Water Pollution Control Engineering (Drainage, Water Treatment Experimental Demonstration Models) 1. Large-scale Water Treatment Plant Layout 3D Model 2. Urban Sewage Treatment Plant Overall Layout 3D Model 3. Complete Industrial Wastewater Treatment Equipment 4. Large Sewage Treatment Plant Simulation Equipment 5. Seawater Chemical Reverse Osmosis Water Treatment System Model 6. Horizontal Flow Sand Sedimentation Tank Model 7. Aeration Sand Sedimentation Tank Model 8. Horizontal Flow Sedimentation Tank with Chain-Driven Sludge Removal Mechanism 9. Horizontal Flow Sedimentation Tank without Sludge Removal Vehicle 10. Multi-Compartment Horizontal Flow Sedimentation Tank 11. Vertical Flow Sedimentation Tank Model 12. Peripheral-Driven Radial Flow Sedimentation Tank 13. Central-Driven Radial Flow Sedimentation Tank 14. Centripetal Radial Flow Sedimentation Tank 15. Radial Flow Sedimentation Tank with Multi-Compartment Sludge Discharge 16. Slanted Plate Sedimentation Tank 17. Slanted Tube Sedimentation Tank 18. Slanted Plate and Slanted Tube Sedimentation Tank Model 19. Acid Wastewater Neutralization Column *20. Sedimentation Experiment *21. Sludge Settling (4 Sets of Experiments) 22. Mechanical Stirring Reactor (Horizontal Shaft Type) 23. Mechanical Stirring Reactor (Vertical Shaft Type) 24. Horizontal Flow Grease Separator 25. CPI Corrugated Slanted Plate Grease Separator 26. Horizontal Flow Air Floating Tank Model 27. Vertical Flow Air Floating Tank Model 28. Chain-Type Mechanical Screen Cleaning Model 29. Injector Structural Model 30. Hydrosphere Structural Model 31. Circular Accelerated Aeration Tank Model 32. Siphon Rectangular Biological Filter Tank 33. Tower Biological Filter Tank 34. Biological Filter Tank Model 35. Biological Turnover Disc Model 36. Central Air Distribution Contact Oxidation Tank 37. Biological Contact Oxidation Tank 38. Three-Groove Oxidation Tank 39. Ordinary Neutralization Filter Tank 40. Upflow Expansion Neutralization Filter Tank 41. Roller-Type Neutralization Filter Tank 42. Plate and Frame Reverse Osmosis Membrane Element 43. Tubular Reverse Osmosis Membrane Element 44. Hollow Fiber Reverse Osmosis Membrane Element 45. Mechanical Ventilation Counter-Current Tower Model *46. Clarification Tank Experiment *47. Mechanical Accelerated Clarification Tank 48. Hydraulic Recirculation Clarification Tank 49. Baffle Reactor Model 50. Pulsed Clarification Tank 51. Ordinary Quick Sand Filter 52. Paddle Blade Mechanical Mixing Tank 53. Siphon Filter 54. Moving Hood Filter Model 55. Pressure Filter 56. Gravity Non-Valve Filter Tank