MBR Technology for On-site Wastewater Systems Technology for On-site Wastewater Systems By Reza...
Transcript of MBR Technology for On-site Wastewater Systems Technology for On-site Wastewater Systems By Reza...
MBR Technology for OnMBR Technology for On-MBR Technology for On-site MBR Technology for OnMBR Technology for OnMBR Technology for On site site site Wastewater Systems
ByReza Shams-Khorzani, Ph.D.
VP - Bio-Microbics, Inc.
9th KWEA/KsAWWA Annual Joint ConferenceAugust 29, 2017Wichita, Kansas
Decentralized Wastewater Systems
• An onsite or cluster wastewater system that is used at or near the source to treat and recycle relatively small volumes of wastewater, generally from individual or groups of dwellings and businesses
• More emphasis on treatment of wastewater and disposal of effluent than collection; collection costs < 30% of total costs
• Wastewater is managed in small quantities, typically less than 0.1 MGD per system
On-Site Treatment/Disposal Issues
• Change in habits of water usage
• Power cost
• Noise
• Odors
• Monitoring issues
Technology Selection
• Pre-engineered pre-packaged treatment systems
• Capital and operation cost for 25 year life
• Process reliability – extended warranty
• Remote monitoring of operation
• Technical support -24/7 service, 800#
• Reference from current operators!
Immersed Membrane MBRHigh surface area – reduced energy consumption
Permeate
Recirculation
low vacuum pressure(up to 7.5 psi)
Bioreactor
Commercialized 1990’s
Why MBR?
• The Highest, Consistent Effluent Quality BOD < 5 mg/L TSS < 2 mg/L Turbidity < 0.5 NTU Fecal coliform < 200 CFU/100 mL (without
disinfection) Nutrient removal capability
Why MBR?
• Smaller footprint (compact process)• Simple to operate (compared to other
processes trying to achieve same effluent quality)
• Robust biological process• Energy efficient
MBR for On-Site Applications
• Pre-engineered modules ship install-ready
• Simple to install
• Designed specifically for both new and existing onsite tank configurations
• Minimum number of robust mechanical devices
MBR for On-Site Applications
• Completely automated
• Extended operation without needs for membrane cleaning and de-sludgeing
• Safe to use
• Cost effective
BioBarrier™ MBR Markets
• Single-Home Residential
• Clustered Residential
• High-Strength Commercial
BioBarrier™ Basic Components
• SaniTEE® Screen• Aeration Tank with Anoxic Zone• Membrane Module• Filtrate Tank (Permeate Pump)• Control• Supplemental Aeration for HSMBR
Single-Home BioBarrier™
Parameters Influent EffluentFlow, gpd 300 300BOD, mg/L 336 2.9TSS, mg/L 250 <2NH3-N, mg/L 34 <0.5Total Nitrogen, mg/L 55 6.7Q - NH3-N, mg/L 3 <0.1No of days in service 376 376
Matunuck Oyster Bar – Rhode IslandBioBarrier® 6.0
Kitchen
Rest Rooms
GreaseTrap
Settling Tank Dosing
TankAnoxic Aeration
DosingTank
Leached field
5,000-gal
9,000-gal
TankSettling Tank
7,000-gal
Matunuck Oyster Bar – Rhode IslandBioBarrier® 6.0
Parameters Design Operation*Flow, gpd 6000 2800-winter
5500-summerInfluent BOD, mg/L 1800 1250
Influent TKN, mg/L 114 96Influent FOG, mg/L 300 480Effluent BOD, mg/L 30 <4Effluent TSS, mg/L 30 <4Effluent FOG, mg/L 5 2.1Effluent NH3-N, mg/L <10 1.4Effluent TN, mg/L 10 7.6
* Monthly data, June 206 – May 2017* Lunch and Dinner
Gale Bailey Elementary School – MarylandBioBarrier® 4.5
Kitchen
Rest Rooms
Wet Well Settling Tank Screen Tank
Anoxic AerationDosingTank
Leached field
Carbon Feed
8,000-gallon
3,000-gal
Gale Baily Elementary School – MarylandBioBarrier® 4.5
Parameters Design OperationFlow, gpd 3500 2100*Influent BOD, mg/L 130 260Influent TKN, mg/L 90 130Effluent NH3-N, mg/L <5 <0.5Effluent TN, mg/L 10 <5 w/ carbon
35 w/o carbon
Design vs OperationStart-up July 2015
• Feed: 5-day a week, from 8 AM to 3.5 PM. • Summer and holidays: very low flow.