Notice of RetractionStudy on the Biodegradability of Oxidized Sulfiting Vegetable Oil Fatliquor

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

DT-F203 fatliquor is a kind of oxidized sulfiting vegetable oil fatliquor. Taking DT-F203 fatliquor for example, the biodegradability of oxidized sulfiting vegetable oil fatliquor was studied. The methods of BOD₅/COD_Cr, respiratory curve and COD₃₀ were adopted to evaluate the biodegradability of DT-F203 fatliquor for the substrate of microorganism. The results showed that when the substrate concentration was 750mg/L and 1000mg/L, inoculation amount was 1000mg/L, pH was 7 and appropriate mineral salt medium(MSM) was provided for the growth of microorganism, the ultimate biodegradation rate of the substrate reached to 90% and 93.2%, respectively. Moreover, the effect of pH, inoculation amount and salinity on the biodegradability of the substrate was obvious. Selected through a series of experiments, the optimum conditions for the substrate biodegraded by microorganism were as follows: substrate concentration was 1000mg/L, pH was 10, inoculation amount was 1000mg/L and the salinity was 0.6% additional Sodium Chloride based on the mineral salt medium(MSM).