Controlling of two destructive zooplanktonic predators in Chlorella mass culture with surfactants

Abstract Background Predatory flagellates and ciliates are two common bio-contaminants which frequently cause biomass losses in Chlorella mass culture. Efficient targeted ways required to control these contaminations cultivation aiming for biofuel production especially. Results Five surfactants were tested its ability bio-contaminations All five able eliminate the contaminants at a proper concentration. Particularly minimal effective concentrations of sodium dodecyl benzene sulfonate (SDBS) completely Poterioochromonas sp. Hemiurosomoida 8 10 mg L −1 , respectively, yet photosynthesis viability was not significantly affected. These results further validated cultures 5, 20, 200 m 2 raceway ponds. Conclusions A chemical method using SDBS as pesticide predatory flagellate or ciliate contamination culture proposed. The helps sustained microalgae utilization, especially production.