Research Article
Construction and Evaluation of Rainwater Harvesting System for Domestic Use in a Remote and Rural Area of Khulna, Bangladesh
Table 2
Physicochemical characteristics of harvested rainwater.
| | Parameter (unit) | Used methods | Harvested rainwater | Bangladesh drinking water quality standards | WHO standards |
| | Chloride (mg/L) | Mohr’s | 6.50 | 150–600 | 200–300 | | Iron (mg/L) | Colorimetric | 0.11 | 0.30–1.00 | 0.3 | | Nitrate (mg/L) | Cd reduction | 0.40 | 50 | 50 | | pH | Membrane electrode | 6.72 | 6.5–8.5 | 6.8–7.3 | | Turbidity (NTU) | Spectrophotometric | <1.00 | 6.00 | 5.0 | | TDS (mg/L) | Conductivity | 12 | 500–1000 | 1000 | | Total hardness (mg/L) | EDTA | <10 | 500 | 40 | | Alkalinity (mg/L) | Mohr’s | 50 | 50 | 40 |
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