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在液化床反应堆中进行强化脱,使用悬浮硫自型微生物填充剂

Zhenao Gu¹, Zheying Liu², Yu Cheng³

¹State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.

Bioresource technology

|November 2, 2023

概括

一个新的流化床反应堆显著提高了基于硫的自无化 (SAD) 速率,克服了性能缓慢的问题. 这种高效的系统迅速实现了高酸盐的去除,为水污染控制提供了一个有前途的解决方案.

科学领域:

环境科学环境科学
微生物学微生物学
化学工程是化学工程的重要组成部分.

背景情况:

酸盐污染对环境构成重大威胁.
基于硫的自脱 (SAD) 是一种可持续的,低碳的酸盐去除方法.
现有的SAD反应堆往往遭受缓慢的脱率和漫长的启动时间.

研究的目的:

开发和评估使用悬浮复合材料填充剂的流化床脱反应堆.
为了提高脱率和缩短启动时间,相比传统的封装式反应堆.
研究反应堆内的微生物群落和脱路径.

主要方法:

用复合材料填充剂与元素硫和SAD细菌固定流化床反应堆的建造.
反应堆的运行和脱率的监测.
对脱路径的分析 (混合型与混合型). 和微生物社区组成 (专注于Thiobacillus).

主要成果:

流化床反应堆在运行第一天就实现了稳定状态.
实现了0.61gN L-1d-1的高脱率,比装载反应堆高出2.4倍.
经过短暂的运行期,SAD过程成为主要的脱化途径 (>70%),Thiobacillus被确定为关键的丰富细菌.

结论:

使用微生物填充剂的液化床SAD反应器显示显著提高了脱性能.
这种创新的反应堆设计克服了传统SAD系统的关键局限性,为酸盐污染控制提供了更有效的方法.
这些发现为实际实施和优化脱技术提供了宝贵的见解.

关键词:

脱率是指脱的速度.流体化生物反应器是一种流体化生物反应器.固定化的微生物填充剂.这是一个低碳的低碳.硫的自性脱化

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