Treatment of Sugar Waste Using Anaerobic Filter

Abstract

Treatment Of Sugar Waste Using Anaerobic Filter from the sugar industry was treated in a UASB reactor seeded with non-granular anaerobically digested sewage sludge. During the study period, the ambient room temperature was between 29-37 oC.

Within 95 days of operation, successful reactor start-up with granulation was achieved. With an OLR of 0.5 g COD / L, the reactor was started. d. And up to 16 g COD / L was loaded. d.

The HRT was reduced from 48-8 h during start-up. As 6 hours, the optimum HRT was found. The loading at constant HRT of 6 h was increased after the start-up by increasing the feed’s COD concentration. A maximum efficiency of COD removal of 89.4% was achieved.

The rate of COD removal increased linearly as OLR increased. During the treatment, the ratio of VFA to alkalinity varied between 0.19-0.33. Maximum production volumetric biogas was 4.66 L / L. d. At 16 g COD / L OLR. d. The methane content in the biogas was found to be between 73 and 82 percent at stable conditions.

After reaching a 16 g COD / l OLR. d. The loading increased by reducing HRT to 4 hours. Reactor performance increased to 24 g COD / L when loading. d. It was concluded that wastewater from the sugar industry could be treated at a maximum load of 16 g COD / L. d. At low ambient temperature HRT of 6.

Conclusion

The start of a UASB reactor can be achieved within 99 days with anaerobic nongranular sludge and wastewater from the sugar industry as a substratum. UASB design is capable of efficiently treating wastewater in the sugar industry up to an OLR of 16 g COD / L. d. With a COD removal efficiency of 89% at a much lower HRT of 6 h. Biogas rich in methane (more than 75 %) can be produced at 4.66 L / L. d.