Why Cellulose Filter Aids?

The specific consumption of organic filtering aids is up to 70% lower compared to mineral products. This not only means reduced consumption quantities in practice, but also significantly lower amounts of sludge, which can be costly and elaborate to dispose of.

Reduced amounts of sludge also contain less residual filtrate, which in practice translates to reduced product losses through disposal of the moist filter sludge.

Filter cakes made of organic filter aids can be effectively compacted or even briquetted. This allows for a significant portion of valuable residual filtrate to be recovered, leading to further cost savings.
Due to the fibrous structure of organic filter aids, stable and defined compacts or briquettes are obtained, which can often even be profitably utilized.

Reduced consumption when using cellulose filter aids means that:

• less waste
• lower disposal costs
• less product loss
• efficient and economic filtration

If the filter sludge can be pressed, cellulose filter aids are usedto higher yields of recovered residual filtrate

• higher yields of recovered residual filtrate
• more stable compacted material or briquettes which can, in part, be profitably recycled
• less wear on the presses used for briquetting.

Since plant-based filter aids are completely biodegradable, uncontaminated filter residues can be partly profitably used through field application, composting, or even animal feeding. 

On the other hand, contaminated filter residues can be thermally utilized cost-effectively due to the BTU (British thermal unit) value of organic filter aids and extremely low ash content. 

In individual cases, valuable materials can be recovered through the residue-free incineration of organic filter aids which are previously removed using a filtration process (example: catalyst filtration).

Cellulose filter aids

• can be disposed of easily, economically and, in part, even profitably
• make it possible to completely recover valuable processing aids (such as catalysts)
  

In contrast to many, conventional mineral filter aids which have been classified as "carcinogenic" for years the lack of dangerous, crystalline substances when handled in the recommended manner, ensures organic filter aids to be occupationally harmless.

In practice, due to their fibrous structure, the jagged surfaces as well as the large pore volume, higher flow rates are usually obtained with organic filter aids as compared with mineral products.

At the same time filters last longer. Due to their structure the fibers react elastically to pressure surges. They bridge damaged spots in the filter material and through the use of an inner bonding make subsequent cleaning of the filter cake easier.

Since organic filter aids are soft and nonabrasive, pumps, pipes and conveying elements are well-protected .