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Oxygenic Denitrification and Anaerob...

Schmitz, Emily V.,

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Oxygenic Denitrification and Anaerobic Digestion: Microbial Processes Addressing Agricultural Pollution /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Oxygenic Denitrification and Anaerobic Digestion: Microbial Processes Addressing Agricultural Pollution // Emily V Schmitz.
作者:	Schmitz, Emily V.,
面頁冊數:	1 electronic resource (161 pages)
附註:	Source: Dissertations Abstracts International, Volume: 86-01, Section: B.
Contained By:	Dissertations Abstracts International86-01B.
標題:	Environmental engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30987751
ISBN:	9798383189528

Oxygenic Denitrification and Anaerobic Digestion: Microbial Processes Addressing Agricultural Pollution /
Schmitz, Emily V.,

Oxygenic Denitrification and Anaerobic Digestion: Microbial Processes Addressing Agricultural Pollution /Emily V Schmitz. - 1 electronic resource (161 pages)

Source: Dissertations Abstracts International, Volume: 86-01, Section: B.

The intensive agricultural production in the Midwest contributes to pollution through nutrient runoff and climate change via greenhouse gas emissions, negatively impacting both human and environmental health. The main pollutant from nutrient runoff is nitrate. The main greenhouse gases of concern are nitrous oxide and methane. Leveraging microbial processes can be an effective and sustainable way to address agricultural pollution.This work facilitates finding and potentially stimulating oxygenic denitrification, a unique nitrogen cycling process currently overlooked in agricultural settings, to better inform its use in nitrate, nitrous oxide, and methane mitigation strategies. This work demonstrated that Iowa agricultural soils harbored more diverse and abundant nod genes, biomarkers for oxygenic denitrification, than freshwater sediments. Elevated nod abundance due to increased soil saturation in the environment and due to ample nitrogen and methane in laboratory experiments was also demonstrated.Anaerobic digestion is another underutilized microbial-driven technology that addresses agricultural pollution by turning waste into valuable resources through the production and capturing of methane. We expanded the potential waste sources that can be input into this system by demonstrating the feasibility of co-digesting industrial organics with cattle manure digestate. Furthermore, by characterizing the function and identity of the microbes performing this process, we enabled more targeted and informed decision-making for more efficient digestion. Overall, this thesis positively contributes to knowledge about microbial processes that can be leveraged to inform agriculture mitigation strategies and technologies.

English

ISBN: 9798383189528Subjects--Topical Terms:

548583
Environmental engineering.
Subjects--Index Terms:

Agricultural pollution

Oxygenic Denitrification and Anaerobic Digestion: Microbial Processes Addressing Agricultural Pollution /
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520 $a The intensive agricultural production in the Midwest contributes to pollution through nutrient runoff and climate change via greenhouse gas emissions, negatively impacting both human and environmental health. The main pollutant from nutrient runoff is nitrate. The main greenhouse gases of concern are nitrous oxide and methane. Leveraging microbial processes can be an effective and sustainable way to address agricultural pollution.This work facilitates finding and potentially stimulating oxygenic denitrification, a unique nitrogen cycling process currently overlooked in agricultural settings, to better inform its use in nitrate, nitrous oxide, and methane mitigation strategies. This work demonstrated that Iowa agricultural soils harbored more diverse and abundant nod genes, biomarkers for oxygenic denitrification, than freshwater sediments. Elevated nod abundance due to increased soil saturation in the environment and due to ample nitrogen and methane in laboratory experiments was also demonstrated.Anaerobic digestion is another underutilized microbial-driven technology that addresses agricultural pollution by turning waste into valuable resources through the production and capturing of methane. We expanded the potential waste sources that can be input into this system by demonstrating the feasibility of co-digesting industrial organics with cattle manure digestate. Furthermore, by characterizing the function and identity of the microbes performing this process, we enabled more targeted and informed decision-making for more efficient digestion. Overall, this thesis positively contributes to knowledge about microbial processes that can be leveraged to inform agriculture mitigation strategies and technologies.
546 $a English
590 $a School code: 0096
650 4 $a Environmental engineering. $3 548583
650 4 $a Climate change. $2 bicssc $3 2079509
650 4 $a Microbiology. $3 536250
650 4 $a Agricultural engineering. $3 3168406
653 $a Agricultural pollution
653 $a Anaerobic digestion
653 $a Bioremediation
653 $a Microbiomes
653 $a Oxygenic denitrification
690 $a 0775
690 $a 0404
690 $a 0543
690 $a 0410
690 $a 0539
710 2 $a The University of Iowa. $b Civil & Environmental Engineering. $e degree granting institution. $3 3824504
720 1 $a Just, Craig $e degree supervisor.
720 1 $a Mattes, Timothy $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 86-01B.
790 $a 0096
791 $a Ph.D.
792 $a 2024
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