TABLE 2.
Samples and points of collection for each system
| Sample sources from indicated point of collection in waste treatment technologies
| |||||
|---|---|---|---|---|---|
| CWM | AUFBS | CWS | SSS | ATAnD | HRHB |
| Fecesa | Fecesa | Fecesa | Fecesa | Fecesa,c | Fecesa |
| House effluent | House effluent | House effluent | House effluent | House effluentc | Bedding |
| Lagoonb | Separated solids | Inner effluent | Homogenizer tank | Digester | Initial compost |
| Separated liquids | Outer effluent | Separated solids | Biofilter no. 1 | Final compostb | |
| Equalization tank | Solid for separation | Separated liquids | Storage pond | ||
| Biofilter effluent | Inner effluent | Pre-phosphorus removal (liquid) | Biofilter no. 2 | ||
| Biofilter backwash | Outer effluent | Post-phosphorus removal (liquid)b | Greenhouse samplesb | ||
| Lagoon 1 (liquids)b | Storage pondb | Bagged final product (solid)b | Tomato mediab | ||
| Lagoon 2 (biosolids)b | |||||
| Lagoon 3 (barn waste)b,d | |||||
a
Pretreatment samples.
b
Posttreatment samples.
c
Includes samples from four gestation houses and two farrowing houses.
d
Lagoon 3 is not connected to the treatment technology (bypass) and it receives manure from another five houses with 4,000 pigs (total).