WP3 - ZEROBRINE · 2020. 11. 9. · WP3 Minimizing energy consumption and increase resource...

The ZERO BRINE project (www.zerobrine.eu) has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730390.

WP3 Minimizing energy consumption and increase resource

recovery yields through advanced treatment methods in the coal mine and textile industries

Industrial Wastewater Resource Recovery Circular Economy

Polish case

Buffer tank

Pretreatment and decarboniza3on

Buffer tank

Ultrafilt r a3onBuffer tank

Nanofiltra3onNanofiltra3on

Buffer tank

Buffer tank

Reverse osmosis

Buffer tank

Buffer tank

Buffer tank

Electrodialysis Electrodialysis

Mg-rich retentate

Demineralizedwater

Concentratedbrine

Coal-mine water


Bench-scale tests of unit operations used in the plant

Design and construction of the plant

Plant start-up

Preliminary tests with CrIEM

Work done so far


Preliminary results

0

5

10

15

20

25

30

35

40

45

50

0 50 100 150 200 250 300 350

Plant run [h]

Coal mine water conductivity, mS/cm

0

5

10

15

20

25

30

35

40

45

50

0

5

10

15

20

25

30

35

40

45

50

0 50 100 150 200 250 300 350

Co

nd

uct

ivit

y, m

S/cm

Pre

ssu

re, b

ar

Plant run, h

NF1

Pressure

Hydraulic pressure drop

Retentate conductivity

Permeate conductivity


Preliminary results

0

5

10

15

20

25

30

35

40

0

5

10

15

20

25

30

35

40

0 50 100 150 200 250 300 350

Co

nd

uct

ivit

y, m

S/cm

Pre

ssu

re, b

ar

Plant run, h

NF2

Pressure



0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

1

0

5

10

15

20

25

30

0 50 100 150 200 250 300 350

Co

nd

uct

ivit

y, m

S/cm

Pre

ssu

re, b

ar

Plant run, h

RO

Pressure




Preliminary results

0

5

10

15

20

25

30

35

40

45

0 50 100 150 200 250 300 350

Plant run [h]

Voltage drop, V Applied current, A


Decarbonization unit moved from pretreatment to after the ultrafiltration

Additional buffer tanks

Additional filters for pretreatment

Plant modifications


Finish the plant modifications

Optimize the working conditions

Generate brines for CrIEM and EFC tests

Collect data for economic analysis and LCA

Next steps

INDUSTRIAL WASTEWATER RESOURCE RECOVERY CIRCULAR ECONOMY

Batch System

𝐽 𝑚𝑜𝑙𝑂𝐻−𝑐𝑙𝑒𝑎𝑛 𝑚𝑒𝑚𝑏 = 8,37 ∗ 10−5

𝑚𝑜𝑙

𝑚2 ∗ 𝑠𝑒𝑐

3

4

5

6

7

8

9

10

11

12

0 2 4 7

11

15

19

26

34

45

65

85

10

5

12

5

14

5

16

5

18

5

20

5

22

5

pH

Time (min)

pH vs Time

0

20

40

60

80

100

120

0 60 120 180 240

% M

g C

on

vers

ion

Time (min)

Conversion of the Reactants vs time

𝐽 𝑚𝑜𝑙𝑂𝐻−𝑐𝑙𝑒𝑎𝑛 𝑚𝑒𝑚𝑏 = 8,37 ∗ 10−5

𝑚𝑜𝑙

𝑚2 ∗ 𝑠𝑒𝑐

test

[𝑴𝒈𝟐+] (𝒎𝒐𝒍

𝑳) [𝑪𝒂𝟐+] (

𝒎𝒐𝒍

𝑳) [𝑵𝒂+] (

𝒎𝒐𝒍

𝑳) 𝑸 (

𝒎𝒍

𝒎𝒊𝒏)

Initial

Volume

[l]

Physical State of the Alkaline

Solution

1 0,132 0,634 0.461 23.0 0,1 Solution

2 0,132 0,634 0.461 23.0 2 Solution

3 0,011 0,015 0.448 25.41 2 Solution

4 0,011 0,008 0.447 90.75 2 Suspension

5 0,011 0,008 0.447 181.5 2 Suspension

6 0,123 0,556 0.431 181,5 2 Suspension

1 1

BRINE TANK

Ca(OH)2 SUSPENSION

TANK

PUMP BRINE

Brine inlet

Brine inlet

Brine outlet

Ca(OH)2 inlet

PUMP Ca(OH)2 SUSPENSION

CR

IEM

Ca(OH)2 outlet

PT

PT

Ca(OH)2 inlet


Experimental Parameters in the batch campaign

Test

Mg Conversion %

Ca By-product %

Purity %

Ionic Flux

(𝒎𝒐𝒍

𝒎𝟐∗𝒔𝒆𝒄)

Reaction Time (min)

Final pH

Physical State of the

Alkaline Sol

1 100 0 100 𝟕. 𝟏𝟕 ∗ 𝟏𝟎−𝟓 365 10.5 Solution

2 100 0.16 98.8 𝟑. 𝟗𝟔 ∗ 𝟏𝟎−𝟓 660 10.5 Solution

3 100 8.77 86.43 𝟕. 𝟓𝟒 ∗ 𝟏𝟎−𝟓 240 10.9 Solution

4 100 11.32 91.86 𝟏. 𝟎𝟏 ∗ 𝟏𝟎−𝟒 240 11.4 Suspension

5 100 5.71 100 𝟔. 𝟗𝟐 ∗ 𝟏𝟎−𝟓 300 11.4 Suspension

6 100 6.23 72.40 𝟐. 𝟔𝟖 ∗ 𝟏𝟎−𝟓 5190 10.5 Suspension

0

20

40

60

80

100

0 50 100 150 200 250 300

% C

on

vers

ion

Time (min)

Conversion vs time

Suspension

Solution


Feed and Bleed system and result

0,0

20,0

40,0

60,0

80,0

100,0

0 200 400 600 800 1000 1200 1400 1600 1800 2000

% C

on

vers

ion

Time (min)

Conversion in Magnesium Hydroxide vs Time

CONV Mg2+

test

[𝑴𝒈𝟐+]

(𝒎𝒐𝒍

𝑳)

[𝑪𝒂𝟐+]

(𝒎𝒐𝒍

𝑳)

[𝑵𝒂+]

(𝒎𝒐𝒍

𝑳)

𝑸 (𝒎𝒍

𝒎𝒊𝒏)

1 0,119 0,551 0,423 0,49

2 0,126 0,591 1,125 0,47 BUFFER

TANK

CrI

EM

FRESH BRINE

Ca ( OH ) 2 SUSPENSION

Ca ( OH ) 2 in CRIEM Max flow rate

Ca ( OH ) 2 outlet CRIEM Max flow rate

Fresh Brine inlet 0 . 45 ml / min

Suspension outlet

Sam ple 1 2 3 4 n

Fresh Brine inlet

Filtration

Mg(OH)2 slurry outlet flowr rate

0,45ml/min

Solid Cake

PT

PT

Suspension inlet

Sam ple

Sam ple

Sam ple

Sam ple

Purity of magnesium hydroxide above 99%

Experimental parameters


CrIEM tests on a real NF retentates

Testing the CrIEM in Poland (The CrIEM will be at SUT for the “Field visit to the ZERO BRINE demo-site in Poland” event organised by Revolve on the 8th of October)

Next steps


Currently in progress with synthetic brines

Tests with real brines expected when ED is ready to run again (most likely this month)

EFC tests


Turkish case


Sampling and characterization

Among parameters, hardness, color fundamental concerns for textile dyeing processes.

Organic content of concentrate and sulfate are also considered to be crucial.

Bench scale treatability and assessment

Testing unit processes, NF, IEX (cation anion), ozone ox., AC adsorption, RO, electro-coagulation, electro oxidation, evaporation

Development of process schemes

Selection of best applicable option

Detailed design of selected process scheme

Work conducted


Selected process scheme Process steps Applied process units Remarks/expected impacts

Pre-treatment ozone oxidation removal of color, organic

matter

Nano filtration (NF), 2 steps retaining impurities i.e.

color hardness, sulfate,

remained organics and

allowing passage of salt for

the concentration step

Concentration Reverse osmosis (RO) concentrating pre-treated

brine, RO permeate to be

reused

Further treatment-

softening

ion exchange - cationic achievement of suitable

and secure salt solution for

dyeing process


Brine treatment and recovery – to be constructed


Procurement is about to be finalized,

Installation and testing period will be commenced

Construction, operation and optimization,

Evaluation of the environmental benefits, social benefits and the economic feasibility of the innovative ZERO BRINE textile demo case will be appraised.

Next steps

Date post:	05-Feb-2021
Category:	Documents
Upload:	others
View:	2 times
Download:	0 times

WP3 - ZEROBRINE · 2020. 11. 9. · WP3 Minimizing energy consumption and increase resource...

Documents