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Created: 2026/02/23 12:14
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## 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