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Lindeboom, R.E.F.; De Paepe, J.; Vanoppen, M.; Alonso-Fariñas, B.; Coessens, W.; Alloul, A.; Christiaens, M.E.R.; Dotremont, C.; Beckers, H.; Lamaze, B.; Demey, D.; Clauwaert, P.; Verliefde, A.R.D.; Vlaeminck, S.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A five-stage treatment train for water recovery from urine and shower water for long-term human Space missions |
Type |
A1 Journal article |
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Year |
2020 |
Publication |
Desalination |
Abbreviated Journal |
Desalination |
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Volume |
495 |
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Pages |
114634 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Long-term human Space missions will rely on regenerative life support as resupply of water, oxygen and food comes with constraints. The International Space Station (ISS) relies on an evaporation/condensation system to recover 74–85% of the water in urine, yet suffers from repetitive scaling and biofouling while employing hazardous chemicals. In this study, an alternative non-sanitary five-stage treatment train for one “astronaut” was integrated through a sophisticated monitoring and control system. This so-called Water Treatment Unit Breadboard (WTUB) successfully treated urine (1.2-L-d−1) with crystallisation, COD-removal, ammonification, nitrification and electrodialysis, before it was mixed with shower water (3.4-L-d−1). Subsequently, ceramic nanofiltration and single-pass flat-sheet RO were used. A four-months proof-of-concept period yielded: (i) chemical water quality meeting the hygienic standards of the European Space Agency, (ii) a 87-±-5% permeate recovery with an estimated theoretical primary energy requirement of 0.2-kWhp-L−1, (iii) reduced scaling potential without anti-scalant addition and (iv) and a significant biological reduction in biofouling potential resulted in stable but biofouling-limited RO permeability of 0.5 L-m−2-h−1-bar−1. Estimated mass breakeven dates and a comparison with the ISS Water Recovery System for a hypothetical Mars transit mission show that WTUB is a promising biological membrane-based alternative to heat-based systems for manned Space missions. |
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Wos |
000582172900007 |
Publication Date |
2020-09-15 |
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ISSN |
0011-9164 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
9.9 |
Times cited |
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Open Access |
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Approved |
Most recent IF: 9.9; 2020 IF: 5.527 |
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Call Number |
UA @ admin @ c:irua:171514 |
Serial |
6523 |
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Permanent link to this record |
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Author |
Muys, M.; González Cámara, S.J.; Derese, S.; Spiller, M.; Verliefde, A.; Vlaeminck, S.E. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
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Title |
Dissolution rate and growth performance reveal struvite as a sustainable nutrient source to produce a diverse set of microbial protein |
Type |
A1 Journal article |
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Year |
2023 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
866 |
Issue |
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Pages |
161172-161179 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
To provide for the globally increasing demand for proteinaceous food, microbial protein (MP) has the potential to become an alternative food or feed source. Phosphorus (P), on the other hand, is a critical raw material whose global reserves are declining. Growing MP on recovered phosphorus, for instance, struvite obtained from wastewater treatment, is a promising MP production route that could supply protein-rich products while handling P scarcity. The aim of this study was to explore struvite dissolution kinetics in different MP media and characterize MP production with struvite as sole P-source. Different operational parameters, including pH, temperature, contact surface area, and ion concentrations were tested, and struvite dissolution rates were observed between 0.32 and 4.7 g P/L/d and a solubility between 0.23 and 2.22 g P-based struvite/L. Growth rates and protein production of the microalgae Chlorella vulgaris and Limnospira sp. (previously known as Arthrospira sp.), and the purple non‑sulfur bacterium Rhodopseudomonas palustris on struvite were equal to or higher than growth on conventional potassium phosphate. For aerobic heterotrophic bacteria, two slow-growing communities showed decreased growth on struvite, while the growth was increased for a third fast-growing one. Furthermore, MP protein content on struvite was always comparable to the one obtained when grown on standard media. Together with the low content in metals and micropollutants, these results demonstrate that struvite can be directly applied as an effective nutrient source to produce fast-growing MP, without any previous dissolution step. Combining a high purity recovered product with an efficient way of producing protein results in a strong environmental win-win. |
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000922040000001 |
Publication Date |
2022-12-24 |
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0048-9697; 1879-1026 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
9.8 |
Times cited |
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OpenAccess |
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Approved |
Most recent IF: 9.8; 2023 IF: 4.9 |
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Call Number |
UA @ admin @ c:irua:192943 |
Serial |
7297 |
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Author |
Seuntjens, D.; Bundervoet, B.L.M.; Mollen, H.; De Mulder, C.; Wypkema, E.; Verliefde, A.; Nopens, I.; Colsen, J.G.M.; Vlaeminck, S.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Energy efficient treatment of A-stage effluent : pilot-scale experiences with short-cut nitrogen removal |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Water science and technology |
Abbreviated Journal |
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Volume |
73 |
Issue |
9 |
Pages |
2150-2158 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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000376285300013 |
Publication Date |
2016-02-09 |
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0273-1223; 1996-9732 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:130442 |
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7908 |
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Author |
Seuntjens, D.; Bundervoet, B.L.M.; Mollen, H.; De Mulder, C.; Wypkema, E.; Verliefde, A.; Nopens, I.; Colsen, J.G.M.; Vlaeminck, S.E. |
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Title |
Energy efficient treatment of A-stage effluent : pilot-scale experiences with short-cut nitrogen removal |
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P3 Proceeding |
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Year |
2015 |
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10 p.
T2 - IWA Nutrient Removal and Recovery 2015: |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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no |
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UA @ admin @ c:irua:151146 |
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7909 |
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Author |
Cagnetta, C.; Saerens, B.; Meerburg, F.A.; Decru, S.O.; Broeders, E.; Menkveld, W.; Vandekerckhove, T.G.L.; De Vrieze, J.; Vlaeminck, S.E.; Verliefde, A.R.D.; De Gusseme, B.; Weemaes, M.; Rabaey, K. |
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Title |
High-rate activated sludge systems combined with dissolved air flotation enable effective organics removal and recovery |
Type |
A1 Journal article |
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Year |
2019 |
Publication |
Bioresource technology |
Abbreviated Journal |
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Volume |
291 |
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Pages |
121833 |
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A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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High-rate activated sludge (HRAS) systems typically generate diluted sludge which requires further thickening prior to anaerobic digestion (AD), besides the need to add considerable coagulant and flocculant for the solids separation. As an alternative to conventional gravitational settling, a dissolved air flotation (DAF) unit was coupled to a HRAS system or a high-rate contact stabilization (HiCS) system. The HRAS-DAF system allowed up to 78% removal of the influent solids, and the HiCS-DAF 67%. Both were within the range of values typically obtained for HRAS-settler systems, albeit at a lower chemical requirement. The separated sludge had a high concentration of up to 47 g COD L−1, suppressing the need of further thickening before AD. Methanation tests showed a biogas yield of up to 68% on a COD basis. The use of a DAF separation system can thus enable direct organics removal at high sludge concentration and with low chemical needs. |
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000480326200048 |
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2019-07-17 |
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ISSN |
0960-8524 |
ISBN ![sorted by ISBN field, ascending order (up)](img/sort_asc.gif) |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:161098 |
Serial |
8036 |
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Author |
De Paepe, J.; Lindeboom, R.E.F.; Vanoppen, M.; De Paepe, K.; Demey, D.; Coessens, W.; Lamaze, B.; Verliefde, A.R.D.; Clauwaert, P.; Vlaeminck, S.E. |
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Title |
Refinery and concentration of nutrients from urine with electrodialysis enabled by upstream precipitation and nitrification |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Water research |
Abbreviated Journal |
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144 |
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76-86 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Human urine is a valuable resource for nutrient recovery, given its high levels of nitrogen, phosphorus and potassium, but the compositional complexity of urine presents a challenge for an energy-efficient concentration and refinery of nutrients. In this study, a pilot installation combining precipitation, nitrification and electrodialysis (ED), designed for one person equivalent (1.2 L-urine d(-l)), was continuously operated for similar to 7 months. First, NaOH addition yielded calcium and magnesium precipitation, preventing scaling in ED. Second, a moving bed biofilm reactor oxidized organics, preventing downstream biofouling, and yielded complete nitrification on diluted urine (20-40%, i.e. dilution factors 5 and 2.5) at an average loading rate of 215 mg N L-1 d(-1). Batch tests demonstrated the halotolerance of the nitrifying community, with nitrification rates not affected up to an electrical conductivity of 40 mS cm(-1) and gradually decreasing, yet ongoing, activity up to 96 mS cm(-1) at 18% of the maximum rate. Next-generation 16S rRNA gene amplicon sequencing revealed that switching from a synthetic influent to real urine induced a profound shift in microbial community and that the AOB community was dominated by halophilic species closely related to Nitrosomonas aestuarii and Nitrosomonas marina. Third, nitrate, phosphate and potassium in the filtered (0.1 mu m) bioreactor effluent were concentrated by factors 43, 2.6 and 4.6, respectively, with ED. Doubling the urine concentration from 20% to 40% further increased the ED recovery efficiency by similar to 10%. Batch experiments at pH 6, 7 and 8 indicated a more efficient phosphate transport to the concentrate at pH 7. The newly proposed three-stage strategy opens up opportunities for energy- and chemical-efficient nutrient recovery from urine. Precipitation and nitrification enabled the long-term continuous operation of ED on fresh urine requiring minimal maintenance, which has, to the best of our knowledge, never been achieved before. (C) 2018 Elsevier Ltd. All rights reserved. |
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000447569300008 |
Publication Date |
2018-07-07 |
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ISSN |
0043-1354; 1879-2448 |
ISBN ![sorted by ISBN field, ascending order (up)](img/sort_asc.gif) |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:152907 |
Serial |
8468 |
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Author |
Muys, M.; Derese, S.; Verliefde, A.; Vlaeminck, S.E. |
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Title |
Solubilization of struvite as a sustainable nutrient source for single cell protein production |
Type |
A2 Journal article |
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Year |
2016 |
Publication |
Communications in agricultural and applied biological sciences |
Abbreviated Journal |
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Volume |
81 |
Issue |
1 |
Pages |
179-184 |
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Keywords |
A2 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
By 2050, the world population will have considerably expanded and the life standard of many will increase, yielding a 50% higher demand in protein (FAO, 2011), and even increases of 82 and 102% for diary and meat products, respectively (Boland et al., 2013). To provide in this increasing demand we are highly dependent on our classical fertilizer to food chain which has a high environmental impact and lacks efficiency. Nutrient losses cause eutrophication and biodiversity loss and the input of resources is already beyond the boundaries of environmental sustainability (Steffen et al., 2015). Phosphate fertilizers are made from phosphate rock (apatite), of which the reserves are predicted to be depleted within 50 100 years if we continue business as usual (Cordell et al., 2009). Next to problems related to the unbalanced geopolitical distribution with dominance in China and Morocco, the decreasing quality of the remaining apatite will result in an increasing environmental impact of fertilizer production. Finally, our traditional food production model requires 30% of all ice-free land, 70% of all available freshwater and produces up to one third of the global greenhouse gas emission, of which 80 to 86% is linked to agricultural production (Vermeulen et al., 2012). To ensure food security, nutrient recovery from waste streams can provide an important strategy. In this context, struvite ( ) crystallisation may be applied to recover phosphorus, along with some nitrogen. Reusing these nutrients as agricultural fertilizer on the field will lead to considerable losses to the environment. In contrast, their use to cultivate micro-organisms, e.g. for single cell protein (SCP), offers to potential of a near perfect conversion efficiency (Moed et al., 2015). At this moment, microalgae represent the most developed type of SCP, and are a promising protein source due to their growth rate, high nutritional quality and extremely high nutrient usage efficiency (Becker, 2007). Reliable solubilisation data are essential to design a technological strategy for struvite dosage in bioreactors for SCP production. The effect on solubility and solubilisation rate of relevant physicochemical parameters was studied experimentally in aqueous solutions. Because pH and temperature greatly affect solubilisation kinetics they were set at a constant value of 7 and 20°C respectively. The effect of some parameters on struvite solubility was already studied (Bhuiyan et al., 2007; Ariyanto et al., 2014; Roncal-Herrero and Oelkers, 2011), but solubilisation rates were not yet considered and pH was not controlled at a constant value. The chemical parameters considered in this study include the concentration of different common ions ( and ), foreign ions ( and the chelating agent ethylenediaminetetraacetic acid, EDTA) present in micro-algal cultivation media as well as ionic strength (as set by NaCl). The main physical parameter included was contact surface, through variation in initial particle size and as well as in struvite dosage concentration. |
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1379-1176 |
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UA @ admin @ c:irua:151150 |
Serial |
8550 |
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Author |
Muys, M.; Derese, S.; Verliefde, A.; Vlaeminck, S.E. |
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Title |
Struvite solubilisation rates enable direct addition To single cell protein bioreactors |
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P3 Proceeding |
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2016 |
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10 p.
T2 - WEF/IWA Nutrient Removal and Recovery C |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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UA @ admin @ c:irua:151129 |
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8590 |
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Lindeboom, R.E.F.; Clauwaert, P.; Alloul, A.; Coessens, W.; Christiaens, M.; Vanoppen, M.; Rabaey, K.; Verliefde, A.R.D.; Vlaeminck, S.E. |
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Title |
Water and nutrient recovery from combined urine and grey water treatment in Space |
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P3 Proceeding |
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2015 |
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3 p.
T2 - IWA Resource Recovery Conference, 30 Aug |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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UA @ admin @ c:irua:151143 |
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8747 |
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de Paepe, J.; Lindeboom, R.E.F.; Vanoppen, M.; Alonso Farinas, B.; Coessens, W.; Abbas, A.; Christiaens, M.; Dotremont, C.; Beckers, H.; Lamaze, B.; Demey, D.; Rabaey, K.; Clauwaert, P.; Verliefde, A.R.D.; Vlaeminck, S.E. |
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Title |
Water treatment unit breadboard : ground test facility for the recycling of urine and shower water for one astronaut |
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P3 Proceeding |
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2017 |
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2 p.
T2 - 5th IWA Benelux Young Water Professional |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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UA @ admin @ c:irua:151114 |
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8749 |
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