|   Municipal wastewater treatment  
                           Crosstek  offers a range of consultancy and engineering services relating to the design, installation, enhancement, refurbishment and replacement of municipal wastewater treatment plants.  
                          Typically, an integrated municipal wastewater treatment techniques consist of the Main Treatment process, preceded by a Pre-Treatment scheme and followed by a Post Treatment process.  
                          1. Preliminary Treatment 
                          2. Primary Settlement   
                          3. Biological Treatment 
                          4. Final  Settlement 
                          5. Tertiary Treatment 
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