We called the vacuum truck to come and load the digester with waste in the morning. We loaded it all the way full to the third sampling valve. We took a 200ml sample of the sludge from the bottom valve for it to be more representative. From there, we proceed to the farm for testing.
We spent quite a large amount of time in the lab trying to find the reagents as it was quite messy. We finally managed to sort out the mess and did the testing. It was our first time performing the experiment and these are our results
Sludge weight: 52.1432g
pH: 10.62
Volatile Acids: 19mg/L
Dissolved Oxygen: 2.58ppm
Chemical Oxygen Demand: 156mg/L
Nitrogen: 20mg/L
Phosphorous: 2.1mg/L
Potassium: (Have not completed, insufficient reagents. Reagents to be obtained second week of October)
Friday, September 25, 2009
Subscribe to:
Post Comments (Atom)
0 comments:
Post a Comment