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Publications (4 of 4) Show all publications
Noor, I.-e., Coenen, J., Martin, A. R. & Dahl, O. (2020). Performance assessment of chemical mechanical planarization wastewater treatment in nano-electronics industries using membrane distillation. Separation and Purification Technology, 235, Article ID 116201.
Open this publication in new window or tab >>Performance assessment of chemical mechanical planarization wastewater treatment in nano-electronics industries using membrane distillation
2020 (English)In: Separation and Purification Technology, ISSN 1383-5866, E-ISSN 1873-3794, Vol. 235, article id 116201Article in journal (Refereed) Published
Abstract [en]

Wastewater from chemical mechanical planarization (CMP) processes in nano-electronics industries must be treated properly in order to fulfil local and international environmental regulations. This study is focused on a performance assessment of membrane distillation (MD) technology for CMP wastewater treatment. A new prototype of air gap membrane distillation (AGMD) module was utilized, with feed water consisting of CMP wastewater collected from imec, Belgium. The module was tested at different operating conditions (temperatures, flow rates and filtration time) and responses in terms of separation efficiency, permeate water quality, transmembrane flux, specific heat demand and exergy efficiency were determined. High quality permeate was produced in all trials, i.e. conductivity ~2.11 µS/cm, pH ~5.4, TOC ~1.13 ppm, IC ~0.24 ppm, TDS ~1.18 ppm and COD ~ 1.9 ppm; for most of the contaminants the separation efficiency was >99%. These findings clearly show that the resulting MD permeate does not exceed environmental regulations for release to recipient, and the permeate can even be considered for reuse. Moreover, the determined specific heat demand at different operating conditions was varying between 1390 and 2170 kWh/m3 whereas; the achievable exergy efficiency was ~19%.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Chemical mechanical planarization, Separation efficiency, Membrane distillation, Nano-electronics, Energy analysis
National Category
Engineering and Technology
Research subject
Energy Technology; Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-264242 (URN)10.1016/j.seppur.2019.116201 (DOI)2-s2.0-85073547535 (Scopus ID)
Note

QC 20191202

Available from: 2019-11-25 Created: 2019-11-25 Last updated: 2019-12-20Bibliographically approved
Noor, I.-e., Martin, A. R. & Santarelli, M. (2019). Exergy Analysis of Air Gap Membrane Distillation Unit for Chemical Mechanical Polishing Wastewater Treatment. In: Faouzi Hidoussi (Ed.), Proceedings of the International Conference on Innovative Applied Energy: . Paper presented at International Conference on Innovative Applied Energy (IAPE’19). , Article ID 608.
Open this publication in new window or tab >>Exergy Analysis of Air Gap Membrane Distillation Unit for Chemical Mechanical Polishing Wastewater Treatment
2019 (English)In: Proceedings of the International Conference on Innovative Applied Energy / [ed] Faouzi Hidoussi, 2019, article id 608Conference paper, Published paper (Refereed)
Abstract [en]

Since Membrane Distillation (MD) is an energy-intensive separation process, therefore, it is vital to consider a realistic measure of energy evaluation for the MD system. Exergy analysis of Xzero flat-plate air gap membrane distillation (AGMD) laboratory and pilot scale units for treatment of Chemical Mechanical Polishing (CMP) wastewater from Nano-electronics manufacturing is focused in this study. Experimental work has been performed using the bench scale AGMD system considering different operating conditions and chemical concentrations for obtaining the thermodynamic and physicochemical data for the exergy calculation. Moreover, previously reported performance of a pilot scale AGMD module is employed to evaluate the system operation in the terms of thermal energy in order to execute the exergy analysis. Exergy flow rates in the AGMD system, minimum work input required, total exergy gain by the system and by CMP wastewater, system’s component share for exergy destruction and exergy efficiencies were calculated. The exergy analysis outcomes show that higher amount of exergy flow rates are associated with the hot streams in the AGMD separation process. Minimum work input required was 0.5 kW at feed temperature of 358K and flow rate of 7.2 kg/min for bench scale unit whereas for pilot scale system, 1.5 kW minimum work input was required at the same feed temperature with flow rate of 20 kg/min. The exergy efficiency varied between 12-19% for bench scale AGMD system and 18-24% for pilot scale AGMD system. Moreover, it was found out that MD modules, hot water recirculation tank and cooling water tank are needed to be optimized for better performance.

Keywords
Chemical Mechanical Polishing, Exergy Analysis, Industrial Wastewater, Membrane Distillation, Nano-electronics, Thermodynamic
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-259134 (URN)978-1-912532-05-6 (ISBN)
Conference
International Conference on Innovative Applied Energy (IAPE’19)
Note

QC 20191105

Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2019-12-20Bibliographically approved
Noor, I.-e., Coenen, J., Martin, A. R., Dahl, O. & Åslin, M. (2019). Experimental investigation and techno-economic analysis of tetramethylammonium hydroxide removal from wastewater in nano-electronics manufacturing via membrane distillation. Journal of Membrane Science, 579, 283-293
Open this publication in new window or tab >>Experimental investigation and techno-economic analysis of tetramethylammonium hydroxide removal from wastewater in nano-electronics manufacturing via membrane distillation
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2019 (English)In: Journal of Membrane Science, ISSN 0376-7388, E-ISSN 1873-3123, Vol. 579, p. 283-293Article in journal (Refereed) Published
Abstract [en]

In nano-electronics manufacturing, tetramethylammonium hydroxide (TMAH) is extensively used in the photo-lithography and etching processes, leading to a waste disposal issue. The present study focuses on TMAH wastewater treatment in nano-electronics industries by using membrane distillation technology. Actual TMAH wastewater samples were collected at imec, Belgium. An air gap membrane distillation bench unit was employed to perform the experiments for different operating conditions i.e., feed temperatures and flow rates. High quality water is recovered after reducing the TMAH concentration to 1 ppm and lowering the TOC to 0.8 ppm from 8 ppm. For the industrial scale TMAH wastewater treatment, industrial waste heat driven and district heating driven membrane distillation systems are designed and analyzed. It is determined that 14 GWh thermal energy is required annually to treat 20,000 m 3 of TMAH wastewater/year while considering 65 °C as the membrane distillation feed temperature. Expected unit water treatment cost is found as low as 16 $/m 3 of TMAH wastewater, roughly 80% lower than current disposal costs.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Membrane distillation, Techno-economic analysis, Tetramethylammonium hydroxide, Waste heat, Wastewater
National Category
Energy Engineering
Identifiers
urn:nbn:se:kth:diva-246407 (URN)10.1016/j.memsci.2019.02.067 (DOI)000461667700027 ()2-s2.0-85062439874 (Scopus ID)
Note

QC 20190401

Available from: 2019-04-01 Created: 2019-04-01 Last updated: 2019-04-09Bibliographically approved
Noor, I.-e., Martin, A. R. & Dahl, O. (2018). Membrane distillation - A new approach for treating waste water in nano-electronics industries. In: ECOS 2018 - Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems: . Paper presented at 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2018, 17 June 2018 through 21 June 2018. University of Minho
Open this publication in new window or tab >>Membrane distillation - A new approach for treating waste water in nano-electronics industries
2018 (English)In: ECOS 2018 - Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, University of Minho , 2018Conference paper, Published paper (Refereed)
Abstract [en]

In this study, a novel industrial application of membrane distillation (MD) is presented for waste water treatment in the nano-electronics industries. Previously reported performance of a semi-commercial Air Gap Membrane Distillation (AGMD) module is employed to evaluate the system operation in the terms of thermal energy analysis. To comply with thermal power demand in the MD systems, different integration possibilities between the MD unit and waste heat sources namely condenser outlet water from heat recovery chiller, process cooling water exhaust from manufacturing tools and hot air from Volatile Organic Compounds (VOCs) abatement combustion system are identified. Along with the technical assessment, this feasibility study has also involved the economic evaluation of the industrial waste heat integrated MD systems including unit water treatment cost. Results show the techno-economic viability of the proposed MD system integrated with industrial waste heat sources. 

Place, publisher, year, edition, pages
University of Minho, 2018
Keywords
Energy analysis, industrial waste heat, membrane distillation, nano-electronics, techno-economic, waste water, cooling systems, cooling water, distillation, economic analysis, energy efficiency, energy management, industrial waste treatment, industrial wastes, industrial water treatment, nanoelectronics, volatile organic compounds, waste heat, waste heat utilization, waste incineration, wastewater, wastewater treatment, air gap membrane distillation, economic evaluations, technical assessment, techno-economics, thermal energy analysis, water treatment costs, industrial economics
National Category
Energy Engineering
Identifiers
urn:nbn:se:kth:diva-252274 (URN)2-s2.0-85064165940 (Scopus ID)9789729959646 (ISBN)
Conference
31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2018, 17 June 2018 through 21 June 2018
Note

QCR 201901027

Available from: 2019-06-07 Created: 2019-06-07 Last updated: 2019-10-31Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0003-0923-9010

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