Clinoptilolite in Drinking Water Treatment for Ammonia Removal

Removal of pharmaceuticals during drinking water treatment.

The elimination of selected pharmaceuticals (bezafibrate, clofibric acid, carbamazepine, diclofenac) during drinking water treatment processes was investigated at lab and pilot scale and in real waterworks. No significant removal of pharmaceuticals was observed in batch experiments with sand under natural aerobic and anoxic conditions, thus indicating low sorption properties and high persistenc...

Drinking water treatment processes for removal of Cryptosporidium and Giardia.

Major waterborne cryptosporidiosis and giardiasis outbreaks associated with contaminated drinking water have been linked to evidence of suboptimal treatment. Cryptosporidium parvum oocysts are particularly more resistant than Giardia lamblia cysts to removal and inactivation by conventional water treatment (coagulation, sedimentation, filtration and chlorine disinfection); therefore, extensive ...

A Review on the Design Criteria of Biological Aerated Filter for Cod, Ammonia and Manganese Removal in Drinking Water Treatment

The design criteria of biological aerated filter (BAF) were reviewed in order to design an effective process for organic and inorganic contaminants removal in drinking water, particularly, COD and ammonia removal. The review was mainly focused on the height and diameter dimensions for the BAF process system as well as the removal efficiency and the type of media used. In addition, the review al...

Removal of cationic surfactants from water using clinoptilolite zeolite

Batch and column experiments were conducted to evaluate the efficiency of a clinoptilolite zeolite as an inexpensive sorbent material to remove cationic surfactant from water. With an initial surfactant concentration greater than its critical micelle concentration, the removal of surfactant is achieved by admicellar sorption onto the zeolite surface. Although the sorption capacity of hexadecylt...

Removal of ammonia from drinking water by biological nitrification in a fixed film reactor