class A oils have a maximum sludge of
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impurities because it is unpurified oil
it can harm people during burning of smelling
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Oils have maximum sludge of toxic substances and solid residues.
• Crude oil is a mixture of hydrocarbons. Petroleum is a crude oil consisting of a complex mixture of hydrocarbons.
• typically, oil sludge can't be incinerated because it contains too much oil and water.
• Oil sludge can be generated from the petroleum industry during its crude oil exploration.
• We should take proper treatment and correct disposal of this type of wastes prevents the contamination of external and groundwater.
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