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Evaluation of Plastic Waste Management in Thailand Using Material ...

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C.2 Case study from oil recovery plant<br />

1. General Information<br />

Name: Master project <strong>of</strong> plastic to oil<br />

Address: Soi. Hua-H<strong>in</strong> 112, Phetkasem Road, Prachuab Khiri Khan, <strong>Thailand</strong><br />

Area: 1,600 sq. meters<br />

Period: 2008-2012 (5 years)<br />

Employees: 12 persons/ pyrolysis plant and 10 persons/sort<strong>in</strong>g unit<br />

Description: This project was run by the cooperation between Hua-H<strong>in</strong> municipality,<br />

Department <strong>of</strong> energy, S<strong>in</strong>gle Po<strong>in</strong>t Energy Environment Ltd., Co. (SPEE), and Bangchak<br />

Petroleum Plc. This project consists <strong>of</strong> two parts such as a sort<strong>in</strong>g unit (operated by<br />

municipality) and pyrolysis plant (operated by SPEE). <strong>Plastic</strong> waste <strong>in</strong> covered landfill is<br />

dug and fed <strong>in</strong>to pyrolysis reactor <strong>in</strong> order to produce crude oil which can be sold to<br />

petroleum <strong>in</strong>dustries.<br />

2. Process<strong>in</strong>g<br />

2.1 Sort<strong>in</strong>g unit<br />

Figure C-14 Oil recovery plant <strong>in</strong> Hua-H<strong>in</strong><br />

This unit <strong>in</strong>cludes digg<strong>in</strong>g, rotary separation, manual sort<strong>in</strong>g, air separation and weight<strong>in</strong>g.<br />

A sort<strong>in</strong>g unit is operated by labors <strong>of</strong> Hua-H<strong>in</strong> municipality. The detailed steps <strong>of</strong> the<br />

sort<strong>in</strong>g unit are:<br />

Digg<strong>in</strong>g: excavators dig waste from the covered landfill. There are not only plastic<br />

waste, but also paper, glass, metals, rubber, etc. Thus, dug waste is sorted to get<br />

only plastic bags. Dug wastes are shown <strong>in</strong> Figure C-15.<br />

Figure C-15 Dug waste<br />

Rotary separation: There is a drum screen which is used to separate heavy<br />

components out <strong>of</strong> the dug waste. This mach<strong>in</strong>e was imported from India, where it<br />

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