Innovative two‐steps thermo‐chemical pretreatment for sludge reduction and energy recovery: cost and energy assessment

Lignocellulosic substrate is a resource that contains a locked energy reserve that is normally lost during anaerobic digestion. Lignocellulosic substrate is one of the most abundant sources of organic matter available and yet its energy recovery has much room for improvement. Lignocellulosic substrate has cellular properties that are deemed extremely difficult to degrade due to complexity which is why this energy reserve is never unlocked during anaerobic digestion. There are several successful pretreatment methods that are used to degrade this lignocellulosic substrate and unlock this energy reserve. This paper will focus on the methods that include mechanical, irradiation, chemical and combined pretreatment processes. Analysis is conducted on all the studies that are obtained to compare the successes of the different types of pretreatment processes used. Each of the different listed pretreatment processes have different energy requirements, treatment times, and solvent requirement and are acting to enhancing methane production. The improvement in methane production varies from process to process and study to study creating a need to compile all of this valuable data into this research report. This will help future researchers in navigating the available studies of pretreatment of lignocellulosic substrate for improving methane production.

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Performance of a combined system of microbial fuel cell and membrane bioreactor: Wastewater treatment, sludge reduction, energy recovery and membrane fouling

Biosensors and Bioelectronics ◽

10.1016/j.bios.2013.04.005 ◽

2013 ◽

Vol 49 ◽

pp. 92-98 ◽

Cited By ~ 73

Author(s):

Xinying Su ◽

Yu Tian ◽

Zhicai Sun ◽

Yaobin Lu ◽

Zhipeng Li

Keyword(s):

Wastewater Treatment ◽

Fuel Cell ◽

Microbial Fuel Cell ◽

Membrane Fouling ◽

Energy Recovery ◽

Membrane Bioreactor ◽

Sludge Reduction ◽

Combined System

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Aproveitamento energético e ações consorciadas no contexto dos resíduos sólidos urbanos

Revista DAE ◽

10.36659/dae.2020.006 ◽

2019 ◽

Vol 221 (68) ◽

pp. 60-70

Author(s):

Flávio Aguiar Folletto ◽

Luciana Paulo Gomes ◽

Marcelo Oliveira Caetano

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

River Basin ◽

Energy Recovery ◽

Solid Wastes ◽

Energy Utilization ◽

Operating Costs ◽

Symbiotic Relationship ◽

Economic Aspects ◽

Energy Assessment

Resumo Entre as etapas que integram o gerenciamento de Resíduos Sólidos Urbanos (RSU), a destinação final em aterros sanitários tem recebido menor atenção na gestão dos processos, quando comparados à coleta e ao transporte de resíduos. A associatividade entre municípios ou consórcios públicos tem se mostrado uma alternativa emer- gente, não só para com os aspectos econômicos, mas também visando a possibilidade de aproveitamento ener- gético. Este estudo buscou avaliar alternativas para a valoração energética no escopo dos RSU, abordando uma relação simbiótica com os geradores, localizados na Bacia Hidrográfica do Rio dos Sinos. Os arranjos intermu- nicipais possibilitaram vislumbrar a possibilidade de gerir consorciadamente quatro ordenamentos, reduzindo os custos de instalação e operação de aterros sanitários, além da expectativa favorável ao reaproveitamento energético, a partir do biogás gerado nesses sistemas. Palavras-chave: Resíduos Sólidos Urbanos. Aproveitamento energético. Arranjos intermunicipais. Abstract Among the steps that integrate the management of Municipal Solid Waste (MSW), the disposal in landfills has received less attention in the management of processes, when compared to the collection and transportation of waste. The associativity between municipalities or public consortia has shown to be an emerging alternative, not only to the economic aspects, but also, aiming at the possibility of energy utilization. This study search to evaluate alternatives to energy assessment within the RSU, addressing a symbiotic relationship with the generators, located in the Rio dos Sinos River Basin. Intercity arrangements made it possible to glimpse the possibility of managing consortium four systems, reducing installation and operating costs of landfills, as well as favorable expectations to reuse energy from the biogas, generated in these systems. Keywords: Urban solid wastes. Energy recovery. Intercity arrangements.

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Evaluation Of Mechanical, Irradiation And Chemical Pretreatment Lignocelulosic Substrate For Enhanced Methane Production

10.32920/ryerson.14657472 ◽

2021 ◽

Author(s):

Zeid Amin

Keyword(s):

Anaerobic Digestion ◽

Methane Production ◽

Energy Recovery ◽

Energy Reserve ◽

Research Report ◽

Chemical Pretreatment ◽

Lignocellulosic Substrate ◽

Different Types ◽

Combined Pretreatment ◽

Pretreatment Processes

Lignocellulosic substrate is a resource that contains a locked energy reserve that is normally lost during anaerobic digestion. Lignocellulosic substrate is one of the most abundant sources of organic matter available and yet its energy recovery has much room for improvement. Lignocellulosic substrate has cellular properties that are deemed extremely difficult to degrade due to complexity which is why this energy reserve is never unlocked during anaerobic digestion. There are several successful pretreatment methods that are used to degrade this lignocellulosic substrate and unlock this energy reserve. This paper will focus on the methods that include mechanical, irradiation, chemical and combined pretreatment processes. Analysis is conducted on all the studies that are obtained to compare the successes of the different types of pretreatment processes used. Each of the different listed pretreatment processes have different energy requirements, treatment times, and solvent requirement and are acting to enhancing methane production. The improvement in methane production varies from process to process and study to study creating a need to compile all of this valuable data into this research report. This will help future researchers in navigating the available studies of pretreatment of lignocellulosic substrate for improving methane production.

Download Full-text