排序方式: 共有2条查询结果,搜索用时 46 毫秒
1
1.
SAIDI Neyla KOUKI Soulwene M' HIRI Fadhel JEDIDI Naceur MAHROUK Meriam HASSEN Abdennaceur OUZARI Hadda 《环境科学学报(英文版)》2009,21(10):1452-1458
The aim of this study was to characterize the biological stability and maturity degree of compost during a controlled pile-composting trial of mixed vegetable residues (VR) collected from markets of Tunis City with residues of Posidonia oceanica (PoR), collected from Tunis beaches. The accumulation in beaches (as well as their removal) constitutes a serious environmental problem in all Mediterranean countries particularly in Tunisia. Aerobic-thermophilic composting is the most reasonable way to profit highly-valuable content of organic matter in these wastes for agricultural purposes. The physical, chemical, and biological parameters were monitored during composting over 150 d. The most appropriate parameters were selected to establish the maturity degree. The main result of this research was the deduction of the following maturity criterion: (a) C/N ratio < 15; (b) NH4+-N < 400 mg/kg; (c) CO2-C < 2000 mg CO2-C/kg; (d) dehydrogenase activity < 1 mg TPF/g dry matter; (e) germination index (GI) > 80%. These five parameters, considered jointly are indicative of a high maturity degree and thus of a high-quality organic amendment which employed in a rational way, may improve soil fertility and soil quality. The mature compost was relatively rich in N (13.0 g/kg), P (4.74 g/kg) and MgO (15.80 g/kg). Thus composting definitively constitutes the most optimal option to exploit these wastes. 相似文献
2.
SAIDI Neyl KOUKI Soulwene M’HIRI Fadhel JEDIDI Naceur MAHROUK Meriam HASSEN Abdennaceur OUZARI Hadda 《环境科学学报(英文版)》2009,21(10):1452-1458
The aim of this study was to characterize the biological stability and maturity degree of compost during a controlled pile-composting
trial of mixed vegetable residues (VR) collected from markets of Tunis City with residues of Posidonia oceanica (PoR), collected from
Tunis beaches. The accumulation in beaches (as well as their removal) constitutes a serious environmental problem in all Mediterranean
countries particularly in Tunisia. Aerobic-thermophilic composting is the most reasonable way to profit highly-valuable content of
organic matter in these wastes for agricultural purposes. The physical, chemical, and biological parameters were monitored during
composting over 150 d. The most appropriate parameters were selected to establish the maturity degree. The main result of this research
was the deduction of the following maturity criterion: (a) C/N ratio < 15; (b) NH4
+-N < 400 mg/kg; (c) CO2-C < 2000 mg CO2-C/kg;
(d) dehydrogenase activity < 1 mg TPF/g dry matter; (e) germination index (GI) > 80%. These five parameters, considered jointly are
indicative of a high maturity degree and thus of a high-quality organic amendment which employed in a rational way, may improve
soil fertility and soil quality. The mature compost was relatively rich in N (13.0 g/kg), P (4.74 g/kg) and MgO (15.80 g/kg). Thus
composting definitively constitutes the most optimal option to exploit these wastes. 相似文献
1