Removal of Metals and Acidity from Acid Mine Drainage Using Liquid and Dried Digested Sewage Sludge and Cattle Slurry; [Verwendung von flüssigen und getrockneten Faul-/Klärschlamm und Rindergülle zur Verminderung der Acidität und des Metallgehalts in sauern Grubenabwasser (AMD)]

被引：0
作者：
Hughes T.A. [1 ]
Gray N.F. [1 ]
Sánchez Guillamón O. [1 ]
机构：
[1] Water Technology Research Group, School of Natural Sciences, Centre for the Environment, Trinity College
来源：
Mine Water and the Environment | 2013年 / 32卷 / 2期
关键词：
Adsorption; Neutralization; Organic wastes; Precipitation; Treatment;
D O I：
10.1007/s10230-013-0217-9
中图分类号：
学科分类号：
摘要：
The metal removal and neutralization capacities of digested sewage sludges from municipal wastewater treatment plants, cattle slurry (liquid manure), and Biofert granules (dried granular anaerobic sludge) were compared under batch conditions using synthetic AMD (pH 2.8) containing high concentrations of Al, Cu, Fe, Mn, Pb, and Zn (100, 15, 270, 15, 2, and 30 mg/L, respectively). The effects of contact time and solids concentration were examined. Metal removal was variable for all materials. Contact time had a significant effect, with total removal often increasing over the experimental time interval (i.e. 30 min to 24 h). Removal efficiency (%) was generally highest for Cu, Pb, and Al, while Mn and Zn were the least removed. Cattle slurry was the best material for metal removal, with the following maximum removals at a solids concentration of 12.9 g/L: Cu >98 %, Al >98 %, Fe >60 %, Mn >18 %, Pb >96 %, and Zn >60 %. Metal removal using digested sewage sludge reached 88 % for Al, 98 % for Cu, 94 % for Pb, and 30 % for Zn. Neutralization was complete within 30 min after AMD was mixed with digested sludges or cattle slurry, with the pH reaching a maximum of 5.5 with the slurry. In contrast, neutralization by the Biofert granules only reached equilibrium after 300 min, and pH remained <4.0 except at high solids concentrations. It appears that recycled waste-derived organic materials can neutralize AMD and remove dissolved metals by adsorption and precipitation, creating a more treatable waste stream or one that could be discharged directly to surface water. Potential methods of safe disposal of metal-enriched organic materials are discussed. © 2013 Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：108 / 120
页数：12
相关论文
共 67 条
[1]  
Acheampong M.A., Meulepas R.J.W., Lens P.N.L., Removal of heavy metals and cyanide from gold mine wastewater, J Chem Technol Biotechnol, 85, pp. 590-613, (2010)
[2]  
Alibhai K.R.K., Mehotra I., Forster C.F., Heavy metal binding to digested sludge, Water Res, 19, 12, pp. 1483-1488, (1985)
[3]  
Alvarez E.A., Mochon M.C., Sanchez J.C.J., Rodriguez M.T., Heavy metal extractable forms in sludge from wastewater treatment plants, Chemosphere, 47, pp. 765-775, (2002)
[4]  
Antoniadis V., Alloway B.J., The role of dissolved organic carbon in the mobility of Cd, Ni and Zn in sewage sludge-amended soils, Environ Pollut Ser A, 117, 3, pp. 515-521, (2002)
[5]  
Standard Methods for the Examination of Water and Wastewater, (2005)
[6]  
Artola A., Balaguer M.D., Rigola M., Heavy metal binding to anaerobic sludge, Water Res, 31, 5, pp. 997-1004, (1997)
[7]  
Artola A., Martin M., Balaguer M., Rigola M., Isotherm model analysis for the adsorption of Cd(II), Cu(II), Ni(II), and Zn(II) on anaerobically digested sludge, J Colloid Interface Sci, 232, pp. 64-70, (2000)
[8]  
Atkinson B.W., Bux F., Kasan H.C., Considerations for application of biosorption technology to remediate metal-contaminated industrial effluents, Water SA, 24, 2, pp. 129-136, (1998)
[9]  
Bamforth S.M., Manning D.A.C., Singleton I., Younger P.L., Johnson K.L., Manganese removal from mine waters-investigating the occurrence and importance of manganese carbonates, Appl Geochem, 21, pp. 1274-1287, (2006)
[10]  
Bhatnagar A., Sillanpaa M., Utilization of agro-industrial and municipal waste materials as potential adsorbents for water treatment-a review, Chem Eng J (Amsterdam, Neth), 157, pp. 277-296, (2010)
1234567