用于沼气生产的菠萝加工废弃物青贮

Ensilage of pineapple processing waste for methane generation.

作者信息

Rani D Swaroopa, Nand Krishna

机构信息

Department of Food Microbiology, Central Food Technological Research Institute, Mysore-570 013, India.

出版信息

Waste Manag. 2004;24(5):523-8. doi: 10.1016/j.wasman.2003.10.010.

DOI:10.1016/j.wasman.2003.10.010

PMID:15120436

Abstract

Pineapple peel wastes, which are seasonal, comprise of peels and rags. Their disposal poses a serious environmental pollution problem. Since pineapple peel is rich in cellulose, hemicellulose and other carbohydrates it was found to be a potential substrate for methane generation by anaerobic digestion. Ensilaging of pineapple peel resulted in the conversion of 55% carbohydrates into volatile fatty acids. The ensilage of pineapple processing wastes reduced the biological oxygen demand by 91%. Biogas digester fed with ensilaged pineapple peel resulted in the biogas yield of 0.67 m3/kg volatile solids (VS) added with methane content of 65% whereas fresh and dried pineapple peels gave biogas yields of 0.55% and 0.41 m3/kg VS added and methane content of 51% and 41% respectively.

摘要

菠萝皮废料具有季节性，由果皮和碎渣组成。它们的处理带来了严重的环境污染问题。由于菠萝皮富含纤维素、半纤维素和其他碳水化合物，因此被发现是厌氧消化产生甲烷的潜在底物。菠萝皮青贮导致55%的碳水化合物转化为挥发性脂肪酸。菠萝加工废料的青贮使生物需氧量降低了91%。用青贮菠萝皮喂养的沼气池，添加的挥发性固体（VS）每千克产生的沼气产量为0.67立方米，甲烷含量为65%，而新鲜和干燥的菠萝皮添加的VS每千克产生的沼气产量分别为0.55立方米和0.41立方米，甲烷含量分别为51%和41%。