MOBILITY OF OIL AND OTHER SLUDGE CONSTITUENTS DURING OILY SLUDGE TREATMENT BY LANDFARMING

被引：9

作者：

ELBAGOURI, IH ^{[1
]}

ELNAWAWY, AS ^{[1
]}

ABDAL, M ^{[1
]}

ALDAHER, R ^{[1
]}

KHALAFAWI, MS ^{[1
]}

机构：

[1] KUWAIT INST SCI RES,POB 24885,SAFAT 13109,KUWAIT

来源：

RESOURCES CONSERVATION AND RECYCLING | 1994年 / 11卷 / 1-4期

关键词：

Heterogeneous sludge composition - Kuwait - Oily sludge treatment;

D O I：

10.1016/0921-3449(94)90081-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Five levels of oily sludge application were made to the surface layer of a desert sandy soil in Kuwait. The migration of the constituents of the sludge to subsurface soil layers was investigated at intervals over a period of 29 months. The data show very limited mobility to subsurface soil layer (40-70 cm depth) but not to 70-90 cm depth. The environmental impact of the added sludge is related to soil pH and to the Zn equivalent value of the sludge. Zn equivalent for the soil treated with oily sludge was 612 mg kg-1, which is much lower than permissible limits. This soil can accept more than 1000 t ha-1 from this type of sludge. However, due to the heterogeneous composition of sludge the Zn equivalent value should be calculated for each batch. Addition of oily sludge to the desert soil susceptible to wind erosion had a significant effect on minimizing soil loss under wind tunnel conditions. This effect is attributed to aggregation of the soil particles in the surface soil layers.

引用

页码：93 / 100

页数：8

共 8 条

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