Product Case Study - EVALED: LCD Screens | PRAB
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LCD Screens

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Customer The Client is a global leader manufacturer in Taiwan specialized in optoelectronics and it produces TFT-LCD panels and all kinds of display applications.

Customer’s Needs The Client has acquired the ISO 50001 energy management certification and the ISO 14045 eco-efficiency assessment. In addition the Client is targeting a 25% reduction of carbon emissions in all its premises by 2015 and needs to achieve a relevant reduction in sludge production and relative disposal costs, complying with the local environmental legislation.

The plant | 1st production site

Analysis and Plant Process Diagram

Parameters

u.m.

Waste in

Distillate out

Concentrate out

pH

–

6-6.5

9

–

Conductivity

μS/cm

<35,000

<900

–

TS at 105°C

%

0.6-5

–

30

Chloride

ppm

<400

<10

–

Ammonium

ppm

1,000-9,000

<50

–

Copper

ppm

4,500

<10

–

Sulphates

ppm

9,000

<10

–

 

Technology Type

Material

Footprint (m²)

RV F 15 AA

AISI 316

10.5

 

CS35 EVALED 1st Production Site

 

The plant | 2nd installation: 2 production sites

Analysis and Plant Process Diagram

Parameters

u.m.

Waste in

Distillate out

Concentrate out

pH

–

6-6.5

9

–

COD

ppm

80,000

<4,000

–

Conductivity

μS/cm

<50,000

<500

–

TS at 105°C

%

9-11

–

30

Chloride

ppm

<500

<10

–

Ammonium

ppm

500-15,000

<10

–

Copper

ppm

6,000

<10

–

Sulphates

ppm

6,000

<10

–

 

Technology Type

Material

Footprint (m²)

2 x RV F 30 AA

AISI 316

2 x 14

 

CS35 EVALED 2nd Production Site

 

Results

Water separated: 70-90%

Concentration factor: 4-10 times

The solution achieved:

  • 70-90% distillate recovered and reused in the production process (water reuse);
  • sludge and disposal cost reduction.
  • Pay-back: 1 year

 

 

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