Elgazali Abdelkareem, Althalb Hakima, Elmusrati Izzeddin, Ahmed Hasna M, Banat Ibrahim M
Faculty of Arts and Sciences, Tocra Campus, University of Benghazi, Benghazi P.O. Box 1308, Libya.
Environmental and Biological Chemistry Research Center (EBCRC), University of Benghazi, Tocra P.O. Box. 9480, Libya.
Microorganisms. 2023 Oct 17;11(10):2577. doi: 10.3390/microorganisms11102577.
Heavy metals pollution associated with oil spills has become a major concern worldwide. It is essential to break down these contaminants in the environment. In the environment, microbes have been used to detoxify and transform hazardous components. The process can function naturally or can be enhanced by adding nutrients, electron acceptors, or other factors. This study investigates some factors affecting hydrocarbon remediation technologies/approaches. Combinations of biological, chemical, and eco-toxicological techniques are used for this process while monitoring the efficacy of bacterial products and nutrient amendments to stimulate the biotransformation of contaminated soil. Different hydrocarbon removal levels were observed with bacterial augmentation ( and ), exhibiting a total petroleum hydrocarbon (TPH) reduction of 61%, which was further improved to a 73% reduction using bacterial augmentation combined with nutrient amendment (nitrogen, potassium, and phosphorus). A heavy metal analysis of the polluted soils showed that the combination of nutrient and bacterial augmentation resulted in a significant reduction (-value < 0.05) in lead, zinc, and barium. Toxicity testing also showed that a reduction of up to 50% was achieved using these remediation approaches.
与石油泄漏相关的重金属污染已成为全球主要关注的问题。分解环境中的这些污染物至关重要。在环境中，微生物已被用于对有害成分进行解毒和转化。该过程可以自然发生，也可以通过添加营养物质、电子受体或其他因素来增强。本研究调查了一些影响烃类修复技术/方法的因素。在监测细菌产物和营养改良剂刺激污染土壤生物转化的效果时，将生物、化学和生态毒理学技术结合用于此过程。通过细菌强化（和）观察到不同的烃去除水平，总石油烃（TPH）减少了61%，使用细菌强化与营养改良剂（氮、钾和磷）结合后，TPH减少进一步提高到73%。对污染土壤的重金属分析表明，营养物质和细菌强化的组合导致铅、锌和钡显著减少（-值<0.05）。毒性测试还表明，使用这些修复方法可实现高达50%的减少。
