Browsing by Autor "Cristhian Chicaiza-Ortiz"

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    Anaerobic digestate: pollutants, ecotoxicology, and legislation
    (2022) Karel Diéguez‐Santana; Cristhian Chicaiza-Ortiz; Jingxin Zhang; Washington Logroño
    The book aims to analyse and discuss the conventional and emerging treatments of digestate generated in the anaerobic treatment of organic waste. Thus, in the circular economy framework, the book will address up-to-date strategies for the treatment and resource recovery from anaerobic digestate.Anaerobic digestion is an expanding technology nowadays, especially when considering the thrust in ongoing research on the value-added products and energy recovery from biomass wastes, i.e., sludges, agro-industrial waste, animal waste, food waste and organic fraction of municipal solid waste, etc. Anaerobic digestate is a leftover and waste management authorities across the world do not have so many options for digestate management except using the digestate for land application as a fertilizer or composting. However, researchers and field engineers are still looking for robust options for digestate management. Thus, a timely book on digestate management will be an invaluable addition to this domain. The key features of the book include: the broad range of biomass waste covered, discussion of conventional to advanced technological options, and the inclusion of successful case studies.ISBN: 9781789062748 (paperback)ISBN: 9781789062755 (eBook)ISBN: 9781789062762 (ePub)
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    Estimation of Current and Future Suitable Areas for Tapirus pinchaque in Ecuador
    (2021) Carlos Mestanza-Ramón; Robinson J. Herrera-Feijoo; Cristhian Chicaiza-Ortiz; Isabel Domínguez-Gaibor; Rubén G. Mateo
    At present, climate change is a direct threat to biodiversity and its effects are evidenced by an increasingly accelerated loss of biodiversity. This study identified the main threats presently facing the Tapirus pinchaque species in Ecuador, generated predictive models regarding its distribution, and analyzed the protected areas as a conservation tool. The methodology was based on a literature review and the application of binary predictive models to achieve these objectives. The main results indicate that the T. pinchaque is seriously threatened, mainly by changes in land use. In addition, three models were selected that show current and future suitable areas for the conservation of the species. Its current distribution amounts to 67,805 km2, 33% (22,872 km2) of which is located in 31 of the 61 protected areas. Finally, it is important to take timely actions focused on biodiversity conservation, considering the importance of balance in ecosystems to the humans dependent thereof, and the results regarding the changes in the current and future distribution areas of the mountain tapir are a great contribution to be used as a management tool for its conservation.
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    LA INVESTIGACIÓN CIENTÍFICA EN DIVERSAS CIENCIAS
    (2022) Marco Alberto Mendoza Pérez; Jean Carlo Andrade; Cristian Arturo Lara Basantes; Diego Ivan Muñoz Naranjo; Cristhian Chicaiza-Ortiz; Wilson Alejandro Largo Taborda; María Ximena López Ramirez; Mónica María Gutiérrez Giraldo; Jhon Fredy Flórez Estrada; Albert Jhonatan López López