THE IMPROVEMENT OF ALGAE CONCENTRATION METHOD AND THE WATER CHARACTERISTICS DURING THE ENRICHMENT PROCESS

A method for concentrating algae solution was introduced for the production of biofuels． Algae solution in the water bloom course was concentrated． Enrichment process indicates that: When the temperature was in the range of 21. 5 ～ 22. 9 ℃， the dissolved oxygen in the supernatant was in the range of 19. 91 ～ 4. 39 mg /L; pH was in the range of 9. 98 ～ 10. 54; the conductivity was in the range of 1 321 ～ 1 459 μS /cm; the oxidation-reduction potential was in the range of － 23. 6 ～ 113. 1 mV; the concentration mutiple was in the range of 26. 58 ～ 28. 95． When the initial concentration of algae was 0. 94 g / L，the mean dry weight of algae solution was 25. 47 g /L after concentration． The conclusion was that the settlement system ran stable for a long time and was suitable for the concentration of algae．