Evaluation of Plastic Waste Management in Thailand Using Material ...
Evaluation of Plastic Waste Management in Thailand Using Material ... Evaluation of Plastic Waste Management in Thailand Using Material ...
Table D-2 Details of calculation of the material flow of plastics in Thailand, 2010 (continued) No. Description 55 56 Fresh waste to oil Recycled product Value (Tonnes/year) 7,300.00 363,259 203 Assumption and Calculation There are three oil recovery plants of private company, and The three plants were set at TPI Polene PLC. (Saraburi province), Renewable Energy Ltd.,Co. (Saraburi province), and Bangkok Tyre Refinery Ltd., Co. (Chachoengsao province). The assumption is 6 tonnes/day of fresh plastic waste from community is fed into the reactor of oil recovery plants, so the amount of fresh plastic waste is 6,570 tonnes/year. Nowadays, the oil recovery plants of the Renewable Energy and Tyre Refinery company are not operated because there is not any middle dealer and waste shop who sell fresh plastic wastes. The TPI Polene company has the municipal solid wastes from community to burn in cement plant, and the sorted plastic wastes are fed in the pyrolysis reactor. Moreover, the one oil recovery plant is in Rajamangala University of Technology Thunyaburi (RMUTT). This plant uses 2 tonnes/day of fresh plastic waste, so the amount of fresh plastic waste is 730 tonnes/year. Thus, the total amount of fresh plastic waste is 7,300 tonnes/year. The recycled product means that plastic wastes from collection and transportation process are recycled into plastic pellets (pelletizing) because most plastic products are produced from plastic pellets. According to the case study of pelletizing factory, 86% of plastic waste will become recycled plastic pellets/products (Jantanaroch, 2010).
Table D-2 Details of calculation of the material flow of plastics in Thailand, 2010 (continued) No. Description 57 58 Residue waste from material recycling Undisposed waste (Thermosetting) Value (Tonnes/year) 59,135 12,576 204 Assumption and Calculation The amount of thermoplastic waste is used to recycle was 422,394 tonnes/year because the aggregate of 256,934 tonnes of MSW, 155,000 tonnes of industrial waste for recycling and 17,760 tonnes of imported wastes were deducted by 7,300 tonnes of fresh waste for oil recovery before calculation. Then, the calculation was done by using 422,394 tonnes of thermoplastic multiplying by the percentage of recycled product generation. Thus, the amount of recycled product was 363,259 tonnes/year. The residue waste from material recycling means that plastic wastes from collection and transportation process cannot recycled into plastic pellets (pelletizing) and become wastes after manufacturing According to the case study of pelletizing factory, 14% of waste generation from material recycling in the manufacture (Jantanaroch, 2010). The amount of thermoplastic waste is used to recycle was 422,394 tonnes/year because the aggregate of 256,934 tonnes of MSW, 155,000 tonnes of industrial waste for recycling and 17,760 tonnes of imported wastes were deducted by 7,300 tonnes of fresh waste for oil recovery before calculation. Then, the calculation was done by using 422,394 tonnes of thermoplastic multiplying by the percentage of residue waste generation. Thus, the amount of residue waste generation was 59,135 tonnes/year. The undisposed waste means that wastes may not be collected and disposed, and it is in the environment by open dumping and burning. According to PCD (2010), 47% of improper waste disposal. The assumption is 61% of MSW thermosetting wastes was not disposed properly. The amount of thermosetting waste which is used to calculate was 20,616 tonnes/year, so, the amount of improper thermosetting waste disposal was 12,576 tonnes/year (Not present in the material flow).
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Table D-2 Details <strong>of</strong> calculation <strong>of</strong> the material flow <strong>of</strong> plastics <strong>in</strong> <strong>Thailand</strong>, 2010 (cont<strong>in</strong>ued)<br />
No. Description<br />
57<br />
58<br />
Residue waste<br />
from material<br />
recycl<strong>in</strong>g<br />
Undisposed waste<br />
(Thermosett<strong>in</strong>g)<br />
Value<br />
(Tonnes/year)<br />
59,135<br />
12,576<br />
204<br />
Assumption and Calculation<br />
The amount <strong>of</strong> thermoplastic waste is used to recycle was 422,394 tonnes/year because the<br />
aggregate <strong>of</strong> 256,934 tonnes <strong>of</strong> MSW, 155,000 tonnes <strong>of</strong> <strong>in</strong>dustrial waste for recycl<strong>in</strong>g and 17,760<br />
tonnes <strong>of</strong> imported wastes were deducted by 7,300 tonnes <strong>of</strong> fresh waste for oil recovery before<br />
calculation. Then, the calculation was done by us<strong>in</strong>g 422,394 tonnes <strong>of</strong> thermoplastic multiply<strong>in</strong>g by<br />
the percentage <strong>of</strong> recycled product generation. Thus, the amount <strong>of</strong> recycled product was 363,259<br />
tonnes/year.<br />
The residue waste from material recycl<strong>in</strong>g means that plastic wastes from collection and<br />
transportation process cannot recycled <strong>in</strong>to plastic pellets (pelletiz<strong>in</strong>g) and become wastes after<br />
manufactur<strong>in</strong>g Accord<strong>in</strong>g to the case study <strong>of</strong> pelletiz<strong>in</strong>g factory, 14% <strong>of</strong> waste generation from<br />
material recycl<strong>in</strong>g <strong>in</strong> the manufacture (Jantanaroch, 2010).<br />
The amount <strong>of</strong> thermoplastic waste is used to recycle was 422,394 tonnes/year because the<br />
aggregate <strong>of</strong> 256,934 tonnes <strong>of</strong> MSW, 155,000 tonnes <strong>of</strong> <strong>in</strong>dustrial waste for recycl<strong>in</strong>g and 17,760<br />
tonnes <strong>of</strong> imported wastes were deducted by 7,300 tonnes <strong>of</strong> fresh waste for oil recovery before<br />
calculation. Then, the calculation was done by us<strong>in</strong>g 422,394 tonnes <strong>of</strong> thermoplastic multiply<strong>in</strong>g by<br />
the percentage <strong>of</strong> residue waste generation. Thus, the amount <strong>of</strong> residue waste generation was<br />
59,135 tonnes/year.<br />
The undisposed waste means that wastes may not be collected and disposed, and it is <strong>in</strong> the<br />
environment by open dump<strong>in</strong>g and burn<strong>in</strong>g. Accord<strong>in</strong>g to PCD (2010), 47% <strong>of</strong> improper waste<br />
disposal. The assumption is 61% <strong>of</strong> MSW thermosett<strong>in</strong>g wastes was not disposed properly.<br />
The amount <strong>of</strong> thermosett<strong>in</strong>g waste which is used to calculate was 20,616 tonnes/year, so, the<br />
amount <strong>of</strong> improper thermosett<strong>in</strong>g waste disposal was 12,576 tonnes/year (Not present <strong>in</strong> the<br />
material flow).
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