Direct Reuse - Revision history

imported>WikiAdmin at 04:57, 6 August 2015

2015-08-06T04:57:47Z

← Older revision		Revision as of 14:57, 6 August 2015
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	Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible~~[1]~~. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.		Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible<ref name="lawler-2014-H" />. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.
	Although direct reuse of used membranes without any additional treatment is obviously preferred, appropriate assessment of their current performances, further validation and potential chemical cleaning will most likely be required. Information on the used membrane performance from the plant of origin, as well as a number of additional monitoring and characterisation methods, can enable a tailored cleaning system to be developed[2]. Based on the type of feed water used and location of the RO membranes within the filtration train, standard chemical cleaning protocols could be established in order to efficiently remove most of the fouling/scaling that may have occurred during the filtration. A critical step in this reuse process is the validation of the cleaned membranes, as integrity, permeability and rejection must be demonstrated before the membranes can be successfully reused.

	~~To date~~, ~~one US-based company~~, ~~WaterSurplus, has recognised the~~ potential ~~directly reusing membranes~~. ~~The company offers a wide range~~ of ~~surplus new~~, as well as used~~, cleaned~~ and ~~repackaged,~~ RO, ~~UF and NF Membranes and associated equipment~~. ~~While a third party company managing the~~ reuse process is ~~helpful, it is not necessary for its success. The long term goal~~ of ~~this MemEOL tool is to develop a database of used~~ membranes, ~~which will help directly connect primary~~ and ~~secondary users. If you currently have membranes that you would like to provide for direct reuse, or are looking for low cost used~~ membranes~~, please contact Pierre Le-Clech (p.le-clech@unsw.edu.au) for further information~~.		Although direct reuse of used membranes without any additional treatment is obviously preferred, appropriate assessment of their current performances, further validation and potential chemical cleaning will most likely be required. Information on the used membrane performance from the plant of origin, as well as a number of additional monitoring and characterisation methods, can enable a tailored cleaning system to be developed<ref name="pontie" />. Based on the type of feed water used and location of the RO membranes within the filtration train, standard chemical cleaning protocols could be established in order to efficiently remove most of the fouling/scaling that may have occurred during the filtration. A critical step in this reuse process is the validation of the cleaned membranes, as integrity, permeability and rejection must be demonstrated before the membranes can be successfully reused.

	Based on the inputs provided, the used membranes have been categorised in the table below. Please refer to this table for information about potential applications, quality ranking and expected reuse lifespan.		To date, one US-based company, [http://www.watersurplus.com WaterSurplus], has recognised the potential directly reusing membranes. The company offers a wide range of surplus new, as well as used, cleaned and repackaged, RO, UF and NF Membranes and associated equipment. While a third party company managing the reuse process is helpful, it is not necessary for its success. The long term goal of this MemEOL tool is to develop a database of used membranes, which will help directly connect primary and secondary users. If you currently have membranes that you would like to provide for direct reuse, or are looking for low cost used membranes, please contact Pierre Le-Clech ([mailto:p.le-clech@unsw.edu.au p.le-clech@unsw.edu.au]) for further information.
	</div>
			Based on the inputs provided, the used membranes have been categorised in the table below. Please refer to this table for information about potential applications, quality ranking and expected reuse lifespan.</div>
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	<div class="recommendation reuse_as_ro" style="">		<div class="recommendation reuse_as_ro" style="">

imported>WikiAdmin at 04:52, 6 August 2015

2015-08-06T04:52:14Z

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	</body></html>		</body></html>
	<div class="recommendation reuse_as_ro" style="~~display: none;~~">		<div class="recommendation reuse_as_ro" style="">
	Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.		Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.
	Although direct reuse of used membranes without any additional treatment is obviously preferred, appropriate assessment of their current performances, further validation and potential chemical cleaning will most likely be required. Information on the used membrane performance from the plant of origin, as well as a number of additional monitoring and characterisation methods, can enable a tailored cleaning system to be developed[2]. Based on the type of feed water used and location of the RO membranes within the filtration train, standard chemical cleaning protocols could be established in order to efficiently remove most of the fouling/scaling that may have occurred during the filtration. A critical step in this reuse process is the validation of the cleaned membranes, as integrity, permeability and rejection must be demonstrated before the membranes can be successfully reused.		Although direct reuse of used membranes without any additional treatment is obviously preferred, appropriate assessment of their current performances, further validation and potential chemical cleaning will most likely be required. Information on the used membrane performance from the plant of origin, as well as a number of additional monitoring and characterisation methods, can enable a tailored cleaning system to be developed[2]. Based on the type of feed water used and location of the RO membranes within the filtration train, standard chemical cleaning protocols could be established in order to efficiently remove most of the fouling/scaling that may have occurred during the filtration. A critical step in this reuse process is the validation of the cleaned membranes, as integrity, permeability and rejection must be demonstrated before the membranes can be successfully reused.
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	===References===		===References===
	<references>		<references>

imported>WikiAdmin at 04:50, 6 August 2015

2015-08-06T04:50:15Z

← Older revision		Revision as of 14:50, 6 August 2015
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	<div class="recommendation reuse_as_ro" style="display: none;">		<div class="recommendation reuse_as_ro" style="display: none;">
	Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.		Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.

imported>WikiAdmin at 04:47, 6 August 2015

2015-08-06T04:47:52Z

← Older revision		Revision as of 14:47, 6 August 2015
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	</div>		</div>
			</html></body>
	<div class="recommendation reuse_as_ro" style="display: none;">		<div class="recommendation reuse_as_ro" style="display: none;">
	Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.		Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.

imported>WikiAdmin at 04:46, 6 August 2015

2015-08-06T04:46:53Z

← Older revision		Revision as of 14:46, 6 August 2015
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	reuse		<div class="recommendation reuse_as_ro" style="display: none;">
			<table class="table table-bordered table-striped table-responsive">
			<tbody><tr>
			<td>Compatible with plastic components</td>
			<td>Yes</td>
			</tr><tr>
			<td>Compatible with fibreglass components</td>
			<td>Yes</td>
			</tr><tr>
			<td>Available in Australia</td>
			<td>Yes</td>
			</tr><tr>
			<td>Available globally</td>
			<td>Yes</td>
			</tr><tr>
			<td>Manual disassembly required</td>
			<td>No</td>
			</tr></tbody>
			</table>
			</div>
			<div class="recommendation reuse_as_ro" style="display: none;">
			Direct membrane reuse is one of the most favourable end-of-life options across all categories, and is recommended for all situations where it is possible[1]. Direct membrane reuse involves taking membranes that have been deemed unsuitable for their primary application from one plant and transporting them to a secondary plant, potentially for use in harsh conditions were high replacement rates makes low cost second hand modules economically attractive.
			Although direct reuse of used membranes without any additional treatment is obviously preferred, appropriate assessment of their current performances, further validation and potential chemical cleaning will most likely be required. Information on the used membrane performance from the plant of origin, as well as a number of additional monitoring and characterisation methods, can enable a tailored cleaning system to be developed[2]. Based on the type of feed water used and location of the RO membranes within the filtration train, standard chemical cleaning protocols could be established in order to efficiently remove most of the fouling/scaling that may have occurred during the filtration. A critical step in this reuse process is the validation of the cleaned membranes, as integrity, permeability and rejection must be demonstrated before the membranes can be successfully reused.

			To date, one US-based company, WaterSurplus, has recognised the potential directly reusing membranes. The company offers a wide range of surplus new, as well as used, cleaned and repackaged, RO, UF and NF Membranes and associated equipment. While a third party company managing the reuse process is helpful, it is not necessary for its success. The long term goal of this MemEOL tool is to develop a database of used membranes, which will help directly connect primary and secondary users. If you currently have membranes that you would like to provide for direct reuse, or are looking for low cost used membranes, please contact Pierre Le-Clech (p.le-clech@unsw.edu.au) for further information.

			Based on the inputs provided, the used membranes have been categorised in the table below. Please refer to this table for information about potential applications, quality ranking and expected reuse lifespan.
			</div>
			<html><head></head><body>
			<div class="recommendation reuse_as_ro" style="display: none;">
			<table class="table table-bordered table-hover table-responsive">
			<thead>
			<tr class="">
			<th>NaCl rejection range (%)</th>
			<th>Permeability range (L.m⁻².h⁻¹.bar⁻¹)</th>
			<th>Designation</th>
			<th>Action</th>
			<th>Estimated reuse lifespan (yrs)</th>
			</tr></thead>
			<tbody><tr class="tablerow-reuse tablerow-reuse-0">
			<td>99.9 - 99.6</td>
			<td>> 0.45</td>
			<td>High quality SWRO</td>
			<td>Direct reuse as SWRO possible in normal applications</td>
			<td>2 –5</td></tr><tr class="tablerow-reuse tablerow-reuse-1">
			<td>99.7 - 99.2</td>
			<td>> 1.6</td>
			<td>High quality BWRO</td>
			<td>Direct reuse as BWRO possible in normal applications</td>
			<td>2 – 3</td></tr><tr class="tablerow-reuse tablerow-reuse-2">
			<td>99.2 – 98</td>
			<td>> 1.6</td>
			<td>Medium quality BWRO</td>
			<td>Direct reuse as BWRO in standard applications possible</td>
			<td>1 – 2</td></tr><tr class="tablerow-reuse tablerow-reuse-3">
			<td>98 – 96</td>
			<td>> 1</td>
			<td>Low quality BWRO</td>
			<td>Direct reuse as BWRO in harsh applications where regular replacement is required</td>
			<td>1</td></tr><tr class="tablerow-reuse tablerow-reuse-4">
			<td>96 – 80</td>
			<td>> 5</td>
			<td>Medium quality NF</td>
			<td>Direct reuse as NF membrane possible</td>
			<td>-</td></tr><tr class="tablerow-reuse tablerow-reuse-5">
			<td>< 96</td>
			<td>< 5</td>
			<td>Unsuitable for RO or NF</td>
			<td>Membrane suitable for UF conversion.</td>
			<td>-</td></tr></tbody>
			</table>
			</div>
			</body></html>
			<div class="recommendation reuse_as_ro" style="display: none;">
			</body></html>
			===References===
			<references>
			<ref name="lawler-2014-H">Lawler, W.; Alvarez-Gaitan, J.; Leslie, G.; Le-Clech, P. "Assessment of End-of-Life Opportunities for Reverse Osmosis Membranes." The University of New South Wales (2015).</ref>
			<ref name="pontie">Pontié, M.; Rapenne, S.; Thekkedath, A.; Duchesne, J.; Jacquemet, V.; Leparc, J. Desalination (2005), 181, 75-90</ref>
			</references>
			</div>

imported>WikiAdmin: Created page with "reuse"

2015-06-19T12:10:35Z

Created page with "reuse"

New page

reuse