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Browsing Chemical Engineering by Author "Tendenedzai, Job Tatenda"
Now showing items 1-10 of 10
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Tendenedzai, Job Tatenda; Brink, Hendrik Gideon (The Italian Association of Chemical Engineering, 2019)Selenite (Se(IV)) readily bio-accumulates as compared to elemental selenium (Se(0)) which is considered to be biologically inert and relatively less toxic, therefore its microbial reduction from selenium laden waters is ...
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Tendenedzai, Job Tatenda; Brink, Hendrik Gideon (The Italian Association of Chemical Engineering, 2019)Selenium is a ubiquitously occurring natural mineral, however, an upsurge in anthropogenic sources has caused its release into the environment to aggravate thereby exceeding the proposed World Health Organisation (WHO) ...
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Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik Gideon (MDPI, 2022-02-16)Selenite (SeO3 2), the most toxic and most reactive selenium (Se) oxyanion, can be reduced to elemental selenium (Se0) nanoparticles by a variety of bacteria, including Enterococcus spp. Previously, the orthodox view held ...
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Tendenedzai, Job Tatenda; Brink, Hendrik Gideon; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2021)Selenite (SeO3 2-), the most toxic and most reactive selenium (Se) oxyanion can be reduced to elemental selenium (Se0 ) by a variety of bacteria, including Pseudomonas stutzeri NT-I. Se0 is in the form of selenium ...
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Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik Gideon (Nature Research, 2023-11-21)Selenium, an essential micronutrient for plants and animals, can cause selenium toxicity as an oxyanion or at elevated doses. However, the toxic selenite oxyanion, can be converted into less harmful elemental nano-selenium ...
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Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik G. (Italian Association of Chemical Engineering, 2023)Selenite (SeO3 2-) is a toxic selenium oxyanion which readily bio-accumulates in the food chain. Enterococcus species were found to reduce SeO3 2- to elemental selenium (Se0) more rapidly (in 1 h) as compared to ...
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Mangwandi, Tafadzwa M.; Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik Gideon (Italian Association of Chemical Engineering, 2022)With the drastic increase in selenium-releasing anthropogenic activities, the bioaccumulation of toxic selenium oxyanion in the environment has increased significantly, posing deleterious effects to living organisms. ...
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Tendenedzai, Job Tatenda (University of Pretoria, 2020)Selenium (Se) in the aquatic environment is predominantly found as the soluble selenium oxyanions; selenate (SeO42-), and selenite (SeO32-). These oxyanions are toxic, and they readily bio-accumulate in the food chain. ...
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Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik Gideon (MDPI, 2021-09)Lactic acid bacteria (LAB) such as Enterococcus spp. have an advantage over several bacteria because of their ability to easily adapt to extreme conditions which include high temperatures, highly acidic or alkaline conditions ...
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Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik Gideon (Italian Association of Chemical Engineering, 2020)The soluble selenium oxyanion, selenite (Se(IV)) is toxic and it bioaccumulates at low concentrations which is why its presence in aquatic systems has to be regulated. Pseudomonas stutzeri NT-I is one of the numerous m ...
Now showing items 1-10 of 10