Environmental Engineering Reference
In-Depth Information
Table 7.12
Comparison of Experimental Design of the Pilot Studies
Pilot Studies
LTUs
Troughs
Variable
1
2
1
2
3
Initial PAH
concentration
(mg/kg)
13,000
13,000
10,500
7000
7000
Mixing/tilling
Phase 1: initial and day 71
Phase 2: none
Phase 1: every 2
weeks
Phase 2:
quarterly
Weekly
Weekly
Weekly
Soil moisture
Phase 1: 30-80% FMC
Phase 2: natural precipitation
Same as LTU 1
30-80% FMC
30-80% FMC
30-80% FMC
Nutrient
addition
Phase 1: liquid and solid
fertilizer 1× each
Phase 2: no addition
Same as LTU 1
No addition
Slow-release,
solid
nitrogen
Slow-release,
solid
nitrogen
Bulking agent
No
No
No
Yes
Yes
Bioaugmentation
No
No
No
No
Yes
Respiration
monitoring
Phase 1: yes
Phase 2: no
Same as LTU 1
Yes
Yes
Yes
