Equation Chapter 1 Section 1 Techno-Economic Analysis for the Selection of Cost-Effective Treatment for Algae Removal in Drinking Water Treatment Plants

In this study, the responses of Dissolved Air Flotation (DAF), sedimentation, and sand filtration treatment processes on feed water with varied algal concentrations were investigated, based a technical–economic analysis using data collected from drinking plant (DWTP) in Guangxi, China. Cost-effective for sources algae proposed. The results showed that DAF was able to achieve almost 95% removal efficiency, while sedimentation only reach 90% under different Polyaluminum Chloride (PACl)/dry cell weight DWTP. When increase, switching reduces costs as is more efficient removal, which extends backwashing interval filtration. threshold sedimentation/DAF also depends quality requirement treated water. lower concentration water, earlier switch should be made DAF. For instance, when effluent thresholds are 1.2 mg·L−1, 0.8 or 0.4 adopted instead sedimentation—at 43.9 31.5 17.3 respectively, raw set baseline cost-effective strategy techno-economic model, can precisely control coagulation dosage backwash coupled algae-laden