Define i) Nuisance plastics ii) Primary Recycling iii) Secondary Recycling
[3 marks]Discuss about the concept of 4R’s in Recycling of Plastics
[4 marks]With a neat diagram explain the flow of plastic products and plastic waste.
[7 marks]State the identification codes of the following i) PET ii)PVC iii)LDPE
[3 marks]Explain the float sink separation technique to separate mixtures of mixed plastic waste.
[4 marks]List the methods of separation of paper/plastic mixture and explain the wet separation process to separate paper/plastic mixture.
[7 marks]Explain different size reduction methods for converting municipal solid refuse into smaller pieces.
[7 marks]Define Pyrolysis. List the advantages of Pyrolysis process.
[3 marks]Explain the construction and working of Reverzer equipment for mechanical reworking of plastics
[4 marks]List and explain the problems associated with incineration of pure Plastics Waste.
[7 marks]List and explain the sources of plastic waste
[3 marks]Describe the technical approaches to secondary recycling.
[4 marks]Discuss about Granulating difficult materials and explain any one Cryogenic Grinding technique for recycling them.
[7 marks]List the technical problems encountered in primary recycling.
[3 marks]Discuss about Granulators used in Primary Recycling of plastic waste.
[4 marks]Explain the Co injection molding technique for secondary recycling of plastics
[7 marks]Explain the Recycling of PP/HDPE woven sacks to pellets.
[3 marks]Describe the environmental implications of Recycling and Polymer Degradation
[4 marks]List the problems encountered in Pyrolysis of plastic waste. With a neat sketch, explain the Union Carbide apparatus for the continuous pyrolysis of plastics1
[7 marks]Describe the recycling of HDPE containers with a neat flow diagram
[3 marks]Discuss Landfill? List techniques of Landfilling and explain Sanitary Landfill.
[4 marks]Define Incineration. With a neat sketch explain the parts of a typical incinerator
[7 marks]Discuss about the Klobbe machine for secondary recycling of plastics.
[3 marks]Discuss about different techniques for PET Recycling
[4 marks]Describe the separation method to separate plastics from plastic-coated fabric.
[7 marks]