Solid-Liquid Separation

The separation of solids from liquids plays an important role in almost every area of chemical, waste water and environmental technology.

In many chemical processes mechanical solid-liquid separation usually follows a crystallization/precipitation step and is itself followed by a drying step. Therefore, choice of the optimum equipment for solid-liquid separation is of great significance for the complete process. Solid-liquid separation is employed for recovering solid products as well as for purifying waste water streams.

A&D AS Solutions Process Industries has mastered the essential steps required for the development of an optimum solid-liquid separation process. In our laboratories the properties of the suspension are characterized and evaluated. A suitable principle of separation will be determined to obtain the product within the desired specifications. Based on the data investigated, the optimum equipment will be chosen and scaled-up to the desired capacity.

A&D AS Solutions Process Industries will gladly assist you in choosing the optimum equipment for solid-liquid separation in your process. We have many years of experience in providing solutions in this field.

Our proficiencies:

• Pretreatment of suspensions
  • Precipitation, flocculation, coagulation
• Filtration
  • Cake filtration
  • Clarifying filtration
  • Filtering centrifugation
• Sedimentation
  • Thickening
  • Centrifugation
• Flotation
  • Dissolved-air flotation
  • Injection flotation
• Dewatering of filter cakes
  • Mechanical
  • Thermal (drying)

Our services:

• Concept studies encompassing the complete process chain
• Preliminary selection of qualified processes and equipment
• Characterization of a suspension
• Laboratory experiments
• Experiments in our local pilot plants
• Design of equipment, scale-up
• Pilot production

Technologies – Filtration laboratory

In our filtration laboratories – using the most modern equipment – we are able to investigate the performance of your material with almost any current solid-liquid separation principle available. This can already be done using only a very small amount of material.

Laboratory equipment:

• Filtration
  • Pressurized nutsche filter with a pressure permeability cell (Fig.1)
  • Investigation of the filtration and dewatering performance of compressible filter cakes
  • Software tools for evaluation of experiments and choice of the
    optimum apparatus
• Centrifugation:
  • Laboratory centrifuges for sedimentation and filtration
  • Conical basket centrifuge
  • Disk stack separator