Removal of oil pollutants in seawater as pretreatment of reverse osmosis desalination process

Jian, Wen; Kitanaka, Atsushi; Nishijima, Wataru; Baes, Aloysius U.; Okada, Minoru

doi:10.1016/s0043-1354(98)00404-7

Cited by 28 publications

(7 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, there is a need to come up with a way of purifying water, which is effective and also cost effective even at very low metal concentrations. Removal of heavy metals from wastewaters has been achieved through chemical precipitation [4,5], ion exchange [6,7], ion flotation [8,9], 2 Journal of Chemistry adsorption [5,[10][11][12], reverse osmosis [13][14][15][16][17], and membrane filtration [8][9][10]18]. Although these conventional methods have higher capacity for the removal of toxic heavy metals, their utilization may require several pretreatments as well as additional treatments, thereby incurring high installation and operating cost [19,20].…”

Section: Introductionmentioning

confidence: 99%

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Maina

Obuseng

Nareetsile

2016

Journal of Chemistry

View full text Add to dashboard Cite

Use of nonedible seed pods ofMoringa oleifera(Moringa) tree and nutshells ofSclerocarya birrea(Morula) tree for removal of selected metal ions (lead, cadmium, copper, manganese, iron, zinc, and magnesium) from wastewater and borehole water samples was investigated. Removal parameters such as contact time, pH, temperature, particle size, sorbent dose, and initial metal concentration were optimized. Determination of residual metal ions after employing sorbent was done using flame atomic absorption spectroscopy (FAAS). Using 200 ng synthetic metal ion mixture in 50 mL of water sample, the optimized parameters for Moringa seed pods were 60 min contact time, 1.0 g of sorbent dose, pH 8, 100 μm sorbent particle size, and extraction temp 35°C. While using Morula nutshells, the optimized conditions were 120 min contact time, 2.0 g sorbent dose, pH 8, 100 μm sorbent particle size, and extraction temp of 35°C. The removal efficiency of acid treated sorbents was compared to that of untreated sorbents and it was found to be higher for acid treated sorbents. These nonedible plant parts for Morula and Moringa plants are proposed as a cheap, simple, and an effective alternative for purification of water contaminated with heavy metals.

show abstract

Section: Introductionmentioning

confidence: 99%

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Maina

Obuseng

Nareetsile

2016

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…The risk of membrane fouling prevents general operation at high permeate flux especially for feed waters with impurities such as hydrocarbons (oil) and cellular or extracellular material (from bacteria) (Jian, Kitanaka, Nishijima, Baes, & Okada, 1998;Williams & Edyvean, 1998). However, the RO system can be operated at a higher permeate flux.…”

Section: Conventional and Membrane Pretreatment For Ro Feed Watermentioning

confidence: 99%

Water treatment by reverse and forward osmosis

Rastogi

Cassano

Basile

2015

Advances in Membrane Technologies for Water Treatment

View full text Add to dashboard Cite

“…Weathering process depends on the type and quantity of oil used (Jian et al 1999). In addition, the prevailing weather and sea conditions and whether the oil remains at sea or is washed ashore contribute to the severity of the weathering process.…”

Section: Preparation Of Weathered Oil-contaminated Seawatermentioning

confidence: 99%

“…Aromatic hydrocarbons in the WOCS were detected at 260 nm using a UV spectrophotometer (Jian et al 1999). Volatile petroleum products were expected to evaporate within 24 h; however, some will dissolve into the water akin to non-volatile petroleum products.…”

Section: Removal Of Dissolved Organic Compounds From Wocsmentioning

confidence: 99%

Adsorption Kinetics and Capacity of Fatty Acid-Modified Banana Trunk Fibers for Oil in Water

Sathasivam

Haris

2010

Water Air Soil Pollut

View full text Add to dashboard Cite

Oil spill leaves detrimental effects to environment, living organisms, and economy. As such, it is of considerable interest to find an effective, simple, and inexpensive method to treat this calamity. This work reports the use of banana trunk fibers (BTF) modified with oleic acid, stearic acid, castor oil, and palm oil for oil spill recovery. The maximum sorption capacity, effect of oil to water ratio, effect of light oil fractions, and effect of dissolved organic compounds in weathered oil-contaminated seawater were studied. It is found that BTF treated with oleic acid exhibited the best sorption capacity for engine oil, dissolved organic compounds in weathered oil, and light oil fractions. The equilibrium process was described well by the Freundlich isotherm model, and the kinetic studies show good correlation coefficients for a pseudo-second-order kinetic model.

show abstract

Removal of oil pollutants in seawater as pretreatment of reverse osmosis desalination process

Cited by 28 publications

References 17 publications

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Water treatment by reverse and forward osmosis

Adsorption Kinetics and Capacity of Fatty Acid-Modified Banana Trunk Fibers for Oil in Water

Contact Info

Product

Resources

About