MEMBRANE BIO-REACTOR

MEMBRANE BIO-REACTOR

• 1.
  MEMBRANE BIO-REACTOR AN EXCELLENTOPTION FOR WASTE WATER TREATMENT UNDER GUIDANCE OF– Dr. S. M. Chavan By Pratiksha A. Patil Roll No. 500904
• 2.
  Introduction Urban wastewater isusually treated by Conventional Activated Sludge Process. MBR is improvement of CASP. Membrane bioreactor (MBR) technology, which combines biological-activated sludge process and membrane filtration has became more popular, abundant, and accepted in recent years for the treatment of many types of wastewaters It is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment with plant sizes up to 80’000 population equivalents.
• 3.
  Why MBR? The Highest,Consistent Effluent Quality  BOD < 5 mg/L  TSS < 2 mg/L  Turbidity < 0.5 NTU  Significant nutrient removal capability  Complete virus removal  Reduction of pharmaceutical byproducts
• 4.
  MBR membrane configurations MBRConfiguration:- (a) multi-tube (MT), (b) hollow fiber (HF) and (c) flat sheet (FS).
• 5.
  Process configuration Two mainprocess configuration of biomass rejection MBRs are 1) Submerge or immersed MBR 2) External or Side-stream MBR
• 6.
  Treatment Process andBasic Design Principles
• 7.
  Parameters affecting themembrane characteristics in MBR 1) Physical parameter • Pore size and distribution. • Porosity/roughness. • Membrane configuration. 2) Chemical parameters • Hydrophobicity. • Materials.
• 8.
  Case Study • Objective:- To monitor chemical oxygen demand (COD), biological oxygen demand (BOD5), suspended solids (SS), and antibiotic concentrations of wastewater released from an antibiotic manufacturing factory. • Material and Method 1. Raw Material:-This factory primarily produces Tienam, which contains carbapenems. Tienam is the antibiotic containing a mixture of imipenem and cilastatin at a 1:1 ratio w/w. 2.Membrane Bio-reactor/ Filtration Method
• 9.
  Imipenem wastewater Cilastainwastewater PH 6.8-7.3 PH 6.8-7.3 Content Avg value Std deviation mgL-1 mgL-1 mgL-1 Content Avg value Std deviation mgL-1 mgL-1 mgL-1 SS in between 23. 7 --- 16-32 SS in Between --- --- 4-21 COD in Between 3929 866 2682-5428 COD in Between 4245 1484 2262-4607 BOD5 in Between 2383 776 1282-3482 BOD5 in Between 1760 750 617-3246 Avg BOD5/COD value is 0.6 Avg BOD5/COD value is 0.41 Result
• 10.
  Cleaning Procedure &Reuse potential of MBR  Cleaning Procedure of MBR:-  Every six to twelve months Requires chemical(s) cleaning  Remove module(s)  Reuse potential of MBR:- Completely acceptable water. After softening treatment use for industrial purpose. Thus, large quantity of water can saved.
• 11.
  Advantages & Disadvantage The major ADVANTAGE of MBR:- High quality effluent. High loading rate capacity. Reducing tertiary filtration and secondary clarifiers. Reducing plant budget. Easy operation Easy modulation  The major DISADVANTAGE of MBR:- Increase capital cost (Membrane cost) Relatively expensive to install and operate. Membrane may be sensitive some chemical. Require pre-treatment. Frequent membrane monitoring and maintenance.  Membrane fouling.
• 12.
  Current Status &Conclusion  Current status of MBR:- About 250 currently working in various part of globe. Japan use most MBR system are use for water recycling in building. In India MBR use in hotel industries, residential township, and housing complexes, gardening, flushing and other cleaning purpose.  Conclusion:- MBR is an attractive and feasible technology for on-site treatment applications.  Consistent nutrient removal is possible with MBR system…..Water reuse MBR is more effective in treating wastewaters that are challenging for conventional biological treatment systems.
• 13.
  References  Membrane BioreactorPublished on SSWM Compiled by:--Beat Stauffer (seecon international gmbh) , Dorothee Spuhler (seecon international gmbh)  Authors: Thomas C. Schwartz and Brent R. Herring , Woodard and Curran Incorporated Ricardo Bernal and Janet Persechino , GE.  Chettiyappan visvanathan Environmental Engineer and Management program , school of environment, research and development.  Michael Moreau J&R Sales and Service Coalition for Buzards Bay’s 2011 Decision Makers Workshop Series March 24, 2011  Membrane Bio-reactor for wastewater treatment 1st edition 2013 Dr. Jixiang Yang and bookboon.com  Simon Judd Centre for Water Science, Cranfield University, Cranfield , Bedfordshire, MK43 0AL, UK  Chia-Yuan Changa*, Jing-Song Changa, Saravanamuthu Vigneswaranb, Jaya Kandasamyb a Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan  Shu-Fen Cheng a, Yi-Chao Lee b, Chih-Yang Kuo b, Ting-Nien Wu b, *a Department of Environmental Engineering and Management, Chaoyang University of Technology, 168 Jifeng E. Rd., Wufeng District, Taichung 41349,Taiwan, ROC b Department of Environmental Engineering, Kun Shan University, 195 Kunda Rd., Yong-Kang District, Tainan 71070, Taiwan, ROC