Water treatment

Water Air
Soil             Waste

The application areas of process engineering are manifold. Due to the relevance to society as a whole, the energy and environmental engineering sectors have come about in the recent past. From the environmental engineering sector, you will find the complete water treatment product range in in this sector.

Physical / chemical water treatment
Non-biodegradable organic and inorganic substances can be removed by means of physical/chemical processes. Examples of this are water softening by ion exchange and the adsorption of chlorinated hydrocarbons on activated carbon.
CE 583
  
CE 530
  
CE 300
Adsorption      Reverse osmosis       Ion exchange     
Adsorption of dissolved substances on activated carbon                      Membrane separation process for recovering the solvent from a salt solution                     Softening and desalination of water by ion exchange                                                     
CE 586
 
CE 584
Precipitation and Flocculation Advanced oxidation
Removal of dissolved substances by precipitation, flocculation and sedimentation of the flocs in the lamella separator Oxidation of organic substances with hydrogen peroxide and UV light                                                                                                                               
Mechanical water treatment
Removal of undissolved substances (solids) is effected by mechanical processes. In mechanical processes, the solids are not altered either physically or chemically. Only separation of the solids from the liquid phase (water) takes place.
CE 587
  
HM 142
  
CE 579
Dissolved air flotation                   Separation in sedimentation tanks Depth filtration  
Removal of solids from raw water using dissolved air flotation                                                               Solid/liquid separation in a sedimentation tank, visualisation of flow conditions                  Removal of solids by depth filtration (sand filter)                                                                                                   
Biological water treatment
The aim of biological wastewater treatment is the elimination of organic, biodegradable materials. This elimination is carried out by microorganisms which use organic substances as a source of food. This biodegradation also causes a conversion of materials to take place.
CE 701
  
CE 705
  
CE 730
Biofilm Process     Activated Sludge Process      Airlift reactor  
Biological, aerobic water treatment by the biofilm process: trickling filter                                     Laboratory scale wastewater treatment plant for aerobic biodegradation of organic substances                    Aerobic submerged reactor                                                                                           
CE 702
Anaerobic Water Treatment
Anaerobic degradation of organic substances in stirring tank and UASB reactor for biogas production (UASB: Upflow Anaerobic Sludge Blanket)
Multistage water treatment
Water to be treated usually contains several substances with different properties. Consequently, a single basic process is not sufficient to remove these substances. Water treatment plants are therefore generally built in several stages.
CE 581
  
CE 582
  
Water treatment plant 1                Water treatment plant 2
Three basic procedures of water treatment: depth filtration, adsorption and ion exchange        Two basic procedures of water treatment: depth filtration and ion exchange