从粪肥和苋菜中获取沼气的可能性

IF 0.1 Q4 ENGINEERING, MULTIDISCIPLINARY
J. Karaeva, S. Timofeeva
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引用次数: 2

摘要

介绍。生物质的使用可以提高沼气的形成速度及其特定产量。本研究旨在研究甲烷生成动力学,确定最佳消化时间和有机负荷,这是沼气形成工艺过程的主要指标。材料与方法。以奶牛粪便、苋菜生物量为研究对象。利用实验室沼气装置进行了实验研究。使用计算机程序(证书编号2018662045)获得描述沼气形成动力学的修正Gompertz模型。根据所得数据,确定了水力滞留时间和有机负荷率(沼气厂设计中的关键参数)。本文介绍了利用干苋菜生物质进行沼气生成动力学的实验研究结果。建立了Gompertz数学模型。获得了新底物厌氧消化的甲烷池控制参数(水力停留时间和有机负荷率)。讨论与结论。新基质苋菜可使奶牛粪便的特定沼气产量提高52.2%,超声波预处理与草药补剂联合使用可使奶牛粪便的特定沼气产量提高89.1%。最佳水力停留时间值为10 d,有机负荷率为4.1 kg / m3 / d。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Possibilities of Obtaining Biogas from Manure and Amaranth
Introduction. The use of biomass allows increasing the rate of biogas formation and its specific yield. This work aims to study the kinetics of methanogenesis and determine the optimal duration of digestion and organic load, which are the main indicators of the technological process of biogas formation. Materials and Methods. The substrate (dairy manure, biomass of amaranth) was the study object. Experimental studies were carried out using a laboratory biogas plant. The computer program (certificate No. 2018662045) was used to obtain modified Gompertz models describing the kinetics of biogas formation. Based on the obtained data, the hydraulic retention time and organic loading rate (the key parameters in the design of biogas plants were determined). Results. The paper presents the experimental studies results of the biogas formation kinetics when using dry amaranth biomass. The Gompertz mathematical models were obtained. Methane-tank control parameters (hydraulic retention time and organic loading rate) were obtained for anaerobic digestion of a new substrate. Discussion and Conclusion. The use of new co-substrate Amaranthus retroflexus L. allowed increasing the specific biogas yield from dairy manure by 52.2 % and the ultrasonic pre-treatment in combination with the herbal supplement by 89.1 %. The optimal hydraulic retention time value was 10 days and organic loading rate was 4.1 kg of volatile solids per m3 of digester per day.
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来源期刊
Engineering Technologies and Systems
Engineering Technologies and Systems ENGINEERING, MULTIDISCIPLINARY-
自引率
33.30%
发文量
29
审稿时长
12 weeks
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