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Benefits and risks of agricultural reuse of digestates from plastic tubular digesters in Colombia
(2021-11)
Article
Restricted access - publisher's policyThe aim of this study is to characterize the digestates from three plastic tubular digesters implemented in Colombia fed with: i) cattle manure; ii) cattle manure mixed with cheese whey; iii) pig manure. All the digesters ... -
Valorization of selenium-enriched sludge and duckweed generated from wastewater as micronutrient biofertilizer
(2021-10-01)
Article
Restricted access - publisher's policySelenium (Se) is an essential trace element for humans and animals with a narrow window between deficiency and toxicity levels. Application of conventional chemical Se fertilizers to increase the Se content of crops in Se ... -
Optimization of the phototrophic Cyanobacteria polyhydroxybutyrate (PHB) production by kinetic model simulation
(Elsevier, 2021-12)
Article
Open AccessCyanobacteria can grow using inorganic substrates, such as CO2 from industrial sources and nutrients from wastewaters, and therefore are promising microorganisms to produce polyhydroxybutyrate in a cleaner circular context. ... -
Evaluation of selenium-enriched microalgae produced on domestic wastewater as biostimulant and biofertilizer for growth of selenium-enriched crops
(2021-10)
Article
Restricted access - publisher's policyThis study assessed selenium (Se)-enriched microalgae biomass produced in a pilot-scale raceway pond treating domestic wastewater and an extract thereof as biostimulant and biofertilizer. After producing the Se-enriched ... -
Production of selenium-enriched microalgae as potential feed supplement in high-rate algae ponds treating domestic wastewater
(2021-08)
Article
Restricted access - publisher's policyThis study assessed the selenium (Se) removal efficiency of two pilot-scale high-rate algae ponds (HRAPs) treating domestic wastewater and investigated the production of Se-enriched microalgae as potential feed supplement. ... -
A new evaluation framework for nature-based solutions (NBS) projects based on the application of performance questions and indicators approach
(Elsevier, 2021-09)
Article
Open AccessOne of the key features of nature-based solutions (NBSs) is their high effectiveness and economic and resource efficiency in solving problems compared to traditional grey interventions. These aspects, however, have so far ... -
Improvement of real-scale raceway bioreactors for microalgae production using Computational Fluid Dynamics (CFD)
(Elsevier, 2021-04)
Article
Restricted access - publisher's policyIn this work, the design and hydrodynamic of a 500 m2 raceway bioreactor were optimized using Computational Fluid Dynamics (CFD). First, the influence of the bend type (traditional, isle partition and baffle partition) and ... -
Assessment of hydrodynamics based on Computational Fluid Dynamics to optimize the operation of hybrid tubular photobioreactors
(Elsevier, 2021-10)
Article
Open AccessAppropriate hydrodynamic conditions are crucial in photobioreactors (PBR) in order to prevent sedimentation of microalgal biomass and to ensure the uniform exposure of microalgae cells to light and nutrients. Hydrodynamic ... -
Removal and environmental risk assessment of contaminants of emerging concern from irrigation waters in a semi-closed microalgae photobioreactor
(Elsevier, 2021-03)
Article
Restricted access - publisher's policyThe present study evaluated the efficiency of a semi-closed, tubular, horizontal photobioreactor (PBR) to treat a mixture of irrigation and rural drainage water, focusing in the removal of different contaminants of emerging ... -
Production of polymers by cyanobacteria grown in wastewater: current status, challenges and future perspectives
(Elsevier, 2020-03)
Article
Open AccessCyanobacteria are prokaryotic oxygenic phototrophs receiving attention in a wide variety of technological applications such as food and feed supplements and production of valuable polymers. Among these, carbohydrates (e.g. ... -
Volcanic ash as a sustainable binder material: an extensive review
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-03)
Article
Open AccessThe construction industry is affected by the constant growth of populations in urban areas. The demands for cement production has an increasing environmental impact, and there are urgent demands for alternative sustainable ... -
Promotion of full-scale constructed wetlands in the wine sector: comparison of greenhouse gas emissions with activated sludge systems
(Elsevier, 2021-05)
Article
Restricted access - publisher's policyThe aim of this study was to quantify and compare greenhouse gas (GHG) (i.e. carbon dioxide (CO2), nitrousoxide (N2O) and methane (CH4)) emissions from two full-scale winery wastewater and sludge treatment sys-tems (i.e. ...
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