Surface Water

Surface Water

Efficient treatment processes are available to remove turbidity, solids and/or colour, to produce both process and drinking water. Coagulation – flocculation – lamella settling, direct filtration, disc and cloth filtration are applied.


Improved Heat Transfer

For open circulating cooling water systems we developed a sustainable solution to improve heat transfer. By continuously cleaning a small portion of the circulating cooling water heat exchange is much more efficient.

Operational Savings

Operational savings are related to improved heat transfer (energy savings), less maintenance requirements, a reduction of conditioning chemicals. Typical return on investment is less than one year.

Asset Management

Cooling water systems are crucial assets in most industrial applications. Bypass filtration in open recirculating cooling water systems proved to be very effective in increasing lifetime expectancy of these assets.

Feed Characteristics

For surface water treatment the solids load typically varies considerably. The surface water quality from rivers, reservoirs, is characterized by wide ranges for turbidity, organic matter, colour and suspended solids. Also water temperature is likely to vary considerably over the year. We have developed dedicated treatment processes which take into account these variations. Processes may consist of screening – coagulation – flocculation – floc separation – filtration. In some cases a direct continuous filtration may be applied after feed screening. The continuous filtration is capable of handling higher solids loadings and may therefore be used as a single process step avoiding the need for pre-treatment by settling. In order to efficiently remove colloidal matter an in line dosing of flocculants is normally projected. 

Tilted Plate Separation

 Settling of surface water for process water production. Often combined with coagulation – flocculation to remove turbidity, colour, suspended organic and inorganic matter.

Any required settling area can be accommodated by combining a set of standardized plate packs, fitted into a tank.

The optimum configuration will be determined on the basis of feed flow rate, solids concentration and density, settling rate, sludge volume and required effluent quality. 

An application questionnaire may be helpful for designing purposes. If appropriate dedicated settling tests may be useful.

Our Unique Selling Points

Process selection

Based on surface water quality characteristics the most appropriate process set-up may be selected. Fit for purpose and capable of handling feed water in the full range of water qualities. 

Reliable treatment processes

We may use a series of available treatment technologies to offer our clients the best possible and economic solution. We have developed proven coagulation, flocculation, lamella settling and direct filtration solutions. 


We are happy to collaborate with our clients to meet their objectives. And we highly appreciate their feedback!

If I have to describe Brightwork in three words, I would characterize their capabilities by: reliable, innovative and service driven. I would certainly recommend others to work with them.

Jan Boonstra

Plant operator
Wetterskip Fryslân
WwTW Franeker

My impression of Brightwork is good, they are very skilful and knowledgeable.

Mattias Feldthusen

Director Process & Product Development
Nordic Water Products AB

Would you like some further reading?

Please feel free to download this whitepaper ‘’Drinking Water Production Using continuous filtration.”