EVALUATION OF DIFFERENT SOURCES OF WASTEWATER TO CULTIVATE SOME SELECTED ALGAL STRAINS

Abstract

We must develop effective resource recovery technologies in order to achieve sustainable progress, given global population increase, growing consumption, and limited natural resources. Algae-based technologies are cost-effective and efficient ways to clean wastewater and produce usable goods. where, microalgal cultures are an attractive wastewater treatment alternative (urban, industrial, or agricultural wastewater) as they enable a tertiary biotreatment as well as the potential production of useful biomass. The purpose of the present study was to assess the growth of microalgae on varied wastewater as a low-cost media for maximizing biomass production and as well as, their chemical composition. Apply the algae biomass produced in wastewater for feeding of silkworms. Results could be summarized in the following points: 1- Four samples of wastewater (agriculture, dyes, crystal and whey) were used for cultivating algae. These samples were obtained from different regions (Zee El-Krnin Dranige, Menoufi government, Nabil textile factory, Shoubra El-Kheima, Qalubia government, Crystal Asfor factory, Shoubra El-Kheima, Qalubia government and Dairy Technology Unit, Faculty of Agriculture, Cairo University, Giza government) in Egypt, respectively. 2- Nine microalgae used in this study: A-5 isolates belonged to cyanobacteria named: Nostoc sp., Anabaena sp. (1), Wollae sp., Anabaena sp. (2), and Phormidium sp. B- 2 isolates belonged to green algae named: Chlorella sp. and Dunaliella sp.). C-two strains o