Phosphorus Removal

Blue Water Technologies have a patent pending process for removing Phosphorus from waste water plants using traditional reagents and a moving bed sand filter.

The Blue PRO™ process can remove phosphorus from wastewater streams to meet the most stringent permit limits. Typical applications are 1) in municipal wastewater plants as tertiary treatment for phosphorus removal and 2) in wastewater facilities at food processing plants for phosphorus removal. Blue PRO™ works on both high and low influent concentrations of phosphorus. Blue Water Technologies has piloted at multiple municipal waste water treatment plants and achieved P reduction to less than 60 ppb.

In addition to phosphorus, the Blue PRO™ process has been shown to significantly lower BOD and turbidity in wastewater streams. Blue PRO™ does not affect transmissivity for UV disinfection.

Arsenic Removal

Blue Water’s Blue PRO™ process efficiently removes arsenic from drinking water at high flow rates and low concentrations. Blue PRO™ has been shown to lower influent arsenic concentrations of 40 ppb to 3 ppb.

Nitrate Removal

The Blue NITE™ process is a modification of the Blue PRO™ process wherein a carbon source such as methanol is added upstream of the filter to stimulate denitrifying organisms to reduce levels of Nitrate down to 0.3 mg/l N. The denitrifying process can occur concurrently with the phosphorus removal in the same filter.

The Blue PRO™ and  Blue NITE™process features the Centra-flo™ gravity sand filter

The Centra-flo gravity sand filter is a continuously cleaned type granular media filter and it can be supplied in a down-flow configuration or an up-flow configuration and these can be viewed in more detail by visiting their website at www.centra-flo.com The following graphic describes the main components of the up-flow design filter. The filters are available in various materials of construction such as FRP and stainless steel.

A typical application would be tertiary treatment of waste water treatment plant effluent providing filtration to remove suspended solids carried over the weirs on the sedimentation type clarifiers.

	Filtrate Rejects High Quality Silica Media Drain Airlift Central Feed Chamber Influent Headloss Sight Guage Splash Guard Adjustable V-Notch Weir
A Centra-flo™ filter installation utilizing above-ground tanks. (Note: Designs are also available for installation in concrete tanks.)