Which items are adjusted in the enhanced coagulation process?

The enhanced coagulation process primarily involves adjusting the coagulation dosage and pH to optimize the removal of dissolved organic material from water sources. By modifying the amount of coagulant added, water treatment operators aim to improve the effectiveness of particle destabilization and aggregation, leading to better removal efficiencies of contaminants during sedimentation and filtration processes.

The pH of the water is crucial in coagulation because it affects the charge and solubility of the coagulants used, as well as the charge of the particles present in the water. Adjusting pH can enhance the coagulation process by ensuring that the coagulant is most effective in binding with the particles, resulting in better floc formation and ultimately more efficient removal of potential contaminants.

Other aspects such as detention time and flow rate, temperature and pressure, or chemical composition and sedimentation, while important in the overall water treatment process, do not specifically pertain to the enhanced coagulation process adjustments. These factors may influence other stages of treatment but are not the primary focus of enhancing coagulation effectiveness. Therefore, the focus on the adjustment of coagulation dosage and pH is key to achieving optimized treatment outcomes in enhanced coagulation.