SSI EEVOLVED MBBR ETP Case Study

By: WebFx
Post Date: September 12th 2022

System designed for confidential Knit-Dye client with 220m3/hr capacity

PROJECT SCOPE

SSI designed and supplied a two-story biological ETP utilizing Moving Bed Biofilm Reactor technology. The system was designed to fit in a land area of ~10,000ft2 with a total ETP HRT of about 30 hours.

DESIGN BASIS

• Design Flow = 220 m3/hour (5,280 cmd)
• PHF = 1.25x Design Flow
• BODinlet = 500ppm
• BODeffluent = 30 ppm
• CODinlet = 1,500 ppm
• CODeffluent = 150 ppm
• TSSinlet = 500 ppm
• TSSeffluent = 50 ppm
• Tempinlet = 45C
• Tempeffluent = 35C
• pHinlet 9-12 su
• pHoutlet = 6-9 su
• TDSinlet = 3,000 ppm

SSI DESIGN FEATURES

• Advanced high-rate screening
• IE3 electro-mechanical
• Unique waterfall cascades to assist with cooling
• Standby capacity on all blower and pump systems
• 2-stage EQ for improved flow and cooling characteristics
• Patented PTFE Aeration Systems
• Fully automated operations
• 2-stage MBBR
• improved biological acclimation and mixing characteristics
• Automated Equipment cycling

BENEFITS OF INSTALLED SYSTEM

Easy Operation

Minimum adjustment needed on site. No MLSS, RAS,
SRT, F:M

Reduced Energy Consumption

No RAS pumps, increased oxygen transfer, patented
SSI Fine Bubble integration, low waste sludge

Reduced Maintenance

Use of PTFE membranes, No media replacement (no
attrition or breakdown)

KEY FACTS & FIGURES

• Land Area – 125-ft x 80-ft (~10,000ft2) < 2sf per cmd design capacity
• Total ETP HRT ~ 30 hours
• Installed power = 0.06 kW installed per m3 treated
• < 0.5 kwhr/m3 design capacity
• Sulfuric acid H2SO4 (pH) ~ 0.03 ml/L
• Ferric Chloride (FeCL)+ Polymer (Decolorant) ~0.01 ml/L
• COD effluent , 80 ppm
• Sludge – ~0.9% SS, SVI = 130 mL/g
• BOD < 20 ppm