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Microcosm Assays and Taguchi Experimental Design for Treatment of Oil Sludge Containing High Concentration of Hydrocarbons

Microcosm Assays and Taguchi Experimental Design for Treatment of Oil Sludge Containing High Concentration of Hydrocarbons

G Castorena-Cortés, T Roldán-Carrillo, I Zapata-Peñasco, J Reyes-Avila, L Quej-Aké, J Marín-Cruz, P Olguín-Lora

Bioresour Technol. 2009 Dec;100(23):5671-7.

PMID: 19635663

Abstract:

Microcosm assays and Taguchi experimental design was used to assess the biodegradation of an oil sludge produced by a gas processing unit. The study showed that the biodegradation of the sludge sample is feasible despite the high level of pollutants and complexity involved in the sludge. The physicochemical and microbiological characterization of the sludge revealed a high concentration of hydrocarbons (334,766+/-7001 mg kg(-1) dry matter, d.m.) containing a variety of compounds between 6 and 73 carbon atoms in their structure, whereas the concentration of Fe was 60,000 mg kg(-1) d.m. and 26,800 mg kg(-1) d.m. of sulfide. A Taguchi L(9) experimental design comprising 4 variables and 3 levels moisture, nitrogen source, surfactant concentration and oxidant agent was performed, proving that moisture and nitrogen source are the major variables that affect CO(2) production and total petroleum hydrocarbons (TPH) degradation. The best experimental treatment yielded a TPH removal of 56,092 mg kg(-1) d.m. The treatment was carried out under the following conditions: 70% moisture, no oxidant agent, 0.5% of surfactant and NH(4)Cl as nitrogen source.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS2121371	TPH in Water (high level)			Price

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