Thailand is responding to the growing demand for electricity with a network of small Waste-to-Energy (W2E) plants. Agon Pacific’s TANA 440DT mobile waste shredder produces fuel for one of these W2E plants from factory-rejected car tires that are unfit for road use.
TANA 440DT mobile shredder
Growing population creating demand for waste incineration
In its Waste-to-Energy service model, Agon Pacific uses a TANA 440DT to produce tyre shred that is suitable for incineration on behalf of the customer. “Much of Thailand’s electricity is based on gas imported from Myanmar, but Myanmar increasingly needs the gas itself. We want to create solutions for the Waste-to-Energy business, for which there is a clear need both in Thailand and elsewhere in Southeast Asia.”
As the population continues to grow in Thailand and also elsewhere in Southeast Asia, more electricity needs to be produced and also in a more environmentally friendly way. For this reason, Thailand is investing heavily in Waste-to-Energy production. The country’s vision is a decentralised electricity generation system, with the construction of about a hundred small waste-fired power plants in 76 provinces throughout Thailand. “Because power plants in a decentralised system are in the order of 8 to 10 mW, there is no need to renew the existing grid infrastructure. This means there is a huge demand for the processing of combustible materials.”
Mobility enhances productivity
From the outset, it was clear that the equipment needed to shred tires had to be durable and energy efficient. "In addition to capacity, it was vital to us that a single piece of equipment would be able to produce several different sizes of shred and run on fuel that is widely available everywhere.”
The mobile shredder covers longer distances on the back of a truck, but on the worksite it can travel short distances on its own. Agon Pacific operates the shredder at a terminal in Prachinbur, located approximately halfway between the tyre plant and the Green Power Energy power plant. “In operating, the biggest advantage of the mobile shredder is the flexibility it offers. We are able to move the machine on site according to the shredding need, so feeding from the piles of tyres is easy. At the end of the day, we can drive it into the shelter for the night.”
A mobile shredder is equally valuable in any location
Mobile shredders are also more cost effective than fixed shredding lines. They reduce the cost to the service provider, thereby reducing prices of the shredded material to a level that customers are willing to try. If the cooperation discontinues, the shredder can simply be moved elsewhere, Ijäs says. “Fixed shredding lines are tied to one place, whereas a mobile shredder is equally valuable in any location.”
Agon Pacific’s mobile shredder handles approximately 10 000 t/a of tyres a year for Green Power Energy. In addition to serving its anchor customer Green Power Energy, the mobility of the shredder has enabled Agon Pacific to expand its Waste-to-Energy business. When the shredder is not needed in Prachinbur, Agon Pacific has transported it to work 300 km away at another customer’s RDF waste incinerator. “The shredder is easy to move overnight to a new location. It has proven to be extremely effective at the RDF plant, as the small size of the shredded material it produced has helped increase the plant’s output by up to 20 %,” Ijäs says.
At the same time, part of the rapidly growing Waste-to-Energy business in Thailand involves opening and replacing old landfills with modern waste treatment centres. Old waste is dug up and cleaned from the soil. Agon Pacific’s services have indeed expanded to landfills, where the plastic cleaned with a mobile shredder is shredded into suitably sized pieces for power plants. As with decommissioned tyres and RDF, this is also in line with Thailand’s energy strategy.