Colombia es uno de los mayores productores café en el mundo, con un mercado que superó 13,9 millones sacos 2020. Sin embargo, proceso beneficio húmedo del se emplean grandes cantidades agua, aproximadamente 4.154.354 m3, las fases despulpado, lavado y transporte grano, generando aguas residuales contaminadas tienen poco tratamiento antes ser vertidas a fuentes hídricas. En presente trabajo busc...

More than 100,000 tons of 2,4,6-trinitrotoluene were produced at the former ammunition site Werk Tanne in Clausthal-Zellerfeld, Germany. The production of explosives and consequent detonation in approximately 1944 by the Allies caused great pollution in this area. Four soil samples and three water samples were taken from this site and characterized by applying chemical-analytical methods and se...

Exploiting microalgae as feedstock for biofuel production is a growing field of research and application, but there remain challenges related to industrial viability and economic sustainability. A solution to the water requirements of industrial-scale production is the use of wastewater as a growth medium. Considering the variable quality and contaminant loads of wastewater, algal feedstock wou...

The production of biomass by microalgae is considered a clean alternative compared to other plant crops that require large areas for cultivation and that generate environmental impacts. This study evaluated the influence of temperature and nutrients on lipid contents of cultured species of freshwater microalgae, with a view toward using these lipids for biodiesel production. Two strains of Mono...

BACKGROUND Nowadays, bioflocculation is considered as a potential technology that could be able to alleviate microalgae dewatering cost regarded as the cornerstone hindrance of their full-scale application. However, most bioflocculation studies reported are laboratory scales. This study examined a pilot-scale and in situ flocculation of freshwater microalgae Desmodesmus brasiliensis by microbia...

Biodiversity currently faces unprecedented threats owing to species extinctions. Ecologically, compensatory dynamics can ensure stable community biomass following perturbation. However, whether there is a contribution of genetic diversity to community responses is an outstanding question. To date, the contribution of evolutionary processes through genotype shifts has not been assessed in natura...

Periphytic algae exist widely in different waters. However, little is known about periphytic long-distance water diversion channels across watersheds. We investigated the and environmental factors at twenty sampling sites middle route of South-to-North Water Diversion Project (MRP). The dominant species were Desmodesmus intermedius (Hegewald), Calothrix thermalis (Bornet & Flahault), pariet...

Harvesting impacts the costs of microalgae production and affects characteristics final product. Therefore, this study evaluated Moringa oleifera seed powder (MP) as a bioflocculant compared to two chemicals (Aluminium Sulphate—AS Iron Chloride—IC) harvest mixed culture (Chlorella vulgaris Desmodesmus sp.) grown on digestate. MP was most stable flocculant but resulted in lowest harvesting effic...