Airlift bioreactors for bioremediation of water contaminated with hydrocarbons in agricultural regions

IF 1.6 4区工程技术 Q3 Chemical Engineering

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-21 DOI:10.1515/ijcre-2024-0009

E. J. Sandoval-Herazo, Israel Rodríguez-Torres, G. Espinosa-Reyes, M. Lizardi-Jiménez

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引用次数: 0

Abstract

The superficial gas velocity (Ug) values of 1.0, 1.5 and 2.0 cm s−1 showed a diesel consumption of 59.70, 58.20 and 65.20 %, respectively. The productivity of the airlift bioreactors (ALBs) was 0.030, 0.026 and 0.034 g L−1 d−1, respectively. During 10 days of operation, the emulsification index (E 24 %) values for Ug 1.0, 2.0 and 2.0 cm s−1 were 15.79, 15.07 and 12.85 %, respectively. Likewise, an increase in the degradation and suspended solids was observed when increasing the Ug from 1.0 to 2.0 cm s−1 of the ALBs, whereas a decrease in emulsification index E 24 % was observed for an Ug of 2.0 cm s−1. According to the results, the Ug of 2.0 cm s−1 was the most effective for increasing the degradation of diesel and growth of the consortium among the Ug evaluated. Furthermore, the reduction of E 24 % in this Ug suggests that the consortium uses a mixed form of hydrocarbon consumption, both by direct contact and in emulsified form.

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用于对农业区受碳氢化合物污染的水体进行生物修复的气举生物反应器

表层气体速度（Ug）值为 1.0、1.5 和 2.0 厘米/秒-1 时，柴油消耗量分别为 59.70%、58.20%和 65.20%。气提生物反应器（ALB）的生产率分别为 0.030、0.026 和 0.034 g L-1 d-1。在 10 天的运行期间，Ug 1.0、2.0 和 2.0 cm s-1 的乳化指数（E 24 %）值分别为 15.79、15.07 和 12.85 %。同样，当 ALB 的 Ug 值从 1.0 cm s-1 增加到 2.0 cm s-1 时，降解率和悬浮固体增加，而当 Ug 值为 2.0 cm s-1 时，乳化指数 E 24 % 下降。结果表明，在所评估的 Ug 值中，2.0 cm s-1 的 Ug 值对提高柴油降解和菌群生长最有效。此外，在该 Ug 下 E 值减少了 24%，这表明菌群采用混合形式消耗碳氢化合物，既有直接接触形式，也有乳化形式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Chemical Reactor Engineering 工程技术-工程：化工

CiteScore

2.80

自引率

12.50%

发文量

107

审稿时长

3 months

期刊介绍： The International Journal of Chemical Reactor Engineering covers the broad fields of theoretical and applied reactor engineering. The IJCRE covers topics drawn from the substantial areas of overlap between catalysis, reaction and reactor engineering. The journal is presently edited by Hugo de Lasa and Charles Xu, counting with an impressive list of Editorial Board leading specialists in chemical reactor engineering. Authors include notable international professors and R&D industry leaders.