EXPERIENCE
WORLDWIDE LEADER FOR ZERO LIQUID DISCHARGE
QUALITY
KNOW-HOW
INNOVATION
R&D
KNOWLEDGE, COMPETENCE, EXPERTISE
•
38 YEARS OF EXPERIENCE
- Established in 1981 •
A YOUNG BUT HIGHLY QUALIFIED TEAM
- Average age: 38 years - Graduated Employees: 41% • GLOBALLY OPERATING AND GLOBAL THINKING • NO LICENSED TECHNOLOGIES: - CIE designs and develops Technologies and products for its own use • Worldwide leader in Z.L.D. (Zero Liquid Discharge) with more than 45 Z.L.D. fullfilled
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CIE Plants in the World
CIE has realized over 150 plants in the world, from the Automotive sector
to the Coil sector and in the Beverage Cans sector
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LEADER COMPANY IN WASTE WATER TREATMENT & Z.L.D. (Zero Liquid Discharge) PLANTS
AUTOMOTIVE
COIL COATING
ALUMINIUM EXTRUSIONS
ALUMINIUM CANS
APPLIANCES
ALUMINIUM WHEELS
Waste Water Plants specifically dedicated to METAL FINISHING LINES 4
ACTIVITIES FOR METAL FINISHNIG LINES
1)
REVERSE OSMOSIS UNITS
2)
DEIONIZING AND MIXED BED UNITS
3)
COALESCER DEOLING UNITS
4)
CHEMICAL DOSING AND CONTROLLING UNITS
5)
WASTE WATER PLANTS (PUR-ALL TECHNOLOGY)
6)
ZERO LIQUID DISCHARGE (Z.L.D.) PLANTS
7)
TELESERVICE AND TELEASSISTANCE 5
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RESEARCH & DEVELOPMENT
INTERNAL LABORATORY EQUIPPED WITH: Inductive coupled plasma (I.C.P.)
Spectrophotometers with variable and fixed wavelength Nephelometer Thermoreactor
Conductivity meter pH meter Titration station
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LEADER IN CHEMICAL SPECIALTIES For Waste Water Treatment and ZLD plants
PUROSORBTM
Specific powder products and blend for adsorption on WWTP of: COD < 150 ppm; Oils; Surfactants; Organic substances.
PUR-ALLTM
Chemicals Specially formulated for WWTP to remove: Sulphate < 50 ppm; Fluoride < 4 ppm;
PUROFLOCTM
Anionic Flocculants for WWTP: Medium and Heavy TSS concentration.
PUROSMOTM
Chemicals Specially formulated to manage: Ultra Filtration Units; Reverse Osmosis Units; Evaporators Units 7
PUR-ALL Technology PUR-ALL is a special process developed by CIE to remove: • • • •
Sulphates Phosphates Fluorides Heavy Metals (Fe, Al, Zn)
PUR-ALL performances: • Resulting water good to dump in rivers or lakes • Resulting water good for irrigation • Resulting water good for reuse
PUR-ALL applications: • • • • • • •
Phosphating or Nanotechnologies Coat Pickling lines Aluminum Cr or Cr free lines Anodizing lines Galvanizing lines Electroplating Any acidic metal treatment
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Process dedicated to ACIDIC PRETREATMENT & ACIDIC SECTIONS of aluminium finishing lines
PUR-ALL ZERO ZERO REVOLUTIONARY TECHNOLOGY
100% of water recycling (ZLD)* • NO Ion Exchange • NO Reverse Osmosis • NO Evaporator • NO Liquor to dump
The unique technology to remove dramatically Sulphates, Fluorides and Aluminium
Sulphates, Fluorides and Aluminium are precipitated as unsoluble non toxic sludge to delivery outside
Resulting waters are extremely pure: ʎ ≤ 200
Sulphates < 50
Fluorides < 2
Aluminium < 0,1 ppm
For irrigation use or to comply with any restricted limit, such as:
PUR-ALL ZERO ZERO is developed by our R&D team for CIE
Sulphates Fluorides Aluminium
< 300 ppm < 4 ppm < 0.1 ppm
plants using chemical specialties studied by MST CHEMICALS Thanks to PUR-ALL ZERO ZERO it is possible: In ANODIZING LINES: to reuse 50% of water, saving 50% of water consumption In ALUMINIUM PAINTING LINES:
To dump according to European limits
•
To reuse 100% of water (ZLD)
•
To dump water respecting limits for rivers, lakes, and irrigation use 9
PUR-ALL TECHNOLOGY FOR PHOSPHATING LINES
PHOSPHATING OR NANOTECHNOLOGY
ALKALINE CLEANING
Usable for irrigation
Fresh water
RINSE 1
Neutralizing
RINSE 2
RINSE 1
ACTIVATION RINSE 2
PURAL Flocculation treatment
PURAL neutralization tank
Retaking tank
WATER QUALITY
Sludge Thickener
Filter Press
● CO3 ● PO4 ● Me ● Cond. ● PH
≤ 100 ppm < 10 ppm ≤ 0,5 ppm ≤ 400 µS 7
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WHY TO INSTALL Z.L.D.
Extremely restrictive local limits No available sewer No available water Expensive water cost
97 – 98 % Washer Water Reuse Environmentally friendly - Ethical Reasons Risk of dispute with local authorities Superior quality of reused water in comparison with Tap Water Possibility to plan installations indipendently of local legislation 11
Z.L.D. Reusing Water Technology µs/cm
Alkaline Cleaning
Rinse 1
Rinse 2
Activation
Phosphating or Nanotechnology
D1
D2
D.I. Sludges
Neutralizing
Neutralized Water
•
Current technology
•
Consolidated experience
•
Superior Rinse Quality
ʎ ≤ 30 µs/cm
Regeneration
Evaporator
Distilled water
Liquor
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Z.L.D. Reusing Water Technology Case History
ZLD : for
Fe, EG, HDG Phosphating Lines Case history : SOFIND - Vicenza ( Italy )
Project data and parameters: - Customer - Subject to be painted - Cycle 1 (EG,HDG) - 80% - Cycle 2 (Aluminium)- 20% - Number of pieces per day - Surface (2 face) /hour - Production per day
: SOFIND (Vicenza-Italy) : Automotive parts : Zn Phosphating + CED + PC : Cr â&#x20AC;&#x201C; free + PC : 2000 p/h x 16 h = 32.000 p/day : 0,180 sqm/each x 2000 p/h = 360 sqm/hour : 16 hours (5760 sqm/day)
C.E.D. entrance of frames
EG, HDG (80%)
Back-flow Refilling
ALKALINE PRE_CLEANER
Back-flow Refilling
ALKALINE CLEANER
D.I. WATER RINSE
D.I. WATER RINSE
ACTIVATION
ZINC PHOSPHATING
D.I. WATER RINSE
ZINC PHOSPHATING
D.I . WATER RINSE
D.I. WATER RINSE
All. (20%) 13
PreCleaning/
level
Cleaning/
Rinse
level
level
D.I. Rinse
Zn Phospha ting
Activation
D.I. Rinse
Cr-Free All.Treat
D.I. Rinse
D.I. Rinse
D.I.: 9m3/h
Back-flow
Overflow
Z.L.D. Reusing Water Technology Case History
Sludges Filtration
Floating Oil Unit
Demin. Water Retaking Tank
Retaking Tank
Retaking Tank
Dirty Demin. Water Alcaline Exaust Tank
Acidic + spent regenerant Tank
CATIONIC
ANIONIC
CHARCOAL
DEMIRECYCLING DRD 9 CATIONIC ANIONIC
D.I. to CED
Acid +Alcaline Spent Regenerants
To recovery 150 l/h
To recovery 200 l/h
MIXED BATH
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Z.L.D. Reusing Water Technology Case History
3) PURIFIED WASTE RECOVERING
2) WASTE PURIFICATION SECTION ACIDIC wastes
By-product from Alkaline Rinsing Recovering
Distilled Water Recovering
Condensing unit
Vacuum pump
ALKALINE wastes
EVAPORATOR Acidification Neutralization Flocculation
Distilled Water
Settler Sludges Thichening Tank
CHARCOAL
Retaking Tank FILTER
Sludges Filter Press
Purified Water Storage
Spent Liquor Extraction pump
Sludge (40 % dry) :
Liquor waste for disposal :
Spent Liquor Tank
LIQUOR DISPOSAL
( NON TOXIC)
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PSD ® Process: Phosphating Sludges Detoxication INTRODUCTION: THE Zn PHOSPHATING, ALSO CALLED CRYSTALLINE PHOSPHATING, FINDS APPLICATIONS IN MANY AREAS: - GALVANIZED OR STEEL PRETREATMENT (AUTOMOTIVE, FRAMES , APPLIANCES, WHEELS , ) - METAL COLD FORMING (TUBE, WIRE, RODS, BOLTS, ) THE CRYSTALLINE PHOSPHATING BATHES ARE CHARACTERIZED BY A STRONG FORMATION OF SLUDGES WHICH ACCUMULATE IN THE TANK AND MUST BE CONTINUOUSLY REMOVED FROM THE BATH. ALL PHOSPHATING LINES ARE USUALLY EQUIPPED WITH A COLLECTOR (CONICAL THICKENER) OF THESE SLUDGES, OFTEN FOLLOWED BY FILTER PRESS TO REDUCE THE VOLUMES. THESE SLUDGES ARE ACIDIC AND CLASSIFIED AS ‘TOXIC WASTE’. AS SUCH, THEY REQUIRE A SPECIAL MANAGEMENT AND DISPOSAL COSTS ARE SIGNIFICATIVELY HIGHER THAN THOSE FOR SLUDGE CLASSIFIED AS ‘SPECIAL WASTE’ LIKE, FOR EXAMPLE, THOSE GENERATED BY USUAL PURIFICATION OF PHOSPHATING LINES. PSD PROCESS ALLOWS , WITH A SIMPLE AND LOW COST MANAGEMENT SYSTEM, TO TRANSFORM THIS ‘TOXIC WASTE ‘TO ‘SPECIAL WASTE’ EASIER AND LARGELY CHEAPER TO DISPOSE.
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PSD ® Process: Technology Description ● THE PROCESS IS APPLIED BY TAKING THE SLUDGE FROM THE EXISTING STORAGE TANK, BEFORE IT IS SENT TO THE FILTER PRESS (OR AT THE DIRECT DISPOSAL) ● IT IS SENT IN A SPECIAL REACTOR WHERE IT IS INERTED WITH A SPECIAL PRODUCT BASED ON Fe, Al AND Si MIXED OXIDES AND THAN NEUTRALIZED WITH LIME. ● THE PROCESS TAKES PLACE IN BATCHES OF SIZE PROPORTIONATE TO THE VOLUMES OF SLUDGE GENERATED DAILY OR WEEKLY. ● SO YOU GET THE PRECIPITATION OF PHOSPHATES IN THE FORM OF Ca, Al AND Fe PHOSPHATE WHILE METALS (Zn, Ni, Mn) ARE PRECIPITATED AS HYDROXIDES ● THE RESULT IS A HOMOGENEOUS AND INSOLUBLE SLUDGE, VOLUMETRICALLY EQUIVALENT TO THAT BEFORE TREATMENT BECAUSE IT IS MUCH DRYER AND EASILY FILTERABLE. ● THE FILTERED WATER IS ALREADY WITHIN THE DISCHARGE LIMITS. HOWEVER IT WOULD BE BETTER TO SEND IT TO THE EXISTIG PURIFICATION PLANT FOR A FINAL RECTIFICATION ● THE SLUDGES HAVE THE SAME COMPOSITION OF SLUDGES COMING FROM WASTE WATER PURIFICATION PLANTS AND SO CAN BE BLENDED WITH THEM AND FILTERED TOGETHER. ● THE ENCLOSED LAYOUT SHOWS HOW TO INSERT A PSD UNIT INTO AN EXISTING DESLUDGING LINE 17
PSD ® Process: Phosphating Sludges Detoxication
BATH STORAGE
PHOSPHATING BATH
EXISTING PHOSPHATING DESLUDGING LINE ‘TOXIC’ WASTE
SLUDGES
Filter Press
PSD ® UNIT PUR-ALL BATH STORAGE
Ca(OH)2 PH Meter
PHOSPHATING BATH
SLUDGES
‘SPECIAL’ WASTE Filter Press
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NEXT GOALS: PUR-ALL ZERO ZERO Z.L.D. FOR PHOSPHATING LINES
PHOSPHATING OR NANOTECHNOLOGY
RINSE 1
WATER QUALITY • CO3 < 10 ppm • PO4 ≤ 5 ppm • Me ≤ 0,1 ppm • PH 7 • Cond. < 300 µS
To reuse
Evaporator
ALKALINE CLEANING
High Pressure Reverse Osmosis
RINSE 1 Neutralizing
RINSE 2
RINSE 2 ACTIVATION
pH control
Flocculation
PURAL neutralization tank
Filter Press
Retaking tank
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Z.L.D. CASE HISTORY: ELVAL (Coil)
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Z.L.D. CASE HISTORY: METRA (Al Extrusion)
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Z.L.D. CASE HISTORY: ZANUSSI (Appliances)
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Z.L.D. CASE HISTORY: SCATTOLINI (Automotive)
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Z.L.D. CASE HISTORY: BEVCAN (Al beverage cans)
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CIE COMPAGNIA ITALIANA ECOLOGIA SRL Via I° Maggio, 20/22 – San Zenone al Lambro (MI) – Italy Tel: +39.02.9810470 – Fax: +39.02.98175079 www.cieeng.com – info@cieeng.com