Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Nasiri, Masoud; Jafari, Iman

doi:10.3311/ppch.8786

Cited by 27 publications

(26 citation statements)

References 33 publications

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“…Produced water compound is categorized as organic substance, inorganic substance, and radionucleotide. Moreover, produced water contains some important compounds, such as dissolved and dispersed oil compounds, dissolved formation minerals, production chemical compounds, production solids, and dissolved gases [2]. Oils consist of monocyclic aromatic hydrocarbons such as benzene, toluene, ethylbenzene, and xylene (BTEX), polyaromatic hydrocarbons (PAH), and related heterocyclic aromatic compounds [3].…”

Section: Introductionmentioning

confidence: 99%

Performance of Ultrafiltration–Ozone Combined System for Produced Water Treatment

Aryanti

Kusworo

Oktiawan

et al. 2019

Period. Polytech. Chem. Eng.

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Oil exploration waste, also called produced water, contains hazardous pollutants, such as benzene; benzene, toluene, and xylene (BTX); naphthalene, phenanthrene, and dibenzothiophene (NDP); polyaromatic hydrocarbons (PAHs); and phenol. Produced water is characterized by high chemical oxygen demand (COD) and oil content, which exceed the standard limits of regulation. In this study, the combination of ultrafiltration (UF) and ozone pre-treatment and post-treatment were applied for treatment of produced water to minimize its environmental impact. Produced water and membrane were characterized, and their ultrafiltration performance for removal of oil content, benzene, toluene, xylene, and COD. Two commercial Polyethersulfone membranes, with molecular-weight cut-off values of 10 and 20 kDa, were used. The membrane flux profile illustrated that ozone pre-treatment had higher normalized flux than UF only. Separation performance was evaluated based on flux profile and removal of COD, oil and grease content, toluene, and xylene. Significant finding was found where the combination of UF with ozone pre-treatment and post-treatment could significantly eliminate COD, oil content, toluene, and xylene. The rejection of these components was found higher than conventional process, which was in the range of 80 % to 99 %. In addition, almost oil and grease can be removed by using this combined system. Permeate quality of this system confirmed the acceptable level as water discharge.

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Section: Introductionmentioning

confidence: 99%

Performance of Ultrafiltration–Ozone Combined System for Produced Water Treatment

Aryanti

Kusworo

Oktiawan

et al. 2019

Period. Polytech. Chem. Eng.

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“…ONTs were hybridized with MNPs prepared by the conventional method. No ONT-MNP hybrids were formed at neutral and alkaline pH (5-12), but were formed at weak acidic pH (3)(4). ONTs aggregated tightly and produced no hybrids at strong acidic pH (1)(2)(3).…”

Section: Hybridization Of Onts With Ferromagneticmentioning

confidence: 99%

Produced Water Treatment Using Self-assembled Organic Nanotubes as Adsorbents

Kogiso

Aoyagi

2018

J. Jpn. Petrol. Inst.

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A novel treatment technique for produced water was developed using organic nanotubes (ONTs) as adsorbents. ONTs formed by the self-assembly of peptide lipids are known to adsorb heavy metals and hydrophobic molecules. Preferential adsorption of heavy metals against alkali-and alkali-earth metals above pH 6 was confirmed. Pb 2 in high-salinity model produced water was reduced to 0.04 ppm by treatment with ONTs, compared to 0.84 ppm without ONTs. The selectivity of Pb 2 against alkali-earth metals was over 3000. Design of the molecular structures of peptide lipids reduced the content of p-cresol in model produced water from 13 to less than 1 ppm. To improve separation from wastewater, ONTs hybridized with magnetic nanoparticles (MNPs) were obtained through the pH adjusting method. Hybrids maintained the hybridized state over a wide pH range (1-9). Adsorption tests using real produced water indicated that ONTs could adsorb heavy metals, suspended solids, oil, and some organic compounds in produced water in a one-step process, without pre-treatment.

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“…On the other hand, biological treatment studies have shown that rotating biological contactor (RBC) discs removed 78%-97% of COD and 95%-99% of TPH [48][49][50][51], and a membrane bioreactor (MBR) removed 96% of COD [11]. Nevertheless, new technologies have been tested, such as membrane in reverse osmosis (RO) and filtration membranes (which removed 82%-99% of COD [52][53][54][55]) and a hybrid microfiltration (MF)/ultrafiltration (UF) process (which removed 94.4%-98.8% of COD [56]).…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Continuous Extraction and Fractional Distillation for the Removal of Organic Compounds from the Wastewater of the Oil Industry

Mendoza

Moreno

Guerrero-Fajardo

et al. 2019

Water

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This is the first study to carry out a laboratory-scale assay to assess the potentiality of continuous liquid-liquid extraction with dichloromethane (CLLE DCM ) 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. CLLE DCM -HPFD yielded 92.4%-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%-100.0%, and the chemical oxygen demand (COD) decreased by 90.5%-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 > CLLE DCM -HPFD > CLLE DCM . CLLE DCM treatment alone produced TWW with poorer quality, and the CLLE DCM -HPFD sequence involved the greatest consumption of time and energy (0.390-0.905 kWh/kg). CLLE DCM -only was the least effective treatment because the TWW obtained failed to comply with the regulations of oil-producing countries.

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Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Cited by 27 publications

References 33 publications

Performance of Ultrafiltration–Ozone Combined System for Produced Water Treatment

Performance of Ultrafiltration–Ozone Combined System for Produced Water Treatment

Produced Water Treatment Using Self-assembled Organic Nanotubes as Adsorbents

Liquid–Liquid Continuous Extraction and Fractional Distillation for the Removal of Organic Compounds from the Wastewater of the Oil Industry

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