Environmental Engineering Reference
In-Depth Information
FIGURE 13.10 Photograph of the site operation for Case Study #3.
Dry
Liquid
1 Gallon
Representative
Sample
Intake
Pump
Lagoon
Reaction
Zone
Discharge
Pump
Disposal Area
FIGURE 13.11 Schematic drawing of the treatment units used in Case Study #3.
13.4.3.4
Operations
The waste immediately after treatment was still quite fluid and required retention
in an impoundment until it solidified. Normally, excavating a temporary impound-
ment, using the excavated soil as additional berm material, does this. Because only
limited space was available, and groundwater conditions precluded digging a deep
pit for curing, the job was done in stages, starting at ground level, pouring out the
treated but still liquid waste, allowing it to solidify, and using the solid produced to
create berms for impoundment for the next stage. In this manner, a final 35-foot-
high “hill” was created (Figure 13.10). The ammonia evolved during the processing
Search WWH ::




Custom Search