DEVELOPMENT OF A PHOSPHATE-REMOVAL SYSTEM USING A MARINE PHOTOSYNTHETIC BACTERIUM CHROMATIUM SP

Authors
SUDO H YAMADA A KOKATSU K NAKAMURA N MATSUNAGA T
Citation
H. Sudo et al., DEVELOPMENT OF A PHOSPHATE-REMOVAL SYSTEM USING A MARINE PHOTOSYNTHETIC BACTERIUM CHROMATIUM SP, Applied microbiology and biotechnology, 47(1), 1997, pp. 78-82
Citations number
16
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Applied microbiology and biotechnology → ACNP
ISSN journal
01757598
Volume
47
Issue
1
Year of publication
1997
Pages
78 - 82
Database
ISI
SICI code
0175-7598(1997)47:1<78:DOAPSU>2.0.ZU;2-Y
Abstract
The marine photosynthetic bacterium Chromatium sp, successfully remove d orthophosphate when grown phototrophically. The phosphate-uptake rat e was almost constant at more than 5.0 mg- PO43-/l in synthetic medium . Addition of seawater causes flocculation of this strain. The success ful use of seawater as an inexpensive source of magnesium could prove to be effective in the removal of photosynthetic bacterial cells from a medium. A semicontinuous culture system was used for the removal of low concentrations of phosphate and the phosphate-uptake activity of C hromatium sp. was maintained under 0.1 day(-1) dilution rate. This str ain was also able to remove high concentrations of phosphate from dome stic sewage.