WO2018038393A1 - Appareil de traitement des eaux utilisant de la magnétite et procédé de traitement des eaux l'utilisant - Google Patents

Appareil de traitement des eaux utilisant de la magnétite et procédé de traitement des eaux l'utilisant Download PDF

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Publication number
WO2018038393A1
WO2018038393A1 PCT/KR2017/007591 KR2017007591W WO2018038393A1 WO 2018038393 A1 WO2018038393 A1 WO 2018038393A1 KR 2017007591 W KR2017007591 W KR 2017007591W WO 2018038393 A1 WO2018038393 A1 WO 2018038393A1
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WO
WIPO (PCT)
Prior art keywords
water
phosphorus
tank
magnetic force
washing
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PCT/KR2017/007591
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English (en)
Korean (ko)
Inventor
김윤중
남해욱
최영균
Original Assignee
주식회사 포스코건설
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Publication of WO2018038393A1 publication Critical patent/WO2018038393A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/16—Upward filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4807—Handling the filter cake for purposes other than regenerating
    • B01D24/4815—Handling the filter cake for purposes other than regenerating for washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters

Definitions

  • the present invention relates to a water treatment apparatus, and more particularly, to a water treatment apparatus using magnetite (Fe 3 O 4 ) and a water treatment method using the same.
  • Phosphorus is the main cause of eutrophication. When phosphorus is excessively introduced into lakes, rivers or seas, microorganisms multiply, resulting in the rapid depletion of dissolved oxygen, which kills aquatic organisms and destroys ecosystems.
  • Conventional water treatment apparatuses use a method of removing contaminated water containing phosphorus by biological and physicochemical methods to remove such phosphorus.
  • zeolite may be used instead of alumina sulfate (Al 2 (SO 4 ) 3 ) to improve the phosphorus removing effect
  • zeolite has a problem in that the amount of chemical consumption is high in increasing alkalinity.
  • the present invention was derived to solve the above problems, and to provide a water treatment apparatus for quickly removing the phosphorus of contaminated water through a filtration tank using a magnetite (Fe 3 O 4 ).
  • the water treatment apparatus of the present invention can remove the phosphorus in the contaminated water without adding a separate chemical, and can also reduce the operating cost of the water treatment by using a semi-permanent magnetite (Fe 3 O 4 ) as a phosphorus adsorbent.
  • a semi-permanent magnetite Fe 3 O 4
  • the water treatment apparatus of the present invention does not generate by-products such as sludge in the phosphorus removal step.
  • the present invention has been derived to solve the above problems, the water treatment device of the present invention to remove the phosphorus contained in the contaminated water, the filter part filled with the magnetite (Fe 3 O 4 ) powder which is a by-product of the steel rolling process
  • An upward filtration tank 110 having a 111;
  • a first flow passage (P1) for transferring the contaminated water to the filtration tank 110;
  • the branch pipe line 150 includes a coupling part 151 coupled to the filtration tank 110;
  • An inlet 155 coupled to the branch 153 of the outlet 154; and the magnetite (Fe 3 O 4 ) powder separated from the filtration unit 111
  • a first adsorption device 160 formed on the coupling part 151 to recover the magnetic force;
  • a first suction part (A) formed on the inner side of the coupling part 151 by the magnetic force of the first suction device 160;
  • a second flow path (P2) coupled to the outlet portion 154 to discharge the contaminated water;
  • a third flow path (P3) coupled to the inlet 155 to allow the washing water to flow therein;
  • a washing tank 120 connected to the third flow path P3;
  • a fourth flow passage (P4) connected to the filtration tank 110 to discharge the washing water;
  • a phosphorus discharge tank 130 connected to the fourth flow path P4.
  • the first adsorption device 160 includes a first fixing part 161 coupled to the coupling part 151 in a structure surrounding the outer side of the coupling part 151; A pair of first connectors 163, one side of which is coupled to the first fixing part 161 by a hinge structure and the other side of which rotates outward with respect to the first hinge part 162; It is preferable to include; a first magnetic force portion 164 is coupled to the other side of the pair of the first connection portion 163 and formed in a structure surrounding the coupling portion 151.
  • the inner surface of the first magnetic portion 164 is in close contact with the outer surface of the coupling portion 151 in a structure corresponding to the outer surface of the coupling portion 151, the first magnetic portion 164 is the contaminated water It is preferable to generate magnetic force while being discharged through the second flow path P2 to adsorb the magnetite (Fe 3 O 4 ) powder included in the contaminated water to the first adsorption portion (A).
  • the first adsorption device 160 loses magnetic force while the washing water is introduced through the inlet 155 so that the magnetite (Fe 3 O 4 ) adsorbed to the first adsorption unit A is filtered. It is preferable to re-introduce into 110.
  • the washing water is preferably sodium hydroxide (NaOH) solution.
  • the magnetite (Fe 3 O 4 ) powder is preferably installed in a size of less than 300 ⁇ m.
  • the second storage device 170 for recovering the magnetite (Fe 3 O 4 ) powder passing through the first adsorption portion A is formed outside the bent portion 152.
  • the second adsorption device 170 includes a second fixing part 171 coupled to the outlet part 154 adjacent to the bent part 152 in a structure surrounding the outlet part 154; A second connection part 173 having one side coupled to a hinge structure on an upper side of the second fixing part 171, and the other side rotatingly driven upward based on the second hinge part 172; It is preferable to include; a second magnetic force portion 174 coupled to the other side of the second connection portion 173 and formed to surround the upper portion of the outlet portion 154.
  • the phosphorus discharge tank 130 is preferably interconnected by the phosphorus storage tank 140 and the sixth flow path (P6) for adjusting the concentration of the phosphorus.
  • the phosphorus discharge tank 130 is interconnected by the washing tank 120 and the fifth flow path (P5), and to transfer the washing water of the phosphorus discharge tank 130 to the washing water tank 120 to reuse the washing water. desirable.
  • Water treatment method using a water treatment device includes a contaminated water transfer step of transferring the contaminated water to the filtration tank 110; A filtration step of removing the phosphorus contained in the contaminated water from the filtration unit 111; A first adsorption part magnetic force forming step of forming a magnetic force on the first adsorption part A; A contaminated water discharge step of blocking the inlet part 155 and opening the outlet part 154 to discharge the contaminated water; A first adsorption part magnetic force removing step of removing a magnetic force to the first adsorption part A; A washing step of opening the inlet 155 and blocking the outlet 154 to deliver the washing water to the filtration tank; After washing the filtration unit 111, the washing water transport step for sending the washing water containing the phosphorus to the phosphorus discharge tank 130; includes.
  • Water treatment method using a water treatment device includes a contaminated water transfer step of transferring the contaminated water to the filtration tank 110; A filtration step of removing the phosphorus contained in the contaminated water from the filtration unit 111; Magnetic force forming step of forming a magnetic force on the first and second adsorption portion (A) and (B); A contaminated water discharge step of blocking the inlet part 155 and opening the outlet part 154 to discharge the contaminated water; Magnetic force removal step of removing the magnetic force of the first and second adsorption portion (A) and (B); A washing step of opening the inlet 155 and blocking the outlet 154 to deliver the washing water to the filtration tank; After washing the filtration unit 111, the washing water transport step for sending the washing water containing the phosphorus to the phosphorus discharge tank 130; includes.
  • Water treatment method using a water treatment device includes a contaminated water transfer step of transferring the contaminated water to the filtration tank 110; A filtration step of removing the phosphorus contained in the contaminated water from the filtration unit 111; A first adsorption part magnetic force forming step of forming a magnetic force on the first adsorption part A; A contaminated water discharge step of blocking the inlet part 155 and opening the outlet part 154 to discharge the contaminated water; A first adsorption part magnetic force removing step of removing a magnetic force to the first adsorption part A; A washing step of opening the inlet 155 and blocking the outlet 154 to deliver the washing water to the filtration tank; After washing the filtration unit 111, the washing water transport step of sending the washing water containing the phosphorus to the phosphorus discharge tank 130; In order to use the washing water as an agricultural fertilizer, the phosphorus concentration step of sending the washing water of the phosphorus discharge tank 130 to the phosphorus storage tank 140, and further supply
  • the initial construction cost can be minimized because the water treatment apparatus can be operated using the existing general water purification facility.
  • the water treatment process can be adjusted according to the turbidity of the mixed water or brackish water mixed with surface water and seawater and the concentration of TDS (Total Dissolved Solid, Total Dissolved Solids), reasonable and economical water treatment is possible. .
  • the mixed water or brackish water mixed with the seawater since the mixed water or brackish water mixed with the seawater is used, it is an effective water treatment method in coastal areas with insufficient water.
  • FIG. 1 is a block diagram of a combination of magnetite and phosphorus of the present invention.
  • Figure 2 is a side view of the water treatment device according to an embodiment of the present invention.
  • Figure 3 is a branch pipe coupling diagram according to an embodiment of the present invention.
  • Figure 4 is a second adsorption device coupling diagram according to an embodiment of the present invention.
  • FIG. 5 is a magnetic force forming and magnetic force removal process of the first adsorption apparatus according to an embodiment of the present invention.
  • Figure 6 is a side view of the first adsorption device according to an embodiment of the present invention.
  • A first adsorption part B: second adsorption part
  • washing water tank 130 phosphorus discharge tank
  • inlet 160 first adsorption device
  • first connection portion 164 first magnetic portion
  • first and second used below are merely identification symbols for distinguishing the same or corresponding components, and the same or corresponding components are limited by terms such as the first and second components. no.
  • the coupling does not only mean the case where the physical contact is directly between the components in the contact relationship between the components, other components are interposed between the components, the components in the other components Use it as a comprehensive concept until each contact.
  • the present invention has been derived to solve the above problems, the water treatment device of the present invention to remove the phosphorus contained in the contaminated water, the filter part filled with the magnetite (Fe 3 O 4 ) powder which is a by-product of the steel rolling process
  • a first flow path P1 transferring contaminated water to the filtration tank 110;
  • the washing water for washing the phosphorus adsorbed on the surface of the magnetite (Fe 3 O 4 ) having a magnetic force flows downward into the filtration tank 110, to the filtration tank 110 to discharge the contaminated water passing through the filtration unit 111.
  • branch pipe line 150 It comprises a; branch pipe line 150; includes, the branch pipe line 150 is a coupling portion 151 is coupled to the filtration tank 110; An outlet portion 154 coupled to the coupling portion 151 by the bent portion 152; An inlet 155 coupled to the branch 153 of the outlet 154 and recovering the magnetite (Fe 3 O 4 ) powder contained in the contaminated water separated from the filtration unit 111 by magnetic force.
  • the branch pipe line 150 includes, the branch pipe line 150 is a coupling portion 151 is coupled to the filtration tank 110; An outlet portion 154 coupled to the coupling portion 151 by the bent portion 152; An inlet 155 coupled to the branch 153 of the outlet 154 and recovering the magnetite (Fe 3 O 4 ) powder contained in the contaminated water separated from the filtration unit 111 by magnetic force.
  • magnetite Fe 3 O 4
  • the water treatment apparatus of the present invention uses magnetite (Fe 3 O 4 ), which is excellent in adsorption of phosphorus or heavy metal, from iron oxides (Fe 2 O 3 , Fe 3 O 4 , FeO), which are by-products generated in the steel making process, as an adsorbent. By-products can be recycled.
  • magnetite has a strong magnetic force, and mono-dentate and bi-dentate with phosphate ions are formed on the surface of the particles, so that the phosphorous adsorption performance is excellent (see FIG. 1), so that phosphorus in contaminated water can be effectively removed.
  • the water treatment apparatus of the present invention removes the phosphorus of the contaminated water only by passing the contaminated water flowing upward into the filtration unit 111 filled with the powder of magnetite, so that the phosphorus of the contaminated water is earlier than the water treatment time of the conventional phosphorus removal method. It can eliminate the need for a large water treatment plant, and can reduce the manufacturing cost of the water treatment plant.
  • the water treatment apparatus of the present invention is excellent in environmental friendliness since sludge does not occur after the water treatment and no environmentally harmful by-products are generated.
  • a feature of the water treatment device of the present invention is that some magnetite powder separated from the filtration part 11 is adsorbed in the first adsorption device so as not to flow out through the outlet part.
  • Magnetite powder having a strong magnetic force adheres to the first adsorption portion having magnetic force, thereby preventing the loss of magnetite.
  • the first suction part may be formed of a solenoid valve structure or may be formed of a structure that can be opened and closed manually.
  • the first adsorption device 160 includes: a first fixing part 161 coupled to the coupling part 151 in a structure surrounding the outer side of the coupling part 151; A pair of first connectors 163, one side of which is coupled to the first fixing part 161 by a hinge structure, and the other side of which rotates outward with respect to the first hinge part 162; It is preferable to include; a first magnetic force portion 164 coupled to the other side of the pair of first connection portion 163 and formed in a structure surrounding the coupling portion 151.
  • the inner surface of the first magnetic force portion 164 is in close contact with the outer surface of the coupling portion 151 in a structure corresponding to the outer surface of the coupling portion 151, the first magnetic portion 164 is contaminated water second flow path (P2) It is preferable to generate a magnetic force while being discharged through to adsorb the magnetite (Fe 3 O 4 ) powder contained in the contaminated water to the first adsorption portion (A).
  • the first magnetic force unit 164 may be automatically or manually detached from the outer surface of the coupling unit 151 by the first hinge fixing unit 162.
  • the first magnetic force unit 164 that is automatically or manually detached forms a strong magnetic force on the first adsorption unit A because the first magnetic force unit 164 is closely coupled to the outer surface of the coupling unit 151 in a structure corresponding to the outer surface of the coupling unit 151. can do.
  • the first adsorption device 160 loses magnetic force while the washing water is introduced through the inlet 155 so that the magnetite (Fe 3 O 4 ) adsorbed to the first adsorption unit A is re-introduced into the filtration tank 110. It is preferred to be introduced.
  • the magnetite (Fe 3 O 4 ) powder adsorbed on the first adsorption unit A is blocked by the outflow of the contaminated water, and then returned to the filtration tank 110 by the washing water introduced downward through the inlet 155. Is committed.
  • the washing water is preferably sodium hydroxide (NaOH) solution.
  • magnetite Fe 3 O 4
  • phosphorus desorption is facilitated by OH ⁇ .
  • Magnetite (Fe 3 O 4 ) powder is preferably installed in a size of 300 ⁇ m or less.
  • the magnetite (Fe 3 O 4 ) powder is formed to a size of 300 ⁇ m or less to effectively adsorb the phosphorus contained in the contaminated water.
  • a second storage device 170 is formed outside the bent portion 152 to recover the magnetite (Fe 3 O 4 ) powder that has passed through the first adsorption portion (A).
  • the second adsorption device 170 may include: a second fixing part 171 coupled to the outlet part 154 adjacent to the bent part 152 in a structure surrounding the outlet part 154; A second connection part 173 having one side coupled to a hinge structure at an upper side of the second fixing part 171, and the other side rotatingly driven upward based on the second hinge part 172; It is preferable to include a second magnetic force portion (174) formed in a structure coupled to the other side of the second connection portion 173 to surround the upper portion of the outlet portion (154).
  • the phosphorus discharge tank 130 is preferably interconnected by the phosphorus storage tank 140 and the sixth flow path (P6) for adjusting the phosphorus concentration.
  • Phosphorus discharge tank 130 is interconnected by the washing water tank 120 and the fifth flow path (P5), it is preferable to transfer the washing water of the phosphorus discharge tank 130 to the washing water tank 120 to reuse the washing water.
  • the washing water of the washing tank 120 is reused until a constant concentration.
  • Water treatment method using a water treatment device is a contaminated water transfer step of transporting the contaminated water upward to the filtration tank 110; A filtration step of removing phosphorus contained in the contaminated water from the filtration unit 111; A first adsorption part magnetic force forming step of forming a magnetic force in the first adsorption part A; A contaminated water discharge step of blocking the inlet 155 and opening the outlet 154 to discharge the contaminated water; A first adsorption part magnetic force removing step of removing a magnetic force to the first adsorption part A; An inlet 155 is opened and an outlet 154 is blocked so that the washing water is delivered to the filtration tank; After washing the filtration unit 111, the washing water transport step of sending the washing water containing phosphorus to the discharge tank 130; includes.
  • a magnetic force is formed in the first adsorption part to prevent the magnetite (Fe 3 O 4 ) powder from escaping to the outlet part.
  • the magnetite (Fe 3 O 4 ) powder which was opened and attached to the first adsorption part by washing water, is re-injected into the filtration tank 110.
  • Water treatment method using a water treatment device includes a contaminated water transfer step of transferring the contaminated water to the filtration tank 110; A filtration step of removing phosphorus contained in the contaminated water from the filtration unit 111; Magnetic force forming step of forming a magnetic force on the first and second adsorption portion (A) and (B); A contaminated water discharge step of blocking the inlet 155 and opening the outlet 154 to discharge the contaminated water; Magnetic force removal step of removing the magnetic force of the first and second adsorption portion (A) and (B); An inlet 155 is opened and an outlet 154 is blocked so that the washing water is delivered to the filtration tank; After washing the filtration unit 111, the washing water transport step of sending the washing water containing phosphorus to the discharge tank 130; includes.
  • magnetic force may be formed in the first and second adsorption portions A and B to prevent the magnetite (Fe 3 O 4 ) powder from escaping to the outlet portion more effectively.
  • Water treatment method using a water treatment device includes a contaminated water transfer step of transferring the contaminated water to the filtration tank 110; A filtration step of removing phosphorus contained in the contaminated water from the filtration unit 111; A first adsorption part magnetic force forming step of forming a magnetic force in the first adsorption part A; A contaminated water discharge step of blocking the inlet 155 and opening the outlet 154 to discharge the contaminated water; A first adsorption part magnetic force removing step of removing a magnetic force to the first adsorption part A; An inlet 155 is opened and an outlet 154 is blocked so that the washing water is delivered to the filtration tank; After washing the filtration unit 111, the washing and transporting step of sending the washing water containing phosphorus to the phosphorus discharge tank 130; In order to use the washing water as an agricultural fertilizer, the washing water of the phosphorus discharge tank 130 is sent to the phosphorus storage tank 140, the phosphorus concentration step of supplying additional phosphorus
  • the washed water reused a number of times is transferred to the phosphorus storage tank 140 to be improved as a fertilizer.
  • the wash water in the phosphorus storage tank 140 is improved by adding additional phosphorus as agricultural fertilizer and then flows out.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne un appareil de traitement des eaux qui a été conçu pour résoudre le problème mentionné ci-dessus, l'appareil de traitement des eaux selon l'invention comprenant : un réservoir de filtration de bas en haut (110) qui, afin d'éliminer le phosphore contenu dans de l'eau polluée, est équipé d'une unité de filtration (111) remplie de magnétite (Fe3O4) sous forme de poudre qui est un sous-produit d'un procédé de laminage d'acier; un premier trajet d'écoulement (P1) qui transfère l'eau polluée vers le réservoir de filtration (110); un trajet de tuyau de ramification (150) qui introduit vers le bas, dans le réservoir de filtration (110), de l'eau de lavage pour laver le phosphore adsorbé sur la surface de la magnétite (Fe3O4) ayant une force magnétique, et qui est couplé au réservoir de filtration (110) afin d'évacuer l'eau polluée qui a traversé l'unité de filtration (111), le trajet de tuyau de ramification (150) comprenant une partie de couplage (151) se couplant avec le réservoir de filtration (110), une partie de sortie (154) couplée à la partie de couplage (151) par l'intermédiaire d'une section courbée (152), et une partie d'entrée (155) couplée à une section de ramification (153) de la partie de sortie (154); un premier dispositif d'adsorption (160) qui est fourni au niveau de la partie de couplage (151) afin de récupérer, en utilisant la force magnétique, la magnétite (Fe3O4) sous forme de poudre qui est contenue dans l'eau polluée suite à sa séparation de l'unité de filtration (111); une première unité d'adsorption (A) qui est formée sur une surface interne de la partie de couplage (151) au moyen de la force magnétique du premier dispositif d'adsorption (160); un deuxième trajet d'écoulement (P2) qui est couplé à la partie de sortie (154) afin d'évacuer l'eau polluée; un troisième trajet d'écoulement (P3) qui est couplé à la partie d'entrée (155) de sorte à permettre l'introduction de l'eau de lavage; un réservoir d'eau de lavage (120) qui est connecté au troisième trajet d'écoulement (P3); un quatrième trajet d'écoulement (P4) qui est connecté au réservoir de filtration (110) de sorte à évacuer l'eau de lavage; et un réservoir d'évacuation de phosphore (130) qui est connecté au quatrième trajet d'écoulement (P4). Dans ce cas, l'appareil de traitement des eaux selon la présente invention utilise, parmi les oxydes de fer (Fe2O3, Fe3O4, FeO) qui sont des sous-produits générés dans l'élaboration de l'acier, de la magnétite (Fe3O4) présentant une excellente capacité d'adsorption de phosphore ou de métaux lourds en tant qu'adsorbant, ce qui fait en sorte que les sous-produits peuvent être recyclés. En particulier, la magnétite présente une force magnétique élevée, et a une excellente capacité d'adsorption du phosphore en ayant un monodentate et un bidentate formés avec un ion phosphate sur sa surface de particule (voir figure 1), et peut ainsi éliminer efficacement le phosphore de l'eau polluée.
PCT/KR2017/007591 2016-08-23 2017-07-14 Appareil de traitement des eaux utilisant de la magnétite et procédé de traitement des eaux l'utilisant WO2018038393A1 (fr)

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KR10-2016-0106666 2016-08-23
KR1020160106666A KR101746134B1 (ko) 2016-08-23 2016-08-23 마그네타이트를 이용한 수처리장치 및 이를 이용한 수처리방법

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CN109603261B (zh) * 2019-01-28 2021-09-03 辽宁工程技术大学 一种悬浊液浓缩装置及其使用方法

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CN111298749B (zh) * 2020-03-19 2022-02-22 中国热带农业科学院湛江实验站 一种甘蔗渣纤维素和木素离心分离同步处理筛选设备

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