欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用序批实验,测定不同配比熟污泥改性黄土中的有机质、碳酸盐、总磷、全Cu、pH和土壤电导率,探讨了不同配比熟污泥改性黄土对重金属Cu的吸附-解吸行为.结果表明在不同配比熟污泥改性黄土中,重金属Cu的吸持量随着平衡浓度的增加而增大;Freundlich型方程是描述供试土样等温吸附线的最佳模型;乙酸铵对Cu的释放量随吸持量的增大而增大;释放率随着熟污泥配比的增大而减小;土壤固定量随着熟污泥配比的增大而增大,固定能力的增强降低了重金属带来的环境风险.
英文摘要：
Laboratory batch experiments were conducted to detect organic, carbonate, totalphosphorus, total copper, pH, electrical conductivity and to study the sorption and desorption of Cu in different rates of loess im- proved by composted sludge. The results showed that the amounts of Cu adsorbed by different rates of compost- ed sludge increased with the equilibrium concentrations; Freundlich adsorption equation was the best in describ- ing the isothermal adsorption processes of Cu; the desorption of Cu by ammonium acetate increased with ab- sorption and the desorption rate of ammonium acetate decreased in different rates of loess. As the composted sludge concentration increased, the fixed copper on soil samples increased, and the improved fixation reduced environmental risks with heavy metals.
同期刊论文项目
同项目期刊论文
Effect of organic matter and calcium carbonate on behaviors of zinc adsorption-desorption on/from Ni
Interaction between Cd and Pb in the soil-plant system: a case study of an arid oasis soil-cole syst
Heavy metal accumulation by poplar in calcareous soil with various degrees of multi-metal contaminat
Effects of Ni stress on the uptake and translocation of Ni and other mineral nutrition elements in m
Bioaccumulation and translocation of cadmium in wheat (Triticum aestivum L.) and maize (Zea mays L.)
Effects on Ni and Cd speciation in sewage sludge during composting and co-composting with steel slag
PHYTOEXTRACTION POTENTIAL OF POPLAR (POPULUS ALBA L. VAR. PYRAMIDALIS BUNGE) FROM CALCAREOUS AGRICUL
Estimating realized and potential carbon storage benefits from reforestation and afforestation under
Physiological responses of Populus euphratica Oliv. to groundwater table variations in the lower rea
The canopy rainfall interception in actual and potential distribution of Qinghai spruce (Picea crass
Evaluation of water use of Caragana korshinskii and Hippophae rhamnoides in the Chinese Loess Platea
Restoration and conservation potential of destroyed Qinghai spruce (Picea crassifolia) forests in th
Characteristics of Caragana korshinskii and Hippophae rhamnoides stemflow and its significance in so
Soil CO2 efflux along an elevation gradient in Qinghai spruce forests in the upper reaches of the He
Soil water content and water balance simulation of Caragana korshinskii Kom. in the semiarid Chinese
SPECIES DISTRIBUTION MODELS TO ESTIMATE THE DEFORESTED AREA OF PICEA CRASSIFOLIA IN ARID REGION RECE
期刊信息
位置：