It is much industrially oriented. One can understand the steps involved in such Industries how they remove the wastes.

1. Waste Water Treatment In
Antibiotic Industry
B. C Muthubharathi
III B.Sc., Biotechnology

2. Antibiotic industry
• Induce bacterial resistant
• Threat to water bodies
• Recalcitrant to biological treatment
• Complicated substances

4. Biological treatment
-Why we are preferring?
• Low cost
• Highly effective
• No side effects
• Complete treatment

6. Potential of Biological process
• Compounds are complicated –
• Organic substances
• Soluble or colloidal substances
• High level of solid substances
• Bio toxic substances
• Non Biodegradable
• Bacteriostatic antibiotic

7. Methods available(COD removal)
• Hydrolytic acidification (36% - 55%)
• UABS - Upflow Anaerobic Sludge Bed reactor (80% - 90%)
• SBR - Sequence Batech Reactor (80% - 85%)
• BAC - Biological Activated Carbon
• RBC - Rotating Biological Conductors
• AOP - Advanced Oxidation Process

8. RBC Rotating Biological Conductor
• Efficient to remove waste water even at low temperature
• Preferable for Municipal and Industrial waste water
treatment

9. INFRASTRUCUTE
• 3 stages
• Rotating Biodiscs
• Single shaft spanning
• 1st stage – 12 discs
• Discs – Light weight plastic
32cm in diameter
2cm spacing from neighboring discs
• Mounted on galvanized hollow metal shaft
• 45% of discs submerged in liquid

10. Startup
• Biofilms were grown naturally with activated sludge
• Activated sludge was distributed evenly to the three basins
• Wastewater was added into the basins at the same time
• The concentration ratio of BOD5 : N : P : S in the cultivation
wastewater was maintained at 100 : 5 : 1 : 1
• Disks were rotated for one day
To allow microorganisms to attach to the surface of the discs.
• In order to satisfy the nutrient needs of the microorganisms, 2/3 of
the supernatant in the basins was replaced every day

11. Cont.
• After one week of operation, biofilms 2-3 mm
thick were formed
• After the biofilms were fully formed, the RBC
was run continuously
• Temperature varied from 10°C to 16°C. The
whole experiments lasted more than three
months.

12. RESULT
• The COD removal ratio was 70%–80% on average
• Pharmaceutical wastewater was decreased from the initial 8% to 6%
per day

13. Advantages
• High concentration of microorganisms in good living and
reproducing status
• High efficiency for degrading organic compounds
• High suitable for fluctuation in flow rate and organic concentration
• Simultaneous nitrification and denitrification accompanied by
carbon removal, low water content
• Easy operation
• Low energy consumptions
• Small land area