Microalgae as agents for upcycling industrial wastewater: energy patents and scientific literature overview

The oil/gas, ethanol, biodiesel and biogas industries generate wastewater known as produced water, vinasse, crude glycerin methanogenic digester´s based effluents, respectively. Microalgal systems have been suggested a suitable adaptable biological approach for the treatment of such wastewaters. advantage an is combination with accumulation algal valuable bioproducts. This systematic literature review aims to analyze scientific patent production bibliometric analysis. Another aim discuss bioremediation strategies that were adopted by cited treating their distinct effluents. Data was obtained using papers patents published between 2000 2020 (335 104 patents). United States contributed largest number articles, followed China Brazil. Meanwhile China, South Korea are major owners patents. work identified microalgal system successful in bioremediating several pollutants glycerol significantly improves performance bioproducts production. Nonetheless, efficiency this process hindered either strategy applied before cultivation stage or after process. For instance, variables nutrient supplementation, turbidity salinity corrections pivotal performance. Thus, full-scale directly associated correct integration proper management microalgae systems.