We met Dr Mukta who will be our supervisor and adviser for this project, especially for the filtration system.
We managed to eliminate any leakages with sealing tape.
We managed to reduce the power requirement of the pump to 12V and around 5A by elevating the dirty water tank by using a stool from the MnT lab and also ensuring that there are no kinks and bends along the blue input pipe to the RO membrane. We also used a smaller makeshift dirty water tank.
We also tested the filtration system with red food colouring (insert specific food colouring)
Managed to recycle rejected water back to the dirty water tank.
– Here’s the video of us showing that the filtration system works (the file size is too big so prob need to embed youtube)
Food colouring as a visual indicator for successful removal of organic dissolved impurities in water by the RO membrane. Dirty water dyed pink by food colouring. Rejected water remained pink while filtered water is colourless.
TO DO:
maybe find out how to reduce power consumption further? but this seems unlikely
to create a way to organise all the parts of the filtration system neatly and compactly while minimising the power requirement
to consider TDS (total dissolved solids) sensor to verify quality of water after filtration (to compare with before)
= Also need to think about the actual receptacles and their dimensions required for the dirty water tank and the clean water tank.
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