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Platinum 2000
PLATINUM 2000

SEWAGE TREATMENT PLANTS
Biological Aerated Filter (BAF)

The Problem:
Properties without access to mains drainage.

The Solution:
The Acorn Biological Aerated Filter plant is an economic solution for the treatment of waste for situations ranging from the single dwelling to a community of over 100 people. The standard units shown here cater for poulations of 6 to 45, for larger capacities contact us - example technical drawings available to download for populations up to 150, see download panel on right.

In an age when most people assume that all modern sewage treatment plants are more or less equal, the Platinum 2000 Series breaks the mould. It incorporates many innovative features not found in other plants currently available.

The key features of the Platinum 2000/R range are the low power consumption and reduced maintenance element. These make it the perfect choice for the small, "off-mains" community.
The ubits are designed to give minimal visual impact, with fully underground installation.

Typical applications:
From single domestic dwellings, to county clubs, hotel complexes etc, where
there is no access to mains drainage.

 
Download a technical drawing

Platinum 2000 ( 7 to 50 population)
download

Platinum 2000 ( 80 to 160 population)
download

Download a brochure
download

these are .pdf versions which you can view and print using Acrobat Reader.
The drawing file size is around 90KB which should take less than a minute to download
The brochure file size is around 720KB which should take less than 3 minutes to download

table
technical drawing
Process Description
The Biological Aerated Filter (BAF) process used in the Platinum 2000 Series is a development of the traditional trickling filter process and is widely used by the major water companies throughout the UK.

Primary Settlement Tank
The Platinum 2000 Series features a two-stage primary settlement tank, which in itself is unusual in plants of this size. Based on the principles used in traditional Septic Tanks, the primary settlement tank is designed in accordance with BS6297:1983. The strength (BOD) of the influent sewage is reduced by some 30-40%. The gross solids form a sludge at the bottom of the tank and lighter social debris forms a crust on the surface. The sludge and crust should be removed periodically in accordance with the plant design. The settled liquor that is contained between the sludge and crust passes forward for treatment in the Biological Aerated Filter.

Biological Aerated Filter
This is the treatment zone and it contains a set of inactive modular media blocks that provide a large surface area on which naturally occurring bacteria can develop. The bacteria require oxygen which is supplied by a linear low-pressure compressor via porous membranes, beneath the media bed. The bacteria naturally feed on the settled sewage to further reduce the levels of Biological Oxygen Demand (BOD), Suspended Solids (SS) and Ammonia (NH3) in order to comply with the evermore stringent requirements of the Regulatory Authorities.

Final Settlement Tank
As the bacteria in the Biological Aerated Filter dies off, it falls away from the media and is passed forward to the final settlement tank where it settles out, further reducing the level of suspended solids in the final effluent. Design features include a benched bottom to ensure concentrated settlement, and a sludge return system returning settled humus sludge back to the first stage of the primary settlement tank.

Service Agreement
Although of a minimal nature, it is advised that the plant is serviced periodically to help ensure many years of trouble-free operation. Service Agreements are available from our Head Office, or depending on geographical location, through our approved installer network.
Acorn Environmental Systems Ltd
Somerset Bridge, Bridgwater, Somerset, TA6 6LL UK
Tel: +44 (0)1278 439325 Fax: +44 (0)1278 439324
E-mail: info@acornsystems.com
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