With the closure of the open dumpsite in Barangay Candau-ay, all collected solid wastes and garbage in Dumaguete City will now be sorted in the Central Materials Recovery Facility and shall be converted into construction materials using the pyrolysis gasification process, which is expected to be operational in the 3rd quarter of this year.
This is an important step in line with the objective of Mayor Felipe Antonio Remollo to achieve the goal of a Zero Waste Dumaguete through the conversion of residual wastes into construction materials for public works coupled with the people’s cooperation in reducing consumption, practicing waste segregation and recycling.
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A modular equipment system, which processes solid wastes through gasification pyrolysis.
The equipment comes in various capacities depending on the volume of waste generated by the LGU.
AWS-EPCD is a Japanese technology manufactured in Indonesia, which uses the gasification pyrolysis system.
Gasification Pyrolysis System is a thermal process, which uses high temperatures to break down and disintegrate wastes.
This process doesn’t use direct burning and only uses less oxygen, which results to less harmful pollutants of down to 80 to 90% reduction of harmful gases or particulate matters such as carbon dioxide, sulfur oxides, nitrogen oxides, particulate matter, dioxin, and furan; and is complying based on the emission standard set by the DENR.
Excess heat of the cyclone will be used to food waste dryer. Dried food waste will be pulverized and used for fertilizer. For starter purposes only, the equipment utilizes diesel fuel for about an hour in order to initiate the ignition especially on waste with a very high moisture.
Once the desired temperature is attained, the thermal process is being maintained constant by a 1.5 horse power blower.
On a separate chamber, the wastes are first shredded and fed in a closed screw-type conveyor to prevent gas leakages and heat conservation. The feeding chamber has a capacity of 3-4 cubic meters per hour or approximately equivalent to 1.412 tons per hour of different kinds of solid wastes such as used sachets, plastic bags, styrofoams, food waste, agricultural waste, diapers, single use plastics and other solid waste, which have become residual wastes due to contamination.
In order to ensure that the emitted gases are not harmful, the AWS-EPCD is equipped with two types of air pollution control devices — a cyclone gas absorption chamber and a wet type scrubber — to ensure compliance to air emission standards set by the Republic Act 8749 or otherwise known as the Philippine Clean Air Act of 1999.
Waste water from the scrubber is being treated by a dryer, which evaporates the water and leaving dry sludge, which may be used as raw material for making hollow blocks or the likes.
Solid wastes fed in AWS-EPCD will be reduced to ashes as its end product, which is approximately 4% of its original volume. These ash residues can then be used as construction materials for footpaths or hollow blocks.
Shredder for plastic foam, shredder for biodegradable, glass pulverizer, food waste pulverizer, shredder for municipal waste, hollow block making machine, mortar mixer and rotary Composer.
Since the equipment is a modular type the AWS-EPCD equipment can be operational within 2 to 3 months upon awarding of contract. To ensure that AWS-EPCD is workable attached herewith is its supporting documents.
ETV- DOST —certifying that a technology is workable and does not pose harm to the environment.
DENR Permit to Operate —ensuring that the air emission standards of the prototype unit pass emission standards.
Should comply with Clean Air Act or CAA Test.
Should comply with dioxine and furan test.
ISO Certificate
International Quality Standards are in place for fabrication of AWS-EPCD
PhilGEPS Certificate: platinum membership
The company is an existing registered supplier of various equipment to other government agencies.