NF membrane characteristics and evaluation for sea water processing applications

Eriksson, Peter K.; Kyburz, Markus; Pergande, Wil

doi:10.1016/j.desal.2005.04.030

Cited by 53 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…TDS decreased from 44,000 to 27,700 mg/L. Eriksson et al (2005) also used NF followed by RO at 360 m 3 /h seawater in Umm Lujj in Saudi Arabia to reduce total hardness from 7500 to 220 ppm, TDS from 45,500 to 28,800 ppm, and Cl -from 21,600 to 16,400 ppm. SO 4 2-, Mg 2?…”

Section: Nanofiltrationmentioning

confidence: 96%

Bench-Scale and Pilot-Scale Treatment Technologies for the Removal of Total Dissolved Solids from Coal Mine Water: A Review

Pinto¹,

Al-Abed

Balz³

et al. 2015

Mine Water Environ

View full text Add to dashboard Cite

Coal mine water (CMW) is typically treated to remove suspended solids, acidity, and soluble metals, but high concentrations of total dissolved solids (TDS) have been reported to impact the environment at several CMW discharge points. Consequently, various states have established TDS wastewater regulations and the US EPA has proposed a benchmark conductivity limit to reduce TDS impacts in streams near mining sites. Traditional CMW treatment effectively removes some TDS components, but is not effective in removing major salt ions due to their higher solubility. This paper describes the basic principles, effectiveness, advantages, and disadvantages of various TDS removal technologies (adsorption, bioremediation, capacitive deionization, desalination, distillation, electrochemical ion exchange, electrocoagulation, electrodialysis, ion exchange, membrane filtration, precipitation, and reverse osmosis) that have at least been tested in benchand pilot-scale experiments.

show abstract

Section: Nanofiltrationmentioning

confidence: 96%

Bench-Scale and Pilot-Scale Treatment Technologies for the Removal of Total Dissolved Solids from Coal Mine Water: A Review

Pinto¹,

Al-Abed

Balz³

et al. 2015

Mine Water Environ

View full text Add to dashboard Cite

show abstract

“…A full scale plant in Saudi Arabia demonstrates the benefits that can be obtained via the use of NF [35]. The plant treats 8.6 ML/day, with the NF component…”

Section: Nanofiltrationmentioning

confidence: 99%

Desalination techniques — A review of the opportunities for desalination in agriculture

Burn

Hoang

Zarzo³

et al. 2015

Desalination

360

188

View full text Add to dashboard Cite

“…Control of scale deposition through dosing of antiscalants in PW is impractical, expensive, labor intensive, particularly for the important PW rates, and environment unfriendly in view of daily production of sludge to be disposed [13,14]. Use of antiscalants would also lead to adverse effects if they are hydrothermally or chemically unstable as the hexametaphosphate, which would hydrolyze to orthophosphate and form insoluble scales with hardness cations [19].…”

Section: Coagulation/filtration/nf Of Pw As Compared To Only Coagulatmentioning

confidence: 99%

“…NF treatment of PW was reported to enable high sulfate rejection before reinjection [13,14]. NF is also applied as pretreatment for sea water prior to desalination by RO.…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration of oil field-produced water for reinjection and optimum protection of oil formation

Khedr

2014

Desalination and Water Treatment

View full text Add to dashboard Cite

In view of the increasingly stringent norms of disposal of effluent from petroleum activities and interest in water conservation, the treatment of the oilfield-produced water (PW), the largest wastewater (WW) stream associated with oil and gas industry in the Suez Gulf, was investigated for injection in the oil formation to enhance oil production and other environmental-friendly reuse purposes. Long-term laboratory and pilot testing of treatment of PW and Gulf water (GW) by coagulation/filtration and coagulation/filtration/nanofiltration (NF) aimed to avoid blocking of the porous oil formation upon injection and to inhibit the detected corrosion and biomass accumulation on the internal wall of the injection piping, which was shown to re-contaminate the treated injection water. Analysis of PW showed the concentrations of TDS, organics including hydrocarbons, oil droplets, sulfate, silica, Boron, and suspended solids (SS) of 96472. 6, 268.2, 120.4, 7087.5, 134.4, 29.3, and 20.2, respectively. The high sulfate content of both PW and GW would explain the observed hardness scale, on the well casing and pipelines. Only trace concentrations of U 238 as complex carbonates and heavy metals as copper, vanadium, nickel, and lead were detected in GW. The thick biofilm detected inside the injection pipes consists of biomass of 92% water, extracellular polymer substance (EPS) of mainly anaerobic sulfate-reducing bacteria (SRB) of 1.8 × 10 9 MPN/gm, and iron compounds due to steel corrosion. The dry film includes high concentrations of iron, sulfur, and a remarkably high radioactivity of uranium 238 of 6,740 pCi/gm, heavy metals such as copper, chromium, lead, and vanadium at concentrations much higher than in GW. Results confirmed that SRB enzymatically reduced the trace uranium and the other soluble cations in PW and concentrated them in the biofilm with parallel depolarization of the cathodic-controlled corrosion of steel to produce ferric sulfide and other iron compounds. Coagulation of PW efficiently removed SS, organics including hydrocarbons and oil. Only partial removal of uranium took place, which was too pH dependent. However, since coagulation did not suppress the biofilm formation and the related phenomena of microbial corrosion and accumulation of radioactivity, the release of these components recontaminated the treated PW. On the other hand, the proposed process of "intermittent chlorination/coagulation/NF" of PW efficiently rejected sulfate, uranium, and other metal cations and polished the removal of SS, bacteria, and organics. This process inhibited the formation of scales and biofilm as well as the related undesirable phenomena and, therefore, stopped the recontamination of the PW prior to injection. Only poor accordance was observed between the experimentally determined percent rejection of PW components by NF and that computed according to the solution of the extended Nernst-Planck equation.

show abstract

NF membrane characteristics and evaluation for sea water processing applications

Cited by 53 publications

References 0 publications

Bench-Scale and Pilot-Scale Treatment Technologies for the Removal of Total Dissolved Solids from Coal Mine Water: A Review

Bench-Scale and Pilot-Scale Treatment Technologies for the Removal of Total Dissolved Solids from Coal Mine Water: A Review

Desalination techniques — A review of the opportunities for desalination in agriculture

Nanofiltration of oil field-produced water for reinjection and optimum protection of oil formation

Contact Info

Product

Resources

About