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用于废水中的高速和去除的化石-硫化石-石灰石复合物:柱状研究

Yinuo Yang¹, Gaopan Huang¹, Changxin Chen¹

¹State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163(#) Xianlin Avenue, Nanjing, 210023, China.

|November 19, 2023

概括

一种新型的pyrrhotite-sulfur-limestone复合生物过器有效地从废水中去除和. 这种生物过器表现出高的去除率和弹性,为净化水提供了有前途的解决方案.

科学领域:

环境工程环境工程
水处理技术水处理技术
微生物生态学微生物生态学

背景情况:

(N) 和 (P) 是废水中的关键污染物,导致过度缩.
传统的处理方法在实现高N和P去除效率方面面临挑战.
自转型脱化提供了一种有前途的去除方法.

研究的目的:

开发和评估一种新型的 pyrrhotite-sulfur-limestone复合物自性脱生物过器 (PSLCAD).
评估PSLCAD在从各种废水类型中去除酸 (NO3-N) 和酸 (PO3-P) 的效率.
调查操作条件和微生物群落对治疗性能的影响.

主要方法:

准备皮洛 - 硫 - 石灰石复合材料 (PSLC) 颗粒 (2-4.75毫米).
一个PSLC自性脱生物过器 (PSLCAD) 的建造和运行.
合成,市政和工业二次废水的处理.
分析了和的去除速度,液压保留时间 (HRT),pH和影响度.
使用分子技术识别主导细菌群落.

主要成果:

PSLCAD证明了从所有测试的废水中显著地去除了NO₃^--N和PO₄^3--P.
最高的氧化总去除率 (TON) 达到1749.91 mg/L/d.
在0.5小时的HRT和21.09毫克/升的流入NO₃^--N时,TON去除量为1005.12毫克/升,废水NO₃^--N在0.10毫克/升.
废水PO₄3--P始终低于0.2毫克/升,而影响的PO₄3--P约为0.5毫克/升.
短HRT (0.5小时) 并没有对N去除产生负面影响,但废水pH值低于7是有害的.
主要的细菌包括Thiobacillus和Sulfurimonas,对于脱至关重要,以及大量的异质脱剂.
酸盐的去除主要是通过Fe-P沉发生的.

结论:

该PSLCAD系统在从废水中去除和方面表现出高效率.
和硫之间的协同作用增强了自性脱,导致更高的N和P去除率.
PSLCAD为先进的废水处理提供了强大而有效的解决方案.

关键词:

自转型脱化自转型脱化微生物社区的微生物社区.亚酸盐和酸盐的去除方法皮罗酸盐-硫黄-石灰石复合材料.二次废水是二次废水.

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