Materials, fuels, upgrading, economy, and life cycle assessment of the pyrolysis of algal and lignocellulosic biomass: a review

Environmental Chemistry Letters, Год журнала: 2023, Номер 21(3), С. 1419 - 1476

Опубликована: Фев. 24, 2023

Abstract Climate change issues are calling for advanced methods to produce materials and fuels in a carbon–neutral circular way. For instance, biomass pyrolysis has been intensely investigated during the last years. Here we review of algal lignocellulosic with focus on products mechanisms, oil upgrading, combining anaerobic digestion, economy, life cycle assessment. Products include oil, gas, biochar. Upgrading techniques comprise hot vapor filtration, solvent addition, emulsification, esterification transesterification, hydrotreatment, steam reforming, use supercritical fluids. We examined economic viability terms profitability, internal rate return, return investment, carbon removal service, product pricing, net present value. also reviewed 20 recent studies found that method highly influenced yield, ranging from 9.07 40.59% 10.1 41.25% biochar, 11.93 28.16% syngas. Feedstock type, pyrolytic temperature, heating rate, reaction retention time were main factors controlling distribution products. Pyrolysis mechanisms bond breaking, cracking, polymerization re-polymerization, fragmentation. Biochar residual forestry could sequester 2.74 tons dioxide equivalent per ton biochar when applied soil thus potential remove 0.2–2.75 gigatons atmospheric annually. The generation bio-oil process is estimated be economically feasible.

Язык: Английский

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Recycling food and agriculture by-products to mitigate climate change: a review

Environmental Chemistry Letters, Год журнала: 2023, Номер 21(6), С. 3351 - 3375

Опубликована: Авг. 6, 2023

Abstract Food loss and waste is a major issue affecting food security, environmental pollution, producer profitability, consumer prices, climate change. About 1.3 billion tons of products are yearly lost globally, with China producing approximately 20 million soybean dregs annually. Here, we review agricultural byproducts emphasis on the strategies to convert this into valuable materials. Byproducts can be used for animal plant nutrition, biogas production, food, extraction oils bioactive substances, production vinegar, wine, edible coatings organic fertilizers. For instance, compounds represent 8–20% apple pomace, 5–17% orange peel, 10–25% grape seeds, 3–15% pomegranate 2–13% date palm seeds. Similarly, pharmaceutical industry uses 6.5% total output gelatin derived from fish bones skin. Animals fed peel olive pomace improved concentration deoxyribonucleic acid protein, litter size, milk yield, nest characteristics. Biogas amounts 57.1% using residue, 53.7% papaya 49.1% sugarcane bagasse.

Язык: Английский

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Biogas: Production, properties, applications, economic and challenges: A review

Results in Chemistry, Год журнала: 2024, Номер 7, С. 101549 - 101549

Опубликована: Янв. 1, 2024

Biogas is obtained from the breakdown of biomass by microorganisms and bacteria in absence oxygen. considered a renewable source energy, similar to solar energy wind energy. can be produced or bio-waste; thus, it environmentally friendly. suspended monoxide decomposition process anaerobic fermentation decomposable materials such as agricultural manure, sewage, municipal waste, green waste (gardens parks), plant material products. natural that leaves effective effects on nature industries. This gas organic materials, including animal food sewage. Fertilizers produce biogas through digestion (ie without presence oxygen). mixture gases generated decaying biodegradable Its main contents are 50–70 % methane (CH4) volume, 30–50 carbon dioxide (CO2), traces other gases, like hydrogen sulfide (H2S) water vapor (H2O). CO2, H2S, content may affect performance life conversion devices; consequently, their removal before end-use essential for improving quality biogas. combination an ideal option making The most important advantages (production reduction amount discarded pathogens, containing matter into high fertilizer, protection vegetation, soil, water, increasing productivity field livestock agriculture) It also one disadvantages (incomplete small technologies, impurities, effect temperature production, unsuitable urban dense areas, not affordable). For economical use biogas, carried out under controlled conditions relatively simple device called reservoir. review summarizes current state-of-the-art presents future perspectives related production. Moreover, historical retrospective sector early years its development till recent advancements give outlook opportunities opening up optimization.

Язык: Английский

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Mixotrophic and heterotrophic growth of microalgae using acetate from different production processes

Reviews in Environmental Science and Bio/Technology, Год журнала: 2024, Номер 23(1), С. 93 - 132

Опубликована: Фев. 20, 2024

Abstract The high metabolic flexibility and biodiversity of microalgae make them promising systems for the production chemicals high-value metabolites to be utilized in various industrial applications. Currently, are primarily cultivated phototrophic processes or fermenters using glucose as substrate. However, such configurations often too costly majority potential applications require improvements. use acetate substrate enhance biomass productivity reduce cost environmental impacts is a solution. In future bio-based economy, can serve an excellent intermediate link many facilities, it synthesized different technologies from renewable resources CO 2 waste. This work provides detailed description synthesis alternative conventional methanol carbonylation, including pros cons each: aerobic anaerobic fermentations; thermochemical treatments; C1 gas fermentation; microbial electrosynthesis artificial photosynthesis. Additionally, utilization growth mixotrophic heterotrophic conditions reviewed, covering key engineering aspects (strains, yields, rate, inhibition, productivity, process configuration). These guidelines rationale design algal cultivation based on carbon source. Finally, review critically assesses state art coupling acetate-rich streams with production, highlighting addressing main knowledge gaps filled through research.

Язык: Английский

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Nexus between anaerobic digestion of animal waste and antibiotic-related pollutants: A critical review

Applied Energy, Год журнала: 2025, Номер 382, С. 125284 - 125284

Опубликована: Янв. 9, 2025

Язык: Английский

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Bioenergy production from chicken manure: a review

Environmental Chemistry Letters, Год журнала: 2023, Номер 21(5), С. 2707 - 2727

Опубликована: Июнь 12, 2023

Abstract Adopting waste-to-wealth strategies and circular economy models can help reduce biowaste add value. For instance, poultry farming is an essential source of protein, chicken manure be converted into renewable energy through anaerobic digestion. However, there are a number restrictions that prevent the utilization in bioenergy production. Here, we review conversion biomethane by digestion with focus on limiting factors, to enhance digestion, valorization. Limiting factors include antibiotics, ammonia, fatty acids, trace elements, organic compounds. Digestion enhanced co-digestion sludge, lignocellulosic materials, food waste, green waste; addition additives such as chars, hydrochars, conductive nanoparticles; improving bacterial community. Chicken valorized composting, pyrolysis, gasification. We found growth organisms inhibited low carbon-to-nitrogen ratios. The total biogas yield decreased from 450.4 211.0 mL/g volatile solids presence Staphylococcus aureus chlortetracycline manure. A concentration 60 mg/kg or less optimal for biomethanization, whereas higher concentrations inhibit productivity reduced 56% at oxytetracycline 10 mg/L Tylosin exceeding 167 highly deteriorated due accumulation acetate propionate fermentation medium. Anaerobic 10% primary sludge 90% increased up 8570 solids. Moreover, chemicals biochar, hydrochar, conducting materials boost promoting direct interspecies electron transfer. was improved value 38% supplementation biochar.

Язык: Английский

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Nutrient recovery from municipal solid waste leachate in the scope of circular economy: Recent developments and future perspectives

Journal of Environmental Management, Год журнала: 2023, Номер 335, С. 117518 - 117518

Опубликована: Фев. 24, 2023

Язык: Английский

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Review on application of algae-based biochars in environmental remediation: Progress, challenge and perspectives

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(6), С. 111263 - 111263

Опубликована: Окт. 13, 2023

Язык: Английский

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Synergistic algal/bacterial interaction in membrane bioreactor for detoxification of 1,2-dichloroethane-rich petroleum wastewater

Journal of Hazardous Materials, Год журнала: 2024, Номер 470, С. 134125 - 134125

Опубликована: Март 29, 2024

Язык: Английский

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Coupling hydrothermal liquefaction and anaerobic digestion for waste biomass valorization: A review in context of circular economy

Chemosphere, Год журнала: 2024, Номер 361, С. 142419 - 142419

Опубликована: Май 22, 2024

In light of the substantial global production biomass waste, effective waste management and energy recovery solutions are paramount importance. Hydrothermal liquefaction (HTL) anaerobic digestion (AD) have emerged as innovative techniques for converting into valuable resources. Their integration creates a synergistic framework that mitigates inherent limitations, leading to improved efficiency, enhanced product quality, comprehensive utilization biomass. This review paper investigates HTL AD, highlighting its significance potential benefits well optimal sequencing (HTL followed by AD HTL). The encompasses experimental procedures, factors influencing both options, characterizations, final outcomes, toxicological assessments discussions on reduction. Additionally, it delves transition towards circular bioeconomy discusses challenges opportunities intrinsic these processes. findings presented in this offer insights shape future research evolving field.

Язык: Английский

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