Dual functionalities of inexpensive Mn/TiO2 catalyst to produce oxychar for ammonia capture

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116318 - 116318

Published: March 1, 2025

Language: Английский

Mechanistic insights into oxychar’ s role in mitigating ammonia volatilization from fertilised alkaline soils

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 979, P. 179502 - 179502

Published: April 27, 2025

Mitigating ammonia (NH3) volatilization from fertilised alkaline soils is crucial for promoting environmental sustainability and safeguarding public health. In this study, "oxychar" was prepared an agricultural waste via a low-temperature partial-oxidation (LTPO) process under oxygen-sufficient environment. The optimum modification temperature 220 °C duration of 3 h, yielding maximum NH3 uptake 76.4 mg/g by oxychar. enhanced adsorption capacity stability are attributed to the increased surface oxygen-containing functional groups (OCFGs) that act as sites, well presence ultra-micropores facilitate effective trapping. When applying optimised oxychar 21-day incubation studies, it found cumulative reduced 76.3 %-91.6 % with application rates 1 %-3 %, compared urea treatments. Soil property microbial community analyses further indicate promotes hydrolysis reduction nitrate ammonium dissimilation (DNRA) processes while inhibiting nitrification modulating communities, resulting in higher lower levels soil treatment. However, enriched cannot volatilize freely due chemisorption ionic covalent bonds, respectively. Introducing could be promising approach mitigate ensure food security sustainability.

Language: Английский

Proximate Composition and Nutritional Indices of Fenugreek Under Salinity Stress: The Role of Biocyclic Vegan and Other Organic Fertilization Systems in Forage Quality

Crops, Journal Year: 2025, Volume and Issue: 5(3), P. 24 - 24

Published: May 1, 2025

Fenugreek (Trigonella foenum-graecum L.) is an emerging forage crop known for its high nutritional value and adaptability to diverse environmental conditions, making it a promising alternative in sustainable livestock feeding systems the Mediterranean region. A field experiment was established at Agricultural University of Athens during growing season 2020–2021 split-plot design with five fertilization treatments (Biocyclic-Vegan Humus Soil; BHS, Farmyard Manure; FMA, Organic Compost; OCP, Inorganic Fertilizer; IFZ, No Treatment Control; CTRL, two main salinity (High Salinity Level; HSL, Normal NSL). The Forage Quality Index (FQI) highest under BHS NSL (45) lowest CTRL HSL (32), emphasizing positive impact organic fertilization. Crude ash (CA) higher (9.7%), OCP IFZ performing best, while reduced CA CTRL. fiber (CF) increased salinity, particularly whereas FMA showed CF (15.8%), enhancing digestibility. Total fat (TF) (5.8%) (4.0%), underscoring importance balanced maintaining content. These results highlight potential amendments improve nutrient availability, digestibility, overall feed value.

Language: Английский