WO2018038394A1 - 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
WO2018038394A1
WO2018038394A1 PCT/KR2017/007592 KR2017007592W WO2018038394A1 WO 2018038394 A1 WO2018038394 A1 WO 2018038394A1 KR 2017007592 W KR2017007592 W KR 2017007592W WO 2018038394 A1 WO2018038394 A1 WO 2018038394A1
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WO
WIPO (PCT)
Prior art keywords
magnetite
tank
washing
water
water treatment
Prior art date
Application number
PCT/KR2017/007592
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English (en)
Korean (ko)
Inventor
김윤중
남해욱
최영균
Original Assignee
주식회사 포스코건설
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Application filed by 주식회사 포스코건설 filed Critical 주식회사 포스코건설
Publication of WO2018038394A1 publication Critical patent/WO2018038394A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • 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
    • B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
    • 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
    • B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
    • B03C1/145—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets with rotating annular or disc-shaped material carriers
    • 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
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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.
  • the physical method of removing phosphorus using the coagulation sedimentation method has the advantage that the phosphorus removal process is relatively shorter than the biological method, the phosphorus removal efficiency of alumina sulfate (Al2 (SO4) 3) used as a conventional flocculant is not good. Not high, there is a problem that a large amount of sludge occurs in the flocculation process.
  • Al2 (SO4) 3 alumina sulfate
  • 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 water treatment device of the present invention is the adsorption reaction tank 110 is formed with an inlet 111 is introduced contaminated water;
  • the washing water is preferably sodium hydroxide (NaOH) solution.
  • the recovery tank 120 is preferably provided with a magnetic recovery device 130 for recovering the magnetite (Fe 3 O 4 ) that is the phosphorus of the contaminated water on the surface.
  • the magnetic recovery device 130 is a motor 131; A rotating shaft 132 coupled to the motor 131 to rotate; A plurality of magnetic plates 133 coupled to the rotation shaft 132 at intervals from each other;
  • the magnetite (Fe 3 O 4 ) is installed to be in close contact with at least one surface of the front or rear portion of the magnetic plate 133, the magnetic plate 133 adsorbed to the magnetic plate 133 during rotation of the magnetic plate 133
  • a separation unit 134 formed in an upper region of the rotation shaft 132 so as to automatically drop off;
  • a first transfer unit 135 installed below the separation unit 134 to collect the magnetite (Fe 3 O 4 ) dropped by the separation unit 134 and transfer the collected magnetite (Fe 3 O 4 ) to the second transfer unit 136.
  • the second transfer part 136 may be connected to the washing tank 140 to transfer the magnetite (Fe 3 O 4 ) to the washing tank 140.
  • the first transfer part 135 is installed to be inclined downward toward the second transfer part 136, and the second transfer part 136 is preferably installed to be inclined downward toward the washing tank 140.
  • the adsorption reaction tank 110 is preferably divided into a plurality of partitions 112 are installed to have a zigzag flow path in the vertical direction.
  • the magnetite (Fe 3 O 4 ), the washing is completed in the washing tank 140 is preferably moved to the spraying apparatus 200 through the transfer pipe (P1) and reused.
  • the washing water of the washing tank 140 is transferred to the concentration tank 150 when phosphorus is accumulated at a predetermined concentration or more, and the washing water is preferably improved to agricultural fertilizer by adjusting the phosphorus concentration in the concentration tank 150.
  • the magnetite spraying step, the magnetite recovery step, the magnetite washing step is preferably performed at the same time in the water treatment apparatus.
  • the water treatment apparatus of the present invention can use the magnetite (Fe 3 O 4 ) that is used semi-permanently, it is possible to reduce the water treatment operation cost.
  • the water treatment apparatus of the present invention has an excellent phosphorus removal rate of contaminated water, a rapid water treatment process, and can effectively remove phosphorus with a medium / small apparatus.
  • the water treatment apparatus of the present invention does not generate by-products such as sludge after water treatment, it is environmentally friendly.
  • 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 front view of the recovery tank according to an embodiment of the present invention.
  • Figure 4 is a side view of the magnetic recovery device according to an embodiment of the present invention.
  • Figure 5 is an enlarged perspective view of the magnetic plate according to an embodiment of the present invention.
  • FIG. 6 is a magnetite recovery step process diagram according to an embodiment of the present invention.
  • P1 transfer pipe 110: adsorption reaction tank
  • separation unit 135 the first transfer unit
  • 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 water treatment device of the present invention is the adsorption reaction tank 110 is formed with an inlet 111 is introduced contaminated water;
  • the water treatment apparatus of the present invention uses a magnetite (Fe 3 O 4 ) excellent in the adsorption of phosphorus or heavy metals in the iron oxides (Fe 2 O 3 , Fe 3 O 4 , FeO) by-products generated in the steelmaking 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 present invention is the magnetite in the adsorption tank (110) (Fe 3 O 4 ) powder and the by introducing a number of stirring contaminated with collection tank (120), attached to the surface of the polluted water magnetite (Fe 3 O 4) is recovered
  • the contaminated water from which phosphorus has been removed is a water treatment device for outflow, and the water treatment time is shorter than that of a conventional phosphorus removal method. Phosphorus removal efficiency is high.
  • the water treatment apparatus of the present invention does not require a large water treatment plant, the manufacturing cost of the water treatment plant can be reduced.
  • the water treatment device of the present invention is excellent in environmental friendliness since sludge does not occur after the water treatment and environmentally harmful by-products are not generated.
  • the wash water is a sodium hydroxide (NaOH) solution.
  • magnetite Fe 3 O 4
  • phosphorus desorption is facilitated by OH ⁇ .
  • the recovery tank 120 is preferably provided with a magnetic recovery device 130 for recovering the magnetite (Fe 3 O 4 ) that is adsorbed phosphorus of the contaminated water on the surface.
  • Self-recovering device 130 is a device for adsorbing the magnetite (Fe 3 O 4) using a magnetic force of the magnetite (Fe 3 O 4).
  • Magnetic recovery device 130 is a motor 131; A rotating shaft 132 coupled to the motor 131 to rotate; A plurality of magnetic plates 133 coupled to the rotation shaft 132 at intervals from each other; The rotating shaft is installed to be in close contact with at least one surface of the front or rear portion of the magnetic plate 133, so that the magnetite (Fe 3 O 4 ) adsorbed to the magnetic plate 133 during the rotation of the magnetic plate 133 automatically drop off A separator 134 formed in an upper region of the 132; And a first transfer part 135 installed below the separation part 134 to collect and remove the magnetite (Fe 3 O 4 ) dropped by the separation part 134 to the second transfer part 136.
  • the transfer unit 136 may be connected to the washing tank 140 to transfer the magnetite (Fe 3 O 4 ) to the washing tank 140.
  • the magnetic recovery device 130 is installed so that the cross section of the magnetic plate 133 is placed in the flow direction of the contaminated water (see Fig. 2).
  • the contaminated water introduced into the recovery tank 120 hits the end face of the magnetic plate 133, the magnetite (Fe 3 O 4 ) is attached to the magnetic plate 133 do.
  • the attached magnetite (Fe 3 O 4 ) is transferred to the washing tank 140 only by the rotation of the magnetic plate 133.
  • the first transfer part 135 is installed to be inclined downward toward the second transfer part 136, and the second transfer part 136 is preferably installed to be inclined downward toward the washing tank 140.
  • the magnetite Fe 3 O 4 is automatically transferred to the washing tank 140 along the gravity.
  • the adsorption reaction tank 110 is preferably divided into a plurality of partitions 112 are installed to have a zigzag flow path in the vertical direction.
  • the magnetite (Fe 3 O 4 ), the washing is completed in the washing tank 140 is preferably moved to the spraying apparatus 200 through the transfer pipe (P1) and reused.
  • the magnetite (Fe 3 O 4 ), which has been washed by the washing water, may be moved to a spreading device and reused.
  • the washing water of the washing tank 140 is transferred to the concentration tank 150 when phosphorus is accumulated at a predetermined concentration or higher, and the washing water is preferably improved to agricultural fertilizer by adjusting the phosphorus concentration in the concentration tank 150.
  • the washing water having a high phosphorus concentration can be reproduced as agricultural fertilizer, so that the by-products after the water treatment can be recycled.
  • Water treatment method using a water treatment device is a magnetite spraying step of spraying the magnetite (Fe 3 O 4 ) powder to the contaminated water introduced into the adsorption reaction tank 110 using the spraying device (200); A magnetite recovery step of recovering the magnetite (Fe 3 O 4 ) powder from the contaminated water introduced into the recovery tank 120; And a magnetite washing step of transferring the magnetite (Fe 3 O 4 ) powder recovered from the recovery tank 120 to the washing tank 140 and washing it.
  • the magnetite spreading step, the magnetite recovering step, and the magnetite washing step are preferably performed simultaneously in the water treatment apparatus.
  • the magnetite spreading step, the magnetite recovery step, the magnetite washing step can all proceed without interruption, the work efficiency is excellent and the time of the water treatment process can be shortened.
  • Water treatment method using a water treatment device is a magnetite spraying step of spraying the magnetite (Fe 3 O 4 ) powder in the contaminated water introduced into the adsorption reaction tank 110 using the spraying device (200); A magnetite recovery step of recovering the magnetite (Fe 3 O 4 ) powder from the contaminated water introduced into the recovery tank 120; A magnetite washing step of transferring the magnetite (Fe 3 O 4 ) powder recovered from the recovery tank 120 to the washing tank 140 and washing it; Concentration tank transfer step of transferring the washing water to the concentration tank 150 for use as agricultural fertilizer; Includes an improved step of improving the washing water to agricultural fertilizer by adding phosphorus to the washing water transferred to the concentration tank 150.
  • the wash water generated after the water treatment can be improved to agricultural fertilizer, the by-products after the water treatment can be recycled.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Analytical 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 décrit ci-dessus, l'appareil de traitement des eaux selon la présente invention comprenant : un réservoir de réaction d'adsorption (110) qui a une partie d'entrée (111) à travers laquelle de l'eau polluée est introduite ; un dispositif de pulvérisation (200) qui pulvérise de la magnétite (Fe3O4) sous forme de poudre dans le réservoir de réaction d'adsorption (110) afin d'adsorber le phosphore contenu dans l'eau polluée ; un réservoir de récupération (120) sur lequel une partie de sortie (121) est prévue, et qui est relié à une partie d'extrémité du réservoir de réaction d'adsorption (110) de manière à permettre à l'eau polluée contenant de la magnétite (Fe3O4) de s'écouler à l'intérieur de celui-ci en traversant le réservoir de réaction d'adsorption (110) ; et un réservoir de lavage (140) qui élimine le phosphore de la magnétite (Fe3O4) récupérée dans le réservoir de récupération (120) en utilisant de l'eau de lavage. 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. La présente invention concerne un appareil de traitement des eaux par lequel de l'eau polluée mélangée avec de la magnétite (Fe3O4) sous forme de poudre dans le réservoir de réaction d'adsorption (110) est introduite dans le réservoir de récupération (120) dans lequel de la magnétite (Fe3O4) ayant du phosphore provenant de l'eau polluée fixé à sa surface est récupérée, et l'eau polluée de laquelle le phosphore est éliminé est évacuée, et ainsi la présente invention permet un temps de traitement des eaux plus court et une efficacité d'élimination de phosphore plus élevée par comparaison avec des appareils de traitement des eaux de type à élimination de phosphore traditionnellement utilisés.
PCT/KR2017/007592 2016-08-23 2017-07-14 Appareil de traitement des eaux utilisant de la magnétite et procédé de traitement des eaux l'utilisant WO2018038394A1 (fr)

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KR1020160106667A KR101746135B1 (ko) 2016-08-23 2016-08-23 마그네타이트를 이용한 수처리장치 및 이를 이용한 수처리방법
KR10-2016-0106667 2016-08-23

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110420616A (zh) * 2019-07-18 2019-11-08 潍坊学院 一种四氧化三铁/四硫化钼复合体及其制备方法和应用

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101864243B1 (ko) * 2017-09-08 2018-06-04 주식회사 포스코건설 마그네타이트 재생장치 및 이를 이용한 마그네타이트 재생방법
KR101864242B1 (ko) * 2017-09-08 2018-06-04 주식회사 포스코건설 분리조를 이용한 마그네타이트 재생장치 및 이를 이용한 마그네타이트 재생방법

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JP2004057962A (ja) * 2002-07-30 2004-02-26 Network:Kk 磁気処理装置
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JP2016101539A (ja) * 2014-11-27 2016-06-02 株式会社日立製作所 磁気分離装置、及び原水処理装置

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JP2009136784A (ja) * 2007-12-06 2009-06-25 Tokyo Metropolitan Univ リン除去装置、リン回収装置、リン除去方法及びリン回収方法
JP2016101539A (ja) * 2014-11-27 2016-06-02 株式会社日立製作所 磁気分離装置、及び原水処理装置
KR101568107B1 (ko) * 2015-05-29 2015-11-11 주식회사 포스코건설 수 처리 방법

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Title
ZACH-MAOR, A. ET AL.: "Adsorption-desorption Mechanism of Phosphate by Immobilized Nano-sized Magnetite Layer: Interface and Bulk Interactions", JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 363, 27 July 2011 (2011-07-27), pages 608 - 614, XP028288417 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110420616A (zh) * 2019-07-18 2019-11-08 潍坊学院 一种四氧化三铁/四硫化钼复合体及其制备方法和应用
CN110420616B (zh) * 2019-07-18 2022-07-01 潍坊学院 一种四氧化三铁/四硫化钼复合体及其制备方法和应用

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