Beneficial synergistic effect on bio-oil production from co-liquefaction of sewage sludge and lignocellulosic biomass

Leng, Lijian; Jun, Li; Yuan, Xingzhong; Li, Jingjing; Han, Pei; Hong, Yuchun; Feng, Wei; Zhou, Wenguang

doi:10.1016/j.biortech.2017.12.018

Cited by 118 publications

(33 citation statements)

References 33 publications

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“…The management of sewage sludge presents many technical challenges, and the associated capital and operating costs can exceed 50% of the total wastewater treatment costs (Serrano et al, 2015). Additionally, because sewage sludge contains mostly degradable organics, it is a valuable source of sustainable biomass energy (Leng et al, 2018). Consequently, it is expected to become a mainstream energy source for environmentally and socially sustainable development (Nguyen et al, 2017a;Tyagi and Lo, 2013).…”

Section: Introductionmentioning

confidence: 99%

Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

et al. 2019

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The influence of thermal hydrolysis pretreatment (THP) on physicochemical properties (pH, total solids, volatile solids, chemical oxygen demand, total nitrogen, ammonium nitrogen, volatile fatty acids, viscosity, and cell morphology) and anaerobic biodegradability of highly concentrated waste activated sludge (WAS) with TS content ranging from 1-7% was evaluated at different temperatures ranging from 100-220 °C. The biomethane potential (BMP) of the WAS was systematically analyzed and evaluated. Images of its cellular structure were also analyzed. The results indicated that THP is a useful method for solubilizing volatile solids and enhancing CH 4 production regardless of the TS content of the WAS feed. The ultimate CH 4 production determined from the BMP analysis was 313-348 L CH 4 /kg VS (72.6-74.1% CH 4 ) at the optimum THP temperature of 180 °C. The results showed that THP could improve both the capacity and efficiency of anaerobic digestion, even at a high TS content, and could achieve the dual purpose of sludge reduction and higher energy recovery.

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Section: Introductionmentioning

confidence: 99%

Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

et al. 2019

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“…These substances in biochar may provide biological or physical advantages when using soil remediation and become effective components of electrode materials for electron transfer (Lee et al 2018). For example, sewage sludge with high ash content (22-35% of feedstock) that is continuously increasing in quantity may be a promising feedstock for high biochar production (Leng et al 2018;Prajitno et al 2018;Mujahid et al 2020). In addition, it has been reported that the ash content of the feedstock serves as a catalyst in the formation of char during pyrolysis (Nowakowski et al 2007).…”

Section: Biochar Production From Mixed Feedstockmentioning

confidence: 99%

Recent advancements in biochar production according to feedstock classification, pyrolysis conditions, and applications: A review

Chun¹,

Lee²,

Yoo

et al. 2021

BioRes

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Biochar is highly valuable in various applications due to its unique physicochemical properties such as high thermal efficiency, high surface area, surface functional groups, and crystal structure. The goal of this review is to establish a systematic strategy of biochar production for applications in various fields. First, the characteristics of biomass as feedstock for biochar production and their classification are discussed according to the types present in nature. Second, the technology for biochar production and the production yield are examined. In thermochemical conversion for biochar production, five major types of pyrolysis processes are suggested, and the production yield is evaluated according to pyrolysis parameters (feedstock pretreatment, operating temperature, heating rate, residence time, carrier gas). In addition, biochar production from pyrolysis of mixed feedstock has recently been suggested; thus, the evaluation of the production yield from co-pyrolysis is included. Finally, analytical techniques for biochar characterization are investigated and the application of biochar in various fields is considered, such as in adsorbents, energy storage devices, and catalysts.

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“…A pirólise é a decomposição térmica da matéria orgânica em moderadas e altas temperaturas (300-700ºC), na ausência de oxigênio (SYED--HASSAN et al, 2017 Tratamentos térmicos alternativos também são estudados. Na China, Leng et al (2018) usaram lodo de ETE misturado à biomassa lignocelulósica para a produção de um bióleo, por meio de processo de coliquefação termoquímica -que ocorre sob temperaturas reduzidas (250-400ºC) e altas pressões (5-20MPa), com a utilização de água ou outros solventes orgânicos. O solvente utilizado no estudo foi o etanol e os autores concluíram que os resultados da liquefação conjunta produziu um bióleo de melhor qualidade do que a utilização de apenas um resíduo.…”

Section: Revisão De Literaturaunclassified

Uso benéfico de lodo de estações de tratamento de água e de tratamento de esgoto: estado da arte

Urban¹,

Isaac²,

Morita³

2019

RDAE

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Especialistas atualmente concordam que a abordagem tradicional de gerenciamento de resíduos sólidos com foco no final da etapa do processo produtivo (abordagem linear) não é suficiente num cenário com restrição cada vez maior de recursos naturais e financeiros. Assim, as novas estações de tratamento de água (ETAs) e de esgoto (ETEs) devem ser projetadas levando em consideração a prioridade na gestão e no gerenciamento dos resíduos sólidos, preconizada pela política brasileira, da Europa, do Japão e da China: a não geração, a redução, a reutilização, a reciclagem, o tratamento dos lodos e a disposição final apenas dos rejeitos. Para as ETAs e ETEs existentes, usos benéficos devem ser priorizados sobre as formas de transferência ou de disposição final. Neste artigo, diversos usos de lodos de ETAs e ETEs são apresentados e discutidos em relação ao seu potencial de aplicação. Conclui-se que a maioria das pesquisas é realizada em escala de laboratório e não se avalia a viabilidade ambiental. Nos países em desenvolvimento, ainda é incipiente o uso de lodos, o que não acontece nos desenvolvidos, que tornaram o uso benéfico uma realidade há mais de uma década. É importante destacar também que não basta verificar a viabilidade técnica e ambiental do uso pretendido para que ele seja aplicado em escala real, pois os problemas logísticos, a relação custo-benefício e o atendimento aos interesses e restrições de cada ator envolvido no processo influenciam significativamente. Palavras-chave: Resíduos de tratamento de água. Resíduos de tratamento de esgoto. Reúso de lodo. Resíduos sólidos. Gerenciamento integrado de resíduos.

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Beneficial synergistic effect on bio-oil production from co-liquefaction of sewage sludge and lignocellulosic biomass

Cited by 118 publications

References 33 publications

Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

Recent advancements in biochar production according to feedstock classification, pyrolysis conditions, and applications: A review

Uso benéfico de lodo de estações de tratamento de água e de tratamento de esgoto: estado da arte

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