Heat treatment for wooden pallet allows industry to meet global standards

 

By Rose de la Cruz 

To prevent invasive insect pests and diseases from entering the country through global trade, the International Standard for Phytosanitary Measures (ISPM) No. 15 was enforced in 2002, mandating the makers of wooden packaging materials to sterilize their pallets and crates. Mode of sterilizing is either thru heat treatment or methyl bromide fumigation. 

A pallet is a flat transport structure used for shipping goods around the world. Here in the Philippines, the wooden pallet industry is able to comply with the ISPM regulation using DOST-FPRDI’s HT technology. 

Wency Carmelo, of the Forest Products Research Development Institute of the Department of Science and Technology said “compared to methyl bromide or MB, heat treatment which is being pushed locally, is a safer and cheaper way to fumigate wooden packaging materials.” 

“High MB levels are known to cause deaths and are very harmful to the ozone layer. HT, on the other hand, is non-toxic and about 50 percent cheaper than MB treatment. MB also makes wood pallets non-recyclable,” she explained.

 Made up of a furnace-type dryer with a computerized data logger, the HT ensures that the pallet blocks’ core reaches at least 560°C which is maintained for 30 minutes. At this setting, all insects and infectious organisms infesting the wood are killed, no matter what their life stage, she explained. 

Twelve pallet makers in the Southern Tagalog Region now use the technology and are providing HT services to other pallet producers and the many exporting companies based in the area. Among the successful adopters are Nippon Express and Adtek Philippines, Inc. 

Another is ACE + FA Enterprises in Cabuyao, Laguna which has been saved around P80,000 a month after it stopped renting the HT services of another firm and started using its own. It is now an accredited HT provider. 

Likewise, another pallet-maker also in Cabuyao, Laguna was able to save at least 100,00 board feet of lumber from sure decay, thanks to the HT facility.

In 2011, Suri Pallets, Inc. put up a lumber dryer designed by a private company. The machine, however, failed to work properly, leaving the firm unable to dry its huge stock of lumber. The management then asked DOST-FPRDI to help and in 2015, the the dryer was renovated using the design of its low-cost HT system. With the make over, Suri was finally able to dry all its lumber supply, and increased its output from 100 to 500 pallets per day.

 Carmelo concluded, “We are happy that DOST-FPRDI’s heat treatment technology is an export industry enabler and promotes for our pallet makers a safer and cheaper way to comply with global standards.” (with a report from Rizalina K. Araral, DOST-FPRDI)

 

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