2nd Anaerobic Sampling (Day 5) on 24th November 2010 (Wednesday)

 
As per usual, the thorough tests started at 3pm and ended at 11.30pm.

Before that, Farmart Bus Timings are as follows; good to keep note:

Bus Timings for weekdays:

Bus Timings for Weekends and public holidays:

This was how the waste in the Grey Digestor looked like on Day 5, the 1ml syringe can do wonders; we used it as a substitute for micro-pipettes:

The condition in the orange digestor (12 vol% cow dung):

The blue colour change upon addition of test reagents was attributed to the presence of phosphates; different colour intensity indicates varying phosphate concentration in the 2 samples.

             Left: Grey Digestor                                    Right: Orange Digestor 
 

It's getting really dark now... Look at the moon... It's 11.30 pm... Really Late...

The interior of the cab on the way home; exhausted and penniless with all these late night "cabbings" and "on-calls" from the secluded farm:

Conclusion:

Since this happens to be day 5 (or to say, we planned for it), we are able to calculate the BOD5 with the data we have on hand.

The team would be going down to SVF on friday to do another set of test for detailed data analysis. To effectively plot a graph for evaluating digestor performances, 5 data points are needed from the anaerobic stage.



Kian How, signing off on 25/11/10, 11.50 am.