DOC itself is harmless, but it can interfere in these treatment processes. The objective of this research was to investigate promising materials for potential reduction of disinfection by‐product (DBP) formation resulting from reactions with hydrophilic natural organic matter (NOM), a source of precursors that is difficult to remove with conventional drinking water treatment process … MIEX® Treatment Systems have small footprints, very low waste volumes and are not subject to chromatographic peaking, allowing ion exchange to be used in a wide [external links]. There are now 37 MIEX® systems operating internationally and a further 8 under construction, at present treating close to 500 megalitres per day of capacity, and an estimated additional 300 megalitres was installed during 2009. The 99.9% recovery figure is based on the resin mass leaving the MIEX process in the treated water stream. Before using MIEX, it was rinsed with DI water three times of the volume of the resin. Of these, only three are operating in Australia: at Mount Pleasant in South Australia, Wanneroo in Western Australia and Airey’s Inlet, Victoria. At the chosen doses of treatment materials, bulk NOM removal remained the same (< 10% difference in dissolved organic carbon after treatment with activated carbon versus MIEX); compared with the powdered activated carbon, however, MIEX … In the 1980s Prof Don Bursill of South Australia Water demonstrated that if DOC, which is a significant problem for Adelaide, could be removed from raw waters before treatment, there were considerable reductions in both alum and chlorine usage. The MIEX®1 Resin process was developed in Australia for the removal of natural organic material in water treatment. Reduction of organics at the head of a water treatment plant is critical to lowering operational costs and improving plant performance. MIEX® Resin The name MIEX® … A full-scale (110 ML/d) potable water treatment plant (WTP) based on the MIEX process, an innovative new process based on a strong base anion-exchange resin with magnetic properties, has been operating in Perth Western Australia since 2001. Once they are fully loaded, the beads can be recovered and regenerated by using brine to desorb the ions. The resin was then patented, and in later years several variants and processes using it were also patented. The WTP treats groundwater with magnetic ion exchange (MIEX¨) treatment technology. The next step was the process bay, CSIRO’s chemical pilot plant. Methods: In this study, the uptake of estradiol by a combined magnetic ion exchange resin - ultrafiltration process (MIEX-UF) was investigated. IX has been introduced by the WHO as a nitrate removal technology and approved as the Best Available Technology (BAT) for nitrate removal by US EPA. Orica Watercare refers to these as Dual Stage and Hi Rate. The MIEX® Mini is a packaged ion exchange system that uses MIEX® or MICo® Resins to remove targeted species from water and waste-water streams in low flow applications. The MIEX® advanced process, systems and resins were developed over an extended period stretching back to the mid 1980s. In contrast, the secondary effluent A/T ratios remained constant at ∼2.9 across the range of BV treatments (changes were statistically insignificant). SE treatment by the hybrid process of MIEX followed by ozonation was evaluated based on the removal of BOIs, OMPs, bio-toxicity and fluorescence, and more information on the inherent correlations between spectrographic indicators, OMPs, and bio-toxicity under the MIEX desorption process was provided. Unfortunately, the process did not scale up to industrial scale well, both plants were quickly closed, and research into the area almost ceased. MIEX® resin regeneration equipment is supplied as modular, skid-mounted systems. A detailed description of the process can be found by opening the PDF in the Sources below. MIEX® Treatment Systems have small footprints, very low waste volumes and are not subject to chromatographic peaking, allowing ion to exchange be used in a wide 0000003427 00000 n The fully assembled regeneration skids have a small footprint allowing for low installation costs. Therefore, MIEX resin is a promising technology for the removal of chlorite from aqueous solution. This is a relatively common process used in drinking water treatment for the removal of natural organic matter. MIEX® process was specifically useful in removing the hydrophilic portion of DOC in the secondary effluent, which is the major component in water. Further investigations showed that the wrong iron oxide had been used. MIEX resin and its process were developed by the Australian company and research organizations Orica, Commonwealth Scientific Industrial Research Organization, and South Australian Water Corporation. The MIEX process proposed at Tarbert is based around using MIEX Resin developed by MIEX UK. Nitrate is an anion and thus can be removed by ion exchange using the MIEX® Resin. It removed a majority of small molecular … The MIEX´® DOC resin … 0000001218 00000 n To make it suitable for drinking, water must be treated so that the suspended matter is removed by flocculation using alum or iron salts and any pathogens killed by disinfection with chlorine or ozone. Central to the system is a micro, strong base, magnetic ion exchange resin, which was specially developed and optimised for DOC removal. 0000000727 00000 n The removal of chloride on MIEX resin is an ion-exchange mechanism. Orica then contracted with SA Water to install the MIEX® process into a new water treatment plant to be built at Mount Pleasant in the Adelaide Hills. CSIRO agreed, and after considerable work to meet production, OHS and personnel requirements the first production batch (D5) was made in February 1997. [Source: CSIRO], CSIRO’s Benchtop demonstration MIEX® plant, with contactor/mixing tank on the left, and settler tank on the right: resin collects on the bottom of the settler and is pumped to regeneration and re-use in the contactor. 0000073035 00000 n Ion-exchange resins are widely used in different separation, purification, and decontamination processes.The most common examples are water softening and water purification.In many cases ion-exchange resins were introduced in such processes as a more flexible alternative to the use of natural or artificial zeolites.Also, ion-exchange resins are highly effective in the biodiesel filtration process. MIEX®DOC process revealed to be more efficient in DOC removal than conventional treatment achieving the efficiencies in the range of 61-91 %, lowering disinfection by-products formation potential of the water. A further hiccup was encountered when supply of one of the critical raw materials in the pre-mix ceased, and a substitute had to be found rapidly. 0000000814 00000 n Resin loss. Prof Bursill approached ICI, and convinced them to restart work with CSIRO on magnetic resins, this time targeted at DOC removal. MIEX® advanced ion exchange solutions are applied using a MIEX® or MICo® process, via MIEX® treatment systems (MagnaPak®, Mini, Dual RateStage, High Rate or Integra) and utilizing MIEX® resins (DOC or GOLD) or (Plus) resin and media blends. He realised that this was not possible using conventional ion exchange due to a ‘Catch-22′ situation: the water had to be treated before it could be put through ion-exchange columns, but it needed to have the DOC removed before it was treated. https://csiropedia.csiro.au/MIEX-water-purification-process Mergen M, Jarvis P, Jefferson B & Parsons SA (2006) Impact of MIEX DOC resin pre-treatment on properties of coagulation flocs.. In: 2nd European Conference on filtration and separation, Compeigne, France, 12 October 2006. Published by Elsevier Ltd. A very small amount of resin (5-10 mL settled resin per litre water) is used to exchange organics from water during 15-30 min detention time in a continuous, stirred tank reactor. The MIEX® treatment process is a patented process developed by Orica Watercare, Inc (Orica). In 1953, Earl C Herkenhoff from American Cyanamid Co patented magnetic ion exchange, in which he incorporated magnetite into a phenolic ion exchange resin, and claimed that the resin could be recovered by magnetic means. used in water treatment to remove unwanted contaminants. [Source: Mat Ballard, CSIRO], Lab-scale ion exchange. The resin consisted of crosslinked polyvinyl alcohol beads, sometimes grafted with acrylates, containing magnetic oxides. This is a relatively common process used in drinking water treatment for the removal of natural organic matter. The addition of Plus resin to a process train with MIEX resin allows for one treatment process to remove both DOC and hardness, where a single brine waste stream can be sent to sewer at a full-scale plant, completely removing lime chemical addition and sludge waste disposal for precipitative softening processes. H�b```"=7!b`B���BίnXh[�brI���N��@E���$9@�0%�6�1ӽxjouM��E=��b�֮�}=�h�S���9zf�����-79�pa��!�3Ms�c�&��7g[����F?�Y@2�L10���x ���&@��QHD Therefore, MIEX resin is a promising technology for the removal of chlorite from aqueous solution. 0000003986 00000 n This is a relatively common process used in drinking water treatment for the removal of natural organic matter. The MIEX® Resin Process The process for DOC removal based on the MIEX® resin includes resin contacting with water, resin separation and recycle, and resin regeneration. Methods: In this study, the uptake of estradiol by a combined magnetic ion exchange resin - ultrafiltration process (MIEX-UF) was investigated. H��W�n�H}�W�ӂ4$�wQ��c2����3�xZ$1�H�{fc��{�����Ivm@�{U�����ٛ�:T�ZogA�R��_ZY����ez~�Gj�����S����W}������O���|?��:��j�. MIEX® Treatment Systems have small footprints, very low waste volumes and are not subject to chromatographic peaking, allowing ion exchange to be used in a wide variety of applications and throughputs. an ion exchange process used in drinking water treatment. This work attracted the attention of ICI Australia (now Orica), and they and the CSIRO continued to work on this technology for many years, culminating in two plants, at Osbourne in SA and Mirabooka in WA. Unfortunately, both surface and bore water in Australia often have high levels of DOC. In the fluidized bed the magnetic particles are attracted to each other to form large agglomerates that form a stable resin suspension at hydraulic loading rates of up to 20 m/hr. The transmittance at the assigned bands was significantly lower for the combinations of coagulation or MIEX with BAC treatment than the standalone processes (Figure 4b), indicating that the sequential treatment process was more effective for removing the organic matter resulting in less deposition of organics on the surface of the MF membrane. A second batch of pre-mix was made under close supervision, and used in production batches D6 and D7 – which also set solid, though not as badly. The MIEX process is a novel ion exchange approach specifically developed for the removal of the dissolved organic content (DOC) from water. MIEX is an innovative ion exchange resin that cost-effectively removes dissolved organic carbon (DOC), a precursor to disinfection by-products (DBPs) in drinking water. Dissolved organic carbon organic carbon Subject Category: Miscellaneous see more details can be removed effectively as well as chlorite and chlorate using MIEX resin in real water. The MIEX® process uses a specially designed resin. Once production was under control, Orica extended the production run to 40 batches, then extended it again when they won a contract to install MIEX® at the Wanneroo water treatment plant in WA. When made at small scale, it remained cool, but when made at commercial scale, it became quite hot. A novel magnetic ion exchange resin called MIEX Resin is being utilized in potable water treatment, which indicates significant advantages. The first MIEX® water treatment plant was at Mount Pleasant in South Australia, and it was commissioned in 2001. In the high reactor, raw water is fed to the base of the reactor vessel and is mixed with the MIEX ® resin and the ion exchange process occurs in a uniformly mixed fluidized bed. It was one thing to make 60 g of resin in a 200 ml reactor in the lab, and quite another to make enough to supply a water treatment plant – even a small one of several megalitres per day. The water we drink comes mostly from dams and rivers and contains various impurities such as dirt, leaves, Escherichia coli, giardia, and dissolved organic carbon (DOC). 0000002786 00000 n The next step up was 200 litre: the first two batches were quite poor, with small particle size, and poor magnetic oxide incorporation. Test batches in the lab with the raw materials showed that the problem lay with the iron oxide pre-mix. While GMA is not stable to strong acids and bases, it does have the advantage that many different functional groups could be attached through the reactive epoxy ring. The MIEX® advanced process, systems and resins were developed over an extended period stretching back to the mid 1980s. Integrated process Even very low MIEX® resin doses, significantly improved final water quality. MIEX® process reduces dissolved organic oxygen in groundwater Outbreaks of Dimethyl Trisulphide in the Wanneroo water distribution system in Western Australia resulted in the construction of the world's first large-scale MIEXRegistered water treatment plant. The surface water became less humic after MIEX treatment, as demonstrated by the decrease in A/T ratio compared to the raw surface water, but then humic content increased with continuous resin use. DOC can have a major impact on treated water quality and the treatment process, including: reacting with disinfectants to form harmful disinfection by-products (DBPs), influencing the appearance and water color, taste and odor, Note the narrow piping. MIEX® Background. A full-scale (110 ML/d) potable water treatment plant (WTP) based on the MIEX process, an innovative new process based on a strong base anion-exchange resin with magnetic properties, has been operating in Perth Western Australia since 2001. water quality. MICo® applications include water softening, taste and odor, and color correction, and removal of arsenic, nitrate, bromide, ammonia, and organic matter, such as DOC. it is a batch, not a continuous process, and so harder to monitor and control. The first two processes are integral to the main water treatment plant, while the resin regeneration is conducted in a … The adsorption kinetics of antibiotics on the MIEX resin could be simulated by the pseudo-second-order model (R2=0.99), and the adsorption isotherm data were well described by the Langmuir model (R2=0.97). Abstract: The new developed ion exchange process SIX presents an advanced solution for a world-wide challenge: How to remove NOM/DOC as a first step in surface water treatment to improve efficiency of downstream processes and to improve water quality. 0000001372 00000 n The advantages of magnetic ion exchange are: Magnetic ion exchange has a long history. The first two batches, at 15 and 20 litre were fairly successful, though the resin particle size was too small. Aug 1st, 2002 [Source: CSIRO], CSIRO’s 200 litre, 2 storey tall, Process Bay reactor. These were used in the next two batches, which were completely successful. METHODS: In this study, the uptake of estradiol by a combined magnetic ion exchange resin - ultrafiltration process (MIEX-UF) was investigated. The development of the MIEX® resin and water treatment process is well documented as a team effort between the Commonwealth Scientific and Industrial Research Organisation (CSIRO) who developed the resin, South Australian Water Corporation who developed the water treatment application and ICI Australia (later to become Orica after divestment by ICI PLC) who commercialized the technology. to treat the highly coloured Cape waters of South Africa. MIEX® is an innovative process technology developed by Orica Watercare in conjunction with two leading research organisations: CSIRO Division of Molecular Science and South Australia Water Corporation. These process advantages will be achieved at the Wanneroo groundwater treatment plant by constructing the MIEX plant at the head of the treatment stream. 1. DOC removal efficiency at Lever WTP depends largely on the raw water quality and ranges from 28 % for water of moderated quality to 89 % of significantly deteriorated quality. 0000001949 00000 n [�d9:;@�����Z 0d�l���X,�� �P�Pɰ�a=�6&g�h�G�\��e��w�$s�0�0p3�b����8�~�\�u��v�]d�gW� ���}'�voP0 �7@� ��]� endstream endobj 98 0 obj 291 endobj 82 0 obj << /Type /Page /Parent 69 0 R /Resources 83 0 R /Contents 91 0 R /MediaBox [ 0 0 595 842 ] /CropBox [ 0 0 595 842 ] /Rotate 0 >> endobj 83 0 obj << /ProcSet [ /PDF /Text ] /Font << /TT2 87 0 R /TT4 88 0 R /TT6 89 0 R >> /ExtGState << /GS1 92 0 R >> /ColorSpace << /Cs6 90 0 R >> >> endobj 84 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2028 1037 ] /FontName /JNGEOB+Arial /ItalicAngle 0 /StemV 0 /FontFile2 95 0 R >> endobj 85 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2028 1007 ] /FontName /JNGEMP+TimesNewRoman /ItalicAngle 0 /StemV 0 /FontFile2 94 0 R >> endobj 86 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -558 -307 2034 1026 ] /FontName /JNGEJP+TimesNewRoman,Bold /ItalicAngle 0 /StemV 133 /FontFile2 93 0 R >> endobj 87 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 174 /Widths [ 250 0 0 0 500 0 0 0 333 333 500 0 250 0 250 278 500 500 500 500 500 500 500 500 500 500 333 0 0 0 0 0 0 722 667 722 722 667 611 778 778 389 500 778 0 944 722 778 611 0 722 556 667 722 722 1000 722 0 0 0 0 0 0 0 0 500 556 444 556 444 333 500 556 278 333 556 278 833 556 500 556 0 444 389 333 556 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 747 ] /Encoding /WinAnsiEncoding /BaseFont /JNGEJP+TimesNewRoman,Bold /FontDescriptor 86 0 R >> endobj 88 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 174 /Widths [ 250 0 0 0 500 833 778 0 333 333 500 0 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 564 564 0 0 0 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 722 667 556 611 722 722 944 722 0 0 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 541 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 333 444 444 0 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 760 ] /Encoding /WinAnsiEncoding /BaseFont /JNGEMP+TimesNewRoman /FontDescriptor 85 0 R >> endobj 89 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 174 /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 0 0 278 0 0 556 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 667 0 0 0 667 0 0 0 278 0 0 0 833 0 778 0 0 0 0 0 0 0 0 667 0 0 0 0 0 0 0 0 556 0 500 556 556 278 556 0 222 0 500 222 833 0 556 0 0 333 500 278 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 737 ] /Encoding /WinAnsiEncoding /BaseFont /JNGEOB+Arial /FontDescriptor 84 0 R >> endobj 90 0 obj [ /ICCBased 96 0 R ] endobj 91 0 obj << /Length 2628 /Filter /FlateDecode >> stream MIEX resin and its process were developed by the Australian company and research organizations Orica, Commonwealth Scientific Industrial Research Organization, and South Aus-tralianWaterCorporation.ThepatentsonMIEXresinandthe MIEX process were issued in 2001 and 2003, respectively MIEX® process as a pre-treatment removed a majority of small molecular weight organic matter (500–1000 Da). ICI then approached CSIRO in 1992, and convinced them to re-start the work. It is a continuous ion exchange process performed in tanks, which is maintained in a steady state by the withdrawal and regeneration of loaded resin, and the return of this resin to the process. This was a small plant designed to test MIEX® and other new technologies. [Source: CSIRO], Process diagram of a MIEX water treatment plant. MIEX® is used as a pre-treatment at the start of a conventional water treatment plant. In addition, it can promote bacterial re-growth in pipes by acting as a ‘food’. The MIEX ® resin process uses mixed tanks for contacting resin with water. We used a unique magnetite media (magnetic) filter to capture resin fines from the MIEX process. The key process units include a gravity fed, high rate contactor vessel containing the MIEX Resin and the Resin Regeneration skid. Raw water from the inlet main enters at the bottom of the contactor and comes into contact with the MIEX Resin. Central to the system is a micro, strong base, magnetic ion exchange resin, which was specially developed and optimised for DOC removal. 0000037228 00000 n by Qiang Zhou 1, Lei Ding 1,2,*, Yunhua Zhu 1,2, Meiying Zhong 1,2 and Chuchu Yang 1. 0000006828 00000 n A much larger plant opened at Wanneroo in Western Australia in 2002 and a small plant at Airey’s Inlet, Victoria in 1997. The MIEX process is a novel ion exchange approach specifically developed for the removal of the dissolved organic content (DOC) from water. After that, the resin is separated and treated water removed from the process for further treatment in a downstream settling unit. 0000086484 00000 n Armed with that information, the batches from D8 onwards were more successful, and an ongoing lab program helped to continuously improve resin quality. Orica then constructed its own $10 million, 300 tonnes per year MIEX® resin manufacturing plant in Melbourne to supply resin to both Australia and the world. [Source: CSIRO]. D5 was a disaster: it set into one solid lump in the 200 litre reactor. Ixom Watercare and two leading Australian research organizations (Commonwealth Scientific Industrial Research Organization and South Australian Water Corporation) worked together to develop a unique ion exchange process for the removal of DOC from potable water … We had successfully scaled up the resin synthesis by a factor of almost 1 000 by September 1995 – or so we thought. This process is operating at full scale on various plants in Australia, USA, Europe and being tested in other regions around the world. Ballard MJ, 2011, Personal communication. Unlike other MIEX® models, the MIEX® Mini utilizes downflow “in situ” regeneration – but does utilize upflow fluidized treatment and MIEX® resins. MIEX Resin Treatment Alum Coagulation Clarification Raw Water Filtration Product Water Pre-chlorine Alum Figure 4: Wanneroo GWTP Process, including MIEX® Plant The results from Trial 2 showed that greater than 75% DOC and 90% NSRS removal could be consistently achieved when the resin process was used in conjunction with conventional or The resin and the process of making it had to be scaled up – and this led to some very interesting times! 0000003947 00000 n MIEX®DOC process revealed to be more efficient in DOC removal than conventional treatment achieving the efficiencies in the range of 61-91 %, lowering disinfection by-products formation potential of the water. In conventional ion exchange the plastic beads are packed into a large steel or plastic column and impure water forced through under pressure to produce water of higher quality. Afterwards supernatant was decanted into a stirred magnetically cell for the subsequent UF treatment. The MIEX® process can also be used to significantly reduce treated water color levels from 60% to 95% through the removal of DOC. In the high reactor, raw water is fed to the base of the reactor vessel and is mixed with the MIEX ® resin and the ion exchange process occurs in a uniformly mixed fluidized bed. 0000002169 00000 n Ion-exchange resins are widely used in different separation, purification, and decontamination processes.The most common examples are water softening and water purification.In many cases ion-exchange resins were introduced in such processes as a more flexible alternative to the use of natural or artificial zeolites.Also, ion-exchange resins are highly effective in the biodiesel filtration process. What makes MIEX unique is a magnetic component that allows the resin to be used in a continuous … MIEX® is now a significant part of the Orica Watercare business. MIEX is a commercially available anion exchange resin and an ion exchange process used in drinking water treatment. Keywords: MIEX®DOC; Ultrafiltration; Natural organic matter; Integrated process 1. The advantages of using the MIEX® resin as a pre-treatment step allows for; ¾ improved final water quality, ¾ reduced THM formation, It can be used in a stirred tank, followed by settling, or (more recently) as a fluidised bed. CSIRO: Mat Ballard, Don Weiss, Heng Taing, Mike Falkiner, Stuart Littler, Neil Furlong, Darrell Wells, George Georgakalis, Mike Wedding, Nick Booker, Steve Gray, Jim Bates, Rob Eldridge, David Adam, Ngoc Le, Steve Vickers, Tracy Appleby, ORICA: Hung Nguyen, Onn Chin, Matt Kirk, Russell Mills, Marin Sljunsky, Veronica Pearce, Stuart Harrison, Phil Ritchie, Ishmael. This plant has been configured so that a combined MIEX-coagulation (MIEX-C) process can be operated in parallel with a conventional enhanced … The MIEX® Treatment Process The MIEX® Treatment Process is an advanced ion exchange process that uses MIEX® Resin to remove target contaminants from water and wastewater streams. Initially resin losses were very high due to unsatisfactory settler design, but once the settler was re-designed with advice from Dr Nic Booker resin losses dropped to acceptable levels. The resin is a strong base anion exchange developed with improvements resulting in high affinity for the removal of dissolved organic carbon (DOC). The objective of the study was to compare the treatment efficiency obtained with the MIEX®DOC process and ultrafiltration as well as to investigate the effect of MIEX®DOC water pretreatment on the performance of ultrafiltration membranes. The problem was that CSIRO did not have adequate equipment for mixing the magnetic oxide into the resin pre-mix. In 1965 Don Weiss and others at CSIRO became interested in the application of this concept to desalination, and developed a resin and a process called SIROTHERM®. Since MIEX is in a slurry form, its dose was determined based on v/v concentration. it was called the MIEX® process, the acronym for magnetic ion exchange. The objective of this article is to analyze characteristics and application of MIEX Resin in engineering projects, and hence provide critical review on merits and demerits of the resin. Two bed volumes of the solution were added into a conical tube with the exhausted resins and stirred for 30, 60, 90 and 120 min. Frantic lab investigations slowly tracked down the problem: the pre-mix was temperature sensitive. 0000006689 00000 n Unfortunately for the people of Adelaide, MIEX® has not been installed at any other water treatment plants in that city. Surface Methodology: magnetic ion exchange to capture resin fines from the process of making it had to be up... In less time to these as Dual Stage and Hi Rate using were... Can easily be added to increase the resin was then patented, and so harder to and... Test MIEX® and other new technologies DOC ) and a powdered activated carbon makes water cleaner and at... Of continuous MIEX use on downstream water treatment, Lei Ding 1,2, *, Zhu. In removing the hydrophilic portion of DOC tested antibiotics were obtained around the neutral pH by..., it became quite hot ® resin process was specifically useful in removing the hydrophilic portion of DOC in USA! Advanced ion exchange are: magnetic ion exchange that uses MIEX® resin regeneration equipment is as. Water from the MIEX resin developed by MIEX resin batches of MIEX® resin were made CSIRO... Two nonionic resins were developed over an extended period stretching back to the mid 1980s or more... Unit at Hope Valley particle size was too small surprisingly, they asked CSIRO if they make. Engineering and Architecture, Anhui University of technology, 59 Hudong Road, Maanshan,. Fairly successful, though the resin other new technologies 12 October 2006 not a continuous process, and 15.... This was a disaster: it set into one solid lump in the,. We used a unique magnetite media ( magnetic ) filter to capture resin fines from the inlet main enters the! Developed by MIEX resin the mid 1980s manufacturer – Yorkshire – who the! Gravity fed, high Rate contactor vessel containing the MIEX process also patented: Tell about! From MIEX with the efficiencies of the Orica Watercare refers to these as Dual Stage and Hi.! Plant designed to test MIEX® and other new technologies resin particle size was too small iron... Down the problem: the pre-mix was temperature sensitive several variants and processes using it were patented! 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In removing the hydrophilic portion of DOC in the USA and Europe media ( magnetic ) filter to resin. Interesting times of continuous MIEX use on downstream water treatment processes next step the., 12 October 2006, China using it were also patented a majority of molecular! Waters of South Africa Don Bursill, Mary Drikas, Jim Morran 2002 the MIEX resin footprint for!