Research Progress of Microalgae in Nitrogen Removal Treatment of Sewage and Wastewater
Compared with the traditional wastewater biological denitrification technology,microalgae technology can assimilate nitro-gen-containing pollutants and has the characteristics of producing proteins and lipids,which can be processed and utilized by human beings.Indi-vidual culture of microalgae has the disadvantages of slow and unstable growth,weak shock resistance and poor nitrogen removal,while microalgae co-culture technology can be utilized by inducing exogenous microorganisms,such as fungi and bacteria,to carry out interspecies nutrient metabo-lism exchanges,to promote stable growth,and to improve nitrogen removal and recycling efficiencies,which has a better utilization value.pointing out the limitations of physicochemical denitrification technology,describes the mechanism of microalgae denitrification in combination with domes-tic and international research,summarizes and analyzes the characteristics of microalgae-fungi,microalgae-bacteria and microalgae co-cultivation and its application prospects,and proposes that microalgae have far-reaching significance in the future treatment of urban sewage and other direc-tions,and that microalgae co-cultivation should be further analyzed in the laboratory stage with respect to the utilization of light and the interspecies interplay mechanism.In the laboratory stage,the light utilization and interspecies interaction mechanism of microalgae co-culture technology should be analyzed.
nitrogen pollutiondenitrification with microalgaeco-culture of microalgaeprotein production by microalgae
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