. Batch mycofiltration showed iron (III) removal rates as high as 85%. Column mycofiltration showed removal rates of 94 and 31% for iron (III) and imidacloprid, respectively. Catalase activity was significantly reduced (p < 0.05) in the snails exposed to iron (III) or imidacloprid filtrates, compared to the snails exposed to the non-mycofiltered media. A significantly higher acetylcholinesterase activity was induced by iron (III) filtrates in comparison with the non-mycofiltered media (p < 0.05). There were no significant differences in acetylcholinesterase activity (p > 0.05) in the snails exposed to mycofiltered and non-mycofiltered imidacloprid media. Mycofilter characterisation using Fourier Transform Infrared Spectrophotometry revealed significant changes in transmittance intensity in the mycofilters used for the iron (III) vs the ones used for the imidacloprid solutions. Mycofiltration was found to improve water quality although iron (III) was removed more effectively than imidacloprid.

show abstract

Evaluation of Toxicity and Bioremediation of Contaminated Drinking Water Sources in Delta State, Nigeria

Cited by 2 publications

References 17 publications

Mycofiltration of aqueous iron (III) and imidacloprid solutions, and the effects of the filtrates on selected biomarkers of the freshwater snail Helisoma duryi

Mycofiltration of aqueous iron (III) and imidacloprid solutions, and the effects of the filtrates on selected biomarkers of the freshwater snail Helisoma duryi

Mycofiltration of Aqueous Iron (III) and Imidacloprid Solutions, and the Effects of the Filtrates on Selected Biomarkers of the Freshwater Snail Helisoma duryi

Contact Info

Product

Resources

About