相关实验视频

Updated: Jul 27, 2025

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

从废水和污泥中同时回收,采用一种新的非化去除系统

Hao Zhang¹, Wei Zhang¹, Shuang-Shuang Zhang¹

¹Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.

Bioresource technology

|June 11, 2023

概括

这项研究引入了一种用于同时进行脱和回收的新工艺. 增加的酸盐水平通过使多酸盐积聚生物体 (DPAO) 脱,促进了高效的回收,从而提高了的去除.

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:

同时从废水中去除和对于防止过度缩至关重要.
回收对于资源可持续性和循环经济原则至关重要.
无化去除 (DPR) 为营养管理提供了一个有前途的生物方法.

研究的目的:

开发和评估一种用于同时进行脱和回收的新工艺.
为了研究酸盐度对DPR和释放效率的影响.
描述涉及该过程的微生物群落和代谢途径.

主要方法:

一个新的生物反应器系统被设计用于同时去和去除.
应用了不同的酸盐度来评估它们对的吸收和释放的影响.
用标准分析方法量化生物膜和废水中的总量.
通过分子技术确定了无化聚酸盐积聚生物体 (DPAOs) 的丰富程度.
用酸发酵来分析释放机制.
斯特鲁维特结晶是为了回收而进行的.

主要成果:

酸盐度从15.0到25.0毫克/升的增加显著增强了的吸收和储存在生物膜中,总达到54.6±3.5毫克/克SS.
富化流中的度达到了172.5±3.5 mg/L.
DPAO的丰度从5.6%增加到28.0%,表明微生物社区结构发生了变化.
参与碳,和代谢的基因表现出增加的活动,促进营养循环.
细胞外聚合物 (EPS) 释放被确定为发酵期间释放的主要途径.
纯粹的斯特鲁维特晶体已经成功地从丰富的流和发酵超中恢复出来.

结论:

这种新的工艺有效地整合了脱和回收,为废水处理提供了可持续的解决方案.
优化酸盐度是最大限度地提高去除效率和促进后续回收的关键.
增强的DPAO丰富性和促进的新陈代谢有助于系统的高性能.
斯特鲁维特沉是一种可行的方法,可以回收作为一种有价值的资源.

关键词:

脱化过程中的脱.大基因组测序的测序.的回收使用方法清除的方法是去除.斯特鲁维特 (Struvite) 是一种石头.

更多相关视频

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Published on: July 22, 2019

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Published on: January 22, 2015

相关概念视频

Factors Affecting Solubility

Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.