Projects
WCG has established high performing systems with detailed treatment performance data from EPA monitoring.
Key benefits of WCG systems include:
- Globally unprecedented wetland treatment performance
- Savings of over 70% on of upfront capital expenditure
- Performance exceeding EPA requirements over the long-term
- Reduction in greenhouse gas intensive energy and chemical use
A comparative performance assessment of municipal sewage treatment of three systems is given below. These include:
- West Byron STP: BNR plus wetland and reuse system
- South Lismore STP: 70 year old trickle filter plus ponds and advanced wetland
- East Lismore STP: BNR (without WCG solution)
Figure 1: EPA Performance Results (summary)
In this summary total nitrogen, phosphorous and suspended solids are presented:
Figure 2: Capital Cost Comparative: Upgrade of South Lismore STP
The capital cost estimates comparing WCG integrated solution with that of a traditional STP upgrade:
