Swedish Centre for Resource Recovery, University of Borås, SE 501 90 Borås, Sweden; Department of Chemical and Polymer Engineering, Faculty of Engineering, Lagos State University, Lagos, Nigeria.
Swedish Centre for Resource Recovery, University of Borås, SE 501 90 Borås, Sweden.
Bioresour Technol. 2017 Dec;245(Pt A):549-559. doi: 10.1016/j.biortech.2017.08.081. Epub 2017 Aug 19.
The aim of this work was to study dry anaerobic digestion (dry-AD) of manure bedded with straw using textile-based bioreactor in repeated batches. The 90-L reactor filled with the feedstocks (22-30% total solid) and inoculum without any further treatment, while the biogas produced were collected and analyzed. The digestate residue was also analyzed to check its suitability as bio-fertilizer. Methane yield after acclimatization increased from 183 to 290NmlCH/gVS, degradation time decreased from 136 to 92days and the digestate composition point to suitable bio-fertilizer. The results then used to carry out economical evaluation, which shows dry-AD in textile bioreactors is a profitable method of handling the waste with maximum payback period of 5years, net present value from $7,000 to $9,800,000 (small to large bioreactors) with internal rate of return from 56.6 to 19.3%.
本工作旨在研究使用纺织生物反应器进行秸秆铺垫的粪便干法厌氧消化（dry-AD）。90-L 反应器填充了未经任何进一步处理的原料（总固体含量为 22-30%）和接种物，同时收集和分析产生的沼气。还分析了消化残渣，以检查其作为生物肥料的适宜性。适应后的甲烷产量从 183 增加到 290NmlCH/gVS，降解时间从 136 天减少到 92 天，消化物组成表明适合作为生物肥料。然后将结果用于进行经济评估，结果表明，纺织生物反应器中的干法 AD 是一种处理废物的盈利方法，最大投资回收期为 5 年，从小型到大型生物反应器的净现值为 700 万美元至 980 万美元，内部收益率为 56.6%至 19.3%。
