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Membranes
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Membrane Distillation for Wastewater Treatment
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Membrane Distillation for Wastewater Treatment

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications".

Deadline for manuscript submissions: closed (10 February 2023) | Viewed by 3204

Special Issue Editor

Prof. Dr. Fei Guo

E-Mail Website1 Website2
Guest Editor
School of Energy and Power Engineering, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
Interests: membrane distillation; thermodynamics; electrospinning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The membrane distillation (MD) process is a combination of thermodynamics as well as transport and membrane technologies. It is the latest trend of next-generation separation technology and uses porous membranes as the media. The observed growing interest in MD technology is attributed to the MD advantageous characteristics. Currently, tremendous progress has been made in all aspects of MD science and technology in the laboratory towards its industrial implementation.

During the last decade, research on the MD process applied to wastewater treatment has attracted considerable attention. Due to its immense potential and versatility, MD has recently shed some light on how we can reduce the risk associated with polluting wastewater streams. This Special Issue, entitled “Membrane distillation for wastewater treatment”, is oriented towards the publication of both the recent progress made and future perspectives on the applications of the MD process for wastewater treatment.

We look forward to receiving your contributions.

Prof. Dr. Fei Guo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • membrane distillation
  • wastewater treatment
  • membrane development
  • processes development
  • sustainability
  • thermodynamics
  • pilot plant design
  • fouling
  • wetting
  • failure analysis

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Published Papers (2 papers)

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Research

12 pages, 2314 KiB  
Article
Study on Treatment of Tiny Pollution Water with PAC-HUM System in Kuitun River
by Liang Pei and Jia Duo
Membranes 2022, 12(10), 1010; https://doi.org/10.3390/membranes12101010 - 18 Oct 2022
Cited by 2 | Viewed by 1352
Abstract
Kuitun city, Xinjiang is dry and short of water, so it is urgent to treat and utilize all kinds of unconventional water. In view of this problem, we conducted a study on the treatment of tiny pollution water in Kuitun River. We investigated [...] Read more.
Kuitun city, Xinjiang is dry and short of water, so it is urgent to treat and utilize all kinds of unconventional water. In view of this problem, we conducted a study on the treatment of tiny pollution water in Kuitun River. We investigated the effect of dosage of powder activated carbon (PAC) on hollow-fiber ultrafiltration membrane (HUM) performance. The results show that the stable operation time of hollow fiber ultrafiltration membranes lengthened and the rate of reduction of the flux was reduced when the PAC dosage was increased. The addition of PAC had no obvious effect on the resistance of membrane filtration. We conducted experiments to evaluate the effect of ultrafiltration of tiny pollution water in combination with PAC. When the parameters of operation and PAC dosage were appropriately regulated, the removal rates of chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and ferric ions (Fe) reached 62%, 32% and 90%, respectively. When the PAC dosage was 200 mg/L, 100 mg/L and 150 mg/L, the highest removal rates were achieved under normal temperature and pressure. The effluent COD was less than 5.0 mg/L, NH3-N was less than 1.5 mg/L and Fe was less than 0.5 mg/L, achieving better results than the quality standard of surface water (GB3838-2002). The treated water can be discharged into the river or recirculated to utilities. The fouled membrane was cleaned by water rinsing, water/acid rinsing and water/alkali rinsing, with recovery ratios of 44%, 81% and 88%, respectively. The results of this study can serve as a foundation for the efficient utilization of water resources and the development of new water treatment technologies in Xinjiang. Full article
(This article belongs to the Special Issue Membrane Distillation for Wastewater Treatment)
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10 pages, 2212 KiB  
Article
Dislodging Dichromate in Mine Slops Applying Flat Supplying Membrane Equipment Containing Carrier N235/7301
by Liang Pei
Membranes 2022, 12(9), 880; https://doi.org/10.3390/membranes12090880 - 12 Sep 2022
Viewed by 1453
Abstract
A novel flat supplying membrane equipment (FSME) with a sodium hydroxide solution and a mixture of N235/7301 and petroleum has been studied for dislodging dichromate (which can be expressed as Cr (VI) or Cr2O72−) from simulated mine slops. [...] Read more.
A novel flat supplying membrane equipment (FSME) with a sodium hydroxide solution and a mixture of N235/7301 and petroleum has been studied for dislodging dichromate (which can be expressed as Cr (VI) or Cr2O72−) from simulated mine slops. The FSME contained three parts: as a feeding cell, a reacting cell, and a supplying cell. The flat Kynoar membrane was inlaid in the middle of the reacting cell, using the mixed solutions of petroleum and sodium hydroxide, with Tri (octyl decyl) alkyl tertiary amine (N235/7301) as the carrier in the supplying cell and the mine slops with Cr (VI) as the feeding section. The impact parameters of pH and the other ion density in the feeding solutions, the voluminal ratio of petroleum to sodium hydroxide solution and N235/7301 concentration in the supplying solutions were investigated for the obtaining of the optimal technique parameters. It was found that the dislodging rate of Cr (VI) could reach 93.3% in 215 min when the concentration of carrier (N235/7301) was 0.20 mol/L, the voluminal ratio of petroleum and sodium hydroxide in the supplying cell was 1:1, the pH of the feeding section was 4.00, and the Cr (VI) cinit was 3.00 × 10−4 mol/L. The practicability and steadiness of FSME were gained through the exploration of Cr (VI) adsorption on the membrane surface. Full article
(This article belongs to the Special Issue Membrane Distillation for Wastewater Treatment)
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