Table 4 Summary of costs and flow rates for coagulation, co-precipitation and filtration technologies
Author | Intervention | Household or community | Flow L/hr | Capital cost as Aus$ | Operational cost as Aus$ |
|---|---|---|---|---|---|
BAMWSP (2001), Sutherland (2001), Sutherland (2002) | DPHE/Danida two bucket system | Household | 4.3 (max 43–52 L in 12 hrs) | Not reported | Not reported |
Hoque (2000) | Alum treatment of contaminated water | Unclear | Not reported | Not reported | Not reported |
BAMWSP (2001), Sutherland (2001), Sutherland (2002) | Stevens Institute technology | Unclear | 18 (max 211 L in 12 hrs) | Not reported | Not reported |
Meng (2001) | Household co-precipitation and filtration system | Household | 90 (reduced to 24 after 10 buckets) (1.5 L/min) | Not reported | 8/year/family |
Amiri (2010) | STAR | Unclear | 16 L – mixed and stand 10–15 min | Not reported | Not reported |
Amiri (2010) | CIWPL | Unclear | 20 L water – stirred for 2 mins and stand for 1 hour. | Not reported | Not reported |
Norton (2009) | Procter & Gamble flocculant-disinfectant powder | Household | 10 L/sachet. Stir 5 min and settle 5 min | Not reported | Not reported |
Cheng (2004) | Household arsenic removal system | Household | 30-120 (0.5-2.0 L/min) | Not reported | Not reported |
Ali (2001) | Ferric chloride coagulation | Household | 60-120 (1–2 L/min) | 80 | Chemicals −0.20 |
Hossain (2005) | Chlorinating agent (BP) + ferric alum | Community | 1000 | 1512 periodic chemical charges (assume 2002 – study 2001–2003) | Not reported |