THIRD GENERATION PSMELTING UNIT - DEVELOPED
PPCP continues its advocacy in recycling. In order to address the perceived concerns of some quarters regarding the alleged environmental effects of PS melting oven, PPCP in cooperation with the Department of Science and Technology - Material Science Division has developed a newly improved third Generation of melting oven for foam polystyrene.

After a thorough research finally, the PPCP - DOST has launched its newly improved PS melting unit. Enhancement of its features made it easier for the recycling of foam polystyrene. During the development, comprehensive assessment on its environmental impact was done which includes a careful examination on its smoke emission and odor reaction mechanism. With a satisfactory result gained from the gas emission test conducted together with the DOST - MSD - ITDI experts and the Ateneo National Chemistry Instrumentation Division, this third generation melting unit had passed the alleged non-environmental issues.

A CLOSER LOOK ON ITS IMPROVEMENTS
The earlier generations of PS melting oven are made up of steel vessel, metal lined, with cover, LPG fired – 50 kgs capacity with downspout for pouring molten products with hood and chimney for smoke.

Now, melting process has been made easier and simplified. An improved paddle for mixing the foam PS has been attached to the unit. Gas emission has been more manageable through the enhanced exhaust chimney, suction blower, a condenser for liquid gas collection, hooper, activated charcoal chamber, motorized plunger, vacuum pump for gas collection and melting chamber cover.These enhanced features of third generation PS melting oven produces a cleaner gas emission.

The improved unit is also composed of an improved temperature recorder from the previous contemporary temperature gauge of second generation melting unit which gives accuracy in the heating process and the over-all outcome of the end product. Improved spout is attached for better pouring and casting on pre-shaped metal moulds.

OLD PS MELTING OVEN

IMPROVED PS MELTING OVEN

MORE USEFUL PRODUCTS
Some useful products are table tops, cat walk, boards, bricks, synthetic timber plank and now even plastic planters are being discovered from the recycled foam PS.

GROWING PUBLIC INTEREST
With the continuous effort of the organization, PPCP believes that this technology will not only help regularize recycling industry but safeguard the environment while at the same time providing an option for diversion of solid wastes.

Demand from the LGU's and communities are relatively good. PPCP's main objective is to promote recycling using this technology with the benefit of generating income at the side. Trainings and actual demonstrations were conducted to municipalities of different regions and cities like in Cebu, Lapu-Lapu and Boracay. PPCP was even able to conduct such actual demonstrations in schools that embrace Solid Waste Management in their premises like the Environmental Science Institute of Miriam College.

More and more innovations for recycling will hopefully come out as PPCP continues in performing its mission on providing more campaigns and information on recycling to help and protect the environment.

Acknowledgement and Sources:
DOST – MSD – ITDI presentation on PS Melting oven
Engr. Manuel Navarro
Dr. Araceli Monsada
Mr. Nelson Develos
DOST – MSD - ITDI