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Updated: Apr 8, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

同时去除和回收在基于颗粒性污泥的部分脱/anammox-hydroxyapatite沉 (PD/A-HAP) 过程中,在低C/N比率和溶解氧限制下

Lijie Chen¹, Zhenjun Wu¹, Jiayu Niu¹

¹School of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China; Zhengzhou International Cooperation Base for Science and Technology on Carbon Neutrality of Organic Solid Waste Conversion, Zhengzhou 450001, PR China; Henan International Joint Laboratory of Environmental Pollution Remediation and Grain Quality Security, Zhengzhou 450001, China.

Bioresource technology

|January 12, 2025

概括

这项研究结合了部分脱/Anammox (PD/A) 与酸 (HAP) 结晶以同时去除和. 综合系统实现了高清除效率,并使从废水中回收.

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:

同时去除和对于废水处理至关重要.
从废水中回收资源,特别是,正在变得越来越重要.
将生物营养去除与矿物结晶相结合,提供了新的解决方案.

研究的目的:

开发和评估一个单一反应堆系统,同时去除和回收和.
为了研究部分脱/亚纳摩克斯 (PD/A) 和酸 (HAP) 结晶的协同效应.
在操作压力下分析微生物群落和基因表达.

主要方法:

一个单一的反应堆被设计为整合PD/A和HAP结晶.
经营参数如pH值,污泥度,COD/TN比率和溶解氧等被优化.
测量了去除和的效率.
进行了超基因组分析,以评估微生物社区结构和基因表达.

主要成果:

综合系统实现了稳定的运行,具有高除效率 (94.13%) 和高除效率 (73.6%).
溶解的氧气压力显著增加了"Candidatus Brocadia"的丰度 (从1%增加到26.1%),增强了anammox的活性.
关键基因 (sdh, suc, hzs) 的升级进一步支持了Anammox细菌 (AnAOB) 的活动.
鉴定出酸 (HAP) 是颗粒的主要无机成分.

结论:

联合PD/A和HAP结晶过程有效地同时去除和.
该系统通过HAP降水促进资源回收.
微生物群落的转变,特别是Anammox细菌的丰富,是过程成功的关键.
这种综合方法显示了可持续废水处理与资源回收的巨大潜力.

关键词:

亚纳姆莫克斯 (Anammox) 是一个氧亚帕提特是一种氧亚帕提特.移除的方法移除的方法部分脱化部分脱化清除的方法是去除.

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