Efficient methods for sewage dewatering process were investigated on both the kinds of flocculants and the pre-treatment using organic or inorganic coagulants to conditioning the sludge. And we estimated the interaction relationship between flocculant...
Efficient methods for sewage dewatering process were investigated on both the kinds of flocculants and the pre-treatment using organic or inorganic coagulants to conditioning the sludge. And we estimated the interaction relationship between flocculant and coagulant for sludge conditioning to dehydrate from sludge.
As the result, it shown that the cationic 20 mol% and 60 mol% polymeric flocculant have superior than other ionic flocculant on dewatering process for the concentrated sludge. And it is possible to optimize the dewaterability due to control for relationship between the molecular weight of flocculant and flocculation rate as a functional relation.
In the conditioning process by coagulant, polyamine and polyDADMAC as organic coagulants are available for the flocculants which have low molecular weight, but, the inorganic coagulant is useful to high molecular weight flocculants. It means that the optimization for dewatering process by flocculant and coagulant on conditioning process is very helpful to reduce the water content in sludge cake for sewage treatment.