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Created: 2026/01/08 09:55
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## Title: Low-Cost Household-scale Greywater Treatment Solutions Applicable to Dhaka City Region

- Research questions
- Literature review
- Methodology
- Expected contributions
- Timeline
- Budgeting
- References (APA)

### Problem statement

- Scope of study: local residents, farmer, autoshop, nursery, policy maker
- How much known: effect on soil, plants, concrete strength, medium of filtrations (sand filtration, gravity fed filtration)
- What is not defined: Practical household scale applications and guide
- New insights: Safety guidelines, optimized design, low cost best approach
- Why worth: budgeting, water scarcity, protecting environment

#### How much known:

- Grey water makes up about 50-80% of household discharge
- Crop quality remains consistent under controlled environment
- Plants like tomato, green beans had no significant changes
- Concrete showed none to slight reduction of strength when cured with filtered grey water
- Gravity fed filtration is simple solution

#### Gap

- No safety guidelines mentioned/defined for household scale application
- Optimized standard local design for Dhaka city
- Firefighting usability

#### Why worth

- High water demand lower groundwater level of Dhaka city rapidly
- Large scale reuse can potentially reduce water demand up to 50-80 percent
- Could reduce fertilizer needs