Abstract
In general it can be stated that the newly developed remediation process eliminates naturally applied natural gas odorant - tetrahydrothiophene with an aqueous solution of perborate with the addition of acetic acid at normal temperature by immersion of contaminated metal and plastic material. During a detail laboratory study, it was demonstrated by gas chromatography using a specific sulfur chemiluminescent detector that 1 kg of tetrahydrothiophene could be used to decontaminate 1 kg of tetrahydrothiophene 3.5 kg of sodium perborate in the presence of CH3COOH. The total oxidative decomposition time of the odorant occurred in about 20 hours. At elevated temperatures - 40° C - the process proceeds at a slightly higher rate. A higher ratio of perborate to tetrahydrothiophene also has a positive effect on the faster course and degree of decomposition.
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