Influence and its mechanism of temperature variation in a muffle furnace during calcination on the adsorption performance of rod-like MgO to Congo red

Zheng, Yuhua; Cao, Liyun; Xing, Gaoxuan; Bai, Zongquan; Shen, Haoming; Huang, Jianfeng; Zhang, Zhiping

doi:10.1007/s11706-018-0427-y

Cited by 3 publications

(1 citation statement)

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“…Consequently, it is important to mention that the results obtained from the ashes burned in the muffle may not necessarily reflect the actual conditions during a real combustion [36]. In the muffle furnace, the temperature is kept constant through the entire process, which may not be the case in a real combustion scenario where temperature fluctuations can occur as explained by Zheng et al [37] (i.e., thermal shocks by the addition of fresh material, the production of combustion by-products and fumes or external factors). Therefore, caution must be taken when interpreting these results and applying them to real or close to real conditions.…”

Section: Effect Of Combustion Temperature On Ash P Releasementioning

confidence: 99%

Phosphorus Release Dynamics from Ashes during a Soil Incubation Study: Effect of Feedstock Characteristics and Combustion Conditions

Singla Just,

Binder,

Guerra-Gorostegi

et al. 2024

Agronomy

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Recovering phosphorus (P) through combustion from waste streams, like wastewater sludge and animal manure, offers a promising solution. This research explores the P release patterns in different ashes derived from secondary raw materials, using a long-term soil incubation lasting 160 days. The study evaluated the P release dynamics in five types of ashes from enhanced biological phosphorus removal (EBPR) systems and pig slurry burned at different temperatures. According to the results, a primary effect was observed on P bioavailability during the initial incubation period. All tested ashes release more than 50% of the total P applied between days 5 and 10. Ashes from EBPR exhibited higher P release than those from pig manure, indicating ash origin as a key factor in P release. Additionally, combustion temperature was crucial, with higher temperatures resulting in increased P release rates. Furthermore, the Pearson correlation revealed a strong relationship between the characteristics of the ashes and the amount of P release. Overall, these findings suggest that ashes could be a valuable P-source for agriculture avoiding the process of wet chemical P extraction, thus reducing both economic and environmental costs.

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Section: Effect Of Combustion Temperature On Ash P Releasementioning

confidence: 99%