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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Mesophilic batch anaerobic co-digestion of fruit-juice industrial waste and municipal waste sludge: Process and cost-benefit analysis
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Mesophilic batch anaerobic co-digestion of fruit-juice industrial waste and municipal waste sludge: Process and cost-benefit analysis

机译：果汁工业废物和城市垃圾污泥的中温分批厌氧消化：过程和成本效益分析

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摘要

The feasibility of anaerobic co-digestion of two juice-based beverage industrial wastes, screen cake (SC) and thickened waste activated sludge (TWAS), along with municipal sludge cake (MC) was investigated. Experiments were conducted in twenty mesophilic batch 160 ml serum bottles with no inhibition occurred. The statistical analysis proved that the substrate type had statistically significant effect on both ultimate biogas and methane yields (P = 0.0003 < 0.05). The maximum and minimum ultimate cumulative methane yields were 890.90 and 308.34 mL/g-VS_(removed) from the digesters containing only TWAS and SC as substrate. First-order reaction model well described VS utilization in all digesters. The first 2-day and 10-day specific biodegradation rate constants were statistically higher in the digesters containing SC (P = 0.004 < 0.05) and MC (P = 0.0005 < 0.05), respectively. The cost-benefit analysis showed that the capital, operating and total costs can be decreased by 21.5%, 29.8% and 27.6%, respectively using a co-digester rather than two separate digesters.
机译：研究了两种果汁类饮料工业废料（筛饼（SC）和增稠废物活性污泥（TWAS））以及城市污泥饼（MC）进行厌氧共消化的可行性。实验在20个中温批次的160 ml血清瓶中进行，未发生抑制作用。统计分析证明，底物类型对最终沼气和甲烷产量均具有统计学意义（P = 0.0003 <0.05）。从仅包含TWAS和SC作为底物的蒸煮器中，最大和最小最终累积甲烷产量分别为890.90和308.34 mL / g-VS_（去除）。一阶反应模型很好地描述了所有消化池中VS的利用率。在统计上，含有SC（P = 0.004 <0.05）和MC（P = 0.0005 <0.05）的消化池的前2天和10天特定生物降解率常数在统计学上较高。成本效益分析表明，使用联合消化器而不是使用两个独立的消化池，可以分别降低资本，运营和总成本21.5％，29.8％和27.6％。

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