Co-production process optimization and carbon footprint analysis of biohydrogen and biofertilizer from corncob by photo-fermentation

Zhang, Zhiping; Ai, Fuke; Li, Yameng; Zhu, Shengnan; Wu, Qiyou; Duan, Zhisai; Liu, Hanchuan; Qian, Lu; Zhang, Quanguo; Zhang, Yang

doi:10.1016/j.biortech.2023.128814

Cited by 13 publications

(2 citation statements)

References 36 publications

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“…A residue remains in this process, which is a mixture of the E. crassipes plant and poultry manure. This material is sanitized and has potential as a biofertilizer due to its physicochemical characteristics 74 – 76 .…”

Section: Resultsmentioning

confidence: 99%

Design of a sustainable system for wastewater treatment and generation of biofuels based on the biomass of the aquatic plant Eichhornia Crassipes

Sayago,

Gómez-Caicedo,

Mercado Suárez

2024

Sci Rep

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Colombia’s continuous contamination of water resources and the low alternatives to produce biofuels have affected the fulfillment of the objectives of sustainable development, deteriorating the environment and affecting the economic productivity of this country. Due to this reality, projects on environmental and economic sustainability, phytoremediation, and the production of biofuels such as ethanol and hydrogen were combined. The objective of this article was to design and develop a sustainable system for wastewater treatment and the generation of biofuels based on the biomass of the aquatic plant Eichhornia crassipes. A system that simulates an artificial wetland with live E. crassipes plants was designed and developed, removing organic matter contaminants; subsequently, and continuing the sustainability project, bioreactors were designed, adapted, and started up to produce bioethanol and biohydrogen with the hydrolyzed biomass used in the phytoremediation process, generating around 12 g/L of bioethanol and around 81 ml H2/g. The proposed research strategy suggests combining two sustainable methods, bioremediation and biofuel production, to preserve the natural beauty of water systems and their surroundings.

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Section: Resultsmentioning

confidence: 99%

Design of a sustainable system for wastewater treatment and generation of biofuels based on the biomass of the aquatic plant Eichhornia Crassipes

Sayago,

Gómez-Caicedo,

Mercado Suárez

2024

Sci Rep

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“…However, a biomass residue without heavy metals is what remains in this process of the mixture of the E. crassipes plant and biosolid (WTRs) and has potential as a biofertilizer due to its physicochemical characteristics. The anaerobic fermentation of organic matter produces an organic residue with exceptional fertilizing properties, comprising an average of 8.5% organic matter, 2.6% nitrogen, 1.5% phosphorus, 1.0% potassium, and a pH of 7.5 [58][59][60][61][62][63][64]. The material used with heavy metals must finally be disposed of as hazardous waste.…”

Section: Production Of Biohidrogenmentioning

confidence: 99%

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Sayago

2024

Polymers

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Water scarcity is a significant global issue caused by the prolonged disregard and unsustainable management of this essential resource by both public and private bodies. The dependence on fossil fuels further exacerbates society’s bleak environmental conditions. Therefore, it is crucial to explore alternative solutions to preserve our nation’s water resources properly and promote the production of biofuels. Research into the utilization of E. crassipes to remove heavy metals and generate biofuels is extensive. The combination of these two lines of inquiry presents an excellent opportunity to achieve sustainable development goals. This study aims to develop a sustainable wastewater treatment system and generate biohydrogen from dry, pulverized E. crassipes biomass. A treatment system was implemented to treat 1 L of industrial waste. The interconnected compartment system was built by utilizing recycled PET bottles to generate biohydrogen by reusing the feedstock for the treatment process. The production of biological hydrogen through dark fermentation, using biomass containing heavy metals as a biohydrogen source, was studied. Cr (VI) and Pb (II) levels had a low impact on hydrogen production. The uncontaminated biomass of E. crassipes displayed a significantly higher hydrogen yield (81.7 mL H2/g glucose). The presence of Cr (IV) in E. crassipes leads to a decrease in biohydrogen yield by 14%, and the presence of Pb (II) in E. crassipes leads to a decrease in biohydrogen yield of 26%. This work proposes a strategy that utilizes green technologies to recover and utilize contaminated water. Additionally, it enables the production of bioenergy with high efficiency, indirectly reducing greenhouse gases. This strategy aligns with international programs for the development of a circular economy.

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Biomass pretreatment, bioprocessing and reactor design for biohydrogen production: a review

Sahil,

Singh,

Masakapalli

et al. 2024

Environ Chem Lett

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Co-production process optimization and carbon footprint analysis of biohydrogen and biofertilizer from corncob by photo-fermentation

Cited by 13 publications

References 36 publications

Design of a sustainable system for wastewater treatment and generation of biofuels based on the biomass of the aquatic plant Eichhornia Crassipes

Design of a sustainable system for wastewater treatment and generation of biofuels based on the biomass of the aquatic plant Eichhornia Crassipes

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Biomass pretreatment, bioprocessing and reactor design for biohydrogen production: a review

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