Microalgae growth in polluted effluents from the dairy industry for biomass production and phytoremediation
| Autor: | Juan Luis Ramos-Suárez, José Ignacio Labbé, Andrea Baeza, Felipe Hansen, Alexis Hernández-Pérez |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
biology
Environmental remediation 020209 energy Process Chemistry and Technology Environmental engineering Biomass 02 engineering and technology 010501 environmental sciences biology.organism_classification 01 natural sciences Pollution Chlorella Phytoremediation Nutrient 0202 electrical engineering electronic engineering information engineering Chemical Engineering (miscellaneous) Environmental science Sewage treatment Waste Management and Disposal Effluent Scenedesmus 0105 earth and related environmental sciences |
| Zdroj: | Journal of Environmental Chemical Engineering. 5:635-643 |
| ISSN: | 2213-3437 |
| DOI: | 10.1016/j.jece.2016.12.040 |
| Popis: | A link can be established in both the dairy and microalgae industries through the recycling of nutrients from dairy effluents (DE) in order to cultivate microalgae, using biomass on the farm or for commercial endeavors. This study assesses the development of Chlorella and Scenedesmus mixed cultures (CMC and SMC) in dairy farms using four different DE as culture media under ambient and laboratory conditions. Viability of the cultures for scaling up was determined based on biomass growth characteristics. CMC and SMC were able to grow in DE. Growth pattern was mainly affected by the type of effluent used, with almost no influence from culture conditions. CMC grew satisfactorily in effluents with high organic and ammonium loads such as cattle standing yard effluents (CSYE), reaching cell concentrations of 1.70 × 10 8 and 1.67 × 10 8 cel ml −1 outdoors and indoors, respectively. Contrarily, SMC grew better on effluents with high chemical and detergent loads such as milking parlor effluents (MPE), reaching cell concentrations of 3.20 × 10 7 and 5.61 × 10 7 cel ml −1 outdoors and indoors, respectively. Despite microalgal growth, there is a need of advance analysis for determining precisely nutrient reduction, since electrical conductivity could not be established as a remediation efficiency indicator. Overall, results show that there is a potential to treat DE through microalgae culture. |
| Databáze: | OpenAIRE |
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