Anaerobic digestion of agro-industrial wastes of Bangladesh: Influence of total solids content

Q2 Engineering

Engineering in Agriculture, Environment and Food Pub Date : 2019-10-01 DOI:10.1016/j.eaef.2019.10.002

Md.Anisur Rahman , Chayan Kumer Saha , Lu Feng , Henrik B. Møller , Md.Monjurul Alam

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引用次数: 7

Abstract

Producing bioenergy from the anaerobic digestion (AD) of poultry droppings (PD), press mud (PM), sugarcane bagasse (SB) and sugar beet roots and tops (SRT) could be an effective source of fuel and energy for processing sugar from sugar beet and sugarcane and for reviving and making the sugar industries profitable in Bangladesh. The total solids (TS) content is crucial for an optimum performance of the AD process. In this study, batch assays were conducted to determine the optimal TS contents on the mesophilic AD of PD, PM, SB and SRT with TS contents of 5, 8, 11 and 15%, respectively. The highest biochemical methane potential (BMP) were found 254, 121, 205 and 23 NL kg⁻¹VS for PD, PM, SB and SRT after digestion for 90 days at TS content of 11%, 15%, 11% and 8%, respectively. The results indicate that the initial TS influenced the AD performance significantly and modeling showed that the optimal initial TS content for AD of PD, PM and SB ranged between 12 and 13%.The only exception was SRT, where an initial TS content of 8% is recommended.

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孟加拉国农业工业废物的厌氧消化:总固体含量的影响

从家禽粪便(PD)、压榨泥(PM)、甘蔗渣(SB)和甜菜根茎(SRT)的厌氧消化(AD)中生产生物能源，可能是加工甜菜和甘蔗制糖的有效燃料和能源来源，并可使孟加拉国的制糖工业恢复活力并实现盈利。总固形物(TS)含量对AD工艺的最佳性能至关重要。本研究通过批量试验，确定了TS含量分别为5%、8%、11%和15%的PD、PM、SB和SRT在中温AD上的最佳TS含量。在TS含量为11%、15%、11%和8%的条件下，消化90 d后，PD、PM、SB和SRT的生化甲烷势(BMP)分别为254、121、205和23 NL kg−1VS。结果表明，初始TS对AD性能有显著影响，建模结果表明，PD、PM和SB对AD的最佳初始TS含量在12 ~ 13%之间。唯一的例外是SRT，建议初始TS含量为8%。

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来源期刊

Engineering in Agriculture, Environment and Food Engineering-Industrial and Manufacturing Engineering

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.