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	Alfa Laval AS-H belt presses are ideal for efficient dewatering of sludge from municipal and industrial wastewater treatment as well as fresh water production at waterworks. We offer two different models that comes in different sizes.

AS-H Belt Press G2

Sludge dewatering at high volume and high solids loading, with low polymer and power input.

The Alfa Laval AS-H Belt Press G2 is a sludge dewatering unit suitable for municipal and industrial applications, delivering continuous dewatering by means of two porous filter belts. The key to the performance of the Belt Press G2 is a unique sludge/polymer mixer valve that gives thorough, uniform mixing of the polymer into sludge. The operator therefore gets higher cake dry solids and better filtrate quality from the unit, with reduced polymer consumption and no need for any additional flocculator tank or mixer.

Besides the reduced polymer consumption and improved solids and filtrate, other significant benefits provided by the Belt Press G2 compared to other dewatering techniques include higher volumetric throughput and solids loading, with lower energy use. For additional ease and security of operation, belt tensioning is automatically maintained by the SmartPressTM Belt Tensioning System.

The Belt Press G2 is available in an enclosed design which ensures that odours, aerosols and spillages are contained. Features include variable drive technology, an optimised frame design in galvanised carbon steel or stainless steel, a radial grid and perforated roller to accelerate dewatering in a full-pressure dewatering zone.

Product leaflets:

Alfa Laval AS-H Belt Press G2

AS-H Belt Press G3

Extremely high volume throughputs of low solids feed into high dry cake solids.

The Alfa Laval AS-H Belt Press G3 is a high-volume sludge belt press that is designed to handle up to five times higher throughputs on the same footprint as a conventional belt press. Thanks to the independent gravity deck which can run at a faster speed than the pressure belt zone, thinner sludge, even lower than 1% dry solids, can be fed to the press at high hydraulic rates.

The result is a high-capacity machine without the usual hydraulic and loading limits experienced on two-belt machines. Even with dilute feed sludge, the unique Belt Press G3 technology can produce cake solids that are typically 1-2% dryer.

In addition to high volume and dry solids, other benefits that the efficient design gives operators include better filtrate quality, lower polymer consumption, and less energy demand since there is no requirement for a flocculation mixer.

The gravity deck also simplifies plant layout by eliminating the need for a gravity thickener or holding tank to thicken sludge prior to the belt press. Belt Press G3 is both very forgiving and flexible, making it the best choice for plants where the concentration of solids in the incoming feed varies.

Product leaflets:

Alfa Laval AS-H Belt Press G3

Alfa Laval AS-H Belt Press G3 3-Belt

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