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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.
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Environmental Evidence

ISSN: 2047-2382