I work in industrial pretreatment.  We have a UASB anaerobic digestor as our primary treatment and an activated sludge system downstream as secondary polishing treatment.  We are installing a DAF inbetween our equalization and acidification tanks for the purpose of solids removal prior to the UASB.  We are having trouble planning and designing a dosing system without knowing much (anything) about polymer needs or the possible need for a coagulant.  Anyone know any good resources for this?

Thanks a lot,

Jay