Abstract
AbstractAn advanced primary treatment process for a municipal waste water was systematically studied, using a bio‐flocculation‐adsorption, sedimentation and stabilzation process (BSS). It was shown that the organic removal efficiency was higher than that of the traditional primary treatment processes but lower than that of the traditional secondary treatment processes. Both adsorption and bio‐flocculation played an important role in the removal of pollutants. The activated sludge within the bio‐flocculation‐adsorption tank could be considered a bio‐flocculent which improved the quality of the effluent from the primary treatment process. As the effluent of the BSS process did not meet the requirements for a typical secondary effluent, the process may be regarded as an advanced (or enhanced) primary treatment process, suitable for waste water containing a high concentration of suspended solids and colloidal particles.
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