NDLI: Production of Bioflocculant Using the Effluent from a Hydrogen-Producing Bioreactor and its Capacity of Wastewater Treatment

Content Provider	IEEE Xplore Digital Library
Author	Shuangshi Dong Nanqi Ren Aijie Wang Fang Ma Dandan Zhou
Copyright Year	2008
Description	Author affiliation: Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin (Shuangshi Dong; Nanqi Ren; Aijie Wang; Fang Ma)
Abstract	In this study, compound bioflocculant-producing bacteria, named $F_{2}-F_{6},$ were adopted as bioflocculant (BF) producer. In order to domesticate the strains of $F_{2}-F_{6}$ to utilize the effluent from a hydrogen-producing bioreactor as the only carbon resource, a method of poor-rich alternative nutrition was developed. After acclimation, the optimum fermentation conditions were investigated using only the effluent as culture substrate. The optimum fermentation conditions were to be initial pH of 7.0, fermentation time of 21 h, rotation speed of 140 rpm, temperature of 30degC and no sterilization of the culture. Under these conditions, the maximum flocculation rate of the BF produced was over 93.0%. The weight-average molecular weight of BF was more than 106 Da according to the result of molecular exclusion chromatography. It was also found that the bioflocculant has high capacity of turbidity-removal, color- removal and organic-removal up to 98.7%, 90.3% and 62.6% respectively when it was used to treat domestic wastewater, black ink wastewater and Chinese medicine wastewater.
Starting Page	3018
Ending Page	3022
File Size	216691
Page Count	5
File Format	PDF
ISBN	9781424417476
DOI	10.1109/ICBBE.2008.1086
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fungi Microorganisms Costs Bioreactors Production Effluents Wastewater treatment Inductors Sugar Testing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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