采用机械、化学、热和联合预处理强化工业废物与城市污水污泥厌氧共消化产沼气。
Enhancing biogas production of anaerobic co-digestion of industrial waste and municipal sewage sludge with mechanical, chemical, thermal, and hybrid pretreatment.
机构信息
Department of Environmental Engineering, Mersin University, Mersin 33343, Turkey.
Department of Environmental Engineering, Mersin University, Mersin 33343, Turkey.
出版信息
Bioresour Technol. 2021 Nov;340:125688. doi: 10.1016/j.biortech.2021.125688. Epub 2021 Jul 30.
This study presents the effect of mechanical, chemical, thermal, and hybrid pretreatment on anaerobic digestion of fruit-juice industrial waste (FW) co-digested with municipal sewage sludge (MSS). The pretreatment of the substrates with ultrasonication, microwave, weak alkali-acid caused an increase in cumulative biogas production of approximately 20.9, 14.9, 8.1, and 5.2%, respectively. Beside this, thermal and strong acid-alkali pretreatment reduced biogas production. The highest cumulative biogas and methane yield was increased with hybrid pretreatment which contains ultrasonication (US) and alkali (AL) pretreatment by 36% and 49%, respectively. Also, compared to untreated mixture, the soluble COD, carbohydrate, and protein removal efficiencies were increased from 42.6% to 65.6%, 65.1% to 86.6%, and 17.3% to 62.4%, respectively for US-AL pretreatment. The kinetic parameters of cumulative biogas production for the selected reactors were further estimated with Monod, Cone, and Transference Function models.
本研究探讨了机械、化学、热和混合预处理对果汁工业废物（FW）与城市污水污泥（MSS）共消化的厌氧消化的影响。对底物进行超声、微波、弱酸弱碱预处理，分别使累积沼气产量增加了约 20.9%、14.9%、8.1%和 5.2%。此外，热和强酸强碱预处理会降低沼气产量。采用超声（US）和碱（AL）预处理的混合预处理可使累积沼气和甲烷产量分别提高 36%和 49%。与未处理的混合物相比，US-AL 预处理可使可溶性 COD、碳水化合物和蛋白质的去除效率分别从 42.6%提高到 65.6%、65.1%提高到 86.6%和 17.3%提高到 62.4%。进一步用 Monod、Cone 和传递函数模型对选定反应器的累积沼气产量的动力学参数进行了估算。
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