Liquid–Liquid Continuous Extraction and Fractional Distillation for the Removal of Organic Compounds from the Wastewater of the Oil Industry
| Autor: | Sonia Milena Vegas Mendoza, Ricardo Fierro Medina, Eliseo Avella Moreno, Carlos Alberto Guerrero Fajardo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Fractional distillation
lcsh:Hydraulic engineering Geography Planning and Development fractional distillation 02 engineering and technology continuous liquid–liquid extraction 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry chemistry.chemical_compound lcsh:Water supply for domestic and industrial purposes chemical oxygen demand 020401 chemical engineering lcsh:TC1-978 total petroleum hydrocarbon 0204 chemical engineering 0105 earth and related environmental sciences Water Science and Technology Dichloromethane Pollutant lcsh:TD201-500 Chemistry Extraction (chemistry) Chemical oxygen demand Pulp and paper industry Environmentally friendly Wastewater Total petroleum hydrocarbon removal of organic compounds |
| Zdroj: | Water Volume 11 Issue 7 Water, Vol 11, Iss 7, p 1452 (2019) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w11071452 |
| Popis: | This is the first study to carry out a laboratory-scale assay to assess the potentiality of continuous liquid&ndash liquid extraction with dichloromethane (CLLEDCM) and high-power fractional distillation (HPFD) as a treatment to decontaminate the wastewater generated by the petroleum industry (WW). The analytical parameters of treated wastewater (TWW) evidenced a remarkable quality improvement compared to the original WW. CLLEDCM&ndash HPFD yielded 92.4%&ndash 98.5% of the WW mass as more environmentally friendly water. Compared to the original values determined in the WW, total petroleum hydrocarbon (TPH) decreased by 95.0%&ndash 100.0%, and the chemical oxygen demand (COD) decreased by 90.5%&ndash 99.9%. Taking into account the yield of the treated water, the amount of pollutant removed, and the risks of each process, the order of the potentiality of these treatments, from highest to lowest, was HPFD > CLLEDCM&ndash HPFD > CLLEDCM. CLLEDCM treatment alone produced TWW with poorer quality, and the CLLEDCM&ndash HPFD sequence involved the greatest consumption of time and energy (0.390&ndash 0.905 kWh/kg). CLLEDCM-only was the least effective treatment because the TWW obtained failed to comply with the regulations of oil-producing countries. |
| Databáze: | OpenAIRE |
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