Publications by authors named "I Digel"

This study investigates the morphological, mechanical, and viscoelastic properties of bacterial cellulose (BC) hydrogels synthesized by the microbial consortium . BC gel films were produced under static (S) or bioreactor (BioR) conditions. Additionally, an anisotropic sandwich-like composite BC film was developed and tested, consisting of a rehydrated (S-RDH) BC film synthesized under static conditions, placed between two BioR-derived BC layers.

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  • - The coal industry is increasingly exploring microbial applications as sustainable alternatives to traditional methods for coal mining and processing, addressing environmental and economic challenges.
  • - Microbial-based techniques like coal solubilization and beneficiation leverage surfactants to enhance efficiency and ecologically sound practices in coal fuel production.
  • - Surfactants play a critical role in improving coal biodegradation and processing, acting as agents that modify surface tension and support microbial growth, thus promoting cleaner coal consumption.
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  • Microbial bioaugmentation of low-rank coals (LRC) is being explored as an eco-friendly method to improve the extraction of valuable products from these coals.* -
  • The study examined the effects of activated sludge (AS) as a microbial supplement to enhance the biodegradation of LRC, revealing increased carboxyl groups in the coal due to microbial activity, as detected by FTIR.* -
  • The dominant microbial communities in LRC were mainly Actinobacteria and Proteobacteria, while AS showed higher metabolic activity, indicating that adding AS successfully promoted LRC transformation.*
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  • * Almaty and Astana emerge as the top contenders for smart city status, while Aktobe presents unique challenges and opportunities for development.
  • * The research emphasizes regional inequalities and recommends targeted pilot projects in smaller cities to refine practices before broader implementation, alongside addressing data limitations in future studies.
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