Cement Stabilization/Solidification of Heavy Metal-Contaminated Sediments Aided by Coal Fly Ash


  • Cheng Zhu, Xiaolei Jia Beijing Forestry University, Beijing 100083, China
  • Panyue Zhang Beijing Forestry University, Beijing 100083, China
  • Junpei Ye Beijing Forestry University, Beijing 100083, China
  • Hongjie Wang Beijing Forestry University, Beijing 100083, China




Stabilization/solidification, dredged sediments, coal fly ash, compressive strength, leaching test, curing condition.


 Discharge of various wastewater containing heavy metals from metallurgical, chemical engineering industries, etc. into water body results in the accumulation of heavy metals in sediments of rivers and lakes, and further severe sediment contamination. When the severely contaminated sediments are dredged, they must be handled before disposal. In this paper, the dredged sediments were stabilized/solidified with cement aided by coal fly ash. The compressive strength of stabilization/solidification specimens decreased with the increase of sediment/binder ratio. All specimens showed a satisfactory compressive strength except that the compressive strength of the specimen with the high sediment/binder ration of 3.33 was lower than 0.35 MPa, the requirement of US EPA. Coal fly ash effectively acted as the binder, but the excessive addition of coal fly ash resulted in the reduction of specimen compressive strength. The pH of TCLP leachates for the specimens, which met the requirement of the compressive strength, was distributed between 11.07 and 12.50, and the heavy metal concentration of the TCLP leachates was lower than 0.029 mg/L. A similar trend of acid neutralization capacity of the stabilization/solidification specimens was observed as that of the compressive strength. Curing in a hermetically sealed plastic bag at ambient temperature and a longer curing period improved the stabilization/solidification effect. Humidity and temperature played an important role during curing period. Under an aggressive condition with a fixed leachate pH of 4, the stabilization/solidification technology increased the heavy metals fixed to 88.47%, 93.30% and 87.71% for zinc, lead and cadmium, respectively, and the concentration of zinc, lead and cadmium in the leachates was lower than the limits of the identification standards for hazardous wastes-identification for extraction toxicity (GB 5085.3-2007). So cement stabilization/solidification aided by coal fly ash can be an alternative disposal technology for dredged sediments contaminated by heavy metals.

Author Biographies

Cheng Zhu, Xiaolei Jia, Beijing Forestry University, Beijing 100083, China

Beijing Key Lab for Source Control Technology of Water Pollution

Panyue Zhang, Beijing Forestry University, Beijing 100083, China

Beijing Key Lab for Source Control Technology of Water Pollution

Junpei Ye, Beijing Forestry University, Beijing 100083, China

Beijing Key Lab for Source Control Technology of Water Pollution

Hongjie Wang, Beijing Forestry University, Beijing 100083, China

Beijing Key Lab for Source Control Technology of Water Pollution


Isaure MP, Manceau A, Geoffroy N, Laboudigue A, Tamura N and Marcus MA. Zinc Mobility and Speciation in Soil Covered by Contaminated Dredged Sediment Using Micrometer-Scale and Bulk-Averaging X-Ray Fluorescence, Absorption and Diffraction Techniques. Geochi Cosmochi Acta 2005; 69(5): 1173-1198. https://doi.org/10.1016/j.gca.2004.08.024

Stephens S, Alloway BJ, Parker A, Carter J and Hodson M. Changes in the Leachability of Metals from Dredged Canal Sediment during Drying and Oxidation. Environ Pollut 2001; 114: 407-413. https://doi.org/10.1016/S0269-7491(00)00231-1

Liu C, Fan C, Shen Q, Shao S, Zhang L and Zhou Q. Effects of Riverine Suspended Particulate Matter on Post- Dredging Metal Re-Contamination across the Sediment- Water Interface. Chemosphere 2016; 144: 2329-2335. https://doi.org/10.1016/j.chemosphere.2015.11.010

Conner JR and Hoeffner SL. A Critical Review of Stabilization/Solidification Technology. Crit Rev Environ Sci Technol 1998; 28: 397-462. https://doi.org/10.1080/10643389891254250

Kogbara RB and Al-Tabbaa A. Mechanical and Leaching Behaviour of Slag-Cement and Lime-Activated Slag Stabilised/Solidified Contaminated Soil. Sci Total Environ 2011; 409(11): 2325-2335. https://doi.org/10.1016/j.scitotenv.2011.02.037

Parsa J, Munson-McGee SH and Steiner R. Stabilization/Solidification of Hazardous Waste Using Fly Ash. J Environ Eng 1996; 122: 935-940. https://doi.org/10.1061/(ASCE)0733- 9372(1996)122:10(935)

Boura P, Katsioti M, Tsakiridis P and Katsiri A. Stabilization/Solidification of Sewage Sludge. In: Proceeding of the IWA specialist conference, Biosolids 2003- Wastewater sludge as a resource. Trondheim Norway 2003; 465-472.

Khale D and Chaudhary R. Mechanism of Geopolymerization and Factors Influencing Its Development: a Review. J Mater Sci 2006; 42: 729-746. https://doi.org/10.1007/s10853-006-0401-4

Ahmari S and Zhang L. Production of Eco-Friendly Bricks from Copper Mine Tailings through Geopolymerization. Constr Build Mater 2012; 29(4): 323-331. https://doi.org/10.1016/j.conbuildmat.2011.10.048

Buchwald A and Schulz M. Alkali-Activated Binders by Use of Industrial Byproducts. Cement Concrete Res 2002; 35: 968-973. https://doi.org/10.1016/j.cemconres.2004.06.019

Palomo A, Alonso S and Fernandez-Jimenez A. Alkaline Activation of Fly Ashes: NMR Study of the Reaction Products. J Am Ceram Soc 2004; 87: 1141-1145. https://doi.org/10.1111/j.1551-2916.2004.01141.x

Poulesquen A, Frizon F and Lambertin D. Rheological Behavior of Alkali-Activated Metakaolin during Geopolymerization. Cement-Based Materials for Nuclear Waste Storage. Springer: New York 2013.

Hardijito D, Wallah SE, Sumajouw DMJ and Rangan BV. On the Development of Fly Ash-Based Geopolymer Concrete. ACI Mater J 2004; 101: 1-15.

Malviya R and Chaudhary R. Leaching Behavior and Immobilization of Heavy Metals in Solidified/Stabilized Products. J Hazard Mater 2006; B137: 207-217. https://doi.org/10.1016/j.jhazmat.2006.01.056

Neville AM. Properties of Concrete. Wiley 1996, New York.

U.S. Environmental Protection Agency. EPA Test Method 1311 - TCLP, Toxicity Characterization Leaching Procedure. Washington, DC 1992.

Isenberg J and Moore M. Stabilization and Solidification of Hazardous, Radioactive, and Mixed Wastes. American Society for Testing and Materials Philadelphia 1992; 361-377. https://doi.org/10.1520/STP19564S

Malviya R and Chaudhary R. Evaluation of Leaching Characteristics and Environmental Compatibility of Solidified/Stabilized Industrial Waste. J Mater Cycles Waste 2006; 8: 78-87. https://doi.org/10.1007/s10163-005-0139-0

Stulovic M, Ivsic-Bajceta D, Ristic M, Kamberovic Z, Korac M and Andic Z. Leaching Properties of Secondary Lead Slag Stabilized/Solidified with Cement and Selected Additives. Environ Prot Eng 2013; 39(3): 149-163.

Spence R. Designing of Cement-Based Formula for Solidification/Stabilization of Hazardous, Radioactive, and Mixed Wastes. Crit Rev Environ Sci Technol 2004; 34(4): 391-417. https://doi.org/10.1080/10643380490443281

Pereira CF, Rodríguez-Pi-ero M and Vale J. Solidification/Stabilization of Electric Arc Furnace Dust Using Coal Fly Ash: Analysis of the Stabilization Process. J Hazard Mater 2002; B82: 183-195.

Kidd S and Bowers JS. Treatment of mixed waste coolant. Lawrence Livermore National Laboratory 1995. San Josde CA. https://doi.org/10.2172/46594

Todorvic J, Ecke H and Lagerkvist A. Solidification with Water as a Treatment Method for Air Pollution Control Residue. Waste Manage 2003; 23: 621-629. https://doi.org/10.1016/S0956-053X(03)00106-5

Pereira CF, Galiano YL, Rodríguez-Pi-ero MA and Parapar JV. Long and Short-Term Performance of a Stabilized/Solidified Electric Arc Furnace Dust. J Hazard Mater 2007; 148: 701-707. https://doi.org/10.1016/j.jhazmat.2007.03.034

Fernándezolmo I, Lasa C and Lavín MA. Modeling of Amphoteric Heavy metals Solubility in Stabilized/Solidified Steel Foundry Dust. Environ Eng Sci 2009; 26(3): 251-262. https://doi.org/10.1089/ees.2007.0226

Albino1 V, Cioffi R, Santoro L and Valenti GL. Stabilization of Residue Containing Heavy Metals by Means of Materices Generating Calcium Trisulphoaluminate and Silicate Hydrates. Waste Manage Res 1996; 14: 29-41. https://doi.org/10.1177/0734242X9601400104

Lu L, Zhao P, Wang S and Chen Y. Effects of Calcium Carbide Residue and High-Silicon Limestone on Synthesis of Belite-Barium Calcium Sulphoaluminate Cement. J Inorg Organomet P 2011; 21(4): 900-905. https://doi.org/10.1007/s10904-011-9560-0

State Environmental Protection Agency. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. Identification Standards for Hazardous Wastes-Identification for Extraction Toxicity (GB 5085.3-2007). Chinese Environmental Science Press Beijing 2007.

Dermatas D, Menounou N and Meng XG. Mechanism of Lead Immobilization in Treated Soils. Land Contam Reclam 2006; 14: 43-56. https://doi.org/10.2462/09670513.702

Jirka A, Shannon M, Morris J and Parikh P. Factors Effecting EP Toxicity Metals Results, in: Proceedings of Third Annual Symposium Solid Waste Testing and Quality Assurance 1987; 115-47-5-52.




How to Cite

Cheng Zhu, Xiaolei Jia, Panyue Zhang, Junpei Ye, Hongjie Wang. Cement Stabilization/Solidification of Heavy Metal-Contaminated Sediments Aided by Coal Fly Ash. Glob. Environ. Eng. [Internet]. 2017Dec.31 [cited 2021Sep.16];4(1):46-54. Available from: https://www.avantipublishers.com/jms/index.php/tgevnie/article/view/937