Co-remediation of cadmium-polluted soil using stainless steel slag and ammonium humate

• Published in: Environmental science and pollution research international Vol. 19; no. 7; pp. 2842 - 2848
• Main Authors: Zhuo, Lin, Li, Hua, Cheng, Fangqin, Shi, Yonglin, Zhang, Qiuhua, Shi, Weiyu
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.08.2011; Springer Nature B.V
• Subjects: Adsorption; Ammonium; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Bioremediation; Cadmium; Cadmium - chemistry; Cation exchange; Cation exchanging; Chemical properties; Conservation of Natural Resources - methods; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental Restoration and Remediation - methods; Fertilizers; Heavy metals; Hydrogen-Ion Concentration; Industrial Waste; Ion Exchange; Iron and steel making; Organic matter; Organic soils; Pain; Performance evaluation; Poisoning; Pollution abatement; Quaternary Ammonium Compounds - chemistry; Remediation; Research Article; Slag; Slags; Soil (material); Soil - chemistry; Soil aggregates; Soil contaminants; Soil contamination; Soil organic matter; Soil pH; Soil Pollutants - chemistry; Soil pollution; Soil properties; Soil remediation; Stainless Steel; Stainless steels; Studies; Toxicity; Variance analysis; Waste Water Technology; Water Management; Water Pollution Control; China; Stainless steel slag; Ammonium humate; Cadmium (Cd); Polluted soil; Remediation
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-012-0790-7

Introduction and methods This study investigated the remediation of cadmium-polluted soil using a combination of stainless steel slag and ammonium humate. These remedial agents were added to an artificially polluted garden soil to inhabit cadmium toxicity in soil by changing the physical and chemical properties of soil in a pot experiment. Results and conclusions The results showed that the co-application of ammonium humate and stainless steel slag significantly decreased the total and available soil cadmium concentrations, with maximum decreases of 16.30% and 58.04%, respectively. The co-application of an adequate dose of these remedial agents can significantly increase soil pH. The soil organic matter and cation exchange capacity, as well as the amount of soil aggregates, were also significantly increased by the addition ammonium humate, but not stainless steel slag.