Mesophilic anaerobic co-digestion of aloe peel waste with dairy manure in the batch digester: Focusing on mixing ratios and digestate stability

Huang, Xin; Yun, Sining; Zhu, Jiang; Du, Tingting; Zhang, Chen; Li, Xue

doi:10.1016/j.biortech.2016.06.070

Cited by 120 publications

(43 citation statements)

References 38 publications

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“…The codigestion of APW with DM increased the biogas and methane yield by 11.7-28.6 and 18.9-43.7%, respectively, compared with the mono-digestion of APW. However, the ratio of 3:1 for Aloe peel waste and dairy manure (APW/DM) depicted the optimal performance leading to the highest cumulative methane yield (195.1 mL g −1 VS) (Huang et al, 2016). Figure 6 showed the results of cumulative biogas production for different ratios for giant reed and poultry.…”

Section: Effect Of Different Biomass Ratiosmentioning

confidence: 99%

Effect of Pretreatment and Substrate Ratios in Biorefinery Employing Co-digestion of Plant Biomass and Poultry Waste

et al. 2019

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The current study investigated the optimization of biogas generation during co-digestion of various plant biomasses with poultry waste at different ratios and pretreatment of plant biomass. The biochemical tests were executed at 35 • C in a thermostat. Water hyacinth was found as the suitable substrate for mono and co-digestion due to high volatile solids (VS) and total soluble contents. However, poultry waste was appropriate only if it was co-digested with other biomasses. The experiments evaluating biogas generation at different ratios of plant biomasses and poultry waste demonstrated that water hyacinth and poultry (50:50) produced 262 mL g −1 VS, giant reed and poultry (80:20) produced 235 mL g −1 VSwhile maize and poultry (60:40) generated 193 mL g −1 VS. However, the pretreating the plant biomass with either Fenton's or Fenton's plus ultrasonic had no effect on biogas generation. The volumes of biogas generated after various pretreatment were low as compared to condition without pretreatment. The codigestion can be classified as WH:P (50:50 > GR:P (80:20) > M:P (60:40). So, these ratios can be applied at decentralized scale for better waste management and biogas generation due to balanced C:N ratio of plant biomass and poultry manure. Co-digestion can also be applied at large scale with optimized ratio in Pakistan and other developing countries for biogas generation and waste management and reduce the methane emission through landfills.

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Section: Effect Of Different Biomass Ratiosmentioning

confidence: 99%

Effect of Pretreatment and Substrate Ratios in Biorefinery Employing Co-digestion of Plant Biomass and Poultry Waste

et al. 2019

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“…For inoculum, we used 30 liters of domestic wastewater from a septic tank. The batch experiment was conducted for an HRT of 30 days at mesophilic temperature with continuous parameter monitoring to observe the influence of the temperature and pH on biogas production [15,17,20,21,40,45,46,[50][51][52][53]. The reactor operated under mesophilic conditions with leachate recirculation.…”

Section: Experiments Nomentioning

confidence: 99%

Pilot-Scale Anaerobic Co-Digestion of the OFMSW: Improving Biogas Production and Startup

et al. 2018

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This paper presents experimental results regarding anaerobic co-digestion of the organic fraction of municipal solid waste and fruit and vegetable waste in order to establish the efficiency of a 2 m3 volume pilot plant in terms of biogas and methane yield and stability of the process. The research study presents the feasibility of developing anaerobic digestion as an effective method for municipal solid waste management. The experiments were conducted in mesophilic conditions (35 °C). Domestic waste water was used as inoculum. The results showed that the inoculum presence, temperature, and pH control, were essential in order to improve biogas production and its composition. Using liquid inoculum, the CH4 percentage in the biogas oscillated between 44% and 51%, and the biogas production from 0.504 and 0.6 m3/day. Compared to domestic waste water, animal manure increased the CH4 concentration in biogas (up to 63%), while the daily biogas production increased by 26% and varied from 0.693 to 0.786 m3. The cumulative biogas production at the end of the experiments were 11.7 m3 and 15.89 m3, respectively. Using inoculum and co-digestion, the plant startup time was significantly reduced, the total solids content decreased from 22.7% to 19.8%, while the volatile solids decreased from 37.6% to 31.2%.

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“…Evidently, the abundance of several ACD studies in the literatures reinforces the current research interest in the co-digestion approach. Examples of such studies include the researches by Li et al [9], Huang et al [10] and González et al [11]. Li et al [9] investigated the ACD of chicken processing waste and Miscanthus and ACD of chicken manure and sea grass for different mix ratios by mass of 1:1, 1:3 and 3:1.…”

Section: Introductionmentioning

confidence: 99%

“…These synergizing effects were manifested by enhanced biomethane potentials in all co-digestion substrate mixtures investigated relative to the predicted biomethane potentials when the substrates were degraded in the absence of synergizing effects. The study undertaken by Huang et al [10] assessed biomethane potentials from the ACD of aloe peel waste and dairy manure for different substrate mix ratios by mass of 1:0, 3:1, 1:1, 1:3 and 0:1. They demonstrated the presence of synergizing effects, manifested as higher biomethane potentials recorded when the substrates were co-digested, relative to the predicted biomethane potential when the substrates were digested independently of the synergizing effects.…”

Section: Introductionmentioning

confidence: 99%

Prognostic Assessment of the Viability of Hydrothermal Liquefaction as a Post-Resource Recovery Step after Enhanced Biomethane Generation Using Co-Digestion Technologies

2018

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In line with global efforts at encouraging paradigm transitions from waste disposal to resource recovery, the anaerobic co-digestion of substrates of wet hydrolyzed meat processing dissolved air flotation sludge and meat processing stock yard waste was investigated in the present study. It was demonstrated that the co-digestion of these substrates leads to the introduction of co-digestion synergizing effects. This study assessed biomethane potentials of the co-digestion of different substrate mixtures, with the preferred substrate mixture composed of stockyard waste and wet hydrolyzed meat processing dissolved air flotation sludge, present in a 4:1 ratio on a volatile solid mass basis. This co-digestion substrate mix ratio presented an experimentally determined cumulative biomethane potential of 264.13 mL/gVSadded (volatile solid). The experimentally determined cumulative biomethane potential was greater than the predicted maximum cumulative biomethane potential of 148.4 mL/gVSadded, anticipated from a similar substrate mixture if synergizing effects were non-existent. The viability of integrating a downstream hydrothermal liquefaction processing of the digestate residue from the co-digestion process, for enhanced resource recovery, was also initially assessed. Assessments were undertaken via the theoretical based estimation of the yields of useful products of biocrude and biochar obtainable from the hydrothermal liquefaction processing of the digestate residue. The environmental sustainability of the proposed integrated system of anaerobic digestion and hydrothermal liquefaction technologies was also initially assessed. The opportunity for secondary resource recovery from the digestate, via the employment of the hydrothermal liquefaction process and the dependence of the environmental sustainability of the integrated system on the moisture content of the digestate, were established. It is anticipated that the results of this study will constitute an invaluable basis for the future large-scale implementation of the proposed integrated system for enhanced value extraction from organic waste streams.

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Mesophilic anaerobic co-digestion of aloe peel waste with dairy manure in the batch digester: Focusing on mixing ratios and digestate stability

Cited by 120 publications

References 38 publications

Effect of Pretreatment and Substrate Ratios in Biorefinery Employing Co-digestion of Plant Biomass and Poultry Waste

Effect of Pretreatment and Substrate Ratios in Biorefinery Employing Co-digestion of Plant Biomass and Poultry Waste

Pilot-Scale Anaerobic Co-Digestion of the OFMSW: Improving Biogas Production and Startup

Prognostic Assessment of the Viability of Hydrothermal Liquefaction as a Post-Resource Recovery Step after Enhanced Biomethane Generation Using Co-Digestion Technologies

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