Recycling of oleochemical wastewater for boiler feed water using reverse osmosis membranes — A case study

Koo, Chai Hoon; Mohammad, Abdul Wahab; Sujá, Fatihah

doi:10.1016/j.desal.2010.12.025

Cited by 46 publications

(23 citation statements)

References 37 publications

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“…Decrease of total petroleum hydrocarbon (TPH) and chemical oxygen demand (COD) by HPFD, CLLE DCM , or CLLE DCM -HPFD (on a laboratory scale) in the nondomestic wastewater sampled in the sedimentation pond of the petroleum production area (WW). Similar or higher decreases in COD and TPH from decontamination treatments of wastewater have been reported in the literature by only a few other studies using more expensive and sophisticated treatments that require special equipment and more controlled conditions than those of HTFD or CLLE DCM [42,[66][67][68].…”

Section: Physicochemical Analysis Of Tww By Clledcm Htfd or Clledcmsupporting

confidence: 78%

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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Section: Physicochemical Analysis Of Tww By Clledcm Htfd or Clledcmsupporting

confidence: 78%

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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“…In thermal method the breakdown of calcium and magnesium salts is triggered by temperature exceeding 37°C [4]. The physical methods encompass various high pressure membrane filtration processes, including the processes of reverse osmosis and nanofiltration [5,6]. The chemical methods consist of chemical precipitation of insoluble precipitate or binding the calcium and magnesium ions into complex compounds with the help of various reagents, such as calcium hydroxide (lime), sodium bicarbonate (soda), sodium hydroxide (caustic soda), phosphates, barium salts and others.…”

Section: A R C H I T E C T U R E C I V I L E N G I N E E R I N G E N mentioning

confidence: 99%

Removal of Hardness in Wastewater Effluent Using Membrane Filtration

Dudziak

Kudlek

2019

Architecture, Civil Engineering, Environment

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Hardness is a measure of the amount of calcium and magnesium salt that is present in water. In general, surface water is characterized by lower hardness than groundwater. Water with a hardness of up to 100 mgCaCO 3 /L is regarded as very soft, between 100 and 200 mgCaCO 3 /L as soft, between 200 and 350 mgCaCO 3 /L as medium-hard, between 350 and 550 mgCaCO 3 /L as hard and above 550 mgCaCO 3 /L as very hard [1]. The effluents from urban wastewater treatment plant may be characterized by high concentrations of both calcium and magnesium salts which contribute to the hardness of this particular water flux [2]. It applies primarily to places where the distribution systems draw water from underground sources. Using hard water, for instance, in households causes the domestic wastewater to be hard as well. The hardness of wastewater is not a normative indicator. However, it is an important research aspect in the field of water recovery. In general, there are five types of water softening

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“…Hardness ions in water can be concentrated beyond the solubility limit resulting in scale deposition, which can have a deleterious effect on pipes, water heaters, sinks etc. [10,11]. At present, methods like chemical precipitation, ion exchange, electrodialysis, and reverse osmosis are used to soften water.…”

Section: Introductionmentioning

confidence: 99%

Performance and Microbial Community of Simultaneous Denitrification and Biomineralization in Bioreactors

Bai

Gao

et al. 2019

Chem Eng & Technol

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The effects of combined different strains on a simultaneous denitrification and biomineralization process were examined. The influence of sodium succinate concentration, pH, and hydraulic retention time on nitrate and hardness removal was evaluated in bioreactors. Experimental results indicated that high nitrate and hardness removal efficiencies were obtained under optimum conditions. The community diversity was markedly influenced by the concentration of sodium succinate. The findings proved that Pseudomonas sp. H117 and Pseudomonas sp. H2 played a key role in the process of nitrate and hardness removal. The main component of sedimentation generated from the bioreactor was detected as calcium ion precipitation by scanning electron microscopy and X-ray diffraction.

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Recycling of oleochemical wastewater for boiler feed water using reverse osmosis membranes — A case study

Cited by 46 publications

References 37 publications

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

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

Removal of Hardness in Wastewater Effluent Using Membrane Filtration

Performance and Microbial Community of Simultaneous Denitrification and Biomineralization in Bioreactors

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