Acetogenesis and methanogenesis liquid digestates for pretreatment of rice straw: A holistic approach for efficient biomethane production and nutrient recycling

Elsayed, Mahdy; Abomohra, Abd El‐Fatah; Ai, Ping; Jin, Kemo; Fan, Qizhou; Zhang, Yanlin

doi:10.1016/j.enconman.2019.05.011

Cited by 72 publications

(26 citation statements)

References 52 publications

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“…Different investigations have been conducted to study the conversion efficiency and energy yield of different biomasses [31][32][33][34][35]. However, the literature is still limited to the selection of energy-efficient drying methods based on the specific energy consumption (SEC) and optimization of an energy-efficient dryer for watery biomass feedstock.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Infrared Radiation Combined with Hot Air Convection for Energy-Efficient Drying of Biomass

et al. 2019

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Cost-effective biomass drying is a key challenge for energy recovery from biomass by direct combustion, gasification, and pyrolysis. The aim of the present study was to optimize the process of biomass drying using hot air convection (HA), infrared (IR), and combined drying systems (IR-HA). The specific energy consumption (SEC) decreased significantly by increasing the drying temperature using convective drying, but higher air velocities increased the SEC. Similarly, increasing air velocity in the infrared dryer resulted in a significant increase in SEC. The lowest SEC was recorded at 7.8 MJ/kg at an air velocity of 0.5 m/s and an IR intensity of 0.30 W/cm2, while a maximum SEC (20.7 MJ/kg) was observed at 1.0 m/s and 0.15 W/cm2. However, a significant reduction in the SEC was noticed in the combined drying system. A minimum SEC of 3.8 MJ/kg was recorded using the combined infrared-hot air convection (IR-HA) drying system, which was 91.7% and 51.7% lower than convective and IR dryers, respectively. The present study suggested a combination of IR and hot air convection at 60 °C, 0.3 W/cm2 and 0.5 m/s as optimum conditions for efficient drying of biomass with a high water content.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Infrared Radiation Combined with Hot Air Convection for Energy-Efficient Drying of Biomass

et al. 2019

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“…Bioenergy has emerged as a source of renewable energy. It can be produced from easily available waste materials, such as the liquid fraction from hydrothermal pretreatment of rice straw that contains sugar, which is the nutrient source for the production of bioethanol through fermentation process [81]. However, the concentration of sugar in the liquid fraction was too low for efficient bioethanol production.…”

Section: Bioproducts and Food Industrymentioning

confidence: 99%

Unlocking the application potential of forward osmosis through integrated/hybrid process

Ang

Mohammad

Johnson

et al. 2020

Science of The Total Environment

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Study of forward osmosis (FO) has been increasing steadily over recent years with applications mainly focusing on desalination and wastewater treatment processes. The working mechanism of FO lies in the natural movement of water between two streams with different osmotic pressure, which makes it useful in concentrating or diluting solutions. FO has rarely been 2 operated as a stand-alone process. Instead, FO processes often appear in a hybrid or integrated form where FO is combined with other treatment technologies to achieve better overall process performance and cost savings. This article aims to provide a comprehensive review on the need for hybridization/integration for FO membrane processes, with emphasis given to process enhancement, draw solution regeneration, and pretreatment for FO fouling mitigation. In general, integrated/hybrid FO processes can reduce the membrane fouling propensity; prepare the solution suitable for subsequent value-added uses and production of renewable energy; lower the costs associated with energy consumption; enhance the quality of treated water; and enable the continuous operation of FO through the regeneration of draw solution. The future potential of FO lies in the success of how it can be hybridized or integrated with other technologies to minimize its own shortcomings, while enhancing the overall performance.

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“…Some studies have been optimized and explored the more detailed process optimization, including recirculation ratio (partially recirculation) (Ratanatamskul and Saleart, 2016;Zuo et al, 2015), pre-mixing time of liquid digestate with raw material before recirculation (Elsayed et al, 2019;Liu et al, 2019), etc., to achieve high efficient digestion with liquid digestate recirculation. In this way, the liquid digestate recirculation will have the potential to be applied under a wider variety of raw material conditions and operating processes.…”

Section: Production Recommendationmentioning

confidence: 99%

Achieve clean and efficient biomethane production by matching between digestate recirculation and straw-to-manure feeding ratios

Zheng

Cai

Yun-feng

et al. 2020

Journal of Cleaner Production

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Acetogenesis and methanogenesis liquid digestates for pretreatment of rice straw: A holistic approach for efficient biomethane production and nutrient recycling

Cited by 72 publications

References 52 publications

Evaluation of Infrared Radiation Combined with Hot Air Convection for Energy-Efficient Drying of Biomass

Evaluation of Infrared Radiation Combined with Hot Air Convection for Energy-Efficient Drying of Biomass

Unlocking the application potential of forward osmosis through integrated/hybrid process

Achieve clean and efficient biomethane production by matching between digestate recirculation and straw-to-manure feeding ratios

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