200946462 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種藉由逆滲透膜分離將溶解有金屬成分 之廢水、工廠排水、地下水、河水、填埋滲出水、海水等 含有金屬成分之水進行分離而獲得淨化水之含有金屬成分 之水的淨化處理方法及淨化處理裝置。 【先前技術】 ❹ 先前，作為此種淨化處理方法，眾所周知有如下方法， 即，實施除濁步驟及逆滲透膜分離步驟，該除濁步驟係利 用MF(Micro-filtrati〇n，精濾）膜過濾裝置等除濁裝置對溶 解有金屬成分之含有金屬成分之水進行除濁，該逆滲透膜 分離步驟係藉由逆滲透膜分離而將該除濁步驟中經除濁之 除濁處理水分離為滲透水與濃縮水。 該方法中，藉由逆滲透膜分㈣生成之滲透水成為淨化 水’濃縮水則因含有較多之金屬成分而無法直接廢棄另200946462 VI. Description of the Invention: [Technical Field] The present invention relates to a metal component containing waste metal, wastewater, groundwater, river water, landfill water, seawater, etc., which are dissolved by a reverse osmosis membrane. The water is separated to obtain a purification treatment method and a purification treatment device for the water containing the metal component of the purified water. [Prior Art] Previously, as such a purification treatment method, a method of performing a turbidity removal step and a reverse osmosis membrane separation step using a MF (Micro-filtrati〇n, fine filtration) membrane is known. The turbidity removing device such as a filtering device removes turbidity from the metal component-containing water in which the metal component is dissolved, and the reverse osmosis membrane separating step separates the turbid turbidity-removing water in the turbidity removing step by separating the reverse osmosis membrane It is permeable to water and concentrated water. In this method, the permeated water produced by the reverse osmosis membrane sub-(4) becomes purified water. The concentrated water is not directly discarded due to the inclusion of more metal components.
外藉由利用蒸發濃縮之處理使金屬成分固化後加以填埋等 而進行處理。 專利文獻1:日本專利特開2003_103259號公報 【發明内容】 發明所欲解決之問題 然而，上述先前之淨化處理 藉由逆滲透膜分離而生成之濃 蒸發而必須有較多之能量等， 大之負擔。 方法具有如下問題，即，於 縮水之處理中，為了使水分 濃縮水之處理必然會帶來很 139077.doc -4- 200946462 鑒於上述先前之問題，本發明之課題在於提供一種至少 可減輕藉由逆滲透膜分離而生成之濃縮水之處理負擔的含 有金屬成分之水的淨化處理方法及淨化處理裝置。 [解決問題之技術手段] 為了解決上述課題，本發明提供一種含有金屬成分之水 的/爭化處理方;^ ’其肖徵在⑤，其係實施逆渗透膜分離步 驟之含有金屬成分之水料化處理方法，該逆滲透膜分離 ❹ ❹ 步驟係藉由逆滲透膜分離而將溶解有金屬《分之含有金屬 成分之水分離為作為滲透水的淨化水與濃縮水，進而，實 施電解步驟及析Α物分離㈣，㈣解步驟料上述濃縮 水進行電解而自陰極侧獲得鹼性水，該析出物分離步驟係 自該電解步驟所得之驗性水中將成為驗性而析出之金屬成 分過濾分離。 該含有金>1成分之水的淨化處理方法中，可藉由電解 驟之電解而獲得於陰極㈣縮有㈣成分之驗性水，並 出物分離步驟將成為驗性而析出之金屬成分藉 二離。因此’可明顯減輕用以使金屬成分析出固 之蒸發濃縮之處理負擔β爯去_ — ' 者，错由過濾而分離之金屬 刀了藉由例如回洗而除去。 鲂蕤ά 3此時，所生成之回洗廢液可 較藉由逆滲透膜而分離之濃 土 m 项來含有極兩濃度之金屬成 者。因此，即便於進行回洗之 濃縮之處理負擔。 則’亦可明顯減輕蒸 本發明中，較好的 透膜分離步驟前 之上 疋，實施藉由除濁裝置而對上述逆滲 述3有金屬成分之水進行除濁的除濁 139077.doc 200946462 步驟，上述逆滲透膜分離步驟中，對上述除濁步驟中經除 濁之含有金屬成分之水進行逆滲透膜分離，上述析出物= 離步驟中，利用上述除濁裝置將已析出之金屬成分分離^ 該方法中，於除濁步驟中預先進行除濁，#此可減輕逆 滲透膜之負擔。又，析出物分離步驟中，❹除濁步驟中 所使用之除濁裝置，故而無需另外設置除濁裝置，於裝置 之成本方面，可進一步減輕濃縮水之處理負擔。 —進而，本發明巾，較好的是，上述電解步驟令自陽極側 獲得酸性水後，實施如下之中和步驟，即，將利用該酸性 水對上述逆滲透膜進行除菌、清洗後之酸性水，或者將直 接由上述電解步驟所得之酸性水加入藉由上述析出物分離 步驟而使金屬成分已分離之鹼性水中來進行中和。 經過上述析出物分離步驟使已析出之金屬成分分離後之 驗性水通常係被中和後廢棄，但是該方法中，作為中和用 而添加者係使用上述電解步驟中自陽極側所獲得之酸性 水’故而無須另外準備酸性水或者生成酸性水，從而可進 一步減輕所生成之濃縮水之處理負擔。 又’作為上述除濁裝置’較好的是藉由使用有膜或 UF(Ultra-fihration，超濾）膜之過濾而進行除濁之裝置。 該方法中’使用有MF膜或UF膜之除濁裝置可比較簡便 地將已析出之金屬成分分離，故而可進一步減輕濃縮水之 處理負擔。 進而’本發明中’較好的是，使上述驗性水之pH值為 9 〜14。 139077.doc 200946462 该方法中，可藉由使鹼性水之pH值為9以上而使金屬成 分充分析出’且可利用除濁裝置將已析出之金屬成分充分 分離’故而可進-步減輕㈣水之處理負擔。又，若阳值 為14以下，則亦可降低對除濁裝置（例如mf膜等）帶來損害 之顧慮。 ❹The treatment is carried out by solidifying the metal component by a treatment using evaporation concentration, filling it, and the like. Patent Document 1: Japanese Laid-Open Patent Publication No. 2003-103259. SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, in the above-described purification treatment, it is necessary to have a large amount of energy due to the concentrated evaporation generated by the separation of the reverse osmosis membrane, and the like. burden. The method has the problem that in the treatment of shrinkage, in order to make the water concentrated water treatment inevitably bring about 139077.doc -4- 200946462 In view of the above problems, the object of the present invention is to provide at least a A method for purifying water containing a metal component and a purification treatment device for treating a concentrated water formed by reverse osmosis membrane separation. [Means for Solving the Problems] In order to solve the above problems, the present invention provides a water-containing treatment unit containing a metal component, and a schematic diagram of a metal component-containing water in which a reverse osmosis membrane separation step is carried out. In the materialization treatment method, the reverse osmosis membrane is separated from the ruthenium membrane by separating the water containing the metal component into the purified water and the concentrated water as the permeated water by separating the reverse osmosis membrane, and further performing the electrolysis step And the separation of the precipitates (4), (4) the step of the above-mentioned concentrated water is electrolyzed to obtain alkaline water from the cathode side, and the precipitate separation step is filtered from the metal component of the test water obtained by the electrolysis step. Separation. In the method for purifying water containing the gold > 1 component, the electromagnetizable electrolysis can be used to obtain the (4) component-recommended water in the cathode (4), and the product separation step becomes the metal component precipitated and precipitated. Borrow two away. Therefore, it is possible to significantly reduce the processing burden of the evaporation concentration of the metal for analysis and solidification, and the metal knife which is separated by filtration is removed by, for example, backwashing.鲂蕤ά 3 At this time, the generated backwash waste liquid can be composed of a metal having a very high concentration compared to the concentrate m which is separated by the reverse osmosis membrane. Therefore, even if the backwashing is concentrated, the processing load is concentrated. Then, it can also significantly reduce the steaming. In the present invention, it is better to remove the turbidity of the metal having the metal component by the turbidity removing device before the permeable membrane separation step 139077.doc In the step of separating the reverse osmosis membrane, the reverse osmosis membrane is separated from the turbidity-containing metal component-containing water in the turbidity removing step, and the precipitated material is removed from the step by using the turbidity removing device. Component Separation ^ In this method, turbidity removal is performed in advance in the turbidity removal step, which reduces the burden on the reverse osmosis membrane. Further, in the precipitate separation step, since the turbidity removing means used in the turbidity removing step is omitted, it is not necessary to separately provide the turbidity removing means, and the processing load of the concentrated water can be further reduced in terms of the cost of the apparatus. Further, in the towel of the present invention, preferably, the electrolytic step is such that after the acidic water is obtained from the anode side, the neutralization step is performed, that is, the reverse osmosis membrane is sterilized and washed by the acidic water. The acidic water or the acidic water directly obtained by the above electrolysis step is added to the alkaline water which has been separated by the above-described precipitate separation step to neutralize the metal component. After the precipitate separation step, the precipitated water separated by the precipitated metal component is usually discarded after being neutralized, but in this method, the additive is used for the neutralization and is obtained from the anode side in the above electrolysis step. Acidic water does not require the preparation of acidic water or acidic water, which further reduces the processing burden of the concentrated water produced. Further, as the above-described turbidity removing means, it is preferable to carry out turbidity removal by filtration using a membrane or UF (Ultra-fihration) membrane. In this method, the turbidity removing device using the MF film or the UF film can relatively easily separate the precipitated metal components, so that the processing load of the concentrated water can be further reduced. Further, in the present invention, it is preferred that the pH of the above-mentioned test water is 9 to 14. 139077.doc 200946462 In this method, the metal component can be analyzed by the pH value of the alkaline water of 9 or more, and the precipitated metal component can be sufficiently separated by the turbidity removing device, so that the metal component can be further reduced (4) The burden of water treatment. Further, if the positive value is 14 or less, it is possible to reduce the risk of damage to the turbidity removing device (e.g., mf film). ❹
又，本發明提供一種含有金屬成分之水的淨化處理裝 置，其特徵在於，其係具有逆滲透膜分離裝置之含有金屬 成分之水的淨化處理裝置’該逆滲透膜分離裝置將溶解有 金屬成分之含有金屬成分之水藉由逆渗透膜而分離為作為 滲透水之淨化水與濃縮水，進而，具解裝置及析出物 分離裝置’該電解裝置係對上述濃縮水進行電解而自陰極 側獲得鹼性水，該析出物分離裝置係自該電解裝置所得之 鹼性水中將成為鹼性而析出之金屬成分過濾分離。 [發明之效果] 如以上所述，根據本發明，至少可減輕藉由逆滲透膜分 離而生成之濃縮水之處理負擔。 【實施方式】 以下，參照圖式對本發明之實施形態進行說明。 首先’對含有金屬成分之淨化處理裝置進行說明 成分之水的淨化處理裝Moreover, the present invention provides a purification treatment apparatus for water containing a metal component, which is characterized in that it is a purification treatment apparatus for water containing a metal component of a reverse osmosis membrane separation device, and the reverse osmosis membrane separation device dissolves a metal component. The water containing the metal component is separated into the purified water and the concentrated water as the permeated water by the reverse osmosis membrane, and further, the electrolysis device electrolyzes the concentrated water and obtains from the cathode side. In the alkaline water, the precipitate separation device is obtained by separating and separating the metal component precipitated from the alkaline water obtained in the electrolytic device. [Effect of the Invention] As described above, according to the present invention, at least the processing load of the concentrated water generated by the separation of the reverse osmosis membrane can be reduced. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the purification treatment device containing the metal component is described.
圖1係本實施形態之含有金屬 中之概略流程圖。 个貝力必思 括：原 乂狂裝置通常 〜IF与含有金屬 分之水的原水A;除濁裝置20，其對自命店， 丁目該原水槽10所供 水槽丨〇,其儲存溶解有金屬成分之作為含有金屬 άΗ A : ir^s -S ^ ^ on . -u- . 139077.doc 200946462 之原水A進行除濁；逆滲透膜分離裝置3〇，其將利用該除 濁裝置20進行了除濁之除濁處理水藉由逆滲透膜而分離為 滲透水B之淨化水與濃縮水c ;電解裝置4〇，其對上述濃 縮水C進行電解而自陰極側獲得鹼性水D ;以及析出物分 離裝置50，其對自利用該電解裝置4〇所得之鹼性水D中成 為鹼性而析出之金屬成分進行分離。 上述原水槽10構成為用以儲存原水A之槽。 作為原水A，可列舉例如廢水、廢水之生物處理水、工 廠排水、地下水、河水、填埋滲出水、海水等。 又，作為該等原水A中所含有之金屬成分，可列舉鈣、 鎮、鐵、链等。 上述除濁裝置20藉由插入有泵之配管而與上述原水槽1〇 連通，對其供給原水槽10内所儲存之原水A，該除濁裝置 20進而包括過濾原水A之過濾構件以便可對所供給之原水 A進行除濁。 作為該過濾構件可列舉精濾膜（MF膜）、超濾膜（UF膜）等 膜構件2丨，或包括砂過濾時所使用之砂過濾層之過濾構 件。 更好的是，膜構件21係包括精濾膜而構成。 再者，本說明t中，所謂除濁係指較逆參透膜過滤粗糙 之過渡，即於逆渗透膜分離之前實施來將較以逆渗透膜所 分離之物質更粗之雜質除去。 本實施形態之淨化處理裂置，藉由配管而將經除濁裝置 2〇除濁之除濁處理水供給至料透膜分離裝置3〇。詳細而 139077.doc 200946462 言，該淨化處理裝置具備儲存經除濁裝置2〇除;.蜀之除濁處 理水之除濁處理水槽22,處理水槽22之除濁處理水 通過插入有泵之配管而供給至逆滲透膜分離裝置3〇。 又，可根據需s ’使除濁處理水等回济l至除濁裝置2〇來 ‘ 對除濁裝置20進行清洗（所謂回洗）。 : 丨料滲透膜分離裝置Μ構成為包括逆㈣㈣（R0膜 • 31) ’且將所供給之除濁處理水藉由逆滲透膜分離而分離 Φ &幾乎未溶解有金屬成分之作為渗透水B之淨化水、與溶 解之金屬成分濃縮而成之濃縮水C。 上述滲透水B通常設定為電導率係2〇〇 ^/cm以下，較好 的是設定為50 0/Cm以下。又，上述濃縮水c之電導率嗖 定為3刪〜15_ ，較好的是設^為簡〜刪〇 pS/cm。 本實施形態之淨化處理裝置藉由配管而將上述滲透水B 排出至系統外，且將上述濃縮水c供給至電解裝置4〇。 ® 詳細而言，該淨化處理裝置包括儲存濃縮水C之濃縮水 儲存槽33，該濃縮水儲存槽33中所儲存之濃縮水c通過插 入有泵之配管供給至電解裝置4〇。 ' 上述電解裝置40包括儲存所供給之濃縮水C且具有陰極 ' 與陽極之電解槽41，該電解槽41構成為由隔膜42劃分為陰 極側與陽極側。作為上述隔膜42，可列舉例如mf膜等= 細孔膜或離子交換膜。 上述電解裝置40構成為可藉由對上述陰極與陽極施加電 壓而對濃縮水C進行電解。 139077.doc 200946462 上述電解裝置40中，當推并带切士 丁電解犄，金屬成分會集中於 陰極側並且生成經基離子 雕十從而可自陰極側獲得鹼性水 D，又反之可自陽極側獲得酸性水Ε。 上述驗性水D通常ρΗ值為9〜14，較好的是將pH值調 10〜12 。 本實施形態之淨化處理裝置進而藉由配管而將上述驗性： 水D供給至析出物分離裝置5〇。 詳細而言，該淨化處理裝置包括儲存驗性水D之驗性水' 儲存槽44’儲存於該驗性水儲存槽料中之驗性水D通過插〇 入有栗之配管而被回送至作為析出物分離裝置5〇之上述除 濁裝置20。 又構成為於驗性水儲存槽44中所儲存之驗性水d未達到 特定PH值之情形時，將該驗性水D之至少一部分循環回送 至電解槽41之陰極側’來對驗性水儲存槽44之槽内之驗性 水D的pH值進行調整。 作為上述析出物分離裝置5〇之除濁裝置2〇，構成為自所 供給之驗性水D中藉由上述過遽構件2 i而過滤分離成為驗© 性而析出之金屬成分。 本實施形態之淨化處理裝置中，將析出之金屬成分已分 離之鹼性水D供給至用以中和該鹼性水〇的中和槽6〇中。 又，上述除濁裝置20可藉由使除濁處理水等回流而進行 - 回洗，藉由回洗，而使得所過濾分離之金屬成分或懸濁物 質等固形物在高濃度地含於回洗廢液F中之狀態下，儲存 於回洗廢液儲存槽23中且排出至系統外。 139077.doc •10· 200946462 再者，高濃度地含有排外 液㈣先前眾所周知之方法來進行水處理 先廢 列Ϊ:::態中，作為自驗性水。中析出之金屬成分，可 歹J牛例如鈣、鎂、鐵、鋁等， 钙、俨纪匕 这孚金屬成分係以例如碳酸 太眘、、化鐵、絲化料無機鹽之狀態析出。 本實：形態之淨化處理裝置進而藉由配管而Fig. 1 is a schematic flow chart showing the metal contained in the embodiment. Beilibis includes: the original mania device usually ~IF and raw water A containing metal water; turbidity device 20, its self-dealing shop, Dingmu the original water tank 10 water supply tank, its storage dissolved metal The component contains metal ruthenium A : ir^s -S ^ ^ on . -u- . 139077.doc 200946462 The raw water A is turbid; the reverse osmosis membrane separation device 3 〇 is performed by the turbidity removing device 20 The turbidity-removing turbidity treatment water is separated into the purified water of the permeated water B by the reverse osmosis membrane and the concentrated water c; the electrolysis device 4 〇, which electrolyzes the concentrated water C to obtain the alkaline water D from the cathode side; The precipitate separation device 50 separates the metal component precipitated from the alkaline water D obtained by the electrolytic device 4 to be alkaline. The raw water tank 10 is configured as a tank for storing raw water A. Examples of the raw water A include biological treatment water of wastewater, wastewater, plant drainage, ground water, river water, landfill water, seawater, and the like. Further, examples of the metal component contained in the raw water A include calcium, town, iron, and chain. The turbidity removing device 20 is connected to the raw water tank 1 by means of a pipe into which the pump is inserted, and is supplied to the raw water A stored in the raw water tank 10, and the turbidity removing device 20 further includes a filtering member for filtering the raw water A so as to be The raw water A supplied is turbid. The filter member may be a membrane member 2 such as a fine filter membrane (MF membrane) or an ultrafiltration membrane (UF membrane), or a filtration member including a sand filtration layer used in sand filtration. More preferably, the membrane member 21 is composed of a fine filter membrane. Further, in the present specification t, the term "turbidity removal" refers to a transition from the coarse filtration of the reverse osmosis membrane, i.e., before the separation of the reverse osmosis membrane, the impurities which are thicker than the material separated by the reverse osmosis membrane are removed. The purification treatment of the present embodiment is ruptured, and the turbidity-removed water which has been turbid by the turbidity removing device 2 is supplied to the permeable membrane separation device 3 by means of a pipe. 139077.doc 200946462 In other words, the purification treatment device is provided with a turbidity treatment water tank 22 for storing the turbidity removal device 2, and the turbidity treatment water for the treatment tank 22 is inserted through a pipe into which the pump is inserted. It is supplied to the reverse osmosis membrane separation device 3〇. Further, the turbidity-removing water or the like can be returned to the turbidity removing device 2 to "clean the turbidity removing device 20 (so-called backwashing). : The osmosis membrane separation device Μ is configured to include reverse (four) (four) (R0 membrane • 31) ' and separate the turbidity-treated water supplied by separation by reverse osmosis membrane Φ & almost no dissolved metal component as permeate water B purified water and concentrated water C obtained by concentrating dissolved metal components. The permeated water B is usually set to have a conductivity of 2 〇〇 ^ / cm or less, preferably 50 0/1 cm or less. Further, the conductivity of the concentrated water c is determined to be 3 〜 15 _ , and it is preferable to set ^ to 〇 pS/cm. In the purification processing apparatus of the present embodiment, the permeated water B is discharged to the outside of the system by piping, and the concentrated water c is supplied to the electrolysis apparatus 4A. In detail, the purification treatment apparatus includes a concentrated water storage tank 33 storing concentrated water C, and the concentrated water c stored in the concentrated water storage tank 33 is supplied to the electrolysis device 4 through a pipe into which the pump is inserted. The electrolysis device 40 includes an electrolytic cell 41 that stores the supplied concentrated water C and has a cathode 'and an anode, and the electrolytic cell 41 is configured to be divided into a cathode side and an anode side by a separator 42. The separator 42 may, for example, be an mf film or the like = a fine pore film or an ion exchange membrane. The electrolysis device 40 is configured to electrolyze the concentrated water C by applying a voltage to the cathode and the anode. 139077.doc 200946462 In the above electrolysis device 40, when the Chessin electrolytic crucible is pushed and pushed, the metal component is concentrated on the cathode side and the base ion engraving 10 is generated so that the alkaline water D can be obtained from the cathode side, and vice versa. Acidic leeches are obtained on the side. The above-mentioned test water D usually has a pH value of 9 to 14, and it is preferred to adjust the pH to 10 to 12. Further, in the purification processing apparatus of the present embodiment, the above-described property: water D is supplied to the precipitate separation device 5〇 by piping. In detail, the purification treatment device includes an organic water storage tank 44 that stores the water of the auditory water D. The test water D stored in the water-repellent storage tank is sent back to the tube with the chestnut. The turbidity removing device 20 is used as the precipitate separating device 5〇. Further, when the reproducible water d stored in the inertia water storage tank 44 does not reach a specific pH value, at least a part of the geophysical water D is recycled back to the cathode side of the electrolytic cell 41. The pH of the test water D in the tank of the water storage tank 44 is adjusted. The turbidity removing device 2 of the above-described precipitate separating device 5 is configured to be a metal component which is separated from the supplied water-producing water D by filtration and separation by the over-twisting member 2 i. In the purification treatment apparatus of the present embodiment, the alkaline water D from which the precipitated metal component has been separated is supplied to the neutralization tank 6 for neutralizing the alkaline water. Further, the turbidity removing device 20 can perform backwashing by refluxing the turbidity-treated water or the like, and by backwashing, the solid matter such as the metal component or the suspended matter to be separated by filtration can be contained in a high concentration. In the state of the washing waste liquid F, it is stored in the backwashing waste liquid storage tank 23 and discharged to the outside of the system. 139077.doc •10· 200946462 Furthermore, the high-concentration contains the exofluid (4) The previously known method for water treatment first wastes in the Ϊ::: state, as self-test water. The metal component precipitated in the medium may be, for example, calcium, magnesium, iron, aluminum, etc., calcium, and cesium. The metal component is precipitated in the state of, for example, carbonic acid, iron, and silk minerals. The fact that the form of purification treatment device is further by piping
❹ =供給至逆滲透膜分離裝㈣中，且進而供給至中和槽 砰細而言 ”^理裝置構成為包括儲存酸性^之 酸性水儲存槽46，且將儲存於㈣性讀存㈣中之酸性 通過插入有栗之配管供給至逆滲透膜分離裝置30,並 將〉月洗過逆渗透膜31之酸性水£供給至中和槽6〇中。 再者構成為於酸性水儲存槽46中所儲存之酸性水 到特定ρΗ值之情形時，將該酸性水Ε之至少—部分循環回 送至電解槽41之陽極側’來對酸性水儲存槽“之槽内之酸 性水Ε的pH進行調整。 、本實施形態之淨化處理裝置進而可藉由配管而將供給至 逆渗透膜分離t置30並對逆滲透膜31進行了清洗之酸性水 E循環回送至上述酸性水儲存槽仏。詳細而言，亦可構成 為’將循環回送之酸性水轉次供給至逆渗透膜分離裝置 30並對逆滲透顏進行了清洗之後，供給至巾和槽的中。 中和槽60中，對經過上述析出物分離裝置5〇之鹼性水D 與該酸性水E進行混合而進行彼此之中和。 進而，中和槽60中經中和之中和水G通過插入有泵之配 139077.doc • 11 - 200946462 又或者經由回洗廢液儲存槽 管供給至上述原水槽〗〇中 排出至系統外。 、再者’排出至系統外之中和水G藉由先前眾所周知 法而進行水處理。 本實施形態中，將酸性水Ε供給至逆滲透媒分離裝置％ 中’故而實施將附著於逆渗透膜31上之水垢或細菌除去。 此處，上述酸性水Ε通常調整為ρΗ值係i〜5，較 . 調整為pH係2〜4。 、疋 若為該阳值，則不會對逆滲透膜31帶來較大之損害，可 © 充分地進行除垢及除菌。 本實施形態之含有金屬成分之水的淨化處理裝置如上所 述’接著，對本實施形態之含有金屬成分之水的淨化處理 方法進行說明。 本實紅形態之淨化處理方法實施如下步驟··除濁步驟， 利用除濁裝置20對溶解有金屬成分之作為含有金屬成分之 、原XA進行除屬，逆渗透膜分離步驟，將該除濁步驟 中經除濁之除濁處理水藉由逆滲透膜分離而分離為作轉〇 透水B之淨化水與濃縮水電解步驟，將上料縮水Μ 解而自陰極側獲得驗性水D並且自陽極側獲得酸性水ε;: 析出物分離步驟’自該電解步驟中所得之驗性水D中將成： 為驗J·生而析出之金屬成分過渡分離；回洗步驟，將過滤分 離之金屬成分藉由回洗而自除濁裝置2〇中除去，且將包含 ^除去之金屬成分等之回洗廢液排出；以及中和步驟，將 經過上述析出物分離步驟之驗性水與上述酸性水ε混合來 139077.doc -12- 200946462 進行中和。 本實施形態中，藉由析出物分離步驟而將析出之金屬成 分分離，並且以高濃度地含有金屬成分之回洗廢液作為對 象而進行廢水處理，故而可使作為廢水處理之對象之水量 . 減少，從而可明顯減輕處理負擔。 : 上述除濁步驟中，利用例如膜過遽而去除原水A中所含 ' 之泥等懸濁成分。 Φ 藉由該步驟而降低逆滲透膜分離步驟中所使用之逆滲透 膜3 1受到懸濁成分之損害之顧慮。 上述逆滲透膜分離步驟中，藉由逆滲透膜分離，而將藉 由除濁步驟已除去懸濁成分之原水A分離為滲透水B與濃 縮有金屬成分之濃縮水C。 本實施形態中，使用逆滲透膜31，故而可獲得溶解之金 屬被除去之純度極高之淨化水。 作為上述滲透水B，通常使電導率為2〇〇 uS/cm以下較 ❹ 好的是50 以下。又，作為上述濃縮水c，通常使電 導率為3〇〇〇〜15〇〇〇08/(：111，較好的是5〇〇〇〜1〇〇〇〇0/(^。 ， 上述電解步驟中，藉由電解而將藉由逆滲透膜步驟所生 成之》農細水C分離為陰極側之驗性水d與陽極側之酸性水 *. E。 電解時所施加之電壓通常為1〜5 V，較好的是2〜3 v。 可藉由設為該電壓而將濃縮水C充分電解。 又，電解之時間並未特別限定，持續進行至鹼性水D之 pH值為9〜14 ’酸性水E之pH值為1〜5為止。 139077.doc -13· 200946462 可藉由使驗性水D為所述pH值而使所含之金屬成分充分 析出。 又’藉由使酸性水E為所述pIi值而於以該酸性水e清洗 逆滲透膜31之情形時，可充分進行除垢及殺菌，並且可將 逆滲透膜3 1之損害抑制於較低。 上述析出物分離步驟中’自電解步驟所得之鹼性水D 中’藉由過濾而分離成為鹼性而析出之金屬成分。 具體而言，將以碳酸鈣、碳酸鎂、氫氧化鐵、氫氧化鋁 等無機鹽之狀態而析出之鈣、、鐵、鋁等金屬成分，使 用上述除濁步驟中所使用之除濁裝置20來分離。 上述中和步驟中，將經過上述析出物分離步驟之鹼性水 D與上述酸性水E供給至中和槽6〇中，使兩者混合來中 和。具體而言，將經過上述析出物分離步驟之鹼性水〇、 供給至逆滲透膜31中而將該逆渗透膜川〇以酸清洗後之作 為清洗廢液之酸性水E供給至中和槽6〇中來進行中和。 進而，本實施形態中，將中和步驟所得之中和水G與原 水A混合，與原水A一併再次實施同樣之處理，或者經由 回洗廢液儲存槽23而排出至系統外。 本實施形態中之含有金屬成分之水的淨化處理裝置及爭 化處理方法如上所述，但是本發明之含有金屬成分之水的 淨化處理裝置及淨化處理方法並不限定於上述實施形態， 可進行適當設計變更。 例如’本實施形態之淨化處理方法中，中和步驟中，作 為酸性水E係使用將逆滲透膜31加以酸清洗後之清洗廢 139077.doc •14- 200946462 液，但是於本發明中，亦可制ro❹ = supplied to the reverse osmosis membrane separation pack (4), and further supplied to the neutralization tank 砰 ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性 酸性The acidity is supplied to the reverse osmosis membrane separation device 30 through the piping into which the chestnut is inserted, and the acidic water of the reverse osmosis membrane 31 is supplied to the neutralization tank 6 。. Further, it is configured as the acidic water storage tank 46. When the acidic water stored in the solution reaches a specific value of ρ ,, at least part of the acidic hydrazine is recycled back to the anode side of the electrolytic cell 41 to carry out the pH of the acidic hydrazine in the tank of the acidic water storage tank. Adjustment. Further, in the purification treatment apparatus of the present embodiment, the acidic water E supplied to the reverse osmosis membrane separation t and placed in the reverse osmosis membrane 31 can be recycled to the acidic water storage tank by a pipe. Specifically, it is also possible to supply the acidic water which is recycled back to the reverse osmosis membrane separation device 30, and to wash the reverse osmosis surface, and then supply it to the towel and the tank. In the neutralization tank 60, the alkaline water D which passed the said sediment separation apparatus 5 is mix|blended with this acidic water E, and mutually mutually mutually. Further, the neutralized tank 60 is neutralized and the water G is supplied to the above-mentioned raw water tank through the 139077.doc • 11 - 200946462 into which the pump is inserted or discharged through the backwashing waste storage tank tube. . Further, it is discharged to the outside of the system and water G is treated by water by a previously well-known method. In the present embodiment, the acidic water hydrazine is supplied to the reverse osmosis medium separation device %, so that scale or bacteria adhering to the reverse osmosis membrane 31 are removed. Here, the acidic water hydrazine is usually adjusted to a pH value of i to 5, and is adjusted to a pH system of 2 to 4.疋 If it is this positive value, it will not cause much damage to the reverse osmosis membrane 31, and it can be fully descaled and sterilized. The water purification treatment apparatus containing the metal component of the present embodiment is as described above. Next, the method of purifying the water containing the metal component of the present embodiment will be described. The purification method of the real red form is carried out by the following steps: · Turbid removal step, the turbidity removal device 20 is used to remove the metal component as the metal component, and the original XA is removed, and the reverse osmosis membrane separation step is performed to remove the turbidity. In the step, the turbidity-removing turbidity treatment water is separated by the reverse osmosis membrane to be separated into the electrolysis step of the purified water and the concentrated water for the turbid water permeable B, and the feed water is dehydrated to obtain the test water D from the cathode side and The acidic side ε is obtained on the anode side; the precipitate separation step 'from the pseudo water D obtained in the electrolysis step will be: the transition of the metal component precipitated for the test J; the backwashing step, the metal to be separated by filtration The component is removed from the turbidity removing device 2 by backwashing, and the backwashing waste liquid containing the removed metal component or the like is discharged; and the neutralization step is performed by the above-described precipitate separating step and the above-mentioned acidic Water ε is mixed to 139077.doc -12- 200946462 for neutralization. In the present embodiment, the precipitated metal component is separated by the precipitate separation step, and the waste water is treated as a backwash waste liquid containing a metal component at a high concentration, so that the amount of water to be treated as waste water can be obtained. Reduced, which can significantly reduce the processing burden. In the above-described turbidity removing step, for example, a suspended component such as mud contained in the raw water A is removed by using a film which is excessively entangled. Φ By this step, there is a concern that the reverse osmosis membrane 31 used in the reverse osmosis membrane separation step is damaged by the suspended component. In the reverse osmosis membrane separation step, the raw water A from which the suspended component has been removed by the turbidity removing step is separated into the permeable water B and the concentrated metal C concentrated with the metal component by separation by the reverse osmosis membrane. In the present embodiment, since the reverse osmosis membrane 31 is used, purified water having a very high purity in which the dissolved metal is removed can be obtained. As the permeated water B, the electric conductivity is usually 2 〇〇 uS/cm or less, more preferably 50 or less. Further, as the concentrated water c, the conductivity is usually 3 〇〇〇 15 15 8 / (: 111, preferably 5 〇〇〇 1 〇〇〇〇 0 / (^. In the step, the agricultural fine water C generated by the reverse osmosis membrane step is separated into the phosphate water on the cathode side and the acidic water on the anode side by electrolysis. * The voltage applied during electrolysis is usually 1 〜5 V, preferably 2 to 3 v. The concentrated water C can be sufficiently electrolyzed by the voltage. Further, the time of electrolysis is not particularly limited, and the pH of the alkaline water D is continued to 9 ~14 'The pH of the acidic water E is 1 to 5. 139077.doc -13· 200946462 The metal component contained can be analyzed by making the water D to the pH value. When the acidic water E is the pIi value and the reverse osmosis membrane 31 is washed with the acidic water e, the scale removal and sterilization can be sufficiently performed, and the damage of the reverse osmosis membrane 31 can be suppressed to a low level. In the separation step, 'the alkaline component D obtained from the electrolysis step' is a metal component which is separated by alkali by filtration and precipitated. Specifically, carbon is used. A metal component such as calcium, iron or aluminum precipitated in the state of an inorganic salt such as calcium, magnesium carbonate, iron hydroxide or aluminum hydroxide is separated by the turbidity removing device 20 used in the turbidity removing step. In the above, the alkaline water D and the acidic water E which have passed through the above-described precipitate separation step are supplied to the neutralization tank 6 ,, and the two are mixed and neutralized. Specifically, the alkalinity of the precipitate separation step is passed. The water is supplied to the reverse osmosis membrane 31, and the acidic water E which is the cleaning waste liquid after the reverse osmosis membrane is washed with acid is supplied to the neutralization tank 6 to be neutralized. Further, in the present embodiment, In the middle of the neutralization step, the water G is mixed with the raw water A, and the same treatment is performed again with the raw water A, or discharged to the outside of the system via the backwashing waste storage tank 23. The metal component in the embodiment The water purification treatment device and the contention treatment method are as described above, but the water purification treatment device and the purification treatment method of the metal component-containing water of the present invention are not limited to the above-described embodiments, and can be appropriately designed and changed. In the purification treatment method of the present embodiment, in the neutralization step, as the acidic water E, the cleaning waste 139077.doc •14-200946462 liquid after the reverse osmosis membrane 31 is acid-cleaned is used, but in the present invention, Ro can be made
了利用電解步驟所得之酸性水E 對除濁裝置20進行酸清洗， ^ 於中和步驟中將該清洗廢液用 作酸性水E，又，亦可不趑齋^ 不將電解步驟所得之酸性水E用於清 洗而直接於中和步驟中使用.。 又’本貫施形態之含有令遥士 \ ’至屬成分之水的淨化處琿裝置 中’包括儲存回洗廢液F及φ毛ι卜广 β 夂中和水G之回洗廢液儲存槽23，The turbidity removing device 20 is acid-cleaned by the acidic water E obtained by the electrolysis step, and the cleaning waste liquid is used as the acidic water E in the neutralization step, and the acidic water obtained by the electrolysis step is not used. E is used for cleaning and is used directly in the neutralization step. In addition, the 'conventional application form contains the water in the purification device of the genus', and includes the storage and backwashing waste liquid F, and the storage of the backwashing waste liquid. Slot 23,
但是於本發明中，亦可構成A 再战马不包括回洗廢液儲存槽23，However, in the present invention, it is also possible to constitute an A. The horse does not include the backwashing waste storage tank 23,
而將回洗廢液F及中和切直接排出至系統夕卜。同樣地於 淨化處理方法巾’亦以經由回洗廢㈣存槽加排出至 系統外。 進而，本實施形態之含有金屬成分之水的淨化處理裝置 中’包括作為除濁裝置20之回洗料而儲存除濁處理水之 除濁處理水槽22，但是於本發明中，亦可不具備除濁處理 水槽22’例將濃縮水儲存槽33中所儲存之濃縮水以 酸性水儲存槽46中所儲存之酸性水Ε或淨化水B等作為回 洗用而供給至除濁裝置20。同樣地，於淨化處理方法^ , 亦可不使用除濁處理水而使用濃縮水c或酸性Αε*淨化水 3來回洗除濁裝置20。 【圖式簡單說明】 «1係表示-實施形態之含有金屬之水的淨化處理裝置 及方法之概略流程圖。 【主要元件符號說明】 20 除濁裝置 3〇 逆滲透膜分離裝置 139077.doc -15· 200946462 40 電解裝置 50 析出物分離裝置 139077.docThe backwashing waste liquid F and the neutralization cut are directly discharged to the system. Similarly, the cleaning treatment method is also discharged to the outside of the system via the backwashing (four) storage tank. Further, in the purification processing apparatus for water containing a metal component of the present embodiment, the turbidity-removing treatment tank 22 for storing the turbidity-removed water as the backwashing material of the turbidity removing device 20 is included, but in the present invention, it may not be provided. In the turbid water treatment tank 22', the concentrated water stored in the concentrated water storage tank 33 is supplied to the turbidity removing device 20 as backwashing by the acidic hydrazine or purified water B stored in the acidic water storage tank 46. Similarly, in the purification treatment method, the turbidity removing device 20 may be washed back and forth using the concentrated water c or the acidic Αε* purified water 3 without using the turbidity-treated water. BRIEF DESCRIPTION OF THE DRAWINGS «1 is a schematic flow chart showing a purification processing apparatus and method for metal-containing water according to an embodiment. [Main component symbol description] 20 Turbidity removal device 3〇 Reverse osmosis membrane separation device 139077.doc -15· 200946462 40 Electrolytic device 50 Separation device for separation 139077.doc