Coagulants

Avista RoQuest® membrane compatible coagulants improve the efficiency of MMF equipment by increasing particulate removal and providing a higher quality feedwater to downstream membrane systems. Adding a RoQuest liquid coagulant to feedwater causes particles to be more readily retained by MMF equipment, improving the filtrate quality fed to downstream membrane systems. Better quality filtrate can reduce cleaning frequencies and increase system run times. Studies prove that MMF equipment without coagulant addition will remove approximately 35-50% of particulates. A nominal dosage of a RoQuest coagulant may allow MMF equipment to remove over 97% of particulates.

RoQuest 3000 liquid coagulant contains a proprietary blend of organic polymers to significantly improve multimedia filter efficiency.

RoQuest 4000 liquid coagulant is an organic polymer and ferric sulfate blend used to enhance the removal of a broad spectrum of silt, organics and colloids in multimedia filters.

RoQuest® 6000 is a liquid blend of organic coagulants and ferric sulfate used to reduce turbidity and remove humic and fulvic acids in multimedia filters.