Upgrading and modernization of sludge treatment facility and digestion
WWTP Drachten
Scope
- Design and Construct (UAV-gc)
- Process technology design
- Construction design
- MEICA design
- Construction civil works
- Installation of MEICA equipment and works
- Start-up & Commissioning
- Plant Proving period
- Maintenance
Technical Data
- CHP system for 205kWe
- Biogas pre-treatment 100Nm3/hour
- NOx emission <340 mg
- Sludge handling capacity 2,100 ton dry solids / year
- PS / WAS = 42 / 58 %
System & Technologies
- Primary sludge pumping station to PS to digestion
- Thinkening WAS with belt thickeners, including PE dosing and WAS feed pumps to digestion
- Gas treatment unit 100Nm3/hour for desulphurization and siloxane removal
- Senergie 205 CHP unit with Liebherr gas engine
- Gas quality measurement CH4, CO2, H2S and O2
- Control panels and electrical switch boards, including connection to plant SCADA system
Special Features
- Tender was awarded at Best Economic Value Proposition criteria
- At completion the plant reaches 70% energy self -sufficient operating conditions
General Data
Client
Wetterskip Fryslân, The Netherlands
Completion
September 2017
Contract value
EUR 2.2 million
Project reference Drachten.pdf