Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect?

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Q: 117 (SSC/NA)

Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,7,30,12,7,7,11

keywords: 

{'pyrolysis': [1, 0, 0, 0], 'solid waste treatment': [1, 0, 0, 0], 'thermochemical decomposition': [1, 0, 0, 0], 'organic waste': [1, 0, 0, 0], 'process': [16, 0, 12, 37], 'waste': [1, 0, 1, 4], 'gas': [9, 1, 9, 27], 'resultant liquid': [1, 0, 0, 0], 'energy': [0, 0, 1, 2]}

Option 1 is correct because pyrolysis does indeed convert solid waste into solid, liquid, and gas products. The resultant liquid and gas can be used to produce energy.

Option 2 is incorrect because pyrolysis actually occurs at a temperature above 430°C, but it does not necessarily need to be at atmospheric pressure. Pyrolysis can be carried out under varying pressure conditions depending on the specific process and equipment used.

Option 3 is also incorrect because pyrolysis does not occur under high pressure. It typically occurs at atmospheric pressure or slightly above.

Option 4 is correct because pyrolysis is a thermochemical decomposition process that breaks down organic waste by heating it in the absence of oxygen. This results in the production of solid char, liquid bio-oils, and gases.