The flocculation efficiency of compound bioflocculant by flocculant-producing bacteria |
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Authors: | MA Fang WANG Qin MENG Lu XU Yang YANG Ji-xian |
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Abstract: | The flocculation efficiency of compound bioflocculant produced by flocculant-producing bacteria was investigated in this study. Cheap cellulose was selected as the substrate for the production of a lower cost bioflocculant. The end product of cellulose decomposing bacteria was utilized as substrate for flocculant-producing bacteria. The optimum fermentation conditions were determined as follows: the initial fermentation and fermentation time was 5 d and 1 d respectively, the temperature was 30 °C, the rotation speed was 120 r/min, the amount of CaCl2 solution (10%) was 1.5 ml/L. The flocculation test indicated that the bioflocculant had high efficiency in the removal of the turbidity raw water from Songhaa River. |
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Keywords: | compound bioflocculant flocculant-producing bacteria flocculation efficiency |
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