The Groundhog mechanical Slurry Separator operating principle is based on the proven technology of the National Institute of Agricultural Engineering design for Slurry Separators. The fibre rich solids produced from the slurry can be stacked for easy storage and the now reduced volume of nutrient rich liquid can then be managed more easily than when it was in slurry form. 
The Separator is used around the world for gross solids Separation in all types in Industries. Typical applications for the Separator are on Livestock farms, Digestate produced from Biogas plants, Vegetable processing, Slaughterhouse waste, Livestock Auction markets etc. The list of applications is endless (it has even been used in coffee bean processing). 
A new advanced version of the separator is now available. The Groundhog ‘Superdry’ Separator will produce an even drier solids fraction than the standard machine. 
Low running and maintenance cost associated with a Separator that was designed by us to be as trouble-free as possible to operate and maintain ensures that over the last 30 years it has been the Separator of choice for many Industries. 

The main features of the Groundhog Separator: 

An established method of Mechanical separation with machines still in daily operation that were originally installed in the 1980’s 
Well engineered robust construction 
Galvanised steel or stainless steel manufacture 
Easy operation and low maintenance cost 
All wet side fixings stainless steel 
Low power consumption 
Ability to handle sand in livestock bedding 
Cam-lock system designed for easy screen changes 
Spray bar system available for grease/fat problems 
Large diameter pipework and overflows fitted to accept flows from pumps up to 15kw 
Automatic or manual operation 
Frost protection designed in 
Low speed so minimum wear and tear 
Auto bearing Greasing system available 
Spares for BKW and Wright-rain Separators are compatible 
Total system design service including Pumps, Mixers, Steelwork and control systems 
Produces 18-23% dry solids in standard model and up to 30% in the ‘Superdry’ model 

Advantages of separation in Livestock applications: 

Reduces liquid storage required between 20% and 30% 
Stackable solids of up to 4 meters height 
Nutrient rich dilute liquid fraction immediately available to root systems when applied to land 
No fibre to settle on plant foliage where ammonia and nitrogen are lost to atmosphere 
Separated liquid can be stored for longer with no ‘Crusting’ 
Up to 90% of the original slurry nitrogen available in the liquid fraction 
Liquid fraction is more dilute so smaller pumps and application methods suitable 
Separated fibre fraction can be composted and sold or can be spread on land as a fertiliser to enhance soil structure. 
Separated liquid can be used in flushing and washdown applications 
If stored outside the solids faction will not return to slurry 


Digestate is a very rich fertiliser which has more nutrient value than raw slurry. Once the Digestate is separated the liquid content becomes an even higher concentrated fertiliser. There are specifications governing the use of Digestate as a fertiliser but so long as the Biogas plant meet this criteria it’s digestate will be regarded as having fully recovered and cease to be regarded as a ‘waste’ product. 
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