Optimal Chemical 1 - 3

There are many ways to determine the best chemical for use in a dewatering project.

Step 1a:   RDT (Rapid Dewatering Test)  --  This is a bench scale test used to determine optimal chemical and dosages for a dewatering project.  For more details, see our Testing and Evaluation section, or click here to download a PDF of our RDT Test Guide.

Step 1b:   GCT (Geotube® Cone Test)  --  This handheld test is perfect for use with a small sample.  It can be conducted in the field, and is useful for fine-tuning polymer dosage during operations.  See our Testing and Evaluation section for additional information, or click here to download a PDF of our Cone Test Guide.

Step 2:   GDT (Geotube® Dewatering Test)  --  This is a field test method used to predict  target dewatered solids in an actual application.  On a small scale, it simulates field conditions with a miniature TenCate Geotube® unit under one psi of head pressure.  This test uses a larger sample to predict the final dewatered solids.  For more details, visit our Testing and Evaluation section, or click here to download a PDF of our GDT Test Guide.

Step 3:   Calculate the volume of chemicals required to optimize dewatering, and determine the polymer feed equipment required to deliver the correct dosage. 

The next step will be to set up the Polymer Feed System for the dewatering project.  Click here for the recommended Polymer Feed System procedure.

Click here to see a flow diagram of a simple polymer make down system used to mix chemicals into a dewatering project.

GeoChemical