制造浪潮:生物元素硫的不成比例使得以元素硫为基础的生物技术在水/废水处理方面更具实际吸引力
Yan-Ying Qiu1, Liang Zhang2, Juntao Xia1
1School of Environmental Science & Engineering, Sun Yat-sen University, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangzhou, China.
Water research
|December 6, 2025
概括
生物元素硫不成比例化 (BESD) 使用自性S0不成比例化细菌 (S0DB) 增强了水处理. 这种可持续的方法克服了传统元素硫 (S0) 和金属去除方法的局限性.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 基于元素硫 (S0) 的生物技术提供可持续的水处理,但由于S0的生物可访问性较低,因此面临有效性问题.
- 生物可访问的多硫化物改善了S0过程,但添加外源硫化物是昂贵和危险的.
- 自营型S0不成比例的细菌 (S0DB) 可以在生物学上产生硫化物和聚硫化物,呈现出一种新的溶液.
研究的目的:
- 评估生物元素硫不成比例化 (BESD) 的可行性和有效性,使用S0DB用于水和废水处理.
- 分析S0DB的分布,种植和调节.
- 评估BESD与现有的基于S0的流程的整合潜力及其性能增强能力.
主要方法:
- 在人工生物反应堆中分析S0DB的全球分布和种植情况.
- 研究S0DB对酸盐暴露的反应和与化剂共同培养的研究.
- 评估S0DB对有毒金属 (Cu, Zn, Pd, Hg) 的耐受性.
主要成果:
- 发现S0DB可以在生物反应器中进行缩,产生与硫酸盐还原相当的高硫化物.
- 优化的条件允许S0DB和脱剂的共存,显著改善脱率 (> 1.8x).
- S0DB表现出对有毒金属的耐受性,并且可以在没有有机共消费的情况下处理含金属的废水.
结论:
- BESD是一种有前途的无有机生物技术,用于增强基于S0的水处理工艺.
- S0DB提供了一个具有成本效益和可持续的解决方案,用于从具有挑战性的废水流中去除和金属.
- 需要进一步的研究来加强BESD的多功能性,并扩大其在低碳水处理中的实际应用.
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