Results 81 to 90 of about 18,366 (198)

Eficiência de um sistema de reatores anaeróbios no tratamento de efluentes líquidos de suinocultura =The efficiency of a sistem of anaerobic reactors treating swine wastewater.

open access: yesActa Scientiarum: Technology, 2011
Grande atenção tem sido dada pelos órgãos de fiscalização ambiental à produção confinada de suínos, pelo elevado potencial poluidor desse tipo de atividade. O grande desafio do suinocultor brasileiro é produzir, de forma intensiva, alimento com qualidade
Erlon Lopes Pereira   +3 more
doaj  

From Waste to Value: A Bibliometric‐Systematic Review of Biogas and Biomethane Business Literature

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT In response to escalating environmental challenges and the growing demand for sustainable energy solutions, the agri‐food sector is increasingly exploring business models grounded in circular economy (CE) principles based on the production of biogas and biomethane.
Silvia Cantele   +3 more
wiley   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr   +4 more
wiley   +1 more source

Aumento de la producción de biogás mediante el uso de zeolita natural

open access: yesRevista Científica de Ingeniería Energética, 2011
El presente trabajo analiza la influencia de una zeolita natural sobre el proceso de digestión anaerobia, a partir de las evidencias existentes sobre el incremento de la degradación de la materia orgánica y la producción de ...
Francisco Díaz Marrero   +1 more
doaj  

Características químicas y fermentativas in vitro de Cynodon nlemfuensis Vanderyst y Guazuma ulmifolia Lam

open access: yesEcosistemas y Recursos Agropecuarios
El objetivo consistió en evaluar in vitro las características químicas y fermentativas de mezclas de pasto Estrella (Cynodon nlemfuensis; Cn) con niveles crecientes de guácima (Guazuma ulmifolia; Gu).
Alejandro Ley de Coss   +5 more
doaj   +1 more source

Beyond Technological Maturity: Understanding the Institutional Trajectories of Carbon‐Derived Renewable Methane in the European Energy System

open access: yesEcoEnergy, EarlyView.
We demonstrate that the limitation of bioCO2‐derived methane is systemic rather than technological, and provide a validated framework for traceability, certification, and policy alignment enabling its integration into RFNBO‐compliant value chains and EU energy systems. ABSTRACT Renewable methane derived from biogenic CO2 (bioCO2) occupies a paradoxical
Francesco Lamberti   +6 more
wiley   +1 more source

Water stress: Opportunities for supply chain research

open access: yesProduction and Operations Management, EarlyView., 2023
Abstract Driven by climate change and overuse, water stress is a worsening sustainability concern that threatens businesses and communities across the globe. Leading global organizations such as the United Nations have expressed an urgent need for sustainable water management strategies across nations and economies.
Dustin Cole   +4 more
wiley   +1 more source

Phenolic Resin‐Functionalized NH2‐UiO‐66‐Containing Mixed Matrix Membranes for CO2/CH4 Separation

open access: yesEcoEnergy, EarlyView.
Phenolic resin‐functionalized small‐size RFin@NH2‐UiO‐66 nanofillers were prepared and combined with polyetherimide (PEI) matrix to construct mixed matrix membranes for effective CO2/CH4 separation. ABSTRACT For mixed matrix membranes (MMMs), the inherent structural features and composition of the embedded nanofillers play a pivotal role in governing ...
Yongmei Guo   +6 more
wiley   +1 more source

Anaerobic co-digestion of crude glycerin and starch industry effluent Codigestão anaeróbia de glicerina bruta e efluente de fecularia

open access: yesEngenharia Agrícola, 2013
The Brazil's Biodiesel Production and Use Program introduces biodiesel in the Brazilian energy matrix, bringing along the perspective of a growth of the glycerin offer, co-product generated in the proportion of 10 kg for each 100 L of biodiesel.
Andrea C. Larsen   +4 more
doaj  

Circularity Before Strategy: Translating the Circular Economy for Environmental Policy and Governance in Emerging Economies

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT The circular economy (CE) is now a cornerstone of global environmental policy. However, current debates often frame CE as a future‐oriented strategy to be adopted or scaled, implicitly assuming that emerging economies and the Global South are starting from strictly linear conditions. Drawing on practice‐oriented and institutional perspectives,
Solmaz Filiz Karabag, Cali Nuur
wiley   +1 more source

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