Expanded Perlite Filter Aid

February 20th, 2020

 

Expanded Perlite is an extremely lightweight product and is created by putting raw perlite into a furnace, which ultimately changes the chemical composition. In filter systems especially in the beverage industry, Expanded Perlite Filter Aid makes a filtering layer (cake) that transfers the filtered product from the septum/wall. If the septum has no expanded perlite filter aid, the filtrate would not be clear, in fact the liquid would be dirty, muddy and murky. Also, it is worth mentioning without using Perlite Filter Aid the solid particles in the liquid will gather together, decrease the filtering surface area, lose optimum quality and eventually block the septum.

 

 

 

The Perlite Filter Aid adds no taste or odour to the liquids that have been filtered. The material is also insoluble in mineral and organic acids at all temperatures. Another benefit of perlite filter aid is when is when it comes to the end of the filter cycle, the filter cakes remain through the liquid and prevents impurities passing.

 

filteraid cake Diagram

 

 

For more information please Contact Us

 

Lava Rock the preferred Odour Media for Anaerobic Digestion

February 5th, 2020

 

The challenge of disposal and processing the municipal gas wastes into the atmosphere from anaerobic digestion, which is a source of offensive odours and a problem to the local environment. Controlling the odours generated by landfill activities is a challenge facing the waste management industry today. Lava Rock Odour Control Media is becoming a popular choice to help with the off gasses. This is due to its key attributes including;

 

 

Low capital and installation costs

Low pressure drop during the life of the plant

Allows high bed depths and therefore small installation footprint

Low empty bed contact times

Good removal performance

Tolerance to variable and shock loads

Not seriously affected by extremes of temperature

Suitable for hydrogen sulphide and mercaptans alike

Equally suitable for industrial applications and VOC control

 

Mossel Bay Desanilisation Plant

 

Lava Rock Odour Control Media is rapidly replacing the traditional biomass support systems of peat/heather, wood chip and mussel shells. Not actively participating in the biological process pumice is not “consumed” in the manner of the alternatives and therefore has a much longer life (typically greater than 15 years). It does not compact and retains its original low pressure drop and hence low running costs.   For more information or if you require to speak to one of our Process Engineers,  please Contact Us

 
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