Cargando…
Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms
The study tested the water purification mechanism of the combination of microorganisms and purification materials via characteristic, enzymatic, and metagenomics methods. At 48 h, the removal rates of total nitrogen, total phosphorous, and Mn chemical oxygen demand in the combination group were 46.9...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9399813/ https://www.ncbi.nlm.nih.gov/pubmed/36033894 http://dx.doi.org/10.3389/fmicb.2022.944366 |
_version_ | 1784772611403677696 |
---|---|
author | Zheng, Yao Wang, Yuqin Yang, Xiaoxi Gao, Jiancao Xu, Gangchun Yuan, Julin |
author_facet | Zheng, Yao Wang, Yuqin Yang, Xiaoxi Gao, Jiancao Xu, Gangchun Yuan, Julin |
author_sort | Zheng, Yao |
collection | PubMed |
description | The study tested the water purification mechanism of the combination of microorganisms and purification materials via characteristic, enzymatic, and metagenomics methods. At 48 h, the removal rates of total nitrogen, total phosphorous, and Mn chemical oxygen demand in the combination group were 46.91, 50.93, and 65.08%, respectively. The alkaline phosphatase (AKP) activity increased during all times tested in the volcanic rock, Al@TCAP, and exogenous microorganism groups, while the organophosphorus hydrolase (OPH), dehydrogenase (DHO), and microbial nitrite reductase (NAR) activities increased at 36-48, 6-24, and 36-48 h, respectively. However, the tested activities only increased in the combination groups at 48 h. Al@TCAP exhibits a weak microbial loading capacity, and the Al@TCAP removal is primarily attributed to adsorption. The volcanic rock has a sufficient ability to load microorganisms, and the organisms primarily perform the removal for improved water quality. The predominant genera Pirellulaceae and Polynucleobacter served as the sensitive biomarkers for the treatment at 24, 36-48 h. Al@TCAP increased the expression of Planctomycetes and Actinobacteria, while volcanic rock increased and decreased the expression of Planctomycetes and Proteobacteria. The growth of Planctomycetes and the denitrification reaction were promoted by Al@TCAP and the exogenous microorganisms. The purification material addition group decreased the expression of Hyaloraphidium, Chytridiomycetes (especially Hyaloraphidium), and Monoblepharidomycetes and increased at 36-48 h, respectively. Ascomycota, Basidiomycota, and Kickxellomycota increased in group E, which enhanced the nitrogen cycle through microbial enzyme activities, and the growth of the genus Aspergillus enhanced the phosphorous purification effect. |
format | Online Article Text |
id | pubmed-9399813 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-93998132022-08-25 Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms Zheng, Yao Wang, Yuqin Yang, Xiaoxi Gao, Jiancao Xu, Gangchun Yuan, Julin Front Microbiol Microbiology The study tested the water purification mechanism of the combination of microorganisms and purification materials via characteristic, enzymatic, and metagenomics methods. At 48 h, the removal rates of total nitrogen, total phosphorous, and Mn chemical oxygen demand in the combination group were 46.91, 50.93, and 65.08%, respectively. The alkaline phosphatase (AKP) activity increased during all times tested in the volcanic rock, Al@TCAP, and exogenous microorganism groups, while the organophosphorus hydrolase (OPH), dehydrogenase (DHO), and microbial nitrite reductase (NAR) activities increased at 36-48, 6-24, and 36-48 h, respectively. However, the tested activities only increased in the combination groups at 48 h. Al@TCAP exhibits a weak microbial loading capacity, and the Al@TCAP removal is primarily attributed to adsorption. The volcanic rock has a sufficient ability to load microorganisms, and the organisms primarily perform the removal for improved water quality. The predominant genera Pirellulaceae and Polynucleobacter served as the sensitive biomarkers for the treatment at 24, 36-48 h. Al@TCAP increased the expression of Planctomycetes and Actinobacteria, while volcanic rock increased and decreased the expression of Planctomycetes and Proteobacteria. The growth of Planctomycetes and the denitrification reaction were promoted by Al@TCAP and the exogenous microorganisms. The purification material addition group decreased the expression of Hyaloraphidium, Chytridiomycetes (especially Hyaloraphidium), and Monoblepharidomycetes and increased at 36-48 h, respectively. Ascomycota, Basidiomycota, and Kickxellomycota increased in group E, which enhanced the nitrogen cycle through microbial enzyme activities, and the growth of the genus Aspergillus enhanced the phosphorous purification effect. Frontiers Media S.A. 2022-08-10 /pmc/articles/PMC9399813/ /pubmed/36033894 http://dx.doi.org/10.3389/fmicb.2022.944366 Text en Copyright © 2022 Zheng, Wang, Yang, Gao, Xu and Yuan. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Zheng, Yao Wang, Yuqin Yang, Xiaoxi Gao, Jiancao Xu, Gangchun Yuan, Julin Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title | Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title_full | Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title_fullStr | Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title_full_unstemmed | Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title_short | Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
title_sort | effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9399813/ https://www.ncbi.nlm.nih.gov/pubmed/36033894 http://dx.doi.org/10.3389/fmicb.2022.944366 |
work_keys_str_mv | AT zhengyao effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms AT wangyuqin effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms AT yangxiaoxi effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms AT gaojiancao effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms AT xugangchun effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms AT yuanjulin effectivemechanismsofwaterpurificationfornitrogenmodifiedattapulgitevolcanicrockandcombinedexogenousmicroorganisms |