Results of third trial:-

Third Trial
DATE TIME HOUR DO(ppm) COD(ppm)
09/11/2017 4:30 PM 00 1.96 285.6
12/11/2017 10:00 AM After 55.30 2.69 581.4
13/11/2017 11:00 AM 80.30 0.39 255
14/11/2017 11:00 AM 104.30 2.78 326
15/11/2017 11:00 AM 128.30 1.60 20.8

Fourth trials is on aqua phonic water but precise data is not available.

Observations after fourth trial:-

Acrylic tube is cracked due to light.

So queries arises…

What should  be material used for photo bioreactor either glass or acrylic for better working of system?

What is photon efficiency?

For effective working of system is it better to make water flow through tube interrupted ?

So for interrupted water flow I used arduino program…

20171210_143810

Program is designed for 30 seconds of water flow after each 10 minutes….

Next trials are going on…..