Mesophilic and Thermophilic Anaerobic Digestion of Model Kitchen Waste with Variation of Fat Content,Chemie Ingenieur Technik

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Mesophilic and Thermophilic Anaerobic Digestion of Model Kitchen Waste with Variation of Fat Content
Chemie Ingenieur Technik ( IF 1.5 ) Pub Date : 2020-07-29 , DOI: 10.1002/cite.201900094
Elena Sobon‐Mühlenbrock ₁ , Markus Schlienz ₁ , Manfred Greger ₁

Affiliation

Anaerobic digestion of model kitchen waste (MKW) produced on basis of real kitchen waste (KW) is studied in batch tests. The impact of fat content of three MKWs (14.7 %, 23 %, and 27.2 % rapeseed oil content) on the biogas production at mesophilic and thermophilic conditions and two loadings is examined. The loading of 5 g_VSL⁻¹ leads to fast degradation under both temperature modes and the volume of biogas produced is only weakly correlated to the oil content. For the loading of 25 g_VSL⁻¹ a strong retardation of biogas production, high concentration of volatile fatty acids and no correlation of oil content is observed.

中文翻译：

模型厨房废物的中温和厌氧厌氧消化，脂肪含量变化

在批量测试中研究了基于真实厨房垃圾（KW）产生的模型厨房垃圾（MKW）的厌氧消化。研究了在中温和嗜热条件下以及两种负荷下，三种MKW（14.7％，23％和27.2％菜籽油含量）的脂肪含量对沼气生产的影响。5 g _VS L ^-1的加载量在两种温度模式下均导致快速降解，并且产生的沼气量仅与含油量弱相关。对于25 g _VS L ^-1的装载量，强烈观察到沼气产生的延迟，高浓度的挥发性脂肪酸和油含量的相关性。

更新日期：2020-07-29

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