综合生物工艺用于Se(VI) 修复使用草:将酸盐去除与生物气生产相结合
Amulya Kotamraju1, Mohanakrishnan Logan1, Piet N L Lens1
1National University of Ireland, Galway, H91 TK33 Galway, Ireland.
Journal of hazardous materials
|August 6, 2023
概括
(DW) 有效地从废水中去除酸盐,而丰富的DW生物质可以提高生物气的生产. 预处理进一步提高了这种植物修复过程中的甲产量.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 使用草 (DW) 的植物疗法是污水处理的一个有前途的方法.
- 草显示出从污染水中去除营养素和有毒化合物的潜力.
研究的目的:
- 使用DW生物质开发一种整合的酸盐 (Se(VI)) 修复工艺.
- 评估后续使用Se(VI) 丰富的DW用于增强生物气生产.
主要方法:
- 草生物质被用来从废水中修复酸盐.
- 用丰富的DW生物质 (Se-DW) 和控制的DW生物质 (C-DW) 被评估为生物气生产.
- 酸性,性和热水预处理方法应用于DW生物质的固体和液体部分,以提高生物气产量.
主要成果:
- 与C-DW (24.46 mL gCOD-1) 相比,Se-DW生物质的甲产量 (48.38 mL gCOD-1) 显著增加.
- 预处理通常增加了Se-DW和C-DW的生物气产量,液体分数优于固体分数.
- 对Se-DW的水热预处理和对C-DW的酸性预处理导致了最高的生物气产量.
结论:
- 使用草进行酸盐的综合植物疗法,然后进行无氧消化,是废水处理和能源回收的可行方法.
- 丰富和特定的预处理策略可以显著提高从草生物质的沼气生产.
- 在高达1.7毫克L-1的Se(VI) 度下,甲的产生是最佳的,而更高的度会抑制该过程.
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