Water clarifierBHQ-204 is a mixture of organic cationic polyacrylamide and its derivatives. It is an emulsion system and effectively increases solid content. It is used for wastewater treatment systems of oilfields and water treatment systems of factories and can accelerate demulsification speed of emulsified oil in wastewater and can make oil droplets rapidly flocculate to become large and floated. Used in wastewater treatment systems of oilfields, it can increase oil removal rates of equipments such as coalescers, flotation machines and hydraulic cyclones.