caa a22 4500 475783840 CHVBK 20180406123652.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1023/A:1008188311681 doi (NATIONALLICENCE)springer-10.1023/A:1008188311681 Treatment of high strength organic wastewater by a mixed culture of photosynthetic microorganisms [Elektronische Daten] [James Ogbonna, Hitoshi Yoshizawa, Hideo Tanaka] The growth characteristics and nutrient removal fromsynthetic wastewater by Rhodobacter sphaeroides,Chlorella sorokiniana and Spirulinaplatensis were investigated under aerobic dark(heterotrophic) and aerobic light (photoheterotrophic)conditions. Both in terms of economy and efficiency,aerobic dark conditions were the best for wastewatertreatment using R. sphaeroides and C.sorokiniana, but light was necessary with S.platensis. Neither growth nor nutrient removalcharacteristics of the cells were affected insynthetic wastewater with as high as 10 000 ppmacetate, 1000 ppm propionate, 700 ppm nitrate and 100 ppmphosphate. Although R. sphaeroides and C. sorokiniana showed good growth in syntheticwastewater containing 400 ppm of ammonia, S.platensis was completely inhibited.When grown as a monoculture, none of thestrains could simultaneously remove acetate,propionate, ammonia, nitrate and phosphate from thewastewater. R. sphaeroides could remove allthe above nutrients except nitrate, but the rate of removal was relatively low. The rate of nutrientsremoval by C. sorokiniana was higher, but theorganism could not remove propionate; S.platensis could efficiently remove nitrate, ammoniaand phosphate, but none of the organic acids. A mixedculture of R. sphaeroides and C.sorokiniana was therefore used for simultaneousremoval of organic acids, nitrate, ammonia andphosphate. The optimum ratio of the cells depended onthe composition of the wastewater. Kluwer Academic Publishers, 2000 organic wastewater treatment nationallicence photosynthetic cells nationallicence monoculture nationallicence mixed culture nationallicence photoheterotrophic nationallicence heterotrophic nationallicence Ogbonna James Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut Yoshizawa Hitoshi Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut Tanaka Hideo Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 277-284 0921-8971 12:3-5<277 2000 12 10811 https://doi.org/10.1023/A:1008188311681 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008188311681 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ogbonna James Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut NATIONALLICENCE 700 1- Yoshizawa Hitoshi Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut NATIONALLICENCE 700 1- Tanaka Hideo Institute of Applied Biochemistry, University of Tsukuba, Tsukuba City, Japan aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 277-284 0921-8971 12:3-5<277 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer