Accelerated iron cycle inducing molecular oxygen activation for deep oxidation of aromatic VOCs in MoS2 co-catalytic Fe3+/PMS system

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 309, С. 121235 - 121235

Опубликована: Фев. 22, 2022

Язык: Английский

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Additives and methods for the mitigation of methane emission from stored liquid manure

Biosystems Engineering, Год журнала: 2023, Номер 229, С. 209 - 245

Опубликована: Апрель 21, 2023

The storage of liquid manure (slurry) is a major source methane (CH4) and thus contributes significantly to the climate impact agriculture. necessity store slurry in barns tanks at different seasons has led increasing research mitigation CH4 emissions from management chain. In this review, holistic view strategies targeting pits classified based on mechanism interaction (physical, chemical, biological) with their efficiency presented. Also, combination chemical additives other methods discussed. key include cover, solid–liquid separation, acidification, antimicrobial agents, aeration. Among various methods, acidification pH 5.5 acts as benchmark since it achieves reduction emission range 95–99% 65–99% stored pig cattle slurry, respectively. Other treatments such agents oxidants also reduce wide depending dosage. Further, physical yields cumulative or synergistic effect reducing emission. This review identifies significant factors that influence additives, which helps mitigate storage. Based efficiency, good choice technology storages. would fit well frequent removal barn outside cold regions.

Язык: Английский

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The fundamentals, progress, and perspectives of transition-metal dichalcogenides (TMDs) applied in advanced oxidation processes

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149595 - 149595

Опубликована: Фев. 13, 2024

Язык: Английский

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Wet scrubbing coupled with advanced oxidation process for removal of chlorobenzene: a study of performance and mechanisms

Environmental Research, Год журнала: 2025, Номер 268, С. 120779 - 120779

Опубликована: Янв. 6, 2025

Язык: Английский

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Understanding methane emission from stored animal manure: A review to guide model development

Journal of Environmental Quality, Год журнала: 2021, Номер 50(4), С. 817 - 835

Опубликована: Май 22, 2021

National inventories of methane (CH4 ) emission from manure management are based on guidelines the Intergovernmental Panel Climate Change using country-specific factors. These calculations must be simple and, consequently, effects practices and environmental conditions only crudely represented in calculations. The intention this review is to develop a detailed understanding necessary for developing accurate models calculating CH4 liquid manure, with particular focus microbiological conversion organic matter . Themes discussed (a) environment; (b) production processes modeling perspective; (c) development adaptation methanogenic communities; (d) mass electron conservation; (e) steps limiting production; (f) inhibition methanogens; (g) temperature (h) limits existing estimation approaches. We conclude that model include calculation microbial response variations temperature, substrate availability age, system, because these variables substantially affect production. Methane can reduced by manipulating key through procedures, may taken into account including component model. When new it important reasonably algorithms adaptation. This presents concepts ideas how carried out. A need better quantification hydrolysis kinetics identified, importance short- long-term highlighted.

Язык: Английский

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Porous graphitized carbon-supported FeOCl as a bifunctional adsorbent-catalyst for the wet peroxide oxidation of chlorinated volatile organic compounds: Effect of mesopores and mechanistic study

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 330, С. 122659 - 122659

Опубликована: Март 20, 2023

Язык: Английский

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Low-Dose Acidification as a Methane Mitigation Strategy for Manure Management

ACS Agricultural Science & Technology, Год журнала: 2022, Номер 2(3), С. 437 - 442

Опубликована: Май 11, 2022

Excreta from housed animals are typically stored before land application, and storage is an important point source of CH4, N gases, odor. This study explored acidification as a strategy for greenhouse gas (GHG) mitigation, specifically the potential to reduce acid dose improve cost-effectiveness minimize environmental impacts. Pig slurry was with five doses concentrated sulfuric [1.2–6.0 kg (m3 slurry)−1] 63 days. Emissions CH4 NH3 were reduced by 46–96% 33–78%, respectively, increase in dose. Odorant emissions, dominated 4-methyphenol H2S, strongly suppressed acidification. Below pH 6, methanogen inhibition most likely due undissociated VFAs, above could involve competition sulfate reducers H2S. If 1, 3, or 10 treatments needed, annual costs GHG mitigation across 28–47, 44–57, 93–134 € (ton CO2 equivalents)−1, respectively. With 1 3 treatments, cost-effective 2.1 m–3, 3.2 m–3 treatments. suggests that low-dose viable mitigation.

Язык: Английский

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Simple Management Changes Drastically Reduce Pig House Methane Emission in Combined Experimental and Modeling Study

Environmental Science & Technology, Год журнала: 2023, Номер 57(9), С. 3990 - 4002

Опубликована: Фев. 21, 2023

Reducing methane from livestock slurry is one of the quickest ways to counteract global warming. A straightforward strategy reduce retention time inside pig houses by frequent transfer outside storages, where temperature and therefore microbial activity are lower. We demonstrate three removal strategies in a year-round continuous measurement campaign. Slurry funnels, trays, weekly flushing reduced emission 89, 81, 53%, respectively. funnels trays ammonia 25–30%. An extended version anaerobic biodegradation model (ABM) was fitted validated using barn measurements. It then applied for predicting storage shows that there risk negating reductions due increased storage. Therefore, we recommend combining with digestion pre-storage or mitigation technologies such as acidification. However, even without technologies, predicted net reduction following at least 30% all strategies.

Язык: Английский

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Rumen microbiota succession throughout the perinatal period and its association with postpartum production traits in dairy cows: A review

Animal nutrition, Год журнала: 2024, Номер 18, С. 17 - 26

Опубликована: Май 6, 2024

The transition period for dairy cows usually refers to the 3 weeks pre-calving post-calving. During this period, undergo metabolic and physiological adaptations because of their susceptibility infectious diseases. Poor feeding management under these circumstances may adversely affect health subsequent production performance cows. Owing long-term adaptation evolution, rumen has become a unique ecosystem inhabited by complex microbial community closely associated with its natural host. Dietary components are metabolized microbiota, volatile fatty acids protein products can be used as precursor substances synthesizing meat milk components. successful perinatal includes changes in diet, physiology, microbiota. Rumen profiles have been confirmed heritable repairable; however, adverse composition, host digestion metabolism, well postpartum traits certain period. Preliminary evidence indicates close relationship between microbiota animal performance. Therefore, microbes during intrinsic links phenotypic need better understood optimize ruminants.

Язык: Английский

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Highly efficient reduction of ammonia emissions from livestock waste by the synergy of novel manure acidification and inhibition of ureolytic bacteria

Environment International, Год журнала: 2023, Номер 172, С. 107768 - 107768

Опубликована: Янв. 21, 2023

The global livestock system is one of the largest sources ammonia emissions and there an urgent need for mitigation. Here, we designed constructed a novel strategy to abate via manure acidification based on synthetic lactic acid bacteria community (LAB SynCom). LAB SynCom possessed wide carbon source spectrum pH profile, high adaptability environment, capability generating acid. mitigation was optimized test performance by adjusting inoculation ratio adding frequency source, which contributed total reduction efficiency 95.5 %. Furthermore, 16S rDNA amplicon sequencing analysis revealed that treatment reshaped microbial structure. Importantly, 22 ureolytic genera urea hydrolysis were notably inhibited during process. These findings provide new insight into conversion from ammonium ions inhibition exerted synergistic effect This work systematically developed mitigate waste, crucial step forward traditional environmental-friendly acidification.

Язык: Английский

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