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Table 11 Summary of effectiveness evidence for coagulation, co-precipitation and filtration interventions

From: Are interventions to reduce the impact of arsenic contamination of groundwater on human health in developing countries effective? A systematic review

Intervention Study Effectiveness evidence
Alum iron coagulation Ali 2001   1
CIWPL Amiri 2010   2
STAR Amiri 2010   3
DPHE BAMWSP  
Sutherland 2001   
Sutherland 2002  
Stevens BAMWSP  
Cheng 2004  
Meng 2001  
Sutherland 2001  
Sutherland 2002 4
Alum treatment Hoque 2000   
BP & ferric alum Hossain 2005  
P&G powder Norton 2009  
  1. 1Data to inform national guidelines not available.
  2. 2Mean effluent arsenic concentrations for 6 out of 7 filters was < 0.05 mg/l.
  3. 3Mean effluent arsenic concentrations for 5 out of 7 filters was < 0.05 mg/l.
  4. 4For BAMWSP and Cheng good or poor effectiveness depending on location.