from green dream to reality - kruger · from green dream to reality . ... •internalize chemical...
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![Page 1: From Green Dream to Reality - Kruger · From Green Dream to Reality . ... •Internalize Chemical expertise for Veolia Group within Hydrex community •Develop new opportunities by](https://reader034.vdocuments.net/reader034/viewer/2022042116/5e93c5457c047803bc3672e3/html5/thumbnails/1.jpg)
G, Delaisse; E, Tripard Hydrex Green Team – VWS Support Paris
From Green Dream to Reality
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Who we are…
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Hydrex….
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Hydrex is….
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Mission
• Veolia WaterTech treatment additives brandname
• Build global credibility/recognition on the market place as Global Solutions Provider
Vision
• Develop Water Total Solutions to the industrial and Municipal Markets worldwide
Strategy
• Internalize Chemical expertise for Veolia Group within Hydrex community
• Develop new opportunities by Innovations
We are more than an equipment company.
We are more than a specialty chemicals company. We offer a total water solution.
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Why?
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Veolia …. Green initiative
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Drivers for migration to natural polymers
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Regulation Environmental Strategic Commercial
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How?
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Veolia …. Green initiative
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Surface water
Clarification Removal of suspended solids,
dissolved organic matter, color
Filtration
(UF or sand filters) Polishing
Desinfection Elimination
bacteria and viruses
Coagulant
Floculant
Chlore
Context for Hydrex… Development of a range of bio-based products
Commitment for Green chemistry Alternatives to the use of synthetic products
Floculants
Use of anionic polyacrylamides ballasted flocculation Legislation restriction regarding the content of acrylamide monomer in the DW
Targets for Actiflo app’s
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8 -
Sources of bio-polymers
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Screening result in jar-test since 2008 ~ 80 products tested
Actilfo ® pilot trial @ 60 m/h ~ 20 products tested Various types of water (OM, soft/hard, turbidity, …)
=== > Focus on industrial potato starch
Since 2010 – Exclusive partnership with starch producer Abundant & cheap product Versatile product (broad potential of modification) Easy solubility (cold water soluble) Authorized in DW application (ANSI 60, NF EN 1406) Not compete with the food chain Non-GMO potato Food grade qualtiy
KPI’s elaboration
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Real alternative to PAM ?
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Activated starch….
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Actiflo® - Pilot testing in Annet/Marne (France)
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Actiflo® - Pilot testing in Annet/Marne (France)
Actiflo 1 AN923
UF1
SF1 VHS
SF2
Actiflo 2 Hydrex starch
UF2
SF3 TGV
SF4
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Dosage 0,6 to 0,8 ppm Coag/Floc = 8 min
SF tow layers 13m/h Granulometry 0,75 – 1,35
mm
Backwash sequence modified Mêmes performances qu’avec les produits de
Actiflo® - Pilot testing in Annet/Marne (France)
PAM = Hydrex 3842
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Dosage 0,6 à 0,65 ppm Coagulation > 5 min
Two layers SF 13m/h Granulometry 0,75 – 1,35
mm
Turbidité eau filtrée = 0,15-0,2 NTU
Actiflo®’s clarified water impact on SF
40-50h cycle times (UFRV 300-350 m3 / m2 / m)
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Dosage 0,6 à 3,8 ppm Coagulation > 5 min
Backwash sequence modified
Operating time without CIP> 1500h
Actiflo®’s clarified water impact on UF
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Physico-chemical analysis of water (1/2)
water analysis treated Hydrex3842 (3ppm)
Green Floculant, impact on the clarified water ?
Physico-chemical analysis of water (2/2)
Analysis PAM vs Hydrex3842 (2ppm)
No difference on the whole treatment line => What about biological impact?
No increase of BDOC in the clarified water?
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Biofilm development kinetics
Total Viable seeds
Total bacteria (epifluorescence DAPI)
« Population » outlet of the Actiflo and SF: H3842 = PAM
Green Floculant, biofilm generator?
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Green floculant versus PAM for cold water temperature
St. Lawrence River (Quebec, Canada).
Alkalinity (80 mg CaCO3/L), pH (≈ 8.0), TOC (< 3 mg C/L), Turbidity (2.5 - 3.5 NTU).
Alum dose=0.13 meq./L, microsand=4 g/L, G=165 s-1, 3 minutes of settling.
07/11/2014 Direction or Department name 18
0.0
1.0
2.0
3.0
4.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
SW
tu
rbid
ity (
NT
U)
Dose (mg/L)
21˚C
1˚C
PAMp-value= 0.43
A
0.0
1.0
2.0
3.0
4.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Dose (mg/L)
21˚C
1˚C
H3841p-value= 0.04
B
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Hydrex Meeting ⁞ Kraków 2013
PAM
Hydrex 3841
Actiflo: 375 m3/h per Treatment Line
Line 1
Line 2
Application - DWP La Billerie (France – Dpt 35)
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Dose rate
Line 1 : 0,25-0,35 g/m3 AN905
Line 2 : 0,4 g/m3 de AN905
0,6 to 0,8 g/m3 of Hydrex 3841
Line treatment Hydrex 3841 vs AN905 • water treated on Line-2 from November 2012 to May 2014 is 2,515,000 m3.
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Raw water LINE 1 – Settled water
LINE 2 - Settled water
Number of
samples= 42
Turbidity (NTU)
DOC (mg/L)
Iron (µg/L)
Turbidity (NTU)
DOC (mg/L)
Iron (µg/L)
Turbidity (NTU)
DOC (mg/L)
Iron (µg/L)
Average 8,8 5,5 324 0,54 2,0 289 0,61 1,9 302
Av. Deviation
6,8 0,7 285 0,1 0,3 88 0,2 0,2 62
Application - DWP La Billerie (France – Dpt 35)
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No increase of BDOC, HAA and THM in clarified water
No impact on the SF filtration cycle (UFRV)
Application - DWP La Billerie (France – Dpt 35)
UFRV – Sand filter
UFR
V (
m3
/m2
)
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Application - DWP La Chesnaie (France - 49)
Alluvial aquifer of the river Loire
Start-up: Oct 2013
Actiflo® Carb – 500 m3/h
Aeration; KMnO4; AC-P; PAX
Dosage : 1,5 g/m3 d’Hydrex3841
ARS Analysis
TOC < 1,5 mg/l
Mn < 15 µg/l
Al < 50 µg/l
0
0,5
1
1,5
2
2,5
3
3,5
4
05-02-14 05-03-14 05-04-14 05-05-14
TOC
(m
g/L)
TOC in/out La Chesnaie plant
Entrée
Sortie
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DWP Vitré Lagrange:
• 14.000 m3/day
• Start-up: April-2014
DWP Sablé Sur Sarthe
• 28.800 m3/day
• Start-up: December-2014
DWP Cholet
• 33.600 m3/day
• Start-up: January-2015
DWP Romorantin-Lanthenay
• 11.000 m3/day
• Start-up: February-2015
DWP Nantes
• 192.000 m3/day
• Start-up: 2016
DWP Trégat
• Start-up: 2016
Other Green Actiflo references in France
I love the Actiflo...
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Feedwater: Valmayor reservoir,
Actiflo®
• 6 m3/s (40mh) - 4 lines for potable water production
• 2 lines package plant for sludge treatment of water production line
Valmayor, Madrid (Spain)
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Initial treatment with other starch + polyDADMAC
Results in comparison with the initial polymer
Elimination of the polyDADMAC
Decreasing dose rate
– up to 30% on the potable line
– up to75% on the sludge line
SF cycle filtration increasing by 2
Better stabilityof the dewatering installation
Hydrex 3841 applied since Sep-2013
Valmayor, Madrid (Spain)
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DWP RIO ERESMA (Segovia): • Two ACTIFLO lines (700 m3/h) – River water
• Close SF (VWT – I)
DWP RACONS (Denia) • ACTIFLO for RO pretreatment (15.000 m3/j) – River
water and sea water intrusion period
DWP Trapiche (Malaga) • Actiflo + Aquazur – River water (episode of high
turbidity)
Other Green Actilfo references in Spain
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Danemark - Ørestaden
Actiflo for surface water filtration
In operation with Hydrex 3841 since October 2013
07/11/2014 Direction or Department name 27
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From Dream to Reality …
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Conclusion
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Conclusions:
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• Wide range of use
• Superior effectiveness to all other biosourced flocculants
• Technical-economical performance compared to polyacrylamides
• Excellent resistance with cold water to be clarified (down to 2°C)
• Compatibility in the flocculation phase with Powdered Activated Carbon
• No biofouling impact on a downstream membrane separation (MF or UF)
• Residual Biodegradable Dissolved Organic Carbon (BDOC) is negligible in the treated water
• Complies with regulators’ standards
• No THM/HAA* impact on the treated water
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Tak !
Være grøn !!!