Industrial Waste Water IKEA Application Example Turkey

8/6/2019 Industrial Waste Water IKEA Application Example Turkey

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Application example:Application example:

INDUSTRIAL WASTE WATER REINDUSTRIAL WASTE WATER RE --USEUSE

MEMBRANA GmbHWuppertal, GermanyNorbert Selzer

www.liqui-flux.com


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Content

Introduction of MembranaIntroduction of Membrana

Initial position of the ProjectInitial position of the ProjectPilot trialsPilot trials

Plant designPlant designOperating experienceOperating experience

Summary and previewSummary and preview


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ENERGY STORAGE

Ion Exchange Membranes

TRANSPORTATION& INDUSTRIAL

Lead acid batteryseparators

Polypore separator

ELECTRONICS

Rechargeable andDisposablelithium batteryseparators

SEPARATIONS MEDIA

High Performance Filtration

HEALTHCARE

- Hemodialysis- Plasmapheresis- Blood

oxygenation

INDUSTRIAL& SPECIALTY

- Liquid filtration- Degasification- Gasification- Debubbling


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Membranas core business

Dialysis membranes Oxygenation membranes

Membrane Contactors Filtration Modules

H e al

t h c ar e

I n d u s t r i a

l S e p ar a

t i onFlat sheet membranes


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Part of Polypore-Group since 2002

Plant in Wuppertal, Obernburg(Germany) and Charlotte,North Carolina (USA)

Leading manufacturer ofmembranes for medical andindustrial application

~ 480 employees

Turnover > 100 Mio /a

Start of dialysis membraneproduction

Start of CUPROPHAN membraneworldwide leader in dialysis

Start of industrialmembrane (ACCUREL )

J. P. Bemberg, Vereinigte Glanzstoff Fabriken 1925

BU Membrana, Enka Glanzstoff 1960

Enka Glanzstoff 1950

BU Membrana, Akzo 1988

History and status:

Start ofMicroPES -membrane

Introduction of UltraPEScapillary membrane

J.P. Bemberg 1792

Membrana GmbH, Polypore 2002

Product launchLiqui-Flux

1965

1974

2000

1980

1995

2005


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Initial situation of the Project

200 - 500Alkalinity [mg/l]

7-30Temperature [C]

300-650Color [Co-Pt]

1200-2800Conductivity [S/cm]

400-800CSB [mg/l]

500-750TSS [mg/l]

RangeParameterMix of waste water

from open sewer,

with sewage from

chemical, metal and

textile industry.

In winter diluted by rainwater.


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Existing Waste Water Treatment Plant

Incl. tertiary treatment: Precipitation/Flocculation/Sedimentation/Sand filter


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Clean water quality

After existing WWTP

7,1-7,8pH

7-30

10-60

1200-2800

20-60

8-30

2-10

Range

Temperature [C]

Color [Co-Pt]

Conductivity [S/cm]

CSB [mg/l]

TSS [mg/l]

Turbidity [NTU]

Parameter

7-8pH

-Temperature [C]


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Pilot trials in 2 phases

Mechanicalcleaning

Biological cleaning Chemical treatmentSand filter

Pilot Chemical Treatment

UF Pilot system

Pilot RO

Phase APhase B


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> 12 barBurst Pressure

1,25 / 0,8 mmOuter / Inner Diameter

80 kDaNominal Cut-off

PolyethersulfoneMembrane Material

Hollow Fiber, Inside - OutMembrane Type

Membrane Characteristics

UltraPES Membrane

Cross-section of the 3-layer structure

SeparationlayerSupport layer

Protectivelayer

MultifiberP.E.T. Technology


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1-13pH-Range During Cleaning

40 CMax. Working Temperature

4 barMax. Working Pressure

61 m 2Membrane Surface Area

135 kgWeight Filled With Liquid

40 kgShipping Weight

Victaulic (76.1 mm)ConnectorsEPDM, O-RingSealing Material

PolyurethanePotting Material

Glass Fiber Reinforced PlasticHousing Material

Liqui-Flux UF Module W02


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Pilot system in the field


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Phase A: Start of pilot trial


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Pilot trial - waste water Turkey 90 lmh; BW every 59 min; PAC 0,5 mg Al/l; CEB H 2SO 4

0

100

200

300

400

500

600

700

800

900

1000

07.04.2007 09.04.2007 11.04.2007 13.04.2007 15.04.2007 17.04.2007

T M F [ l / h / m / b a r ]

0

1

2

3

4

5

6

7

8

9

10

T u r b

i d i t y

[ N T U ]

Phase A: Stable operation achieved


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Simulation of overdosing in pilot sedimentation - UF 65 lmh; BW every 39 min; PAC 0,5 mg Al/l

0

200

400

600

800

1000

1200

1400

1600

27.08.200700:00

27.08.200712:00

28.08.200700:00

28.08.200712:00

29.08.200700:00

29.08.200712:00

30.08.200700:00

30.08.200712:00

31.08.200700:00

31.08.200712:00

01.09.200700:00

T M F [ l / h m

b a r ]

CEB NaOH + NaOCl,10 min

CEB NaOH + NaOCl,10 min

Phase B: Adjusting with the treatment of the WWTP


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Filtrate quality in pilot trial

RO elements with high packaging ( 28 mil-Spacer )were in stable operation without performance loss for weeks

~0 (detection limit)TSS [mg/l]

10-30COD [mg/l]

22,5SDI-15 [%/min]


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System design of UF&RO


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System design of Ultrafiltration

Feed tank for approx. 30 min (nominal operation)Dosing of coagulant and dynamic mixer

Coagulation pipe (inside feed tank) forapprox. 60 sec residence time

7 feed pumps for 7 UF-racks

Sieve basket filter, 200m, automatic backwash,synchronized with UF backwash

7 UF-Racks each with 76 modules , 4636 mmembrane surface per rack

Backwash with UF-filtrateCEB with RO-permeate


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From August until September 2007 the 7 UF and RO racks were started one afteranother, one UF rack then one RO rack and so on.

At this point in time a good basis from the piloting was available to increase the fluxof the UF up to the scheduled value of 75 l/h/m within a few weeks. At the beginningthe backwash interval was adjusted to 30 minutes and in several steps increased to60 minutes. Transmembrane pressure (tmp) during filtration stayed below 0.2 bar(2.9 psi).

The chemical enhanced backwash was adjusted several times to fit to the raw waterquality. The standard procedure now is cleaning with NaOH at pH >12 with additionof 200ppm chlorine. After a backwash an acid step at pH 2 for rinsing out the causticfollows.

During the start-up it was examined by sampling that all modules get the sameconcentration of chemicals.

Operating experience I


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Two events during the last 3 years required special activities.

In December 2007 the performance of the biological treatment in the WWTPdecreased and also a part of sludge came into the feed to the UF. Within a shorttime the tmp increased to 0.8 bar and the system was stopped automatically.Several backwashing steps could recover the flux only partially. Therefore thecaustic CEB was done two times at pH of 12.5 with a soaking time of 20 minutes,which increased permeability to >500 l/h/m.

One year later, around New Year 2008/2009 an increase of the tmp took placeduring several weeks until 0.6-0.7 bar were reached. The caustic CEB did not workwell. After checking the water analyses from the WWTP, which is done regularly bythe operating company, high values of metals (Al, Mn, 0.4-0.5 ppm) were obvious. ACIP with citric acid for 1h at 38C recovered the flux to a value in the range of thestart value.

Operating experience II


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During 9 of 12 month in a year one CEB per day is satisfying. In case of highcontamination in the raw water the operator switches the CEB to every 12h and insingle cases to every 8h.

The filtrate quality is checked continuously regarding SDI-15 (


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Summary and previewSummary and previewBy the combination of Inline-coagulation, Ultrafiltration and Reverse osmosis asystem design has been installed which works safely and economically despite thechanging load in the waste water from the different industrial companies.

The used Ultrafiltration membranes have been demonstrating their suitability by alow fouling tendency and favorable cleaning properties.

In combination with a sophisticated module and system design, and an operationadapted to the local situation, this process system obtains central importance inindustrial waste water recycling.

Alternatively to the pre-treatment from the existing system in this project(sedimentation, gravel filter) for new systems, depending on the load of the water,other process steps like flotation and sieve filter should be tested and considered.

UF system costs may be reduced by usage of modules with increased membrane

surface: 75sqm

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Industrial Waste Water IKEA Application Example Turkey