SG192789A1 - Compound desalination system - Google Patents

Abstract

complex desalination system (100A) includes a seawater desalination treatment system (3) that filters a seawater (D) using a seawater reverse osmosis membrane device (38), and a5 wastewater treatment system (1) that filters a wastewater (A) having a lower salinity concentration than the seawater (D) using a low-pressure reverse osmosis membrane device (16). In the seawater desalination treatment system (3), fine bubbles are generated in and released from a fine bubble generation part10 (19) into an intake tank (32) in which the seawater (D) taken in is stored, by decompressing a nonpeLuleate water (C) discharged from the low-pressure reverse osmosis membrane device (16) in the wastewater treatment system (1). c7-44-

Description

Client Ref. Ho. PMIOOOEL-POTI-SGI 2031-032635 { DESCRIPTION] {Titie of Invention!

COMPLEX DESALINATION SYSTEM

{ Technical Field) {000%}

The present invention relates to a complex desalination system including a first water treatment system that filters a first raw water of & high salinity concentration with use of 3 reverse osmosis membrane device and a second water treatment 0 system that filters a second raw water of a lower salinity concentration than the first raw water with use of the reverse cemosls membrane device. In the above syatem, the first raw water 1s, for example, seawater, brackish water, or brinewater.

In particular, Lt relates Lo a technology which utilizes a 5 hydraviio energy of the nonpermeais water discharged from the reverse osmosis membrane device of the second walter treatment systemand improves an operation availanility of the first water

Treatment system, fm Ce { Background Art) (G00

Japanese Patent Publication No. 4,481, 345 (hereinafter, referred to as “Patent Document 17) discloses a technology which decreases the driving power eguirsed 07 a pressure pump (corresponding Lo "high-pressure pump’ In this specification)

P5425

Client Ref. No. PMIOGO85-BUTI-50] 20131-032833 in the seawater desalination device desalinating the seawater by filtering with use of the reverse o0smosls membrane device.

The wastewater containing organic matter (hereinafter, referred to as “organic wastewater”) such as sewage 1s processed in ablclogical treatment, and had been usually discharged into an coean or & river, The organic wastewater processed in the plologloal treatment 18 mixed with the seawater taken in by the seawater desalination device to decrease (dilute) the salinity concentration contained in a “water Lo be Lreated” of the seawater desalination device, and the above-mentioned “water to be treated” having diluted salinity concentration 1s pumped to the reverse osmosis membrane device of the seawater desalination device, so that the dyiving power regulred for the prassure pump 1s decreased.

Fs 00a

Further, Japanese Patent Application Publication No. 20010-27424% (hereinatter, referred Lo ag “Patent Document 27) discloses a tsehnoloay generating fine bubbles by pumping and depressurizing alr or fhe like dissolved in water.

Incidentally, in water Lreatment, {fis a well known technology to generate fine bubbles, for example, microbubbles and nanobubbles in the “water to be treated”, allow the fine bubbles to stay yelatlvely long in the “water to be treated”, and decompose the organic matter in the “walter to De Lreated” by

P353425 >

Client Ref. No. PMIODOBL-DOTI-5G1 Z011-032635 a shock wave generated in a process of crush of the fine bubbles. £0004)

Furthermore, Japanese Patent Application Publication No.

HO9-290260 (herslnalter, referred to as “Patent Document 37) discloses a technology sterilizing the “walter Lo he treated”

Dy injecting ozone gas thereinto. {Citation Listh { Patent Literatures]

COO

{ Patent Document 1

Japanese Patent No. 4481345 {| Patent Document 2}

Japanese Patent Application Publication No. Z2010-274243 { Patent Document 3 5 Japaness Fatent Application Publication No. HOS-2902460 { Summary of Invention} { Technical Problem {D006

However, in the technology described in the Patent

Document 1, the pressure in case of using the reverses osmosis membrane device Ln the water treatment process of the organic wastewater 1s lower than Lhe pressure in case of using the reverse 0Smosis membrana device In The warner Lraaliment process of the seawater desalination device. Then, 1t has been sl 2

P35425

Client Ref. Ho. PMIOO085~PCTI-5G1 S0L1-0326835 described Lo decrease the salinity concentration relative to

Che seawater by directly mixing the nonpermeate water discharged fromthe reverse osmosis membrane device in the water treatment system of the organic wastewater with the seawater taken in. Thus, the energy of the nonpermeate water discharged from the reverse 08Smosis membrane device in the watery treatment process of the organic wastewater 1s comparatively low in pressure and wasted without effective utilizations. in addition, there is a problem that the frequency of fouling of a reverse osmosis membrane in the seawater desalination device is increased, because the organic matter in the “water to be treated” is increased by using the organic wastewater to dilute

Lhe seawater.

POO TY TTY

UL

5 The present invention 1s intended to solve the conventional problems described above, and a purpose thereot is to provide a complex desalination system which can effectively utilize the energy of the nonperymeate water of the reverse osmosis membrane device in the complex desalination system and reduce tne fregusncy of the fouling. {Solution to Problem

OO0E

To solve the above problems, a complex desalination systemaccording Lo the present invention includes a first water

P5425

Client Ref. No. PMIOGORL-POTI-SGI ZO11-030635 treatment system that filters a first rawwater of high salinity concentration with use of a first reverse osmosis membrane device, and a second water Treatment system that filters a second raw water of lower salinity concentration than the first 3 raw water with use of a second reverse osmosis membrane device, wherein the first water treatment system comprises a fine bubble generation anit that generates and discharges fine bubbles into the first raw water taken in, by rapidly decompressing a nenparmaate water discharged from the second reverse osmosis 1 membrana device in the sscond water treatment system, {0009

And the fine bubble generation unit 1s preferably configured to include a first piping that connects an outlet of the nonpermaate water of the second reverse osmosis membrana device and a first raw water tank storing the first raw water aren in, a first valve provided on the side of tne first raw water tank of the first piping, and a fine bubble generation part that 1s provided on a downstream side of the first valve of the first piping, and generates and discharges gases disselved In the first raw water as the fine bubbles by rapidly decompressing the nonpermeatse water of the second reverses osmosis membrane device when Inlroducing the nonpermeate water into the first tank. Further, rhe fine bubble generation unit is preferably configured to include a second piping that is “5

P35424

Client Ref. No. PMIOOOEL-POTI-SG1 2011-032635 bifurcated from the first plpling at an upstream position of the first valve and connected Lo the first raw water tank, and a second valve that ls provided on the second piping and regulates a flow rate of the nonpermeate water of the second reverse osmosis membrane device.

POLLO

EERE Uf

Further, the complex desalination system preferably includes an ozone generator that generates ozone gas, wherein an ozone injection portion, through which the ozone gas 0 generated by the ozone generator is injected, is provided on the first piping between the first valve and the fine bubble generation part. (001

Conventionally, 1t has been reguired a power separately

ES to blow conpressaed alr into a raw water for genervating the fine bubbles, or generate dissolved gases as the fine bubbles by rapid decompression. In contrast, according to the present invention, ito 1s possible to generates the tine bubbles sufficiently only by decomprassion of a relatively low pressure of the permeate water discharged fromthe second reverse osmosis membrane device in the second water treatment system, thereby saving power reguired for an operation of the complex desalination system without requiring a new power for generating the line bubbles. fy

PI5425

Client Ref. No. .PMILOO3L-PBOTL-3GI 2311-032635

POnLZ)

Further, it may not be possible to regulate the flow rate of the nonpermeate water discharged from the second reverse osmosis membrane device in the second water treatment system 3 by only flowing total amount of the nonpermeate water discharged from the second reverse 0s5mMosis membrane device in the second walter Treatment system Lo the fine bubbie generation part. Ti contrast, acoording bo the present invention, it is also oessible to regulate the flow rate of the nonpsrmaale watery 1 discharged from the sacond reverse osmosis mexbraneg device by configuring the Tine bubble generation unit to include a second wiping that 1s bifurcated from the first piping at an upstream position of the first valve and connected to the first raw water tank, and a second valve that 1s provided on the second piping 3 and regulates a Tlow rate of the nonpermeats water of the second reverse osmosis membrane device. £0013

Furthermore, according to the present invention, it is possible to generate the fine bubbles including the ozone gas in the fine bubble generation part by including the ozone generator that generates ozone gas in the complex desalination system, and providing the ozone intection portion, through which The orong gas generated by the ozone generator Ls injected, or the first ploing petween the first valve and the fine bubble _7-

PI5425

Client Ref. No PMIOOOBRLG-POTI-SGL Sirimoaanss generation part. And it is possible to obtain not only decomposition of the organic matter by a shock wave generated

Lnoa process of the crush of the fine bubbles hut also sterilization effect Dy the ozone for the “water Lo be treated” including the first raw water. { Advantageous Fiffects of Invention} [00143

According to the present invention, it is possible to provide a complex desalination system which can effectively utilize the energy of the nonpermesate water of the reverse osmosis membrane device in the complex desalination system. {Brief Description of Drawings

Poy tom

ToOMU aT

FIG. 1 is a schematic block diagram of a complex desalination system according to a basic embodiment of the present invention.

FIG. Z is a schematic block diagram of a complex desalination system according to a first embodiment of the present invention.

FIG. 3 is an enlarged explanatory diagram of an X portion in FIG. 2, and an explanatory diagram of a complex desalination system according to a second embodiment which 1s fhe complex desalination system according to the first embodiment further combined with an ozone generator and an ozone injtecbion pump. 8.

P35423

Client Ref. No.PM100085-PCTI-SGI 2011-032635

FIG. 4 is an enlarged explanatory diagram of an X portion in FIG. 2, and an explanatory diagram of a complex desalination system according to a third embodiment which is the complex desalination system according to the first embodiment combined with oa reaction tank, and as complex desalination system according to a fourth embodiment which is the complex dezalination system acoording to the third embodiment further combined with an czone generator and an ozone injection pump. { Description of Embodiments) 0 (0016)

Hereinafter, complex desalination systems according to embodiments of the present invention will be described in detail with reference to accompanying drawings.

LOOT) 18 <<Complex Desalination System of Basic Embodiment >»

First, a complex desalination sysiem 100 according t©o a aslo embodiment of the present inventionwill be described with reference to FIG. 1. FIG. 1 is a schematic block diagram of the complex desalination system 100 according to the basic embodiment. The complex desalination system 100 is designed to be installed in coastal areas, near saltwater lakes, near prackish water zones, or the like. The compound desalination system 100 Ls configured to includes a wasiewaler treatment system {second water Lreatmenty system) 1 which treats “0.

P35425

Client Ref. No, PMIGUOHES-PCTI-80] Z01i-032838 wastewater (second raw water) A (hereinafter, simply referred to as “wastewater AY) such as industrial wastewater and urban wastewater having lower salinity concentration than seawater, brackish water, hrine water, or the like, so as to be reused as recycled wastewater (referred to as “permeate water BY or “product water BY) such as industrial water other than drinking walter, a seawatey desalination treatment sysbem (Lirst water desalination system) 2 which purifies water (first raw water;

D such as seawater, bracklsh water, and brine water having

Hy comparatively high salinity concentration, s¢ as to be reused as recycled wastewater (referred Lo as “permeate water BY or “product water BY) such as industrial water other than drinking water, and a control device § which actuates pumps and valves included in the wastewater treatment system Land the seawater desalination treatment system 3, Hereinafter, “water D such as geaz water, brackish water, and brine water having comparatively high salinity concentration” is referred to as a “seawater DY, and the desalination treatment system for the “seawater DY is referred to as a “seawater desalination 200 treatment system 3” In the same meaning as described above. £0018) <Configuration of Wastewater Treatment System 1»

First, a schematic configuration of the wastewater

Creatment system 1 will be described with referencs to FIG. 1.

P35423 lo.

Client Ref. No.PMIGOOEL-PCTI-841 2011-032035

The wastewater A containing organic matter or the like is introduced from a wastewater intake pipe 51 Lo a water Lreatment device (hereinafter, referred to as “"MBR watery Treatment device 117, and simply indicated as “MBRY in FIG. 1) using, for example, a membrane bioreactor (MBR), and treated primarily. A “water fo be Lreatead” primarily treated at the MBR water Treatment device 11 1s introduced to a treated water tank 13 functioning ae a puiter of Tlow of the “water to be treated” through piping 52 by oa transfer pump 12, and femporari.y stored therein,

Furthermore, “water to pe treated’ stored in the treated water tank 13 is sucked by a supply pump 14 and supplied to a high-pressure pump 12 through a piping 53. Then, the “water

Lo be treated” is boosted up by the high-pressure punp 15 and supplied Lo a supply port 16a of the “water to be treateg” of

IS a low-pressure reverse osmosis membrane device (second reverss osmosis membrane device) 16.

Lo0le

The low-pressure reverse osmosis membrane device 16 1s configured to be arranged with a plurality of membrane module units In parallel as described Tor examDle Ley BITIO TY ompyed A dak, BILE AD Paldilior an aezlrlibad, LOY eXampie, LI Ditsn. J anda # of Japanese Patent Application Fublication No. 2001-149%32.

The “water to be treated” supplied under pressure Irom Lhe supply port 16a is separated Into the permeate water B pura fied vhrewgh the reverse osmosis membrane (RO membrane) and the 35425 i

Client Ref. Wo. PMLIOOORZ-POTI-SG1 AGLI-U226350 nenpermeate water ¢ which is the “water fo be treated” not permeated through the reverse osmosis membrane, in the low-pressure reverse osmosis menbrane device 16. The parmeate walter B is supplied from the permeate port lob through a piping 54 for an external use corresponding to the water quality level as Lhe product water B. {0020}

The nonparmeate water © Ls supplied from an outiel port (outlet of the nenpermeate water of the second reverse osmosis membrane device) J16c of fhe low-pressure reverss Osmosis membrane device 16 through a ploing 56 to the intake tank (first raw water tank) 32 described later. The flow rate on the nonperneate water O Ls regulated Dy a Dack pressure valve 12 provided in the middle of the piping 26. TDS (Totval Dissolved c We PE ; : PE

Solids) of the condensed nonpermeare water of he wastewater treatment system 1 1s about 1,200 mg/l and an extremely low concentration compared with abourn 20,000 ma/l of TDS of the seawater D. Therefore, the low-pressure reverse Osmosis membrane device 16 described above is operated under pressure ranging from 0.8 wo 1.5 MPa. Incidentally, a range of this operation pressurs is Lo lnorease the operation pressure in ovder to obtain the predetermined [iow rate of fhe permeate water B, when fouling of the reverse osmosis membrane of the low-pressure reverse osmosls membrane device 16 increases.

Ji

P35425

Client Ref. No.PMIOGOR5-POT1-SG1 2OR1-03Z635

Then, the pressure of nonpermeate water C is about 0.8 to 1.5

MPa. This pressure 1s released by The back pressure valve 18 described above. An ultrafiltration dsvicemay be used inplace of the MAR water treatment device 1] of the wastewater treatment system 1. In addition, the piping 56 on a downstream side of the back pressure valve 18 may be configured to generate fine bubbles at a stages where the nonpermeate water CO of the

Low-pressure reverse 08mosis membrane device 16 is introduced into the intake tank 22. The detailed configurations will be 16 described from the first embodiment to the fourth embodiment. {0021 <Beawater Desalination Treatment System 3»

Next, a schematic configuration of the seawater desalination treatment gystem 3 will be described with reference to FIG. 1. The seawater I is taken in by the intake pump 31 from an intake pipe 81 and 1s suppliad through the intake pipe 82 £0 the intake tank 32 and stored therein. As described above, sincs the nonpermeate water Cin the wastewater fLreatment system 1 ois supplled Lo fhe intake tank 22 through the piping 56, the seawater D and nonpermeate water Caremixed in the intake tank 37 to become the “water to bea treated” having lower salinity concentration than the seawater. Namely, the value of TDS also pDecomes 4 Lower value Than thal of the seawater DD. The “water to be treated” stored in the Intake tank 32 is supplied through -13-

P33425

Client Rel, No. PMIQOUBL-BUTI-8G1 FHTI-03763% the piping 83 to a pretreatment filtration device 34 under a predetermined pressure applied by the filtration pump 33. The pretreatment filtration device 34 may be, for example, any one of a UF device using Ultra Filrration membrane (UF membranes), an MF device using Micro Filtrarvion membrane (MF membrane), and a sand filtration device. In FIG. 1, “UF” meaning the UF device 8 btyploally shown in the pretreatment filtration device 34, incase of a use of the UF device as Lhe pretreatment filtration device 34, the UF device is ganerally operated at 50 to 150 kPa. {0020}

The “water to be treated” flltered by the pretreatment filtration device 34 is transferred through the piping 84 to a treated water Lank 35 functioning as a buffer of flow of the “water to be treated”, and temporarily stored therein. ‘The 5 “water to be hrested” in the treated water tank 35 is sucked

Ly the supply pump 36 and supplied to the high-pressure pump 37 through the piping 85. The “water to be treated” is boosted up to about 3.9 to 6 MPa for example, and supplied to the supply ocort fa of the “water to be treated” of the seawater reverse osmosis membrane device (First reverse osmosis membrane device) 35. The seawater reverse osmosis membrane device 38 is configured to be arranged, for example, with a plurality of membrane module units in parallel as described In FIGS. 3 anda 4 of Japanese Patent Application Publication No. Z2001-149832.

P3s42s -14-

Client Ref, Ho. PMIOOORE-PCTI-SGL 2011-032655

Since the seawater reverse osmosis membrane device 38 is operated under higher pressure than the low-pressure reverse osmosis membrane device 16, material of the reverse osmosis membrane of The seawater reverse ozmosls membrane device 38 has a performance which can withstand hlcher pressure than the low-pressure reverses osmosis membrane device 16. In addition, it ig designed to increase the operation pressure in order to chtain the predetermined flow rate of the permeate walter B, when the fouling or a vaiuve of ThE of the “water to be treated” to supplied to the reverse 0sSmosis membrane of the seawaler reverse ocemosis membrane device 38 increases. { C023)

The “water to be treated” supplied under pressure from the supply port 28s 1s separated Into the permeates water bB purified through the reverse osmosis membranes, and the nonpermeate water 3 which 1s the “water to be treated” not permeated through the reverse camosis membrane Ln the scawater reverses osmosis membrane device 38. The permeate water BE Ls suppliad from the permeate port 28h through the piping 87 for an external use corresponding to the water quality level as the product water ©. {0024

The non DaErmesate water ou nde rr tne OoEral OT pressure o ‘

Che seawater reverse osmosis membrane device 38 described above

P3545 -15-

Client Rel. No, PHIOLOELE-POTI~3G 2011-032630 is supplied from an outlet port 38c through a piping 89% to a high-pressure supply port 38d of a pressurized end portion 39k described later in an energy recovery device 39. The yg Te res oy Ton roy de gm oe Se be py ee ey en wey ~~ mom 3 ory yr de} bmn My omy de mn ae nonperhcate Wate bo eXChalge; pressure Grad ly wiih The Water tobe rreated” suppliedpressure fromthe supply pump 36. Then, the nonpermaeate water G 1s discharged from an outlet port 3%e of the pressurized end portion 28h under regulation of the flow rate by a back pressure valve 40 provided in the middle of a piping 20. The nonpermeate water GC is the seawater, brackish 0) water, or brine water having concentrated salinity. The energy recovery device 39 1s a device of direct pressure-exchange method in this basic embodiment, and is a well-known device mainly composed of a rotor part 3%a rotationally driven by a moter {not shown) at a predetermined rotation speed, a pressurizing side end portion 38%, and a pressurized side end portion 3%C. £0025)

The piping 91 1s bifurcaved from the piping 85 at a branch point Pl of the piping 85 between the supply pump 34 and fhe 200 high-pressure pump 37. A part of low-pressure “water to be treated” supplledby the supply pump 36 is supplied to the supply port 3% of the pressurized side end portion 3%9c in the energy recovery device 39. After the “water to be treated” supplied to the supply port 3%g is pressurized by dirsct exchange of -16-

P35423

Client Ref. No, PMIOOOBS-PCT]-S0G] Z011-032635 wn mi tm bt Eves vm my gms pe sy gn any de ym de me CAT ep Toy eon my wm be ne pe me gm pressure wiih The Nonpermeatse water G from the seawater reverse

Tr SR Sei pm Mem de ge Ee mpm be peg om de em ed EE Dm ry ede Be ae

OBMCS LE membrane So, Coie Warnell TO De Treataed 1s further yrs 1h med oe om Puy Fes rr pire A rrr eats rdemed pn mem pm coded Toon pe © de beg Do dpe

BURPLIed TO a DOCsSTer DUMmp 4: provicaed Ln Lhe MLAdals of the 0Lolng

G5 Fyom oan ont io 1 ort GE of the mresaurizedd side end oortilion deo IO al oLkv_ial port 2X0 OL Lhe Drel:zsurlizeaed side and portion “ YY vy im do ps tre 7 on on oe Fe on 1am Mop de I. ee L ER 3 39c. The booster pump 41 bpoosts up the “water Lo be treated pen ym 4 hy - "my tp - mE ym Ty Jer A I 1 Ep tren oy nressurized b vVoOLOe anergy racovery device 59 to ne same ny re ms re ga pe me + Fy gm Tov ew by tT TT pe yr ia FT ey on Wry en dee gem Fn I em

Lressure as Lhe Naa hi ressura pumn o3, hes Wo ter To De do on de IE a pn Tee pe C07 mm ed A em Neo ae ee bn de pn a ge ee od PE

Crea ed LITOm The DAIDIndg Mlooand the Wotan TO De treated pr | md beer Ee Tm eb ey TE TC Pe 1a EE

SURD lied b Y The DIghn-0ressurs pump oS are Joined togernner av 0 2 ranch med nt TF mf Fhe mim omer RE rm oa ream at veer 9d ote mE mm a Tanah point ra On Lhe DL0LNAG Zo On a JOwWnsuoeam side on Tne

Fiat epresshre come 37 ard aur] ded fo Fhe sanelv mers 29s sf nidn-praessure pump 27, ana supplied To The Supply Dorit Soda OU

Ine seawater reverse Osmosis membrane device 34,

Srey a

Conia Uy

Thus, as the nonperymaate water GC ol Lhe seawaler reverse - , , R , a . . Co . .

CRETACN ST GO mem rT ane deal oe Potlvom mvt vame ty OTE I 1

CSCS LES Mehorang Qevide oo hal eXXiremery ign praeisurs, LU Ls mim A PT gm dee am wren mond wmv erm bum fm meen moe ie rrr mg bons pe pOsZInle Lo recover and reuse Lhe energy as energy supplying + pel iy oh ] do fn gm Nop de ~ - Te, om £ wm mn de pm md FF hep d= Gey nm meg my - er Er

Fhe “water to De treated’ to the seawater reverse osmosis rene be ne em Sear loro 4 de dey norm bons er mtr vo ey LT pe pm ee de beer mdm ee gm em em membrane device so, Thereny 5aving the Dower COST DY aacreasing otro Torres nF Elm md epee aid ee are 3 Tr da al een verve Sn en de

ChOW SLL LENE Ls Lil iLiad of RTO TLL LNT [He fw Aon AD RL SAY pA I ES Ler 4

Gs vm my nan bs drm] pf Ear pe pg pn de gem de peg ee ED Jem mn msm mn TY Beng pr owe Dope decrease the salinity concentration of the seawater D by mixing alin +) re ep ene de om fT Tm frm oes nts mgm ae A em me pres en de ges pe de pn wilh the nonpermeats walter OC 0 The wastewater freatment 2 Wa Tem iy Lite reny reducing Lhe DO0SU-uUn pressure radial red Dorn the

DLGN-GIesEUre Dump oF TO alDGUl S00 Moa LY Lhe nolpermesate water en ed be ee mrs mb rm ge Toy en od dT va de gd de en ee Dope deen | ony de mn em merge ere 4s

LANG tne segwatel Dare dliutled al approximately The same volume,

P3423

Client Ref. No. PMIOUOES-PCTI-54G1 2UTI-032635 pb Tem de en me ese] ge Deira ho oh ef MTs drs mere of pas willie the required pressure 15 about © MPa in case of only

SEREWA TE AS a resuln, the power Cost Can be also reqguoaen rn pr ye ee pe od dee dm To gn ye EY Am gms ee en pre pe en mm Tm oy dee fo me wg my ee pd em dee be om

COrresponGLng To the pressure decrease. in other words Ue my gy gm en my fer Em mn mn . = em I Ch TE ET PE ETT OE (TY evr be oo em opera ign pressure of the seawaler reverses osmosis membrane = mer de 30 Cn Te debe on de ge oy 1 be oy mm oe gn a ny of Pra 3 device 32 1s higher than the operation pressure of the

Tg a JN gm aod my ben a 1 Im urn 1 a ne Ben am de on

LOWSDIrESSUre raverse Osmosis membrane device Lo, 20 that the py a perp em dor hm my my my pry 2 gm py a de Pp. - dT Jor Ye pm on pn oo de py pr pm ge anergy On the nonpermeate water Gof [ne seawater reverse

ET Er 3 er erie Tm may mrs me A momen TE Gm opned en yen om rn

DEMOS LES Membrane devices 5 oan De racovered and The Oonerat lion on rm pre yy nm Ed Crom mtr my de en pe my ame en orp mg pret re be own on vn en deme 4 wn 2 D3 wont pressure of The seawater reverse Osmosis membrane devios 348 can 1H be decreased.

Cm es {0027

Ten mele Fem fhm Fare Eos wri 10 i de cry dos rrr 1A

Ln aGQrii lon, whe LransieX pump 1.2, The SUuppLy pumo 14, han Fv pv — TRTTER SOIT ES UNL EH Fla tnt akes mums 17 Eres File ratte

Lila DAWN TLoaeS ure dni LD, Ula Lila rs OUmbD Je, whe DLL Dan Lon reer 2R Five civrsrsy our emit de men FS rE ev ye mera es vps 27 Fp pump 32, Lhe IUpDly pump 20, The DIgh-presgurse DumD sf, Che

A on nm gm epee AT) nn eb ey yest ove Sam aE Fh PE Te YT ELF RT Te RE ES et F moostey pump 44, TRE rotor DOrTLon 2¥a OL LLEe energy recovery

Aeutca (ERD 2G rd Fhe Td em mem rE mer moh med Bm Sgn moe mm dm ol devige (mRL) SY, and Ine Like are Integrated Uo De ConneQiced

Ea my a my A de Dp em Pa oo sm A apy IER aE EE ER EEE a a 3 Alam ror we er pny ny en ge Fo pn

CO a oration axis OL an unillusiragureld Qriving motor. #11 marmot pmo lemar a even fps end mb eng Semper ard we —_— Lop fbn dye dour Dvn prs pe de inverter devia (MoT SHOWN) Supplying oower C0 The dyiving moioy

Se dimeaetal led soa oa Teen] ovimres ome Spider al ar md medal deem be

LE Installed as oo Local panel or nie ral iy stiadched TO Lies 24) Qrivindg moUor, nen, tng control device © Ls coniigurea Lo control the rortatinn of the driving motor throvoh the inverter

CONTIroL The Yo alt lon OL Lhe Arriving mousy through the wnvertel.

Coen a voli

SALONLIGL evils os 0 en a Homma i mE rer ey Dev Res evr ped clear ee fd gm

Next, Aa summary Yoo COonurol on he control device oH in Lhe 3 1 8R-

P35425

Nd de Th gm a Srey oo

Client Rei. No .PMIOCOEL-POTI-S5GL AOL I-032635

PE. Te 14 Che rd TT Yam edn en ge ge be pe Te mdm nT lem Seem Ee asic embodiment will be described. The control device 6 1s r

Eom mr prem og pm enema mE om pn Tam od dar mE eye pen aye bem 0} on

LOY eXxamoie, Composed OL a DLUrallity ol Control units ou, Gio,

Fe To ca wp de pgm] a) £0 CL en me mar edad rd eo

Good, Fach of the control units ©0, 61, ©3 15 provided with a

FUIATT mp ved 5 pre] raed vee qr Ter amde ym oem ped OTD THO ERY ned pee 4

OP board includin Goan iiustraned oF UJ , =O M4 ’ RAM , i nd the like ’ 3 1/0 interface board and the like TE is so conficoured that . LAV Aner lale DOoard, and Loe LLKe. LC 1s BO Connidgurec Uhat the ema] ond AD memes tae oan 1h Mle Amor aE does AEE Re meyers bos

Che COnTYol Unii ou CONUYols a4 whole cperatlon ol the complex fine TL mE oe erepend men bn pm mgm em Tram dE pee damm | en Joy em desalination svatem Luu, the control unit ol controls the gon gm be mow ma em An mom oy r ronan i oven | mow pg be mn em rn ae sas Ae fn mr Eo em To wastewater treatment system 1, and tne control unit bs controls

Sob en pm mg my de gmp dem en om do gm me dm pn rm mtr en home 3 Pr on my En TET

Lhe seawalal desalination Treatment sysnem Js. Lhererorsa, tne ony om qe Ae pe em Trey on A C0 3m eer Tv em eo Fem rd erp tr pu sw my be J np de pre be Je em ew pee por ee 3 apn on Ee pm 10 control unit 60 is connected communicably to the control units oo £3 with ame mre I me Them evr tore aims be] Tyrese Tried er om FO evr

Thy D3 WILLD One anoiher. Phen COD IOL WITIL TL OL Li Ludes oa LD LIOW wn Ee mem | my pe ny een me Yam Fa py phe oe pn am ny we Ebon de coment 1m do oe rate control part (not snown? as a funchion oar that ro gulates

ETE ay Cen ie on ed Ee Te gm SP See EU ep me ns 4 LaOW rate Oo Lhe nonpermnegate wate oo DY regulating an onehn lg ms pe bem Be ee an on i vn we ron eye TO

Eres OL Une DaCK Dresses valve lo. & Doo 002%

Te ee om ae oe LY Ea ey - I. 3 Jemma pon dm Sen pene dem ed

Tne control unit 60 of the control device 6 ls inputted

Fogger mm mando d fm af En wmv 4 ramet FO] mer pm ben peered rede 0 M7 mE Ee

TOM Tne GULSLOe WILD redulred TLOow rate Commandags Li, La OL Une nyo Fyn pon oo eo 3 wry pe od FEgH oy ye gg ye Copy em ial 3 em ion en pms ime emp Tm roduc water Bo oand Lhe Lrotuct water oh Hy rhe Comp iax

HAeaalinatrtinn avastom TOD Frwy mw amr |e I =a EE eR EE EE T= esa l ination system Lub, POD eXamb le, Lhe COonTroL unin ol Sets

PT fe ET amen gem om ee EE em pen terre pm me 0 ee EE bmn eg ope de peg me a Target Liow rate oI the permeate water BF ol the wastewater

Sm em my ny pre et Co. I mw Ge en py my i be peg oy de PR wp a de po pn be wp on de pp

Lreatnent SysTem L and Controls The wastewater Ureaimeant syasieaem

Tobby The control unity eal oon the bhaoio oF on Flow vate oF hae ph Sd iointz Allan DA) laa lho. Lhd LAL Lab iu Sed UATE LE I LFA A Loo Lod Le LE iil

LEE mT amt Tm oY Satyr tansy toy ve waa bog aror Prost ment aap baer = end wom LSwWa Lal Supplied LO Lhe Wah oowWdoeD Locale SY IZLel 4 now ey de gn Em pie rn ed rr mn ET pre we on fe gm ow gm ye toy es C0 pd ye ge be pn ped md ot em lm rate detedled DV oa Low rate Sensory oi descriped later) and a -19-

P5425

SU en Dm x BRAT TO EL TT Cen SOT TT

Client Ref. No, PMISGLEL-POTI-541 2O1I-032655 o = de LE . bn ye me To Fe Dr bo om de od Be flow rate of the permeate water B (flow rate detected by the

Fl mg vate oonany S96 Aoooriihed Jaro Vo meter et ary ern nr tiny bm

Dew rats senzor oo dezolliDbed lave, LN a4QOOorGaanoe With TNS vena rend Fone vm eminem ed 00] Sort he Phim ren Eee bam ts redulred Low rave commana OL. Further, The COnvIol uanii ol vm ler ome nen Fem we do AR ney de pm em Be Be one pr gm my A po de pn I £4 yn caLtuLates a Largel Low rate OL The permsa te water kb on The a Cem om nT Ten re Fm oy Do vm de Foe my mb my A + 2 = —— be . 3 seawater desalination treatment system 3 and controls the on oy rary de ee 3 ov Tope omy ey hoe ee prey iy ony ny ho me meen Tn A= Te a my te pm pn] . de seawater desalination treatment 3s vatem 3 DY The COnTro 1 unit

FA ry mere es wg BE bye = ry el

D3 Ln acoordanCs WLU Une redqulre dd flow rate command OF.

Come TTA

LoL DA

Thy en ror emer be Dm om Tem md pm ET her remem mmr pdm ed rad de dey be dm ET er ine wastewater intakes pipe 21 1g provide with The fT1low 10 rato ooanamy S07 dotoact ire 2 Flow rate of the waotroawatary A The

Dail Ens 00 op Gene 1nd a4 D1 0W Cate OL The Wahiawa oan A. LI pw gp ame A “er mv TT hd en ed rr Ae be ioe Jo om eT err a mm em mm py Ln pr er A fe an] me pm pede gm ee

DIpLNG 24 1S provided wiih thie DLIOW Yates Sensor Hp aeledi ing

NE ET oy . Gem FY veg pombe FF

Gg LLOW rate OI Ne permeate water Bb. Then , Lhe Tiwana or se gm am mob mem rm To mend bm EF ems wen boon pe Db be en pe wera on de on ta be gn TT re geo

The Wastewater 4 and Tne [Low race of Tne permeate waiter B are

Dmg bm dE mete Tran ered em Tsar ET we Rds rear bow tse Lb 0

LIER ere LEAL Le SOoOnTrol Libln Urb ols Les OTT NG iE) iid, g Toon mdrd 1 mn Fm pnd vd mes DT 1 pms 4 done] rgd bbe om EY gs wed mo mm ee pe 15 LTT AGULU LON, Lhe RLPDING J7 LS RroviIQed wilh a T.i0w rate sensor

TY pet mm mr Tm FT pes wom bm FE an pus eres Abe ram ese Tomlin £7 es

SoU detecting the Tlow rate of tne permeate water Band Lhe flow rate oi the permeate waiter 18 inputied to the control uanat

EY eo pane dm an pent open 1 em dE

Su LNTougn The CONLIol unis oi.

Povdy Te

LoS SLT

Tile BATTED tas tent oegm eores rb rdgnrd vpn TT 4 en wma pmer 4 pdm ed rgd de be £m 20 I'he MBR water treatment device 11 1s GTO LOE WITH, ov ap Ve rm dome Tomar gn on ol ri pm pn Tamm te ET mgm tee mT example, a water level genser 52. The control anit ol controls otrart and arom of the Prana for mummy 17 hagoe on 5 war or avo

CR Lom LL krill Sy hand LAL Loran Lalas LORD LD nda LL RADE FON a wale Level

De TE epg ie en gan de mae ew Tp pe gm pee £20 Te ne ee de node ge dem pe

SLUnal IXOMm The watal Level San3010 oo. Sire Deseo Wailer TanR

TR i prey 4 ded rp Ae Ey yer ew ~ moray bo Toners ony ye orn pry en TD FY hy

LS LE provided wali, DOr example, & wale Level Sensor 5. Lhe

P33425

Client Ref. No.PMIGLOBL-PUTI-SG] 011-032635 control unit 61 controls a start and stop of the supply pump 14 and a rotation speed of the supply pump 14 in operation on the basis of a water level signal of the water level sansor 57 and a pressure signal from a pressure sensor $4 provided in the piping 53 on the suction side of the high-pressure pump 15. The control of the rotation speed of the supply pump 14 based on the pressure signal from the pressures sensor 54 Lg performed

Ln order to apply a predetermined suction prassure Lo the high-pressure pump 15.

Hf 0032:

The control unit 61 controls the rotation speed of Che high-pressure pump 15 830 that the flow rate of the parmeate water

Becomes the target flow rate thereof lnputted from the control

Caw de ET mame Regn momo doen eof we bem EY ema am dpm gm A ge on on ET be be ye in ger gn ny

LNAIT ow On the Danis Oo Une DIoW rate sidnal ol Lhe permeate [5 water B from the flow rate sensor S56 provided in the piping 54.

Then, the control unit 8&1 performs the feedback control of the rotation speed of the high-pressure pump 13 so that the {low rate signal becomes constant on the basis of the flowrate signal from the flow rate sensor 85% provided in the ocining 53 on the

Lodo hanitodarm LL bew Dm Ln neriinis dl Dg RSL Laden Snr Lie Bl k2 LoL 3 wt et RAR Lhe 20 discharge side of the high-pressure pump 15. In addition, the feedback control of the rotation speed of the nigh-preasure pump by the control unit 61 1g appropriately corrected based on the deviation between the flow rate signal of Lhe permeate watery

Boand the target fiow rate Of fhe permeate water 5.

P3S425 2h

Client Ref. No PMLOODBL-POTI-S0G0 S0L1-032635 { C033;

The piping 6 is provided with a flow rate sensor 57 dervecting a flow rate of the nonpsrmeate water U of the

Low-prassure reverses osmosis membranes device 16. The above flow rate control part of the control unit 81 controls the open degree of the backpressure valve 12 basedon the flowrate signal from the flow rate sensor 57 s0 that a flow rate of the nonpermneate water C becomes a constant rate relative to the flow rate shown by the flow rate sensor 55 of the “water to be treated”. {0034

The intake pips 82 is provided with a flow rate sensor 511 and the Intake tank 32 ls provided with a watery level sensor 512. The control unit 3 controls a start and stop of the intake pump 31 based on the water level signal from the water level sensor 512, sets a target intake flow rate of the seawater D based on the flow rete of the nonpermeate water OC discharged from the wastewater treatment system I fo the intake tank 32, and controls the rotation speed of the intake pump 31 based on a flow rate signal from the flow rate sensor S11. For example, in a case where the flow rate of the nonpermeate water OC and an intake fiow rate of the seawater D are almost the same and the salinloy concentration lg decreased by mixing the seawarar

Dand the nonpermeate water Cin the Intake tank 32, the operation

PA5424 oe

Client Ref. Ho PMIOOOHRLE-POTI-SG1 Z011-032635% ne mm ons vs en Ed Je moa my mde str mse me oe PRs Lo Ym pon pe gd mem EAT mo we pressure OI the seawater reverses osmosis membrane device 38 can

I cm A om a eed Fo I cde mgd 3 Fn dee A RAT

De maintained, oY examo.le, at anDout 2.2 to 4 MPa.

CL 3D

FEY fe ny gro gn Ae ge oD Cm 4 oo a pr gy Be pen Eo on x de om qe J gob ~ + yom

The control unit 62 controls a start and stop of the

ET bm Sey prep 22 mma mr FR amber 1 emrre lm ~ 7 OF co ngs 2 cAltration oump 3 based on the watery level 331 dnas LYOM a waler 1 ere | me EST A vp elem dS en de me dd nro de Gen Le IE pe ede To level sensor 814 provided in Lhe Lrearved wale tank 25, Controls pm mm bm be Ey mem el eT A de C5 Tym hme er 3 fom eg \ the TOTAL LON seed OF eG PLL ration LVAD J Tn ner I] pr en led gn rnd pened pt md 4 ern crmimened mer mad ary Eves FT pre ambos od ems A perm

CredauelMmingd rotation Snead Daaed on whe TLOW rate 51 Lefloxd LEON ime FY rig womb amr amr ST pa rr 4 md dn Ems ee o re en EE he LOW YATES Sensor ols Dov dad in the BLELnGg 5 4 y PUMPS The 3 NX oy de en mee ey een em bo pre pom, een den od FED den Ge ee en de wy Lr pm ee - * TET de pen de Be ny ip or, fe mom me mim pe go den water to be treated” in the intake tank 37 to the pretreatment

Filtration device 234 under a mredetoermi nen prego re wer Forme

Prltratlion device 34 under a predetermined pressure, performs po ~ over Woy mort Sricd at oema the orimara iy Frente a Mg he pe ae oo PINAY Lreasinent, anc Stared Una prlmarl ly Treated Wa Tel o Tm pm de ee mo od BE eae Te br my bo eb gym de en de em pe Le TET

TO De treated in The Tresved waver ann sn.

Soy

ORDO

. Tre ede By wr owe fe Tem emmy Boye en 1 ven a de §0 TE hope boa oy md om web rn ed i en, ] 5 DurLhermors, LAS CONLIOL Unit ol COonLrols a start ang stow

ET J Tas wemaqrriem EE mmm dE mem wee dm ie — J I © pen

GI The SUPPLY DUmD do ana Une rotation sheaed OL ThE supnl YOmAmD us PR To ne ce oT amd Yen pn fs wn em oo [2 rt mere To . nen gn

OLD Operation naseld on Lhe pressures sidnal Iron Lhe pressure k b oem me DIL per rt med dpm es Doh em ee DEEL I PPT SN odd £ sensor 51% provided in the piping 85 on the suction side of the

J bo) ]

Tod rb ms yt ve Tye L3T Te pn mem pen Tm dm un peed mde 3 eg rpms ode EF

RILgnD-presiure pump oo i. The control of the rotation speed of 4 “5 Ys veya TET ye nF Fen pre er 1 ven on rrr TE peers fb an ye re cn yy ve 20 Lhe supply DumD Jo based on the pressure sidanal Drom Lhe pressure om CEE fee Ce ee Dn edn pe 1 - em pm Co sensor Sih 1s performed 1n order to a DOLLY da Dredevermlned mrad Den prem entre Es dem idem Fr sworn ax xh ess pire 2

SUCTION pressure Uo Lhe NIgn-—prassure pump 5/7. 0aaTy ine CONLICL Unit bl regulates tne rotation spoeds on Lhe 3 ~y -23-

P35425

Client Rel. No. .PMLOOOSE-PCTI-SG1 20LE-032635 supply pump 26, high-pressure pump 37, and the booster pump 41 so that the flow rate of the permeate watery F becomes the targer flow rate thereol inputted from the control unit 60 based on a flow rate signal of the permeates water £ from the flow rate 3 sensor 520 provided in the piping 87. Then, the control unit 63 performs the feedback control of the rotation speed of the high-pressure pump 37 and the booster pump 41 so that the flow rate signal becomes constant on the basis of the flow rate signal from the fiow rate sensor 216 provided in the pleing 26 on the aiscnarge side of the high-pressure pump 37 and the booster pump 41. In addition, the feedback control of the rotation speed of the high-pressure pump 37 and the booster pump 41 by the control unit 63 1s appropriately corrected based on the deviation petween the [iow rate signal of the permeate water

E and the target flow rate of the permeates water BE, (00a;

The piping 89% is provided with a flow rate sensor 519 mt met Arey oa Fl mn rato em mm mee Ten mt en mrom doemoae FT em EE de emmy on em

Gaetelilind a TOW Date OF The nonpermneate Wate » OL Uhe seawater reverse osmosis membrane device 38. The control unit 63 controls an open degree of the back pressure valve 40 so that the flow rate of the nonpermeats water GC becomes a constant rate relative to the flow rate shown by a flow rate sensor 516 of the “water 10 be treated”, {0039 p3542s

Client Ref. No.PMIOODEL-POTI-5G1 200 1-032635

Te ER mm Flom rem Lew desl ination auvstam 00 of

Lt LNlS mahnhel, Che ComnpleX desalination system [Uw OF

Fs boy en do empl ed dpm de pe em oe de bn mem ome mh mae TN bm Lepr en ego dd = the basic embodiment mixes the seawater taken in with the nonperneale Wo lan i» DA Che LOW re SB Ie Ie se OSBMOS LS membrana oevice 1b gilschargs 4d from the wastewater treabment ger pave [NE My my eo I - ~ PH en ee i om om pm Ae gm

J system | Lo be the water Oo De treated in the seawater

Aesalination gystem 3 Then “he salinity concentration of the

Aesdlinatlon system 5, SNnen Tne salliicy Concentra Lon OL Lng

Von bom do brn orem mde med TT 4 be bm mem ong on dr ema lemon on TD pm be 3 pen mpm 4 gm F oe water To pe treated Ln ohne seawater desalination s Yavem sooan mem medineemed A meng ym 1 OF Ethan arm bpd bag separ bem Ee eng om A de be be reduced to abou half of the salinity concentration of the gy ng oy de a ge TTL mm Lemme 4 we Th pny on my A pn pm Fd a pe A on de od ee am 2 en dd seawater I taken in. 'ererarae, 10 15 poISsiDiae TO decrease the 1H) DEReran Lon pressure Lor operalling Ihe Seawaltléry reverse osmosig wr rs ra be wn mm em Rwy my dE my pees oe a. mye ed rm boy mm bes CoB np ney th yy od menhranes devioe Jo Largely compared wilh about © MPa re faired

Fon tm Fh per TE eres morn sae en bos Fm ent mm Tr A er A um rng ve pe i 2

POL Loesal ind 1UlUs seawalel OLhlyY, Lhcledy Saving Lhe Dowel COB.

Sm Any

CUS)

CNT LYST RIMDOGLmente 5 I pe dee wn ma ppm ye pe cond pm en Ta pe de 4 pe ye een Ae TANI Tm err ve Ew me de pn de be

ES NEXT, a4 COMPiaXx Oazalinat ion System Luk aC0ordindg To The

Foot end id nb ey FT dee ge pam gn gy 2 rd TT hmm oem en pen dem due

Prost empodiment of the present tnvention will be described with rn AE gps Ae ETT “3 wT Tham om eretiparaat doen nT ele mld mere more eo reverence TO rls. a. Ells. £0 15 4 schematic DIOCK diagram on do Fay Sern 3m ne Am mn To my eo pee Goong en Fone smo em eR en oy $m Jy GS a ge de

Tone comp ieX Jesalinagilion Sy snam aCCOraing TO es Tre cure k Phorm; ~ i= by en py wn gm a Tor rey To ToT verre) = Tomo np emo Iment Oh Lhe CIE Ren LIVEN T LON. ALTGUON = Ina smao 70 popper me mr mF Fe mere me dma a ld ma a carat mm TOR mf be “ CONTLOUIaTiIon CF The COmpled Jesal inaiion s vaoLam Luus OL Lhe amy pe - 1 3 = my re oe 4 on fy ee he do dec TT or 4 ov i pny ao fe fe rn 1 ~ resent embodiment 18 substantial l Yooh hae same as the complex

CEES AL LNAn Lon SVs Tem LUY On The aslo empodiment sahiown Ln o»oiis. 4 imeem mor oid FF memory for wg dor Fhe seven ioe ryt bf doer a elede ed

ES iit lon ale ladda iis Ll wold diy Lili Clu Ln Willis 0 Lh adllllerid

Crd de es men rn ede er wm od mm erry em pg Ae © eo eT ~ ap

Wit some runctions, and as shown in x portion in Fis, 2 yr al

P35425

Client Ref. No. PMIGGOEL-POTI-500 SUOTI-032653% ranch Teint BE AF fhe miming BE An fhe odide oF rhe dnt ale 4a Dranch point > oOo the PLpLnhg 20 on The Side OI Une 1niake bom le TE bm ped wm dm EL en ed AT pm gm my pd ae NE RT Em be md pm der

Tank ZZ, the nlping das bifurcated to apiping DV (flrst piping) and a maiming BE socondg miming) Somresasure reducing va lve

Ah ad PALL Do SoCona LDL), a pressure TeCucClnhid valve

Fires valve) 17 ia mrovided an the mining 57 4 OTreaSsnre Sensor

Lirst valve LOLS PrOVIGea CN Lhe PIpIng D4, a pressure sensoln — a we rn ae oy de fe Em gt qe a go . oem rip oq A on Gen vm ya 2 2 { Line Duphia generation pressures detection unit) » Y ois provide ~ Fla rnd nd pees ETT Cen edema ee de peg odd cord mE mn Tera dade doo on Loe piping 7 on the aownstream side, and & Line ouphle

Solera ion Dari LY 15 provioed on Lhe oul iar ooritlion OF Tne 2 dm CM nin be eyed Tan Tossa born tn de em ve mete em 4 my on Dvn aie dn dm Tee ie aan

DIDLING 2/7 DOSLTIoned Delow the wale S3uriqace Ln the intake Tank ri ¥ ay ond dh Ae den pm dow dope DLE 4 en om tr lem] gd Ee am bmn em le pe I. 3a. iacadadition, the piping 5d 18 provided wilh & Dack pressures

I cro Torre secon value) 18 Fh pn ATA ven Tia le Tom eren prem veo boa mr pom ee 0 . Vall Ve LL EBeCOona Va lve) LG. [he Tins bubble dJeneyation Tart Li ny es cn mm be _ ey a Ae um de me md ET £m oY

OeCoOmpraesses Tne nonpermaeae Waller Le raplaly LOM [5]

EEE he PE Tn 1 TE Nonreaaiire crn dm ym Five rma; oa as box exe 4 bye predelermnlned prazsure, S80 UnNat The gazes dissolved in The a. on rr nr de emote 00 mgm remy en vem de med me Ed em demas ded omen VE em fd den nonpermeate Walar Lo are generated as ring oHubbles JUD of The sizes of the microbubbles and The nanobubbles and releassen TnTo

DA Zens GL The MLCroDuUDD les and Lhe DanoupD lel and released INTO = Ge fe ANN ye dee ede en ee de mm en de mE AE pe ge eee A ee mn ee ee ey

I5 TNE Water D0 De Treavad An Une Intade Tank sg.

PO AT

{047 [A Been pdm dome DTT [SE Foes rem tri pa mdm me wren Torres 13

Here, he ProAng Hf, D5, he pressure reducing vaive Lg,

AE 3 : dl x 5 FE A oo ER hs by 30d St aE -E t = sory rt oR den Foe TEA Len emia at oor Tha Tr

Che Dac Dressure valve Lo, and Tine ine buble generation part rp Ete oe YUE Da Ten Je poe pm a A an an pe de FET pn me Te pr 1 19 correspond to a “Hine bubble generation unit” described in 200 claims.

FE et {ou 0423

Cen ede 4 mp on ee 4 by on pen de en ae dd er ff 0) em Ed be gm pm be am en od ener Sg

PUACT IONS OF Che CONTICL Bnils ou, oo Of The CONUYol devios

Go aCooraing Uo Lhe resent Smbodiment are Lng Sale as tne functions of tne control units bl, 63 of tne control device §

Dh

P3545

Client Ref. No. PMIOOURE-PUTL-BGI 2O0T1-032635 in the complex desalination system 100 according to the hasic f 3 ambodiment. Although a function of the control unit 61 of the conbroel device oo In the present embodiment is substantially the same as the control unit £1 of the control device & in the complex desalination system 100, there are differences in which a flow rate control part (not shown) as the function part thereof regulates the flow rate of the nonparmeaie water OU hy regulating rhe open degree of Lhe back pressure valve LH, and has a control function of fhe fine bubbles generation at the {ine bubble generation part 19. A duplicated description will be omitted by designating the same reference numerals Ln Che same configuration as the compiex desalination system 100, and a duplicated description will be also omitted in the same control function as the control device & in the basic embodiment. 10043

The [low rate oontrol part as the above-mentioned

Tanction part of the control unit 21 in The present invention regulates the open degrees of the pressure reducing valve 17 based on the pressure signal from the pressure sensor 59, 26 decompresses the nonpermeate water © to a pressure suitable for generating the fine bubbles 105, for example, 0.5 MPa, and supplies the decompressed nonpermeate water C to the fine bubble generation part 19. Further, the above-mentioned [low rate control part of the control unit el regulates the open degree

P35423 =

Client Ref. No .PMIGOURBL-POTI-SGT 2011-032635 of the back pressure valve 18 based on the flow rate sional of the flow rate sensor (fiow rate detection unit) 57 so that the flow rate of the nonpermeate water C becomes a constant rate relative to the flow rate shown by the flow rate sensor 85 of the “water to be treated”. {0044

According to the present embodiment, since fhe seawater desalination treatment system 3 uses the pretreatment filtration device 24 such as a UF membrane device, an MEF membrane filtration device 34 such as a UF membrane device, an ME membrane 1 device, and a sand filtration device as a preceding Treatment of the seawater reverse osmosis membrane device 3%, it is possible Lo process Lo remove the organic matter contained in the nonpermsate water O and the seawater DD. In particular, since Loe nonpermeats water © contains the organic matier more 13 than double of that in the seawater [, the organic matter can

De efficiently removed. In addition, the seawater D taken in may contaln a large amount of organic matter and microorgant sms depending on marine area or season, and normally contains the crganic matter metabolized by the microorganisms. 200 10045}

Ther, by regulating the open degree of the pressure reducing valve 17 by the above-mentioned flow control part of the control unit 61 and introducing Lhe nonpermneate water 0 into ie hee | . FI Ee be lo om ene re ma ma FI FA -., ro iq pe po i Ie} FE " i BOA EY

Che intake Lae J. UO Qecompress tne pressure U.o 6 LD. 2 MPa

PIsS425 =

Client Red. No. PMIODOHS-POT1-8G1 FO11-0730635 of the nonpermeate water C To a pressure, for example, 0.05 MPa ragquired for generating the fine bubbles 105 at the fine bubble generation part 19, 11 is possible to release the nonpermeats water O containing the fine bubbles 105 into the intake tank 3Z without requiring any power. Further, since the pressure of the nonpermeate water C varies depending on the operation pressure of the low-pressure reverse osmosis membrane device 16, there is a case in which all of a predetermined flow rate of the nonpermeate water C cannot be released to Lhe intake tank 1G 32 through the piping 57 only by regulating the open degrees of the pressure raducing valve 17. If the operation pressure of the low-pressure reverss osmosis membrane device 16 1s high, the anpove-menticoned flow control part of the control unlit 61 pericrms the feedback control of the open degree of the back pressure valve 18 so that the flow rate shown by the flow rate sensor 37 eguals To a target flow rate of the nonpermeate watery

C. As a vesult, the generation control of the fine bubbles 105 hy the above-mentioned flow control part of the control unit £1 does not cause any external disturbance to a processing amount of the wastewater treatment systam 1.

P0048}

Further, by releasing the fine bubbles 103, i.e., the microbubbles and the nancbubbles from the fine bubble generation part 19 into the intake tank 32, lL is possible to 2G

P334725

Client Red. Nol PMIOOOAR-DOTI-307 Co decompose the organic matter in the intake tank 32 by the shock wave generated at Lhe fime of crush of the fine bubbles 105, and generate radicals to facilitate the decomposition of the organic matter. Therefore, clogging of the pretreatment filtration device 34 is decreased and a treatment amount of the “water to be treated” increases pelore a backwash of the prevrestment filtration device 34 ls necessary. In other words, it is possible to increase the time until the backwash of the pretreatment filtration device 34 is necessary, thereby improving an operation availabilivy of the corplex desalination system 100A. Although the organic matter in the “water to be treated” increases Dy using the wastewater A as The organic wastewater for dilution of the seawater D, it la possible to decrease the freguency of the fouling of the reverse osmosis

ES membrana of the seawater reverse osmosis membrane device 38 in the seawater desalination treatment system I, because nhe crganic matter is decomposed by the fine bubbles 105, £0047) << Second Embodiments:

Next, a complex desalination system LOGE according to a second embodiment. will be described with reference to FIGS. 2 ard 3. FIG. is anenlarged explanatory diagram of an X portion in FIG. 2, and an explanatory diagram of a complex desalination system according to the second embodiment which 13 the complex -30-

P3423

Client Ref. No. PMIOOUR5-PUTI-541 Z013-032035 3 ay 2 a . Fm ev - mae dS ee do pm or Jn AT a Ge . Too sm pd ween pny ge dee 4. i. pe desalination system acoording to the first embodiment further comblned with an ozone generator and an ozone injaction pump.

The complex desalination system 100B according to the second empodiment 1g different from the complex desalination system 100A according to the first embodiment in that, as shown in FIG,

Jas the Xporvion in FIG. 2, an ozone generator 45 and an ozone injection pump 46 are further provided, and the ozone gas generated by the ozone generator 45 1s injected through an ozone injection portion P11 disposed on the piping 57 and dissolved nto the noppermeate water O which 1s decompressed Lo the above-mentioned predetermined pressure by the pressure reducing valve 17. Further, the complex desalination system 1008 is different from the complex desalination system 100A in tnat the control device © in the second anbodiment is added with a function of controlling Lhe ozone generator 45 and The ozone injection punp 46 to the control unit 63 oF the control device 6 in the first embodiment.

Poo4s;

The function of the control unit 63 in the second embodiment is different from the function of the control unit 63 in the first embodiment only in that the control unit £3 in the second embodiment 13 configured Lo newly include an ozone

Town eh mh ew on pp de pe en ys, oy pe Lop pe Ae oo de per ren X Pa fo em ET ge de Dae pr re AT for doar JAR. LA AIRE eR a sd Bau Laid iilaWlLY cian LIE a iain LL aaa Lo OL fhe control unit ©3 in the complex desalination system 100 according “3-

P5425

Client Ref. No.PM100085-PCTI-9G1 AULLmUS2ES to the basic embodiment. Then, the above-mentioned ozone intection control part of the control unit controls Lhe ozone generator 45 so as to generate the ozone gas corresponding to the target flow rate of The nonpermeats water {, and injects the generated ozone gas through the ozone injection portion P11 by controlling the rotation speed of the ozone injection pump 46 In response to The generation amount of the ozone gas.

P0049 hAocoording to the praesent embodiment, the fine bubbles 105 has an effect of sterilizing the “water to be treated” in the intake tank 3¢ because it contains the ozone, 0050) <<Third and Fourth Embodiments»

Next, the complex desalination systems 100C, 100D according to a third and fourth embodiments will be described with relerence to FIGS. 2 and 4. FIZ. 4 1s an enlarged explanatory diagram of an X portion in FIG, 2, and an explanatory diagram of a complex Gesalination system according to the third embodiment which 1s the complex desalination system according to the first embodiment combined with a reaction tank, and a complex desalination system according to a fourth embodiment which 1s the complex desalination system according to the third embodiment further combined with an ozone generator and an ozone injection Dunn. -32.

P3425

Client Ref. No.PMLOUGES-PCTI-5G1 ~011-032635 <Third Embodiment>

First, the complex desalination system 100C according to the third embodiment will be described. The complex desalination system 1000 according to the third embodiment is different from the complex desalination system 100A according to the first embodiment in that, as shown in FIG. 4 as the X portion in FIG. 2, a reaction tank (first raw water tank) 47 is disposed at a preceding stage of the intake tank 32, and the fine bubble generation part 1% as the outlet portion of the 1G piping 57 and the outlet of the piping 538 are disposed as with the first embodiment ina first compartment 470 of the reaction tae le ATT ory od ar omit Lod Uk oat Fhe vraeart ion tank ATF oe SAA emmeede Yoas rank 47, Ano pot GIT Le win OF UI er realT Ion tank 4d Aer he ee ee in communication with the intake tank 32. Then, the control device 4 in the first embodiment 1s used as the control device 6 inn the present embodiment. In the present embodiment, the reaction tank 47 corresponds to a “first raw water tank” described in claims.

Corso

UMD

The reaction tank 47 is divided into a plurality of 200 compartments (partitioned compartments) 47c,, 47¢., 47c., and 47c. py oa plurality of partition plates 47a and 47h. The partition plate 47a has a communication passage between Ligself and the bottom of the reaction tank 47, and the partition plate 470 1s configursd to have the lower portion connected to the 33.

P35425

Client Ref, No, PMLOGOEDS-PCTI-5G1 2811-032635 bottom of the reaction tank 47 and the upper portion which allows the “water to De Lreated” te move beyond the upper portion and be communicated with a neighboring compartment. The partition pilates 47a, 47b are configured to be arranged so rhat the flow direction of the “water Lo be treated” is changed alternately in the vertical direction as shown by arrows ¥Y in IG. 4. The “water to pe treated” flows Lnto the intake tank 32 through the outlet 96 from the last compartment 47c, as shown by an arrow

Zoin FIG. 4. 16 (0052)

By providing the reaction tank 47 at the preceding stage of the intake tank 32 in this manner, mixing of the fine bubbles 105 and the “water To be ILreated” ls facilitated, and decompogition of the organic matter by the fine bubbles 105 is facilitated. {0053 <Fourth Embodiment

Next, the complex desalination system 1000 according to the fourth embodiment will be described. The complex desalination syatem 1000 according to the fourth embodiment 1s the complex desalination system 100C according to the third embodiment which ls added with The ozone generator 45 and the crone Lntectlion pump 406 shown by dashed lines In FIG. 4, and controlled by Lhe above-mentioned orone indection control pars ~34-

PAS42S

Client Ref. No.PMLO0OHL-POTI-8G1 a of the control unit 63 of the control device & in the second embodiment. In the present embodiment, the reaction tank 47 corresponds to a “first raw water tank” described in claims, [ 0054)

Recording to the present embodiment, mixing of the ozons gas and the “water to be treated” in the reaction tank 47 is facilitared, and the sterilization effect for the “water to be treated” is higher than a case in the second embodiment. In the present embodiment, since there 1s a possibility that surplus ozone gas is separated froma water surface of the “water

Lobe prea 17 and released into the at wry Fr vm Tb ta read rab os

CG De Treated and released LLLO THe aumesphiere, 10 18 degslla rie that the separated ozone gas 1g collected by a cover over the reaction tank 47, treated, and released into the atmosphere, 0055)

Ag understood from the above, according to the first to fourth embodiments, since the relatively low pressure 0.8 fo 1.5 MPa of the nonpermeate water OU of Lhe wastewater Lrsalment system 1 is utilized as the energy for generating the fine bubbles 10%, the power is not necessary as in the conventional cases in wnich the “water to be treated” is compressed by a motor pump and rapidly decompressed te generate the fine bubbles, or the air ls compressed and released from micropores into Lhe “water Lo De treated” To generate the fine bubbles, and if is possible to provide the complex desalination systems 100A to -35-

P5425

Client Ret. No. PMIOOGEL-POTI-SGT TOLL -030 635

TANT agin om = dan em dA TE Ty yd bem em Se de iyub which gre reduced In ns power Cost. Further, 14 1s

Se Tom de pm pmo mtg 4 ede de de mmr mr deme m1 demon 4 ve morro eee OAV +o pOoZsibDie TO provide The Complex defialliliallion syooaems Lu OA to

TIVITY poten nem dem oy mg de Tm yee gon pn mo fe ny ard Tomb Td ws 4 ape pe rr em ed bey vem edn em tw or

LULL WNL On nave rhe Operation aval Lani lity vmnroved Vor CIO ad

Tne Dro auency o I tne Toulin 0 GL Lhe reverse GsSmosSis membrane 4 Eble me mre Eee Tr vm i JE ie = Amr em RE Sem 2 OU Ulies seawaley yeverss O3mMozils membrane device 30 in the - yey om ny 3 pm = Td yy om de n ov og woe Foyer "3 seawater daesalinallon system J.

CoE

CUD by

Although the device of the direct pressure-exchange method 15 described as rhe anercy recovery device 210 ip FIO meno 1 descrlioaed ag Tne energy recoveny aevidcs a3 LIL Fils. 16) Tle mlm Ed ams Roe Feat bn mnie edd opr boa mred Fem bums moe reser A . LoAln Lhe Dios LO TOuDth @DOQiisenis ang Lhe Losier Damp al

Lon mmr wn med on dem gma be on om emraa gm cn em ge Si der wd ppt de md de bya oe

LE COMmDIned at a supsSeduent SUage, LT LE NoeU Limited © hereto.

To Err vee Pom era rrr Er Fre ode arene bag A TT YT ES Fn nam oo

A Turbocnar Ger pRUImD may De QriLven by Che nonpesrmeate Water (.

In this case, the piping 8% and the piping 90 are respectively connecten To an inset and an out ler Of turbine GET LON {cd Tiving

Is POILLONn) OL The Turnocharder pumd, Lhe Qownsiream siag OL the

Tn yy vy or SE fe Sen merry en eel ened Foon mre don Tmt FE hm rmarmrs vm ed 4 es mE de Ye pn

CLLLNG on 1s Connected TO an inet GI TAS Damp Dortion on The rm amen mn Tn oy en me — og ad ~ pn de Ta de on a mp pn me oe 2 . I be bey oe

Curpochargey pum, anda an outliel OIL pump portion Of Lie turbocharger pump is connected through piping to the supply port - —- To emu ely omy Er bo be pp pe py em gn ee ge © Te pe = wr rr em my mv om be gm ye 38a. In such a method ;, the pressures of The non permeate Water

FT ven bm mee ween oe erp Tome eon 1] ar Fle ret omer G0 0 ee ed

Hi Goan De also recoverad. Lnclgentally, tne piping 224, 9 Zand the booster pump 41 are not required in this case.

Pom TT

TMD)

To btm mr rb de Imm mes morro Doom oor 4 ov wae 0 pede be Fun 8 pe dey en Te Tn en pen en de ay gen ede edBAUEL DD LAIRD OAs LW 2) Wan dosent DIRT Lie and Folds A ede lL a nde EYE pr Ade de ee Che ae ee TT Te vy Pm mp Ln em rn en Te ne] part 19 is provided in the Intake tank 32 have been described - -36-

P5425

Client Ref. No PMIGOORL-POTI-SG1 2011-032635 in the first to fourth embodiments, the fine bubble generation part 1% may be provided in the middle of the piping 57 on the downstream side of the pressure reducing valve 17, and generate the fine bubbles 105. Further, by providing a junction of the piping 57 and the piping 82, the fine bubble generation part 19 may be provided on a portion where the seawater DI and the anonpermeate water ££ of the low-pressure reverse 0smosis membrane device 16 are mixed, and generate the fine bubbles 105, and then the “water to be treated”, which includes the fine

HH} bubbles 105 and is amixture of the seswatar Dand the nonparmaate water of the low-pressure reverse osmosis membrane device 146, may pe stored Ln the intake tank 32. Furthermore, only the seawater DD may be introduced and stored in the intake tank 32, a function with the piping 57 may be provided on the upstream side of the filtration pump 33 of the piping 83, and the fine bubble generation part 19 may be provided orn the junction or a portion where the seawater D and the nonpermeate water OO of the low-pressure reverse osmosis membrane device 16 are mixed,

J ym i= i} oa . Pn Ye 1 . E and generate the fine bubbles 105%. 200 £40058)

In the above-mentioned basic embodiment and the first to fourth embodiments, although the product water B and the product water © are supplied outside depending on each of water quality level, the product water B and the product water & may be mixed -37-

Client Ref. No, PMLOUOBE-POTI-SGI 2011-032635% and supplied outside. {Reference Signs List) 3059; i wastewater Treatment system (second water treatment system) 3: seawater desalination treatment system (first water

Treatment system) 6: control device 13: MBER water treatment device 1 12: transfer pump 13: treated water tank 14: supply pump 15: high-pressure pump ia: low-pressure reverse osmosis membrane device (second rEVersa osmosis membrane devioed lec: outlet port (outlet of nonpermeate water of second reverse osmosis membrane devioe) 17: pressure reducing valve (first valve, fine bubble generation unit) 18: back pressure valve (second valve, fine bubble generation unit) 1%: Tine bubble generation pars (fine bubble generation unit) di intake pump 27 intake tank {first raw water tank) 238

P5425

Fd gmt Tien Mem RAT AONE mer me TTT LTT AE

Client Ref. No. .PMIOOOBE-PCTI-541 2031-03 20655 2. ELT em dey Sn

Zl trityatioen pump 24 ven ewe en re es py Fa tem 1 oy mtr ove

SAD preliedaltment DL LL ration dev ioe 35: Treated water tank - a sh supply pump 3 37 NIGN— pressure pump

TE. Somaya too ET WO En md or py re Be pe oy pgm A LT mn de pe mem pe en om

S00 SoaWalel evel Sg O2MOSIE8 Manbhraneg dev lioe { TLS reverse err en Le women moe mops od er Leen

DSMOS LD MennDransg Jdevioe J 20: enalidgy recovery Gevioe 401: backpressure valve 1 41: booster oump a0: CLONG gengrs OT ao ep om Lh pm Sg wy — 46: ozone injection pump 477. reaction tank (Fiver raw warer Tarn) “0 CERT IO Lalnll DATS Taw wae and)

G08, 4710: PAL ITLON plate a, CE alee des - oh. LlinaiRis loe mo. em ree Fe Sm dm Een mylene] rg vy A FO

So [SNR SRR Ee: { Tray PRL IOO, Line bubble generation unity

UF. HR ES em de qe re de Lem aad Toes ren yen vem oie evr ey dd) ai piping (first piping, Line buble Generation unit) oa. olen pe ve pre ed pd Flees Fuiadada dl on vid de od: proing (second piping, Line bubble generation unit) tl: control unit 6 control unit [A yp Tow ey | Try yd

Tol QoL roL anni

TT TMT TT TN FET. ou ee ba Som oonooy To omy bor oes ovr born

Fl, Buus, LUgn, LLL, LU CG: complex desalination 8 Va em

TE E03 nn dentin

Lind DLE malin le

A WasLewater (second raw water) 3 ~39-

P35473

SG emt Dre © Gey DVT ONE DT] a Sn STAYTON LE

Client Rel. No, pPMIOGOHL-POTI-5G1 AOL I-0342630

Ty + oem orn bn ee ECE + mony tp de pm ge

Ul Seawater { IIrsSy raw Wate J

Ph branch point

ERIE mR ee fo eon eg eb my ye

FLL OZone LNTaeCl lon poriion fr TLi0wW rata sansaor { iow rate detection unit) 2 0. pgm oe on ey . Le fy bude ram yn em EA ye EN, 3 DL oressure Sensor { Tine mune generation rezone detection unit]

P5425

Claims (1)

1. Client Bef. Ho PMIGOOSL-POCTL-3G1 Z011-0226355 CLAIMS Loh complex desalination system, comprising: fa first water treatment system that filvers a first raw water of high salinity concentration with use of a first reverse osmosis membrane device; and a second water treatment system that filters a second raw water of jower salinity concentration than the first raw water with use of a second reverse osmosis membrane device, wherein tne first water Lreatment system comprises a fine bubble 0 generation unit rhat generates and discharges fine bubbles inte the first raw water fTaken in, by rapidly decompressing a nonpermeate water discharged from the second reverse osmosis membrane device in the second water Lreatment sysLem.

   2. The complex desalination system as set forth in claim 1, wherein the [ine bubble generation unit comprises: a fiyst piping that connects an outlet of the nonpermeate water of the second reverse osmosis membrane device and a first raw water tank storing the first raw water taken in; a first valve provided on the side of the first raw water tank of the flivst piping; and a Line Dubble generation part thar ts provided on 4 downstream slice of the first vaive of the first piping, and P15425 A

   Client Ref. No. pPMIOGURE-POTI-S5461 20131-0322635 generates and discharges gases dissolved in the first raw water as the fine bubbles by rapidly decompressing the nonpermeate water of the second reverse osmosis membrane device when introducing the nonpermeate water into the first raw water tank,

   3. The complex desalination system as set forth in claim 2, wherein the fine bubble generation unit further comprises: a second piping that is bifurcated from the Tirst ploing Hd at an upstream position of the first valve and connected to the first raw water tank; and a second valve That is provided on Lhe second piping and regulates a flow rate of the nonpermaate water of the second TEVEersSe osmosis membrane device.

   4. The complex desallpation system as set forth in claim 3, further comprising: a llowrate detection unit that iz provided on an upstream side of a branch point of the first piping to the second piping, and detects the [low rate of the nonpermeate water of the second reverse osmosis membrane devioe; a fine bubble generation pressure detection unit that is crovided on the [irs ploing between tne [first valve and the Line bubble generation part, and detects a pressure of the P5425 a

   Client Ref, No, PMI0JCES-PCTI-3GI ZOLI-0326355 nonpéermeate water of the second reverse csmosls membrane devices which is decompressed by the first valve; and a control unit that regulates a decompression degree of the first valve on the basis of a pressure signal from the fine 3 bubble generation pressure detection unit, and regulates an open degree of the second valve so as To adjust the flow rate of the nonpermeate water of the second reverse osmosis membrana device to a predeterminagd flow rate on the basis of a flow rate signal from the flow rate detection unit. Ho The complex desalination system as ser forth in olaim 2, wherein the first yaw water tank is divided into a plurality of compartments by a plurality of partition plates, allows a raw water discharged with the fine bubbles to changes the i5 flow direction thereof up and down alternatively, facilitates mixing of the raw water with the fire bubbles, and facilitates sterilization and decomposition of crganic matter by crush of the fine bubbles.

   6. The complex desalination system as set forth in claim 3, wherein the flrat raw water tank is divided into a plurality of compartments by a plurality of partition plates, allows a raw watery discharvged with the fine bubbles to changes Lhe flow direction thereof up and down alternatively, -43- P35425

   Client Ref. Ne.PMIOR0ES-PCTI~8G] 2UTI-0322850 Lo Yd bomb mp eed ene rE gems em tm cord Adm Adem Fm Jag facilitates mixing of the raw water with the fine bubbles, on pd AT em en ST dee ke ee pm CTS ey oam de wnm m To . mp oh my pm Fol em dm and raciiliartes ster: 1zation and de COMpOn TRON Or Organic matter by Ccrusn of the ine pubbles. > Lai \ > om mn my Tn py oy de 2 vy wy of —~ = Fag I <r me eq + 7 3 fo The complex desalinatlon system as set forth in oliaim 4, RG {ope ie en 0 eee rr mambo Eom de tars deed rb om om yn lira oA eas wherein The T1YsU Yaw watery TALL LS Givided 1nto a piurality £m pri ge de pn pn Be on Bers om wm Toe on Sd cs Ln my ge 8 de ee So de mm mT pare OL Compariments DV 8 plurality Oo Rartliilon niates, aliows & raw water discharged with the fine bubbles to change the £7 es A gm te 3 “0 Cam EE re JR 3m Yb mem me Ltrs Tog LLow direction therecr Li and OW arternativel Yor { Eon d TD be oy de gon La dom mE de Tey ye mas ma doy rd bb de ey ED mm Fmgabeies Toone K Facilitates mixing of The raw water wiih the Dine Dubbhies, - TE my pm Td de am de nn oe de Na ed pgm gm od pa pe a SC and facilitates sterilization and decom DOosLLLOon OL crganlc ob ae Wes wry om bm AT Re pm AT pee baa le " matter by crush of the fine bubbles.

   S.olne CombLaex gaesalination 5 VEnem a3 sel Tor tivoinoolalm 2, oo El yn mm em en nm em pn he pm Turner COmprising an Gzone generator Thal generates ozone gas, wigreln yn im rm pe eo qm wm gon ow ee 3 en en oy po pen dm om dee bon mem pm yn me be wT pe dy A Je em yn, my omy on G0 CZONE LNaCUion portion, Throudn which the Grong gas SEE rater hy Fhe muons seneraber Ga incest ard ba pred ceed er Jencrated Dy Lha QIone Jdgenhelalall Ls rnjeciued, 13 provided on FE Ee ot de Te . - dle D0 a dew Tn I be en eb Te the first piping between the first valve and the fine bubble generation part. OF Mum verre lo Aamo mT] pm bl are erage Ere mer wes Feeds Lon a] om a

   5. The oo mp iex desalinal ion s yvatem as sei forin in claim 3, Du gn on ye pr pe a ye TUrTaer Comprising UP ry RE Ey rg en my Ae a ee ey mp ke gon een otopnoe pep a on worl en es or an QIOne generzioy nal generates ozone gas, wherein AD OEZOnNE Ln eClion portion, Lhrougn whioh the ozone gas P3425

   Client Ref. No. PMICOOGEL-PCTI-SGI 2011-032635% generated by the orone generator is injected, is provided on the first plping between the first valve and the fine bubble generation part.

   10. The complex desalination system as set forth in claim 4, further comprising an ozone generator that generates ozone gas, wherein an ozone indection portion, through which the crone gas generated by the ozone generator is injected, is provided on the first piping between the first valve and the fine bubble generation part.

   11. The complex desalination system as set forth in claim 3, further comprising an ozone gensrator that generates ozone gas, wherein an ozone injection portion, Through which the ozone gas generated by the ozone generator is injected, is provided on the first piping beltwesan the Livst valve and the fine bubble generation part.

   1z. The complex desalination system as set forth in clalm 6, further comprising an czone generator that generates ozone gas, whersin an ozone injection portion, through which the ozone gas generated Dy the ozone generator 1s injected, ls provided on

   45. P35425

   Client Ref. No, PMIGOREL-PCTI-5G1 Z011-032635 the first piping between the first valve and the fine bubble generation part.

   13. The complex desalination system az set forth in claim 7, further comprising an ozone generator that generates czons gas, wherein an ozone injection portion, through which the ozone gas ganerated by the ozone generator Lg injected, 1s provided on the first piping between the first valve and the fine bubble generation part. ~d6- PR5425