Test Data and Links
     

 

Results

Four days after the composting process started, the contents of the digestor was removed and screened to remove some of the remaining large wood chips. Darkened remnants of pig and chicken bones were found along with trace amounts of pig tissue. The moisture level of the screened compost was 51%. The only odor to the compost was of ammonia. We piled the screened compost against a block wall in a 3 feet high pile. The temperature in the pile on Wednesday at 9:30 AM was 60 degrees Fahrenheit.

Several bags of finished compost left on Tuesday, February 9th as samples. Other samples were taken March 2nd and 23rd. The samples were sent to AgriEnergy Resources, Princeton, IL for a compost Analysis Report. The results are listed below.

 

Nitrogen Tests (PPM)
Days After Removal
Ammonia NH(3)
Nitrites
NO(2)
Nitrates
NO(3)
1
1325
0
30
21
1250
2
53
42
1340
0
56
Desired Levels
<50
0
<800

 
Sodium and Sulfur Tests
Days After Removal
Sodium (PPM)
Sulfate S (PPM)
Sulfides
H(2)S level
1
60
52
0
21
150
185
0
42
230
35
0
Desired Levels
90-200
30-90
0

 
Water Soluble Tests
Days After Removal
pH
Conductivity
(Ergs)
Redox Potential
1
8.4
1150
21.9
21
7.7
3800
21.5
42
7.3
3650
22.2
Desired Levels
7.0-8.1
<3000
26.5-29

 
Total Nutrient Analysis
(% Dry Basis)
Days After Removal
%N
%P
%K
%Ca
%Mg
1
1.8
0.2
0.7
2.0
0.4
21
2.6
-
-
-
-
42
3.2
3.0
0.9
5.5
0.5
Desired Levels
0.6-1.2
Varies according to sample base composition

 

Assorted Tests
Days After Removal
Aerobic Plate Count (mil/gm)
Seed Germ Test (%)
1
-
-
21
5
0
42
-
10
Desired Levels
>1.0
>70

Moisture and C/N Ratio Tests
Days After Removal
Moisture (%)
Carbon to Nitrogen (C:N) Ratio
1
73.8
47.8
21
59.5
29.4
42
55.7
28.1
Desired Levels
<50
20-25

Bacteria Tests

Days After Removal
Coliforms per gram
E. Coli per gram
Salmonella per gram
1
0
0
0
21
-
-
-
42
-
-
-
Desired Levels
0
0
0
  Moisture and Carbon are determined by LOI methods.
Nitrate, Nitrite, Ammonia are determined by KCI extract.
Total N, P, K, Ca, MG are determined following a Kjeldahl digestion of the sample.
   
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