Advanced Factors Affecting Microalgae Large-Scale Cultivation and Their Effects on Productivity Improvement

Abstract

Perhaps talking about the use of microalgae species in various fields, global approaches to increase the productivity and شchieving economic superiority alongside لreat environmental benefits وis superfluous.Some of these factors such as illumination conditions, temperature, nutrient concentration, CO2 content and the like have been researched befor. Therefore, in this article, simply review researches that focuses on some less tested factors but with significant effects on increasing culture productivity, especially on a large scale.Therefore, at first, different cultivation environments including fresh water, sea water and sewage for use in mass cultivation are described and compared and the superior species of each environment are introduced. Then different culture methods including photototrophic, heterotrophic, mixotrophic and photothetrophic were compare. Reuse of recycled water for microalgae cultivation process to reduce treatment and pumping costs and related challenges is considered. Finally, the effect of shear stresses (coused by equipments and is a major concern in large-scale cultivation) on cultivation productivity and ways to reduce these effects is considered.

Keywords

• recycled water in cultivation
• shear stress in microalgae
• large-scale cultivation
• cultivation of microalgae
• culture medium