ewce09.azraftaohid.me/L3T2/GERM 352/20260223/Methodology.md

Created: 2026/02/23 12:14

Title: Low-Cost Household-scale Greywater Treatment Solutions Applicable to Dhaka Region

1. Materials
   1. Wastewater: from Dhaka residential homes, kitchen
   2. Filter media: sand, silt, clay, gravel
   3. Components: pipes, valves, filter tank, collection tank,
   4. Survey: paper
2. Data Collection:
   1. Existing standards
   2. Map coverage centralized water treatment plants, historical ground water depletion charts
   3. Treated water:
      1. TSS, TDS
      2. pH
      3. Nitrogen
      4. Phosphorous
      5. Potassium
      6. BOD
      7. Fecal coliform
   4. Flow rate
3. Data analysis:
   1. Selection of applicable area
   2. Treatment efficiency
   3. Water retention time, clogging rate
   4. Treated water vs standard comparison
   5. Economic - installation and maintenance