College of Ecology and Environment, Hainan University, Haikou, 570228, China.
Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China.
Environ Sci Pollut Res Int. 2022 Sep;29(42):63182-63192. doi: 10.1007/s11356-022-20267-1. Epub 2022 Apr 22.
Tetramethyl thiuram disulfide (TMTD), an emerging pollutant with ecotoxicity and accumulation in rubber wastewater, is directly discharged by factories into the surrounding soil to save costs, and this disrupts the nearby ecosystem. In this study, an efficient bioremediation microbial community (WR-2) dominated by Bacillus was acclimatized and isolated from soil contaminated by rubber wastewater. After passing through the metabolic process of WR-2, the ecotoxic TMTD decomposes within 14 days. In the pot experiment, WR-2 not only completed the bioremediation of contaminated soil but also significantly improved the crop growth conditions and the product quality. These results show that WR-2 has broad application prospects in the bioremediation of soil contaminated by rubber wastewater. It also provides a theoretical framework for the resource utilization of the effluent at the end of the initial rubber processing.
四甲基秋兰姆二硫化物（TMTD）是一种具有生态毒性和在橡胶废水中积累的新兴污染物，工厂为了节省成本，将其直接排放到周围的土壤中，这破坏了附近的生态系统。在本研究中，从受橡胶废水污染的土壤中驯化和分离出一种以芽孢杆菌为主导的高效生物修复微生物群落（WR-2）。经过 WR-2 的代谢过程，具有生态毒性的 TMTD 在 14 天内分解。在盆栽实验中，WR-2 不仅完成了受污染土壤的生物修复，还显著改善了作物的生长条件和产品质量。这些结果表明，WR-2 在生物修复受橡胶废水污染的土壤方面具有广阔的应用前景。它也为初始橡胶加工末端废水的资源化利用提供了理论框架。
