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TECHNICAL DESCRIPTION

The detailed design of the filter fixed internals is

critical to the successful long term operation of

the filter. Both top and bottom distributors have

triple functions.

Our top distributer design ensures even flow onto the

top of the media bed. The media used is selected and

graded to a specific size distribution, determined by

Enhydra, for each individual duty. The upper media

bed will be graded for optimum oil removal, the lower

media bed graded for the necessary solids filtration.

The bottom lateral design ensures even collection

across the media bed. Most importantly it optimises

the vigorous scrubbing of the media using a

combination of gas and water during the backwash

cycle with sufficient velocity to fully fluidise the bed

during wash water cycle.

During the backwash oil and solids contaminants

are released from the filter bed and flushed to the

backwash collection system. The backwash cycle is

triggered by either a timer or differential pressure

across the filter bed with either raw feed water or clean

water, the most appropriate selection being made for

each installation.

OVERVIEW

Enhydra has many years experience in the design of produced water systems for the removal of oil and

solids from water. Our latest generation design principles eliminate the need for internal or external rotating

equipment through the use of multiphase (gas/liquid) backwash feed. Each filter is uniquely sized and

designed for the individual challenges of specific applications. Water conditions vary from project to project;

by offering filters designed for individual applications, Enhydra filters outperform similar off-the-shelf items.

NUTSHELL FILTERS

Tel: +44 1454 262600

sales@enhydra.co.uk

www.enhydra.co.uk

Woodend HouseWoodend Lane

CromhallGloucestershire

UK, GL12 8AA

OUTLET

COARSEGARNET

NUTSHELL

FINEGARNET

MANWAYINLET

CONCRETESUBFILL

COLLECTORSYSTEM