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Integrated Waste Management Volume I Part 7

Tham khảo tài liệu 'integrated waste management volume i part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | New Municipal Solid Waste Processing Technology Reduces Volume and Provides Beneficial Reuse Applications for Soil Improvement and Dust Control 201 mg CO2-C kg-1 soil 1 d-1 Dove Field Soil 17.9 Mg ha-1 35.8 Mg ha-1 71.6 Mg ha-1 143 Mg ha-1 Day Fluff MWC Fluff MWC Fluff MWC Fluff MWC 30 24.74 3.50 34.02 4.20 56.12 6.65 80.85 9.81 60 9.94 0.53 17.76 1.93 24.74 1.93 35.10 2.98 90 5.98 1.58 9.64 2.10 13.97 2.45 17.63 4.90 Borrow Pit Soil 17.9 g ha-1 35.8 Mg ha-1 71.6 Mg ha-1 143 Mg ha-1 Day Fluff MWC Fluff MWC Fluff MWC Fluff MWC 30 8.72 2.80 21.54 2.80 36.30 4.90 76.08 7.71 60 4.22 1.05 6.61 2.10 13.57 0.18 26.39 2.63 90 0.11 0.00 3.07 0.00 4.65 2.28 16.85 3.68 Fluff Un-composted municipal waste MWC Municipal waste compost Table 4. Comparison of carbon evolution rates between soils additives rates and incubation duration. Total inorganic N and NOs levels were considerably higher in the compost treatments than in the Fluff treatments indicating that decomposition of the Fluff resulted in significant N immobilization Table 6 . No changes in inorganic N concentration were observed in the Borrow Pit Fluff treatments through 90 d but the Dove Field Fluff treatments did increase slightly over time with an inverse relationship between rate and inorganic N concentration after 90 d of incubation. Ammonia levels did not differ at the same magnitude. Ammonia concentrations in the compost treatments remained very low and relatively constant across rates and soils but decreased slightly over time. Ammonia concentrations in the Dove Field C mineralized of additive TOC 17.9 g ha-1 Dove Field 143 Mg ha-1 35.8 Mg ha-1 71.6 Mg ha-1 Day Fluff MWC Fluff MWC Fluff MWC Fluff MWC 30 15.45 1.06 11.68 1.14 9.58 1.49 7.43 1.41 60 26.71 1.71 19.27 2.55 15.06 2.19 11.31 2.00 90 25.85 3.30 19.86 3.06 17.83 2.65 12.36 2.64 17.9 Mg ha-1 Borrow Pit 35.8 Mg ha-1 71.6 Mg ha-1 143 Mg ha-1 Day Fluff MWC Fluff MWC Fluff MWC Fluff MWC 30 4.78 0.94 6.46 0.54 6.02 1.13 6.47 1.04 60 9.70 2.18 10.32 2.07 9.22