Effluent reuse in theme park Efteling, towards an extensive P removal scheme
The popular theme park Efteling in Kaatsheuvel (the Netherlands) launched a drought prevention program by using effluent from WWTP Kaatsheuvel for replenishing water in the theme park ponds since 1997. Particular focus towards P removal to levels below 0.10 mg/l total P to prevent eutrophication in the ponds.
Bypass filtration in cooling water systems
Bypass (bio)filtration in open recirculating cooling water systems proves to be very effective in optimizing the operations. Savings are related to less chemicals dosed, higher energy transfer rates, less maintenance costs and higher anticipated economic lifetimes of the heat exchangers.
Drinking Water Production Using Moving Bed Filtration
Small to medium sized moving bed filter units for surface water treatment proved to be very effective in case of low to moderate solids loadings. Moving bed filtration is used in flocculation filtration mode with in-line chemical dosage to remove turbidity, colloidal and suspended solids and phosphorus at high removal efficiencies.
Making the most of continuosly Moving Bed Polishing (Bio)filters for N and P removal, using Sand-Cycle Remote Control
More stringent effluent criteria for N and P has led to the increased implementation of tertiary moving bed biofilters to remove phosphorus and nitrogen.
In order to meet these stringent criteria it is important to optimize day-to-day operations, reduce down-time of equipment, have access to real-time status updates and act quickly to remedy failures. Field surveys reveal that many plants suffer from non-optimal operating conditions, which may last long before being detected.
As a remedy an "internet-of-things" based monitoring and control system is successfully implemented: Sand-Cycle, a remote control system, based upon radio frequency ID technology.