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Valorization of pineapple peel and poultry manure for clean energy generation
Food and Energy Security ( IF 4.0 ) Pub Date : 2021-05-05 , DOI: 10.1002/fes3.228 Samuel O. Dahunsi 1 , Joshua O. Ogunwole 2 , Abimbola A. Owoseni 1 , Godwin O. Olutona 3 , Yewande T. Nejo 1 , Oluwatosin E. Atobatele 4
Food and Energy Security ( IF 4.0 ) Pub Date : 2021-05-05 , DOI: 10.1002/fes3.228 Samuel O. Dahunsi 1 , Joshua O. Ogunwole 2 , Abimbola A. Owoseni 1 , Godwin O. Olutona 3 , Yewande T. Nejo 1 , Oluwatosin E. Atobatele 4
Affiliation
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The quest for renewable energy generation is fast increasing globally due to environmental degradation by fossil fuels. The energy production from the anaerobic codigestion of pineapple peels (PPs) and poultry manure (PM) was assessed in the present study. Prior to digestion, the PPs were pretreated using a strong acid (sulfuric acid) and a low-cost mild alkali hydrogen peroxide (H2O2) which was prepared via the adjustment of the pH of H2O2 to 11.5 by adding solution of 5 M NaOH. The physicochemical and structural parameters of the biomass, as well as microbial composition, were evaluated by using standard methodologies, while all structural changes to the biomass after pretreatment were determined using the Fourier transform infrared spectra. The application of alkaline H2O2 pretreatment removed 71.34% of lignin, reduced hemicellulose by 61%, but increased the cellulose content by 39%. The alkaline pretreated pineapple peel (Al-P PP) was able to produce about 91% more biogas than the acid pretreated pineapple peel (Ac-P PP) and 36% more than the two untreated biomass samples. The results of the economic assessment of pretreatment also showed that investment into the use of H2O2 for pretreatment is economically feasible with high net thermal and electrical energy gain, while that of acid pretreatment results in loses. Therefore, alkaline pretreatment application to PPs prior to digestion is hereby solicited in the biotechnological conversion of PPs/wastes for biogas and quality digestate which can be used as biofertilizers or soil enhancers especially in those regions where pineapple production is enormous.
中文翻译：
菠萝皮和家禽粪便用于清洁能源发电的价值
由于化石燃料导致环境退化，全球对可再生能源发电的需求正在迅速增加。本研究评估了菠萝皮 (PPs) 和家禽粪便 (PM) 的厌氧共消化产生的能量。在消化之前，PPs 使用强酸（硫酸）和低成本的弱碱过氧化氢（H 2 O 2）进行预处理，后者是通过调节 H 2 O 2的 pH 值制备的加入 5 M NaOH 溶液至 11.5。通过使用标准方法评估生物质的物理化学和结构参数以及微生物组成，而使用傅里叶变换红外光谱确定预处理后生物质的所有结构变化。碱性H 2 O 2预处理的应用去除了71.34%的木质素，减少了61%的半纤维素，但增加了39%的纤维素含量。碱性预处理的菠萝皮 (Al-P PP) 能够比酸预处理的菠萝皮 (Ac-P PP) 多产生约 91% 的沼气，比两个未经处理的生物质样品多 36%。预处理的经济评估结果还表明，投资于 H 2 O 2的使用预处理在经济上是可行的，具有较高的净热能和电能增益，而酸预处理会导致损失。因此，在将 PPs/废物转化为沼气和优质沼渣的生物技术转化过程中，在消化前对 PPs 进行碱预处理，特别是在菠萝产量巨大的地区，可用作生物肥料或土壤改良剂。
更新日期：2021-05-05
中文翻译：
菠萝皮和家禽粪便用于清洁能源发电的价值
由于化石燃料导致环境退化，全球对可再生能源发电的需求正在迅速增加。本研究评估了菠萝皮 (PPs) 和家禽粪便 (PM) 的厌氧共消化产生的能量。在消化之前，PPs 使用强酸（硫酸）和低成本的弱碱过氧化氢（H 2 O 2）进行预处理，后者是通过调节 H 2 O 2的 pH 值制备的加入 5 M NaOH 溶液至 11.5。通过使用标准方法评估生物质的物理化学和结构参数以及微生物组成，而使用傅里叶变换红外光谱确定预处理后生物质的所有结构变化。碱性H 2 O 2预处理的应用去除了71.34%的木质素，减少了61%的半纤维素，但增加了39%的纤维素含量。碱性预处理的菠萝皮 (Al-P PP) 能够比酸预处理的菠萝皮 (Ac-P PP) 多产生约 91% 的沼气，比两个未经处理的生物质样品多 36%。预处理的经济评估结果还表明，投资于 H 2 O 2的使用预处理在经济上是可行的，具有较高的净热能和电能增益，而酸预处理会导致损失。因此，在将 PPs/废物转化为沼气和优质沼渣的生物技术转化过程中，在消化前对 PPs 进行碱预处理，特别是在菠萝产量巨大的地区，可用作生物肥料或土壤改良剂。
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