How to treat Wastewater in PET Recycling Industry?
The world is producing and using more than trillion pounds of plastic materials. There has been a twenty-fold increase in the global production of plastic materials, and production is expected to double in the coming couple of decades. The worldwide production of plastic materials reached 360 million tons in 2018, more than 50% of which was produced in Asia. Plastic recycling ensures that this huge amount of plastic does not go to waste. Instead the material can be recycled to produce other products.
What is plastic recycling?
Plastic recycling is the method of gathering waste plastic and reconverting them into reusable plastic products. Some of the most common plastic types that are recyclable are: PET, PVC, Low Density Poly Ethylene and High Density Poly Ethylene. PET being used most widely.
Steps involved in the recycling process:
Step 1: Collection of Plastic Waste
Step 2: Sorting of Plastics into categories
Step 3: Washing to remove impurities
Step 4: Shredding and Resizing
Step 5: Identification and Separation of Plastics
Step 6: Compounding
What is PET?
Most widely used plastics today is Polyethylene terephthalate (PET). PET is clear, tough, and shatterproof. It provides a barrier to oxygen, water, and carbon dioxide and its ability to contain carbon dioxide (carbonation) makes it ideal for use in carbonated soft drink bottles.
What is PET used for?
Just have a look around, you will spot a PET bottle containing mineral water or soft drink. PET is used to make bottles for water, juice, sports drinks, beer, mouthwash, and has wide applicability in packaging, pharmaceutical and medicalmarketplace. PET is a preferred packaging material because it is strong yet lightweight, non-reactive, cost-effective, and shatterproof. PET's safety for food, beverage, personal care, applications is recognized by health authorities around the world.
How much PET is produced?
With such a wide usage whooping 900 kilo tonnes of PET was used in India annually. There has been a twenty-fold increase in the global production of plastic materials, and this is expected to double in the coming couple of decades.
Can PET bottles and containers be recycled?
PET is highly sustainable and most recycled plastic. Out of the 900 kilo tonnes of PET made in India annually, 65% is recycled at registered facilities, 15% in the unorganized sector and 10% is reused at homes and the rest ends up at landfills.
How much wastewater is generated in recycling?
PET recycling is a fast growing sector with significant amount of wastewater generated. The plastic recycling process generates approximately 200 m3/d of wastewater, which undergoes primary and secondary treatments in a dedicated treatment plant, using the activated sludge process. The wastewater needs to be treated up to a suitable standard incurring minimal operational costs and adopting suitable technologies.
The recycling sector is oriented towards the recovery of material deriving from crushing processes and soil washing. The material has to be washed to remove the polluting part which decontaminates it. Washing is essential to remove impurities which otherwise may damage the new product. Moreover, the contaminants contained in plastic products may cause damage to the parts of treatment plant.
How can Netsol water help?
Netsol offers a variety of solutions for treating PET recycling wastewater and elimination of the contaminants and the sludge separately.
PET recycling wastewater treatment solutions offered by Netsol are modular and compact and at the same time environmental friendly. These treatment plants can be relocated in future and generally comprises of latest process technologies.
Netsol water is one of the India's major water and wastewater management company, specialized in the design, manufacture, and delivery of custom-made treatment systems, industrial machinery, and luxury amenities for the water industry. We provide customized services addressing customer needs promptly and effectively using industry-certified standards. Netsol manufactures top-of-the-line WWTPs effective in removing wastewater generated from PET recycling by capturing them.