POTENTIALS OF PHOTOTROPHIC BACTERIA IN TREATING PHARMACEUTICAL WASTEWATER

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MADUKASI E.I.; DAI X.; HE C.; ZHOU J.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2010 | Volume:7 | Issue:1 (25) Page(s): 165-174

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Title

POTENTIALS OF PHOTOTROPHIC BACTERIA IN TREATING PHARMACEUTICAL WASTEWATER

Author(s)

MADUKASI E.I. | DAI X. | HE C. | ZHOU J. | Issue Writer Certificate

Keywords

BIOTREATMENT

MICROAEROBIC LIGHT

PHOTOSYNTHETIC BACTERIA

PURPLE NON SULFUR BACTERIA

STATIC LIGHT EXPOSURE REACTOR

Abstract

A suspended growth photobioreactor was utilized to treat pharmaceutical wastewater by a wild strain purple non-sulfur photosynthetic bacterium isolated from the soil. The strain was named Z08 and identified as Rhodobacter-sphaeroides by 16SrDN. The photobioreactor was illuminated externally with two (40 W) fluorescent compact light sources on both sides. Its operation pH and temperature were between 6.8 – 7.0 and 20 – 30°C, respectively. Optimum growth of the isolate was obtained after enrichment of the pharmaceutical wastewater with 0.5 % ammonium sulfate and 0.1 % yeast extract under microaerobic optimum light (6000 lx) condition at 5d retention. Using these optimum conditions, the maximum dry cell weight and chemical oxygen demand percentage removal were 880 mg/L and 80%. Chemical analysis of the culture after treatment of the enriched and non-enriched wastewater showed the crude protein content of the biomass to be 54.6 % and 38.0 %, respectively. This study proved that PHOTOSYNTHETIC BACTERIA could transform complex wastewater that contains recalcitrant organic compounds with a resultant recovery of useful products.

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APA: Copy

MADUKASI, E.I., DAI, X., HE, C., & ZHOU, J.. (2010). POTENTIALS OF PHOTOTROPHIC BACTERIA IN TREATING PHARMACEUTICAL WASTEWATER. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 7(1 (25)), 165-174. SID. https://sid.ir/paper/285222/en

Vancouver: Copy

MADUKASI E.I., DAI X., HE C., ZHOU J.. POTENTIALS OF PHOTOTROPHIC BACTERIA IN TREATING PHARMACEUTICAL WASTEWATER. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2010;7(1 (25)):165-174. Available from: https://sid.ir/paper/285222/en

IEEE: Copy

E.I. MADUKASI, X. DAI, C. HE, and J. ZHOU, “POTENTIALS OF PHOTOTROPHIC BACTERIA IN TREATING PHARMACEUTICAL WASTEWATER,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 7, no. 1 (25), pp. 165–174, 2010, [Online]. Available: https://sid.ir/paper/285222/en

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