Good quality drinking water is essential for human physiology and perpetual existence but the ava... more Good quality drinking water is essential for human physiology and perpetual existence but the availability remains a challenge most especially in developing countries. As a result of increase in population growth, local effort to satisfy its potable services has been taken over by private sectors, selling it in packaged plastic sachets. The need to ascertain both microbiological and physicochemical quality in order to determine safety become paramount. Ten different brands of sachet water were collected at random at the first instance of five visits and then another 10 samples were collected at the second instance of visit within Dutse metropolis. They were analyzed for physical/organoleptic and some physicochemical properties including total dissolve solids (TDS: 30.60-162.00mg/L), conductivity (27.00-453(µscm -), salinity (11.07-186.4mg/l), hardness (8.05-7.04mg/l), alkalinity (09-82mg/l), temperature , chloride (0.00-0.02mg/l) and laminate thickness (0.032-0.065mm). They were all within the specifications for drinking water quality by World Health Organization (WHO) and National Agency for Food, Drug Administration (NAFDAC) and other regulatory bodies. This indicated high level of conformity to specified standard procedures in treatment, packaging, storage, and distribution. These might lead to significant decrease in waterborne illnesses (non-infectious) in Dutse metropolis. It is highly recommended that these manufacturers of sachet water should keep on maintaining good standard of quality in order to safeguard public health.
This study was conducted to assess the decontamination of heavy metals of an environmental concer... more This study was conducted to assess the decontamination of heavy metals of an environmental concern in spent engine oil (SEO) contaminated soil, through the adoption of Staphylococcus aureus and Bacillus cereus cocultures, isolated from Dutse mechanic village, Nigeria. About 1.5 kg of autoclaved soil was contaminated with SEO at three levels. The sterilized soil was then amended with compost, powdered cocoa pod husk (CPH), and powdered cow dung (CD). Subsequently, bio-augmentation with bacterial co-cultures (150 ml) was done. Heavy metal concentrations; Arsenic (As), Cadmium (Cd), Chromium (Cr), Nickel (Ni) and Lead (Pb) were estimated at the commencement, at the fifth and tenth week of the study. The factorial experiment was laid out in a completely randomized design (CRD). Results indicate that bio-stimulation adopted through the amendments did not have significant effects on the bacterial decontamination of soil especially at the 5 th week (P> 0.05). CD only influenced the decontamination of Cd at 5% contamination level (0.0008 mg\ kg), compared with compost that recorded the least effect (0.00360 mg\ kg) at the 5 th week. Meanwhile, CPH had the highest decontamination effect on Cr (0.004 and 0.000 mg\ kg) at 10% and 15% contamination levels; respectively, at the 5 th week. However at the 10 th week, complete removal of As was influenced by compost, CPH, and CD using 5%, 10% and 15% SEO contamination levels, respectively (P< 0.05). The decontamination efficacies of S. aureus and B. cereus recorded in this study is an indication of their potentialities for application in bioremediation of heavy metals.
World Journal of Environmental Research, May 31, 2022
The study assessed the quality of water obtainable in six (6) storage tanks present in the male a... more The study assessed the quality of water obtainable in six (6) storage tanks present in the male and female hostels on the Federal University Dutse campus. Physicochemical analyses; temperature, pH, turbidity, electrical conductivity, nitrate, and phosphate were conducted using standard methods. Presumptive, confirmed, and completed tests were employed to determine total and fecal coliforms from the water samples using the most probable number (MPN) technique. Generated results from the parameters were compared with the allowable standards of the Nigerian Standard for Drinking Water Quality (NSDWQ) and the World Health Organisation (WHO). Results obtained on the physicochemical status of the water indicate that all measured parameters conformed to NSDWQ and WHO permissible standards. The results obtained in this study also show the presence of bacteria in the water present in the storage tanks which may constitute a health risk amongst students drinking it. It is therefore recommended that the water pumped and stored in these storage tanks should be adequately treated.
Acta Universitatis Sapientiae, Agriculture and Environment, 2021
This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-... more This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-oil- (SEO) contaminated soil bioremediated with bacterial inoculants and processed biostimulants: compost, sole cocoa pod husk (CPH), and sole cow dung (CD). SEO with 5%, 10%, and 15% densities was artificially contaminated with sterilized soil. Subsequently, biostimulants and bacterial inoculants, Staphylococcus aureus and Bacillus cereus, were applied. The treatments were replicated three times, adopting a completely randomized design. After the biodegradation assay that lasted for 70 days, Amaranthus cruentus seeds were sown, while its growth parameters, plant height, number of leaves, and stem girth were monitored for 6 weeks after sowing (WAS). The results generated indicate that the applied biostimulants and bacterial inoculants accomplished significant (P < 0.05) reclamation of the SEO-contaminated soil as the test plant recorded substantial growth compared with the controls th...
Water is a vital gift of nature and elixir to life but population growth has outpaced local effor... more Water is a vital gift of nature and elixir to life but population growth has outpaced local effort to satisfy its potable services hence taken over by private sector sale in packaged plastic sachets. The need to ascertain the microbiological quality in order to determine the safety becomes paramount. Ten (10) different brands of sachet water were collected at random at each of the ten visits (n=100) in Dutse metropolis in wet season and then in dry season, making a total of 200 of sachet water samples (n=200). They were analyzed for bacterial loads including aerobic mesophilic and total coliform count, detection of selected bacteria of medical importance such as Escherichia coli (0157:H7 inclusive), Salmonella sp and Vibrio cholera using appropriate media. Results obtained showed that all the water samples met the zero criterion for the presence of coliforms as recommended by WHO and other related bodies. No growth was observed on any of the inoculated plates, indicating absence of ...
Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the p... more Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the presence of total coliform in any beverage renders it unfit for human consumption. Objectives: Due to non-existence of scientific data on the safety status of the ready-to-drink Zobo which is a popular local beverage, we did conduct this study to assess the bacteriological quality of the lots sold to consumers on the campus of Federal University Dutse (FUD), Nigeria. Methods: Purposive sampling was employed to sample nine (9) locally packaged Zobo in three (3) different outlets; FUD Bakery (BAK) where three (3) were assayed (BAKA, BAKB, and BAKC), FUD Backside (BS) where three (3) samples were assayed (BSA, BSB, and BSC), and Morocco Girls' hostel (MGH) three (3) samples were assayed (MGHA, MGHB, and MGHC). Standard methods were used to assay the sampled Zobo. Results: Results obtained indicate that samples from MGH (8.0×10⁴ CFU/mL) had the lowest total viable count (TVC), while samples from BAK (2.8×10⁷ CFU/mL) recorded the highest TVC. However, samples assayed from MGH recorded no total coliform count. The number of bacterial colonies recorded in BAKA and BAKB was not significantly different from each other (p>0.05). However, the number of bacterial colonies recorded from MGHA was significantly different from those obtained in MGHB and MGHC (p<0.05). Conclusion: Due to the results obtained, we can conclude that Zobo samples assayed in the sampling points were not fit for human consumption during the conduct of our study.
This study was conducted to assess the decontamination of heavy metals of an environmental concer... more This study was conducted to assess the decontamination of heavy metals of an environmental concern in spent engine oil (SEO) contaminated soil, through the adoption of Staphylococcus aureus and Bacillus cereus cocultures, isolated from Dutse mechanic village, Nigeria. About 1.5 kg of autoclaved soil was contaminated with SEO at three levels. The sterilized soil was then amended with compost, powdered cocoa pod husk (CPH), and powdered cow dung (CD). Subsequently, bio-augmentation with bacterial co-cultures (150 ml) was done. Heavy metal concentrations; Arsenic (As), Cadmium (Cd), Chromium (Cr), Nickel (Ni) and Lead (Pb) were estimated at the commencement, at the fifth and tenth week of the study. The factorial experiment was laid out in a completely randomized design (CRD). Results indicate that bio-stimulation adopted through the amendments did not have significant effects on the bacterial decontamination of soil especially at the 5 th week (P> 0.05). CD only influenced the decontamination of Cd at 5% contamination level (0.0008 mg\ kg), compared with compost that recorded the least effect (0.00360 mg\ kg) at the 5 th week. Meanwhile, CPH had the highest decontamination effect on Cr (0.004 and 0.000 mg\ kg) at 10% and 15% contamination levels; respectively, at the 5 th week. However at the 10 th week, complete removal of As was influenced by compost, CPH, and CD using 5%, 10% and 15% SEO contamination levels, respectively (P< 0.05). The decontamination efficacies of S. aureus and B. cereus recorded in this study is an indication of their potentialities for application in bioremediation of heavy metals.
Good quality drinking water is essential for human physiology and perpetual existence but the ava... more Good quality drinking water is essential for human physiology and perpetual existence but the availability remains a challenge most especially in developing countries. As a result of increase in population growth, local effort to satisfy its potable services has been taken over by private sectors, selling it in packaged plastic sachets. The need to ascertain both microbiological and physicochemical quality in order to determine safety become paramount. Ten different brands of sachet water were collected at random at the first instance of five visits and then another 10 samples were collected at the second instance of visit within Dutse metropolis. They were analyzed for physical/organoleptic and some physicochemical properties including total dissolve solids (TDS: 30.60-162.00mg/L), conductivity (27.00-453(µscm -), salinity (11.07-186.4mg/l), hardness (8.05-7.04mg/l), alkalinity (09-82mg/l), temperature , chloride (0.00-0.02mg/l) and laminate thickness (0.032-0.065mm). They were all within the specifications for drinking water quality by World Health Organization (WHO) and National Agency for Food, Drug Administration (NAFDAC) and other regulatory bodies. This indicated high level of conformity to specified standard procedures in treatment, packaging, storage, and distribution. These might lead to significant decrease in waterborne illnesses (non-infectious) in Dutse metropolis. It is highly recommended that these manufacturers of sachet water should keep on maintaining good standard of quality in order to safeguard public health.
This study was conducted to assess the decontamination of heavy metals of an environmental concer... more This study was conducted to assess the decontamination of heavy metals of an environmental concern in spent engine oil (SEO) contaminated soil, through the adoption of Staphylococcus aureus and Bacillus cereus cocultures, isolated from Dutse mechanic village, Nigeria. About 1.5 kg of autoclaved soil was contaminated with SEO at three levels. The sterilized soil was then amended with compost, powdered cocoa pod husk (CPH), and powdered cow dung (CD). Subsequently, bio-augmentation with bacterial co-cultures (150 ml) was done. Heavy metal concentrations; Arsenic (As), Cadmium (Cd), Chromium (Cr), Nickel (Ni) and Lead (Pb) were estimated at the commencement, at the fifth and tenth week of the study. The factorial experiment was laid out in a completely randomized design (CRD). Results indicate that bio-stimulation adopted through the amendments did not have significant effects on the bacterial decontamination of soil especially at the 5 th week (P> 0.05). CD only influenced the decontamination of Cd at 5% contamination level (0.0008 mg\ kg), compared with compost that recorded the least effect (0.00360 mg\ kg) at the 5 th week. Meanwhile, CPH had the highest decontamination effect on Cr (0.004 and 0.000 mg\ kg) at 10% and 15% contamination levels; respectively, at the 5 th week. However at the 10 th week, complete removal of As was influenced by compost, CPH, and CD using 5%, 10% and 15% SEO contamination levels, respectively (P< 0.05). The decontamination efficacies of S. aureus and B. cereus recorded in this study is an indication of their potentialities for application in bioremediation of heavy metals.
World Journal of Environmental Research, May 31, 2022
The study assessed the quality of water obtainable in six (6) storage tanks present in the male a... more The study assessed the quality of water obtainable in six (6) storage tanks present in the male and female hostels on the Federal University Dutse campus. Physicochemical analyses; temperature, pH, turbidity, electrical conductivity, nitrate, and phosphate were conducted using standard methods. Presumptive, confirmed, and completed tests were employed to determine total and fecal coliforms from the water samples using the most probable number (MPN) technique. Generated results from the parameters were compared with the allowable standards of the Nigerian Standard for Drinking Water Quality (NSDWQ) and the World Health Organisation (WHO). Results obtained on the physicochemical status of the water indicate that all measured parameters conformed to NSDWQ and WHO permissible standards. The results obtained in this study also show the presence of bacteria in the water present in the storage tanks which may constitute a health risk amongst students drinking it. It is therefore recommended that the water pumped and stored in these storage tanks should be adequately treated.
Acta Universitatis Sapientiae, Agriculture and Environment, 2021
This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-... more This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-oil- (SEO) contaminated soil bioremediated with bacterial inoculants and processed biostimulants: compost, sole cocoa pod husk (CPH), and sole cow dung (CD). SEO with 5%, 10%, and 15% densities was artificially contaminated with sterilized soil. Subsequently, biostimulants and bacterial inoculants, Staphylococcus aureus and Bacillus cereus, were applied. The treatments were replicated three times, adopting a completely randomized design. After the biodegradation assay that lasted for 70 days, Amaranthus cruentus seeds were sown, while its growth parameters, plant height, number of leaves, and stem girth were monitored for 6 weeks after sowing (WAS). The results generated indicate that the applied biostimulants and bacterial inoculants accomplished significant (P < 0.05) reclamation of the SEO-contaminated soil as the test plant recorded substantial growth compared with the controls th...
Water is a vital gift of nature and elixir to life but population growth has outpaced local effor... more Water is a vital gift of nature and elixir to life but population growth has outpaced local effort to satisfy its potable services hence taken over by private sector sale in packaged plastic sachets. The need to ascertain the microbiological quality in order to determine the safety becomes paramount. Ten (10) different brands of sachet water were collected at random at each of the ten visits (n=100) in Dutse metropolis in wet season and then in dry season, making a total of 200 of sachet water samples (n=200). They were analyzed for bacterial loads including aerobic mesophilic and total coliform count, detection of selected bacteria of medical importance such as Escherichia coli (0157:H7 inclusive), Salmonella sp and Vibrio cholera using appropriate media. Results obtained showed that all the water samples met the zero criterion for the presence of coliforms as recommended by WHO and other related bodies. No growth was observed on any of the inoculated plates, indicating absence of ...
Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the p... more Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the presence of total coliform in any beverage renders it unfit for human consumption. Objectives: Due to non-existence of scientific data on the safety status of the ready-to-drink Zobo which is a popular local beverage, we did conduct this study to assess the bacteriological quality of the lots sold to consumers on the campus of Federal University Dutse (FUD), Nigeria. Methods: Purposive sampling was employed to sample nine (9) locally packaged Zobo in three (3) different outlets; FUD Bakery (BAK) where three (3) were assayed (BAKA, BAKB, and BAKC), FUD Backside (BS) where three (3) samples were assayed (BSA, BSB, and BSC), and Morocco Girls' hostel (MGH) three (3) samples were assayed (MGHA, MGHB, and MGHC). Standard methods were used to assay the sampled Zobo. Results: Results obtained indicate that samples from MGH (8.0×10⁴ CFU/mL) had the lowest total viable count (TVC), while samples from BAK (2.8×10⁷ CFU/mL) recorded the highest TVC. However, samples assayed from MGH recorded no total coliform count. The number of bacterial colonies recorded in BAKA and BAKB was not significantly different from each other (p>0.05). However, the number of bacterial colonies recorded from MGHA was significantly different from those obtained in MGHB and MGHC (p<0.05). Conclusion: Due to the results obtained, we can conclude that Zobo samples assayed in the sampling points were not fit for human consumption during the conduct of our study.
This study was conducted to assess the decontamination of heavy metals of an environmental concer... more This study was conducted to assess the decontamination of heavy metals of an environmental concern in spent engine oil (SEO) contaminated soil, through the adoption of Staphylococcus aureus and Bacillus cereus cocultures, isolated from Dutse mechanic village, Nigeria. About 1.5 kg of autoclaved soil was contaminated with SEO at three levels. The sterilized soil was then amended with compost, powdered cocoa pod husk (CPH), and powdered cow dung (CD). Subsequently, bio-augmentation with bacterial co-cultures (150 ml) was done. Heavy metal concentrations; Arsenic (As), Cadmium (Cd), Chromium (Cr), Nickel (Ni) and Lead (Pb) were estimated at the commencement, at the fifth and tenth week of the study. The factorial experiment was laid out in a completely randomized design (CRD). Results indicate that bio-stimulation adopted through the amendments did not have significant effects on the bacterial decontamination of soil especially at the 5 th week (P> 0.05). CD only influenced the decontamination of Cd at 5% contamination level (0.0008 mg\ kg), compared with compost that recorded the least effect (0.00360 mg\ kg) at the 5 th week. Meanwhile, CPH had the highest decontamination effect on Cr (0.004 and 0.000 mg\ kg) at 10% and 15% contamination levels; respectively, at the 5 th week. However at the 10 th week, complete removal of As was influenced by compost, CPH, and CD using 5%, 10% and 15% SEO contamination levels, respectively (P< 0.05). The decontamination efficacies of S. aureus and B. cereus recorded in this study is an indication of their potentialities for application in bioremediation of heavy metals.
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