Introduction to industrial membrane processes

Scott, K.; Hughes, R.

doi:10.1007/978-94-011-0627-6_1

Cited by 18 publications

(23 citation statements)

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“…Energy costs were fixed at 0.10 € kWh −1 , whereas membrane module and housing were equal to 22 € m −2 and 380 €. Pumps, piping and instrumentation of the RO membrane plant represent approximately 50% of the membrane housing costs, whereas facility space needs and services represent 15% of total costs [ 35 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

Performance Modeling and Cost Analysis of a Pilot-Scale Reverse Osmosis Process for the Final Purification of Olive Mill Wastewater

et al. 2013

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A secondary treatment for olive mill wastewater coming from factories working with the two-phase olive oil production process (OMW-2) has been set-up on an industrial scale in an olive oil mill in the premises of Jaén (Spain). The secondary treatment comprises Fenton-like oxidation followed by flocculation-sedimentation and filtration through olive stones. In this work, performance modelization and preliminary cost analysis of a final reverse osmosis (RO) process was examined on pilot scale for ulterior purification of OMW-2 with the goal of closing the loop of the industrial production process. Reduction of concentration polarization on the RO membrane equal to 26.3% was provided upon increment of the turbulence over the membrane to values of Reynolds number equal to 2.6 × 104. Medium operating pressure (25 bar) should be chosen to achieve significant steady state permeate flux (21.1 L h−1 m−2) and minimize membrane fouling, ensuring less than 14.7% flux drop and up to 90% feed recovery. Under these conditions, irreversible fouling below 0.08 L h−2 m−2 bar−1 helped increase the longevity of the membrane and reduce the costs of the treatment. For 10 m3 day−1 OMW-2 on average, 47.4 m2 required membrane area and 0.87 € m−3 total costs for the RO process were estimated.

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Section: Resultsmentioning

confidence: 99%

Performance Modeling and Cost Analysis of a Pilot-Scale Reverse Osmosis Process for the Final Purification of Olive Mill Wastewater

et al. 2013

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“…Membranes can be used to remove viruses, colloids, materials, heavy metal, etc. For example, they can be used for dialysis, juice concentration, wastewater treatment, liquid sterilization, and drinking water purification . The most important parameter of the membrane is pore size.…”

Section: Applicationsmentioning

confidence: 99%

Functional Nanofibers and Their Applications

Lou

Osemwegie

Ramkumar

2020

Ind. Eng. Chem. Res.

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The methods to provide functions to nanofiber webs and applications, characterization, evaluation methods, market value, and future directions of nanofiber webs are summarized and presented in this review. Incorporating drugs, nanoparticles, functional matters, or arranging special surface structures are customarily used methods to furnish the performance of nanofibers. The promising application areas of nanofiber webs include drug delivery, water filtration, biomedical application, energy storage protective clothing, and air/gas filtration. The characterization of nanofiber webs includes general and functional properties. The market values of nanofiber products are summarized and analyzed based on the reports conducted by BBC Research.

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“…Membrane fouling is one of the main problems of membrane unit operations. 1 For membrane-based water treatment techniques, mitigating membrane fouling in an efficient and long-lasting manner is an urgent challenge. 2 Fouling is a major reason which leads to membrane pollution.…”

Section: Introductionmentioning

confidence: 99%

One-Step Electrochemically Prepared Graphene/Polyaniline Conductive Filter Membrane for Permeation Enhancement by Fouling Mitigation

Sun

et al. 2020

Langmuir

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In the electrofiltration process, membrane conductivity plays a decisive role in improving the antifouling performance of the membrane. In this paper, combining the preparation of graphene (Gr) with the fabrication of the Gr layer on the surface of a polyaniline (PANI) membrane, a graphene/PANI (Gr/PANI) conductive membrane was prepared creatively by the one-step electrochemical method. The properties of the as-prepared Gr/PANI membrane were studied systematically. By the tests of Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and atomic force microscopy, it was confirmed that Gr was successfully produced and was combined with the PANI membrane well. Field scanning electron microscopy with energy-dispersive X-ray analysis further confirmed that the top surface and the upper layer pore walls of the membrane were randomly covered by Gr. The antifouling performance of the prepared membrane was evaluated by studying the permeation flux of the yeast suspension, compared with the ones with no electric field: the total permeation flux at 1 V direct current (dc) increased by 109%; besides, under 1 V dc, the average flux of the Gr/PANI membrane was approximately 1.4 times that of the PANI membrane. This approach may provide a promising strategy for the combination of Gr with conductive polymers to produce separation membranes.

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Introduction to industrial membrane processes

Cited by 18 publications

References 0 publications

Performance Modeling and Cost Analysis of a Pilot-Scale Reverse Osmosis Process for the Final Purification of Olive Mill Wastewater

Performance Modeling and Cost Analysis of a Pilot-Scale Reverse Osmosis Process for the Final Purification of Olive Mill Wastewater

Functional Nanofibers and Their Applications

One-Step Electrochemically Prepared Graphene/Polyaniline Conductive Filter Membrane for Permeation Enhancement by Fouling Mitigation

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