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在以元素硫为基础的膜生物反应器中利用硫粉和脱效率,并添加凝固剂

Minsu Pyo¹, Dongyeon Kim², Hyung Soo Kim³

¹Department of Environmental Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan-si, Gyeongbuk 38453, Republic of Korea; Graduate School of Water Resources, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440746, Republic of Korea.

|December 14, 2024

概括

在膜生物反应器中优化元素硫的自化脱,需要平衡硫和凝固剂剂量. 过度的凝固剂有助于去除,但会损害微生物活动,降低酸盐去除效率.

科学领域:

环境科学与工程环境科学与工程
微生物学微生物学
水处理技术水处理技术

背景情况:

与膜生物反应器 (MBR) 技术相结合的元素硫自化脱是一种具有成本效益的酸盐去除方法.
这些系统的稳定运行取决于高效的硫利用和有效的管理.

研究的目的:

在MBR系统中,研究基于元素硫的自脱 (ESAD) 中硫消耗的动态.
评估凝固剂添加对脱效率,硫利用和微生物群落结构的影响.
确定最佳的操作参数,以平衡和酸盐的去除,同时保持反应堆的稳定性.

主要方法:

对硫消耗率及其与酸盐去除相关性的实验分析.
在不同的凝固剂剂量策略下评估去除效率.
微生物群落分析,包括在不同的操作条件下识别关键的硫氧化细菌.

主要成果:

硫的消耗率与酸盐的去除率直接相关,强调了对石化硫可用性的需要.
凝固剂的添加改善了的去除,但过量剂量抑制了基于元素硫的微生物活动,减少了酸盐的去除,增加了酸盐的积累.
高凝剂度导致关键的硫氧化细菌,如Sulfurimonas的丰度下降.

结论:

针对硫和凝固剂的优化剂量策略对于ESAD-MBR过程的可持续运行至关重要.
平衡和酸盐去除需要仔细考虑凝固剂对微生物群落和反应器性能的影响.
这些发现为提高用于废水处理的膜生物反应器的效率和稳定性提供了实际指导.

关键词:

自转型脱化自转型脱化凝固剂凝固剂是一种凝固剂.膜污染是因为膜污染.是一种的物质.硫的消费硫的消费.

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