Project 4. <Decontamination of polluted soils> Lecturer: Stoyan Gaydardzhiev University of Liege, Belgium Group members: J. Tun Tun, H. Kissiger Noudjom, L. Mbogne, L. Wiendieck, M. Hanöffner, B. Meyer, K. Günther, S. Held, F. Mucke, D. Menzel

Structure 1 Introduction 2 Project work 2.1 Task 2.2 Method 2.2.1 Biological treament (in situ) 2.2.2 Screening (on site) 2.2.3 Soil washing (ex situ) 2.3 Calculation 3 Summary 27 March 2017 12. IPW - FH Nordhausen

Introduction: Definition of remediation 27 March 2017 12. IPW - FH Nordhausen

Remediation strategies for polluted soil 27 March 2017 12. IPW - FH Nordhausen

The surface area: 10 ha = 100,000 m² Depht = 0.8 m Soil = 80,000 m³ Further data: The surface area: 10 ha = 100,000 m² Depht = 0.8 m Soil = 80,000 m³ Mass = 128,000 t 27 March 2017 12. IPW - FH Nordhausen

Project work - Task Given Facts: 56 % 32% 11% 1% Pb: 1240 Zn: 1200 Density = 1.6 g/ cm³ pH = 7.1 CEC = 23 mg/g Heavy Metals [μg/ g] Pb: 1240 Zn: 1200 Cd: 15 [ Sand ] [Silt] [Clay ] [Carbon ] 56 % 32% 11% 1% -Humidity: water content 1.5% mass of dry soil -Organics: (from fuel leackage) Vinylchloride – soluble (water) Naphtalene – in water and gas Phenol – in water and in solid 27 March 2017 12. IPW - FH Nordhausen

Method 27 March 2017 12. IPW - FH Nordhausen

Biological treatment 27 March 2017 12. IPW - FH Nordhausen

Soil washing (ex situ) 27 March 2017 12. IPW - FH Nordhausen

Moving drum screen - trommel 27 March 2017 12. IPW - FH Nordhausen

Centrifugal non-mechanical classifiers - Hydrocyclone 27 March 2017 12. IPW - FH Nordhausen

Calculation Approximate cost 200 € per m³ Cost for renting mashines Energy cost Biological treatment Excavation Soil washing Laboratory test Labour charge Approximate cost 200 € per m³ 27 March 2017 12. IPW - FH Nordhausen

Summary Economical Effective Simple 27 March 2017 12. IPW - FH Nordhausen