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Ganiyu O. Oyetibo Matthew O. Ilori Sunday Adekunle Adebusoye Oluwafemi S. Obayori Olukayode O. Amund 《Environmental monitoring and assessment》2010,168(1-4):305-314
Samples of soil, water, and sediments from industrial estates in Lagos were collected and analyzed for heavy metals and physicochemical composition. Bacteria that are resistant to elevated concentrations of metals (Cd2?+?, Co2?+?, Ni2?+?, Cr6?+?, and Hg2?+?) were isolated from the samples, and they were further screened for antibiotic sensitivity. The minimum tolerance concentrations (MTCs) of the isolates with dual resistance to the metals were determined. The physicochemistry of all the samples indicated were heavily polluted. Twenty-two of the 270 bacterial strains isolated showed dual resistances to antibiotics and heavy metals. The MTCs of isolates to the metals were 14 mM for Cd2?+?, 15 mM for Co2?+? and Ni2?+?, 17 mM for Cr6?+?, and 10 mM for Hg2?+?. Five strains (Pseudomonas aeruginosa, Actinomyces turicensis, Acinetobacter junni, Nocardia sp., and Micrococcus sp.) resisted all the 18 antibiotics tested. Whereas Rhodococcus sp. and Micrococcus sp. resisted 15 mM Ni2?+?, P. aeruginosa resisted 10 mM Co2?+?. To our knowledge, there has not been any report of bacterial strains resisting such high doses of metals coupled with wide range of antibiotics. Therefore, dual expressions of antibiotics and heavy-metal resistance make the isolates, potential seeds for decommissioning of sites polluted with industrial effluents rich in heavy metals, since the bacteria will be able to withstand in situ antibiosis that may prevail in such ecosystems. 相似文献
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Adedibu C. Tell Samson O. Owalude Sunday J. Olatunji Vincent O. Adimul Sunday E. Elaigwu Lukman O. Alimi Peter A. Ajibade Oluwatobi S. Oluwafemi 《环境科学学报(英文版)》2018,30(2):264-275
We herein report the removal of amodiaquine, an emerging drug contaminant from aqueous solution using [Zn2(fum)2(bpy)] and [Zn4 O(bdc)3](fum = fumaric acid; bpy =4,4-bipyridine; bdc = benzene-1,4-dicarboxylate) metal–organic frameworks(MOFs) as adsorbents. The adsorbents were characterized by elemental analysis, Fourier transform infrared(FT-IR) spectroscopy, and powder X-ray diffraction(PXRD). Adsorption process for both adsorbents were found to follow the pseudo-first-order kinetics, and the adsorption equilibrium data fitted best into the Freundlich isotherm with the R~2 values of 0.973 and0.993 obtained for [Zn_2(fum)_2(bpy)] and [Zn_4 O(bdc)_3] respectively. The maximum adsorption capacities foramodiaquine in this study were found to be 0.478 and 47.62 mg/g on the[Zn_2(fum)_2(bpy)] and [Zn_4 O(bdc)_3] MOFs respectively, and were obtained at p H of 4.3 for both adsorbents. FT-IR spectroscopy analysis of the MOFs after the adsorption process showed the presence of the drug. The results of the study showed that the prepared MOFs could be used for the removal of amodiaquine from wastewater. 相似文献
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Ganiyu Oladunjoye Oyetibo Matthew Olusoji Ilori Oluwafemi Sunday Obayori Olukayode Oladipo Amund 《Environmental monitoring and assessment》2013,185(8):6809-6818
Chromium (VI) [Cr (VI)] biosorption by four resistant autochthonous bacterial strains was investigated to determine their potential for use in sustainable marine water-pollution control. Maximum exchange between Cr (VI) ions and protons on the cells surfaces were at 30–35 °C, pH?2.0 and 350–450 mg/L. The bacterial strains effectively removed 79.0–90.5 % Cr (VI) ions from solution. Furthermore, 85.3–93.0 % of Cr (VI) ions were regenerated from the biomasses, and 83.4–91.7 % of the metal was adsorbed when the biomasses was reused. Langmuir isotherm performed better than Freundlich isotherm, depicting that Cr (VI) affinity was in the sequence Rhodococcus sp. AL03Ni?>?Burkholderia cepacia AL96Co?>?Corynebacterium kutscheri FL108Hg?>?Pseudomonas aeruginosa CA207Ni. Biosorption isotherms confirmed that Rhodococcus sp. AL03Ni was a better biosorbent with a maximum uptake of 107.46 mg of Cr (VI) per g (dry weight) of biomass. The results highlight the high potential of the organisms for bacteria-based detoxification of Cr (VI) via biosorption. 相似文献
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Sunday A. Adebusoye Matthew O. Ilori Oluwafemi S. Obayori Ganiyu O. Oyetibo Kehinde A. Akindele Olukayode O. Amund 《The Environmentalist》2010,30(1):24-34
Soil artificially contaminated with diesel oil, treated with cassava steep liquor (CSL) and designated EXPS. Similar polluted
soil without CSL amendment (CSS1) and uncontaminated soil (CSS2) served as controls. There were dramatic changes in the physico-chemistry
of systems EXPS and CSS1 with utilization of the inorganic nutrients to near-depletion in the former than the latter. In contrast,
the properties of CSS2 remained relatively stable throughout the investigated period. Similarly, the population densities
of microflora in the polluted soils showed an initial decrease between days 0 and 5 before assuming an increasing trend with
percent hydrocarbon-utilizers ranging significantly (P < 0.05) from 0.56 to 6.6, 0.1 to 2.46 and 0.56 to 0.26, respectively for EXPS, CSS1, and CSS2. In EXPS, the residual oil
decreased from 98,045 to 1,102.3 mg/kg soil at day 35 representing about 98.88% degradation. The corresponding value for CSS1
was 98,106.1 to 52,110 mg/kg soil, amounting to 46.88% oil disappearance. The GC fingerprints of alkane fractions of the recovered
oil reduced significantly by day 15 for EXPS with near-similar results of CSS1. However, by day 35, there was complete disappearance
of all peaks including the pristane and phytane molecules in the former whereas in CSS1, there were no observable changes.
The germination and growth profiles of maize seed plants as evidence of recovery of oil-impacted soils were poor in CSS1 (10%)
with pronounced abnormal morphology when compared with the data obtained for EXPS (74%) and CSS2 (80%). These results suggest
that CSL could be an indispensable tool in bioremediation of environments contaminated with hydrocarbons. The technology of
application is simple, rapid and cost-effective and may be appropriate for use in developing countries to ameliorate the problems
of petroleum pollution. 相似文献
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The study was carried out to investigate the effects of application of cassava mill effluent on bacteria and fungi types and
population in a soil grown to maize (Zea Mays L.) Microbial populations were determined before pollution of soil with cassava mill effluent, six weeks after pollution
with effluent and at the end of the experiment. Results obtained showed that bacteria and fungi populations increased with
time as rates of pollution increased. It was also observed that some bacteria present in the soil at the beginning of the
experiment and up to the sixth week after pollution with effluent became extinct at the end of the experiment. 相似文献
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Oluwafemi S. Obayori Sunday A. Adebusoye Adams O. Adewale Ganiyu O. Oyetibo Odunola O. Oluyemi Rashid A. Amokun Matthew O. Ilori 《环境科学学报(英文版)》2009,21(2):243-248
Four hydrocarbon degraders isolated from enriched oil- and asphalt-contaminated soils in Lagos, Nigeria, were tested for their
petroleum degradation potentials. All the isolates were identified as species of Pseudomonas. Pseudomonas putida P11 demonstrated a
strong ability to degrade kerosene, gasoline, diesel, engine oil and crude oil while P. aeruginosa BB3 exhibited fair degradative ability
on crude oil, gasoline, engine oil, anthracene and pyrene but weak on kerosene, diesel and dibenzothiophene. Pseudomonas putida
WL2 and P. aeruginosa MVL1 grew on crude oil and all its cuts tested with the latter possessing similar polycyclic aromatic potentials
as P11. All the strains grew logarithmically with 1–2 orders of magnitude and with generation time ranging significantly between 3.07
and 8.55 d at 0.05 level of confidence. Strains WL2 and MVL1 utilized the oil substrate best with more than 70% in 6 d experimental
period, whereas the same feat was achieved by P11 in 12 d period. BB3 on the other hand degraded only 46% within 6 d. Interestingly,
data obtained from gas chromatographic analysis of oil recovered from the culture fluids of MVL1 confirmed near-disappearance of
major peaks (including aliphatics and aromatics) in the hydrocarbon mixture. 相似文献
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Khan Muhammad Idrees Bouyahya Abdelhakim Hachlafi Naoufal E. L. Menyiy Naoual El Akram Muhammad Sultana Sabira Zengin Gokhan Ponomareva Lilya Shariati Mohammad Ali Ojo Oluwafemi Adeleke Dall’Acqua Stefano Elebiyo Tobiloba Christiana 《Environmental science and pollution research international》2022,29(17):24411-24444
Environmental Science and Pollution Research - Breast cancer (BC) is one of the most common and recurring diseases and the second leading cause of death in women. Despite prevention, diagnostics,... 相似文献
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Alegbeleye Oluwadara Daramola Oluwafemi Bamidele Adetunji Adewole Tomiwa Ore Odunayo T. Ayantunji Yemisi Juliet Omole Richard Kolade Ajagbe Damilare Adekoya Susanna Oluwaseyi 《Environmental science and pollution research international》2022,29(38):56948-57020
Environmental Science and Pollution Research - This review discusses the fundamental principles and mechanism of antibiotic removal from water of some commonly applied treatment techniques... 相似文献
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Alegbeleye Oluwadara Daramola Oluwafemi Bamidele Adetunji Adewole Tomiwa Ore Odunayo T. Ayantunji Yemisi Juliet Omole Richard Kolade Ajagbe Damilare Adekoya Susanna Oluwaseyi 《Environmental science and pollution research international》2022,29(38):57021-57021
Environmental Science and Pollution Research - 相似文献
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