Topic is dewatering of drilling mud and waste. need research of
mathematical solution and equation derivation for calculating
low gravity solids in drilling mud effluent. Need to see all math involved.
This stems from flocculation & coagulation of particles with a polymer
then centrifuging. Any math associated with this process is also
needed.

handbook of solids control & waste management

http://www.brandtvarco.com/html/pdf/Solids.pdf

MudWare  A collection of mud and drilling-related engineering programs
and technical information containing most of the calculations
typically used while drilling and completing a well

http://www.miswaco.com/Products_and_Services/Fluid_Engineering_Services/FluidEngineeringServicesDocuments/MudWare.cfm

Halliburtons handbook on the subject
http://www.halliburton.com/oil_gas/redbook/metric/rbbaroid.pdf