Plastic Disposal Technology

The technologies used for plastic waste disposal include:

1. Plastic Granules manufacturing and remoulding: This method of recycling involves processing of a waste/scrap into a new plastic product or form. Multi-layered and mixed plastic waste cannot be recycled using this process. Only segregated plastic waste with plastic purity of more than 95% can be recycled using this process.

2. Pyrolysis & Hydrolysis: This is a chemical method of recycling plastic waste. Tertiary recycling involves the production of basic chemicals and fuels from plastics waste using pyrolysis of hydrolysis as a process. this method of recycling it suitable for all types of plastic waste including the multilayer plastic waste for which first two methods of recycling are not suitable. 80% of plastic waste generated these days cannot be recycled using primary or secondary method of recycling. Hence, tertiary method of recycling is the only sustainable method for disposal of this 80% of plastic waste. This method of recycling allows us to recover the energy from plastic waste without burning the plastic waste.

3. Burning/Incineration: Also burning and incineration of plastic is banned in most of the developed & developing nations including India. This method retrieves the energy content of waste/scrap plastics by burning/incineration. The problem with this process is generation of very high levels of pollution including emission of harmful chemicals like dioxane and furans.

Detailed flow chart of apc’s plastic disposal technologies:

(1) Polymer waste is stored in raw material storage facility. This raw material is then conveyed to (2) airlock feeding system which feeds the raw material into the (3) Pyrolysis reactor in absence of oxygen. Pyrolysis reactor convert polymer waste into pyrolysis oil vapor, hydrocarbon gas and carbon black powder. (4) Carbon black powder is cooled and packed into 1000 kilogram bags for sale. (5) Mixture of pyrolysis oil vapour and hydrocarbon gas exits pyrolysis reactor and is subjected to (6) fractional condensation so as to get separate fractions of (7) hydrocarbon gas (10) pyrolysis wax and ‘pyrolysis oil+Moisture’. Hydrocarbon gas is subjected to (8) high temperature combustion and the energy produced is supplied to pyrolysis reactor. Post high temperature combustion, the exhaust gases are subjected to ‘waste heat recovery and scrubbing to control emission and cleaned flue gases are passed to (9) exhaust pipe. (10) Pyrolysis wax is either subjected to (8) high temperature combustion or is refined into (11) base oil for grease manufacturing. (11) base oil is then converted into (12) lubricating grease and oils. Mixture of ‘pyrolysis oil+Moisture’ is passed through (13) oil water separator to separate (14) the Pyrolysis oil from (21) Oily Wastewater. (21) Oily Wastewater is passed through (22) Water-oil separator to separate (24) oily sludge which goes back to pyrolysis reactor as raw material and waste water for incineration. (14) Pyrolysis oil can be sold as it is in the market as a liquid fuel to be used in industrial burners. Otherwise (14) Pyrolysis oil is either burned in slow speed engines to produce (15) electricity or is (16) refined into petroleum products like (17) Naphtha, (18) Petrol, (19) Diesel & (20) Kerosene.

Agile Process LLP is your partner for sustainable plastic waste management wordlwide. Would you like us to support you with your plastic disposal projects? We are looking forward to your enquiry.