Fundamental membrane processes, science and engineering

Calabrò, Vincenza; Basile, Angelo

doi:10.1533/9780857093790.1.3

Cited by 6 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bentuk paling dasar dari proses filtrasi adalah dead-end filtration [8]. Dead-end filtration merupakan suatu proses batch karena akumulasi dari materi yang akan di saring pada filter akan mengurangi kapasitas filtrasi karena adanya penyumbatan pada membran [9].…”

Section: Pendahuluanunclassified

Pengaruh Tekanan Transmembran Pada Nilai Permeance Dalam Proses Pemisahan Senyawa Proanthocyanidin Menggunakan Metode Dead-End Membran Ultrafiltrasi

Afandy,

Sawali,

Siswanto

2022

JTKM

View full text Add to dashboard Cite

Salah satu jenis teknik pemisahan dengan menggunakan membran yakni teknologi yang menggunakan perbedaan tekanan sebagai gaya pendorong yang memiliki beberapa keunggulan antara lain efisiensi yang tinggi, pemisahan yang lebih selektif, mudah untuk di scale up, hemat energi, serta suhu dan tekanan operasi yang lebih aman. Tujuan dari penelitian ini yakni mengetahui pengaruh tekanan transmembran terhadap nilai permeance dari proses ultrafiltrasi senyawa proanthocyanidin dengan metode filtrasi dead-end. Jenis membran yang digunakan yakni membran Polyethersulfone (PES) dengan ukuran MWCO yang berbeda yakni 50 kDa dan 30 kDa. Hasil yang diperoleh dari penelitian ini menunjukkan bahwa tekanan transmembran akan mempengaruhi nilai permeance dimana ketika tekanan transmembran dinaikkan maka akan mengakibatkan turunnya nilai permeance dikarenakan tingginya nilai pressure drop, begitupun sebaliknya ketika tekanan transmembran diturunkan maka akan menaikkan nilai permeance karena nilai pressure drop yang cenderung lebih kecil.

show abstract

Section: Pendahuluanunclassified

Pengaruh Tekanan Transmembran Pada Nilai Permeance Dalam Proses Pemisahan Senyawa Proanthocyanidin Menggunakan Metode Dead-End Membran Ultrafiltrasi

Afandy,

Sawali,

Siswanto

2022

JTKM

View full text Add to dashboard Cite

show abstract

“…Pressure-driven membrane processes are an internationally recognized essential element of sustainable water management due to intrinsic advantages compared to conventional processes and due to their versatility e.g., for water treatment, purification and reuse. Ultrafiltration (UF) and microfiltration (MF) are increasingly used in the treatment of municipal and industrial wastewater because of its ability to produce water of constant quality, virtually independent of the feed water quality [9]. In general, UF and MF can be used to remove algae, bacteria and viruses (only UF), among other particulate matters, very efficiently [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Carbon Agglomerate Formation on Micropollutants Removal in Combined PAC-Membrane Filtration Processes for Advanced Wastewater Treatment

Hoffmann

Rathinam

Martschin

et al. 2021

Water

View full text Add to dashboard Cite

Micropollutants (MPs) are ubiquitous in wastewater and are not effectively removed by the existing conventional treatment processes, resulting in increased environmental pollution. Nowadays, dosing of powdered activated carbon (PAC) prior to membrane filtration has emerged as an advanced wastewater treatment method for MPs removal. This study investigated the carbon agglomerate formation in the PAC stock suspension and its influence on MPs removal in PAC-capillary membrane filtration processes at both lab- and pilot-scale levels. Both lab- and pilot-scale membrane filtration results revealed that MPs removal efficiency is affected with the increase of PAC concentration in the stock suspension. For example, one of the investigated pilot tests showed a significantly reduced removal of good adsorbable MPs (from 57 to 17%) when stock suspension concentration was increased from 0.2 to 20 g/L. It is assumed that PAC agglomerates led to a slower adsorption kinetic and an inhomogeneous distribution of PAC in the membrane system. Maintaining PAC concentration in the stock suspension as low as possible (below 0.2 g/L for investigated PAC) certainly would help to avoid agglomeration problems and enhance the overall performance of the processes.

show abstract

“…Recently, attention has also turned to experimental and computational studies [8] of COFs as thin films and membranes. The majority of membranes manufactured for research and commercial use are based on organic polymers [9][10][11], due to their low production cost, ease of preparation, and ability to be tailored for specific functions. These polymer membranes, however, cannot compete with their inorganic or metallic counterparts when it comes to resistance to high temperature and harsh chemicals.…”

Section: Introductionmentioning

confidence: 99%

Self-supporting covalent organic framework membranes synthesized through two different processes: solvothermal annealing and solvent vapor annealing

Turangan

Xu²,

Spratt³

et al. 2020

Nanotechnology

View full text Add to dashboard Cite

Rigid, freestanding covalent organic framework (COF-1) membranes have been synthesized from 1,4-benzenediboronic acid (BDBA) precursors using two different approaches: room temperature solvent-vapour annealing (SVA) and solvothermal annealing (SA). Characterization of films using Fourier-transform infrared (FTIR) spectroscopy, x-ray diffraction (XRD), and various microscopies shows that the films obtained through the two different routes vary in their retained BDBA proportion, crystal size and macroscale morphology. Gas adsorption measurements give specific surface areas of 579 ± 7 m2 g−1 and 739 ± 11 m2 g−1 respectively, suggesting that the average porosity of these films is competitive with bulk-synthesized COF-1 particles. The films have a stratified structure, with a dense, thin top layer and a thicker, sponge-like base layer. Using nanoindentation, we measured the Young’s modulus at the top surface of the SVA and SA films to be 3.64 ± 1.20 GPa and 3.33 ± 0.12 GPa respectively, with the smaller uncertainty for the SA film attributed to a more uniform morphology. These measurements provide useful experimental data pertaining to COF-1 mechanical properties, furnishing information relevant to the use of these free-standing membranes in applications such as gas filtration or storage.

show abstract

Fundamental membrane processes, science and engineering

Cited by 6 publications

References 22 publications

Pengaruh Tekanan Transmembran Pada Nilai Permeance Dalam Proses Pemisahan Senyawa Proanthocyanidin Menggunakan Metode Dead-End Membran Ultrafiltrasi

Pengaruh Tekanan Transmembran Pada Nilai Permeance Dalam Proses Pemisahan Senyawa Proanthocyanidin Menggunakan Metode Dead-End Membran Ultrafiltrasi

Influence of Carbon Agglomerate Formation on Micropollutants Removal in Combined PAC-Membrane Filtration Processes for Advanced Wastewater Treatment

Self-supporting covalent organic framework membranes synthesized through two different processes: solvothermal annealing and solvent vapor annealing

Contact Info

Product

Resources

About