The document describes the design of a water purifier called Atlantis. It has several sections including pebbles/gravel, coarse sand, fine sand, a ceramic layer, charcoal, and cloth. Water passes through these layers which help remove impurities like algae, physical particles of various sizes, smells, and chemicals. The purified water exits with a total dissolved solids (TDS) level of 300 compared to the incoming water's 3000 TDS level. Maintenance is required every 6 months by two people and involves replacing or cleaning the various filter layers.

1. Atlantis
A Water Purifier Design

2. Evaporator Section
Pebbles/Gravel
Coarse Sand
Fine Sand
Ceramic layer
Charcoal
Cloth
Purified Water
Water
Storage
Tank
3000 TDS
300 TDS

3. Evaporator Section:
Design will be prototyped in Sketch-Up.
Then these sections could be manufactured individually at cheap cost.
Cloth Section:
We will be using simple cotton cloth. (Non-dyed white)

4. Material Required Specification
1
Pebbles/Gravels Section:
(8-16 mm)
This layer is able to capture the bio-
impurities like algae from the water.
3
Fine Sand Section:
(125-250 um)
This layer purifies the water from the
physical impurities of smaller sizes.
5
Charcoal Layer:
This layer is inculcated to remove the
smell form the water along with some
chemical impurities.
2
Coarse Sand Section:
(1-2 mm)
This layer helps to eliminate physical
impurities of a particular size range.
4
Ceramic Layer:
This layer is manufactured by baking ceramic
clay with rice husk inside the dough.
Therefore, after heating, pores will be formed
in the layer. This pore helps to eliminate
impurities from the water

5. Maintenance Work
1) The purifier will be requiring maintenance scheduling in period of 6
months.
2) Manpower required for setup & maintenance is limited to two only.

6. Portable green toilet
An eco friendly waste disposal
system

7. Basic idea
• Portable and easy to install.
• Best solution to waste management.
• No water needed.
• No smell.
• It can produce bio gas in 15 days

8. Structural Design

10. Maintenance Work
1) Only replacement of waste paper bag from bottom container of toilet once in week.
2) Adding new bio-degradable paper bag along with synthetic powder
3) Need one man to fold/unfold structure in 30 mins.