Below is a table comparing the investment and operating costs between the current option and the option using the HPVE heat pump vacuum evaporator technology..
| Item | Current Treatment Method | Proposed HPVE Solution |
|---|---|---|
| Wastewater Volume | 100,000 kg/month | 100,000 kg/month |
| Treatment Unit Cost | 3,000 VND/kg | 373 VND/kg |
| Total Operating Cost (per month) | 300,000,000 VND | 80,791,667 VND |
| Total Operating Cost (per year) | 3.6 billion VND | 969.5 million VND |
| Water Recovery Efficiency | – | 95% |
| Initial Investment (CAPEX) | – | 3.419 billion VND |
| Depreciation Cost | – | 285 VND/kg |
| Annual Cost Savings | – | 💰 2.63 billion VND/year |
| Payback Period (ROI) | – | 1.3 years |
💡 Economic Benefits
Reduce wastewater treatment costs by approximately 73% per year
Payback period: only 1.3 years
Lower operational workload and save labor costs
Decrease depreciation and maintenance expenses
🌿 Technical & Environmental Advantages
Reduce hazardous sludge volume by approximately 90%
Achieve QCVN 40:2025 – Column A discharge standards
Reuse treated water internally, minimizing discharge to the environment
Fully automated system with scheduled CIP (Clean-in-Place) maintenance
