MARINE MICROALGAE CULTURE - CHAETOCEROS GRACILIS WITH ZEOLITIC PRODUCT ZESTEC-56 AND A COMMERCIAL FERTILIZER AS A NUTRIENT

In this study the employment of zeolitic products on microalgae cultur e is continued. In this case some new products are tested, especially ZESTEC-56. All of which have been prepared in our laboratory. The diat om Chaetoceros gracilis is used. A commercial fertilizer is experiment ed on as a nutrient. The optimum dose of this fertilizer has been calc ulated. The best yield (g diatom/litre) of the culture concern the zeo litic products called ZEBEN-56 and ZECER-56, although a dose of 5 mg/l iter of ZESTEC-56 produces important cellular growth, particularly whe n associated to a silicate solution.