verification report n°180098d · tomal/prominent polyrex 1.0 (figure 4) is a turn-key automated...
TRANSCRIPT
INNOVATION
APPLICATION
FORMATION
CARACTERISATION
8, allée Geoffroy Saint Hilaire
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Tél : (33) 05 47 74 69 00
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Verification report n°180098d
Cancels and replaces the previous version from July the 24th, 2018
Pessac, 27/07/2018
Author : Approved by :
ORIGINAL SIGNED
ORIGINAL SIGNED
Claire MICHAUD Claire MICHAUD Inspector ETV technical manager
If Rescoll do not receive any comment from you within 15 days after sending it, Rescoll will consider that the
verification report is accepted by the two sides.
The verification report should not be copied or used without prior agreement of RESCOLL
EU Environmental Technology
Verification pilot programme
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I. INTRODUCTION ........................................................................................... 4
Name of technology ........................................................................................................................................... 4
Name and contact of proposer .......................................................................................................................... 4
Name of verification body and responsible of verification ................................................................................ 5
Organisation of verification including experts, and verification process ........................................................... 5
Deviations from the verification protocol .......................................................................................................... 6
II. DESCRIPTION OF THE TECHNOLOGY AND APPLICATION ............................. 7
Summary description of the technology ........................................................................................................... 7
Intended application (matrix, purpose, technologies, technical conditions) .................................................. 14
Intended application .............................................................................................................................. 14
Matrix ..................................................................................................................................................... 14
Purpose ................................................................................................................................................... 14
Technical conditions ............................................................................................................................... 14
Verification parameters definition .................................................................................................................. 16
III. ACCEPTED EXISTING DATA ....................................................................... 17
IV. EVALUATION ............................................................................................ 18
Calculation of verification parameters including determination of uncertainty ........................................... 18
Evaluation of test quality ............................................................................................................................... 19
Control data .......................................................................................................................................... 19
Audits .................................................................................................................................................... 19
Deviations .............................................................................................................................................. 20
Verification results (verified performance claim) .......................................................................................... 22
Description of statistical methods used ................................................................................................ 22
Verification parameters ........................................................................................................................ 22
Additional parameters, with comments or caveats where appropriate ............................................... 31
Recommendations for the statement of verification .................................................................................... 31
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V. QUALITY ASSURANCE ................................................................................ 33
VI. REFERENCES ............................................................................................. 33
VII. APPENDIX 1 : QUICK SCAN – VERIFICATION PROPOSAL ........................... 34
VIII. APPENDIX 2 : SPECIFIC VERIFICATION PROTOCOL .................................. 34
IX. APPENDIX 3 : AMENDMENT AND DEVIATION REPORT FOR VERIFICATION
..................................................................................................................... 34
X. APPENDIX 4 : TEST PLAN ........................................................................... 34
XI. APPENDIX 5 : TEST REPORT ..................................................................... 34
XII. APPENDIX 6 : TEST SYSTEM ASSESSMENT REPORT .................................. 34
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Environmental Technology Verification (ETV) is an independent (third-part) assessment of the performance of a
technology or a product for a specified application under defined conditions and quality assurance.
RESCOLL is an accredited Verification Body (ISO 17020, type A) for the three following technology areas :
1. Water treatment and monitoring
2. Materials, waste and resources
3. Energy technologies
Verification report compiles and summarises all information relevant for the verification.
Name of technology
The technology studied in this verification is Hydrotech drumfilter HDF2001-1S with addition of floculant.
Name and contact of proposer
Veolia water technologies AB - Hydrotech
Contact : Carles Pellicer-Nachèr
Téléphone : +46 722 34 70 55
Courriel : [email protected]
I. Introduction
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Name of verification body and responsible of verification
RESCOLL, 8 allée Geoffroy Saint Hilaire CS30021, 33615 PESSAC, FRANCE
ETV Technical Manager : Claire Michaud
Phone : 00 33 (0)5 47 74 69 00,
Email : [email protected]
ETV inspector : Claire Michaud
Phone : +33 (0)5 47 74 69 00,
Email : [email protected]
Organisation of verification including experts, and
verification process
The verification process was leaded by RESCOLL.
RESCOLL was in charge of :
- writing the specific verification protocol with the contribution of technical experts,
- writing the verification report,
- writing the verification statement,
- exchanges with European Commission.
The technical expert was :
- Mr SAMUELSSON Oscar, IVL, [email protected]
Test management has been performed by Hydrotech on a pilot line of Sjölunda water treatment plant in Sweden.
Analytical tests have been performed by Veolia Water Technologies AB, located in Lund, Sweden.
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Relationships between organizations are described on the following scheme.
1.
2.
Deviations from the verification protocol
Deviations from specific verification protocol are described in paragraph IV.2.3.
Figure 1 : Organisation of the verification
Verification Body
Rescoll
European commission
Technical expert
Oscar Samuelsson, IVL Proposer
Hydrotech - Veolia
Test Body
Hydrotech - Veolia
Analytical laboratories
Veolia Water Technologies AB,
Lund
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Summary description of the technology
The technology studied is Hydrotech drumfilter HDF2001-1S implemented with addition of flocculant.
Drawing of the technology is available in appendix 2 of specific verification protocol.
The size of the cloth installed in Sjölunda pilot line is 100 microns.
ETV verification has been performed on a pilot line of Sjölunda Waste Water Treatment Plant, Sweden. A
description of Sjôlunda waste water treatment plant was put in appendix 1 of specific verification protocol.
The drumfilter is implemented after screening, fat and grit removal steps as it is described in the following
scheme.
Figure 2 : Scheme of water pilot line
Bellow are described the equipment implemented in the pilot line.
II. Description of the technology and application
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1. Influent pump
The centrifugal pump (Flygt NS 3102.160 SH-256, Figure 3) is used to deliver flows from 5 to 30 m3/h by
controlling the rotation speed of the pump rotor with a frequency controller (Parker AC30). Flows can be set to
a certain value or can be set to simulate a user-defined flow pattern. Water is pumped from the end of the
aerated sand grit, before chemicals are dosed prior to the primary clarifier.
Figure 3 : Centrifugal pump used at the pilot
2. Drumfilter HDF2001-1S
A drumfilter (HDF2001-1S, Hydrotech) with a cloth of 100 µm pores features level control, and an backwashing
system in order to prevent blockage of the cloth. Technical water (max 0,5 L/s) is used for backwashing the filter.
Drawing of the technology is available in appendix 2 of specific verification protocol.
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3. Coagulation tank
CONFIDENTIAL
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4. Flocculation tank
CONFIDENTIAL
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5. Polymer preparation unit
Tomal/Prominent Polyrex 1.0 (Figure 4) is a turn-key automated system for batchwise preparation and metering
of polymer solutions, either powdered or liquid chemicals. PolyRex uses a step-by-step mixing system to
effectively hydrate and mix the polymer to a homogenous and fully activated polymer solution. Powder polymer
is dosed into a tank with tap water by a multiscrew feeder in order to achieve a concentration of 0.1% active
polymer. This solution is maturated with a mixer for one hour and later discharged in a storage tank, where it is
pumped into the main treatment line with a diaphragm dosing pump.
Figure 4 : Tomal polymer preparation unit
The polymer used is H6358: a cationic medium charge high molecular weight powder flocculant supplied by
Hydrex.
6. Polymer dosing
DME 940-4 AR-PP/V/G-S-32A2A2F is a diaphragm dosing pump supplied by Grundfos able to deliver up to 940
L/h at 4 bar (Figure 5). Pressure loading valve is installed in the dosing line to even the dosed flow. The drive
technology and microprocessor control make sure that liquids are dosed precisely and with low pulsation, even
when the pump is operating with high viscosity or degassing liquids. The capacity of the DME is regulated by
automatic adjustment of the motor speed during the discharge stroke, and by fixed suction stroke speed.
Polymer prepared in the polymer preparation unit is dosed directly in the overflow funnel of the coagulation
tank in order to achieve proper dispersion and a concentration of active polymer in the range 2-6 mg/L.
The concentrations of active metal or active polymer can be set by the user at a fixed value or adjusted by the
programmed controller, based on the signal from the turbidity probes.
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Figure 5 : Polymer dosing pump
7. Turbidity meters
Solitax SC ts-line immersion probes (LXV423.99.00100, Figure 6) are installed in the pumping point, flocculation
tank, and filtrate tanks in order to monitor the removal efficiencies of particulate matter. The integrated
automatic wiper allows the probe to remain clean.
Figure 6 : Turbidity probe installed in the flocculation tank
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8. Flow meters
Promag W 400, 5W4C80 flow meters (DN80, Figure 7) supplied by Endress and Hauser are installed in the inflow
of the Drumfilter and effluent from the Discfilter in order to monitor the water losses in the installation, if any.
The influent flow is used in order to control the rotation speed of the influent pump and the dosing rate of the
flocculant dosing pumps.
Figure 7 : Flow meter installed upstream the drumfilter
9. Measure of SS to control dosage
It is a Solitax turbidity probe (Hach Lange). Infrared Duo scattered light technique for color-independent turbidity
measurement Turbidity in accordance with DIN EN ISO 7027.
10. Backwash water treatment
Backwash water is pumped back to a sludge tank, and later digested in the plant for biogas production.
The Drumfilter is backwashed when required with technical water at max 0.5 L/s. The filter is backwashed
seldomly, so the actual consumption is below 0.5 L/s. Daily consumptions can be monitored. Tapwater is also
used for preparation of the polymer stock solution.
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Intended application (matrix, purpose, technologies,
technical conditions)
Intended application
Hydrotech drumfilter HDF2001-1S is used as primary treatment stage for raw municipal wastewater (after
mechanical treatment, i.e. removal of sand, grit and grease) to enable removal of particulate matter.
The high level of carbon extraction of the technology induces high level of biogas production coming from sludge
digestion, so, a good overall environmental footprint.
Matrix
The technology is intended to treat wastewater.
The verification will be performed on a pilot line of Sjölunda Waste Water Treatment Plant. The full address is:
Sjölunda avloppsreningsverk
Spillepengsgatan 15-17
211 24 Malmö
Sweden
The water is received from the greater part of Malmö, together with Burlöv and parts of the municipalities of
Lomma, Staffanstorp and Svedala.
Purpose
The purpose of the technology is to perform a first treatment of suspended solids, BOD, P and COD of the
wastewater with a good overall environmental footprint.
The technology is implemented after sand, grit and grease removal.
Technical conditions
Performance parameters will depend on several technical conditions.
The most important one are described as operational parameters in the paragraph Verification parameters
definitionII.3.
Two scenarios were tested with varying flow conditions varying flow between 6-30m3/h (average is 15m3/h).
For technical reasons it was not possible to use the real inlet flow, so, the flow pattern was fixed by Hydrotech.
The flow pattern is presented in the Figure 8.
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Figure 8 : Flow pattern for varying flow scenarios
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Verification parameters definition
Here is the table summarizing the parameter table defined in the specific verification protocol.
Parameter Unit Test or measurement
method(s) Frequency
PERFORMANCE PARAMETERS
Concentration of total suspended
solids after Hydrotech drumfilter
HDF2001-1S
mg/L or g/m3 Direct analyses
Sensor and registration Continuous
OPERATIONAL PARAMETERS
Concentration of total suspended
solids before Hydrotech drumfilter
HDF2001-1S
mg/L or g/m3 Direct analyses
Sensor and registration Continuous
Quantity of coagulant before
Hydrotech drumfilter HDF2001-1S
Unit of quantity
and unit of
volume
Calculation from dosed
volume Continuous
Quantity of coagulant after Hydrotech
drumfilter HDF2001-1S
Unit of
concentration Sampling and lab analysis Once a week
Quantity of flocculant before
Hydrotech drumfilter HDF2001-1S
L/h or unit of
online
measurement
Sampling and lab analysis Once a week
Flow before hydrotech drumfilter
HDF2001-1S L/unit of time Flowmeter Continuous
Water temperature °C Temperature sensor and
registration
Continuous
measurement
Concentration of BOD before
Hydrotech drumfilter HDF2001-1S mg/L or g/m3
Sampling and lab analysis
Samples should be freezed
before sending to external
lab
Once a week
Concentration of BOD after Hydrotech
drumfilter HDF2001-1S mg/L or g/m3
Sampling and lab analysis
Samples should be freezed
before sending to external
lab
Once a week
Concentration of TOC before
Hydrotech drumfilter HDF2001-1S mg/L or g/m3
Sampling and lab analysis
Samples should be freezed Once a week
Concentration of TOC after Hydrotech
drumfilter HDF2001-1S mg/L or g/m3 Samples should be freezed Once a week
Concentration of pH before Hydrotech
drumfilter HDF2001-1S / Sampling and lab analysis Once a week
Concentration of pH after Hydrotech
drumfilter HDF2001-1S / Sampling and lab analysis Once a week
Concentration of alkalinity before
Hydrotech drumfilter HDF2001-1S mg/L or g/m3
Direct analysis
Sampling and lab analysis Once a week
Concentration of alkalinity after
Hydrotech drumfilter HDF2001-1S mg/L or g/m3
Direct analysis
Sampling and lab analysis Once a week
Concentration of total phosphorus
before Hydrotech drumfilter HDF2001-
1S
mg/L or g/m3 Sampling and lab analysis
Samples should be freezed Once a week
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Parameter Unit Test or measurement
method(s) Frequency
Concentration of total phosphorus
after Hydrotech drumfilter HDF2001-
1S
mg/L or g/m3 Sampling and lab analysis
Samples should be freezed Once a week
ENVIRONMENTAL PARAMETERS
Energy consumption
MJ or kWh per
unit of water
treated or per
unit of time
Energy measurement
performed by Hydrotech Continuous
Consumption of backwash water
L per unit of
water treated or
per unit of time
Flowmeter Continuous
Consumption of cleaning materials L or g
Weighting and registration
of nature, quantity of
cleaning materials and date
At each cleaning
step
All the tests have been implemented in the frame of verification and no existing data were accepted.
III. Accepted existing data
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Calculation of verification parameters including
determination of uncertainty
Initially, it was planed to use online continuous measurement of TSS.
The online sensors that have been used during the test for turbidity measurement is a Hach Solitax SC
TS-line (for more information see test plan in Appendix 4 : Test plan). The value from the Solitax SC-
probes has been used to estimate the total suspended solids in the water (TSS). To do this a conversion
factor between TSS and turbidity has been calculated from grab samples collected on a weekly basis
during the test period. The conversion factor was then used to estimate the TSS-concentration in the
water from the online-sensors.
We can see in the Figure 9 the curves used for the calculation of TSS performance parameter.
Figure 9 : Correlation between NTU and TSS used for calculation of performance parameter
The on-line values were used to assess the real-time performance of SS-control. The lab samples were used to evaluate the overall weekly SS-reduction. Measurement technical difficulties with the SS-sensor made it infeasible to use the on-line data for evaluating the exact SS-reduction although the time trends were accepted to be valid.
y = 1,9967xR² = 0,9146
y = 1,4579xR² = 0,9239
0
100
200
300
400
500
600
0 50 100 150 200 250 300
TSS
(mg/
l)
Turbidity (NTU)
Influent
Effluent
IV. Evaluation
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Evaluation of test quality
Control data
Rescoll verified the accreditation scope of the laboratory Veolia Water Technologies AB. He is accredited for the
following tests :
- BOD
- TOC
- Tot P
- TSS
- pH
Veolia Water technologies is not accredited for alkalinity tests but results were accepted without quality system
assessment.
A test plan has been performed by Veolia before start of the tests. He is described in Appendix 4 : Test plan.
Audits
One test system audit was performed by Mr Oscar Samuelsson before the beginning of the tests on December
7th, 2017.
The test system assessment report is in Appendix 6 : Test system assessment report.
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Deviations
The following table shows deviations between tests implementation and specific verification protocol.
Paragraph of the specific verification
protocol
Description of the deviation Criticality Conclusion
II.1 Summary description of the technology Initially, hydrotech planed to use floculant and
coagulant but there was no use of coagulant.
Not critical The modification was accepted.
V.1 Test design
3 scenarios of tests were initially planed.
Each of these scenarios should have been
tested four three types of inflow.
During the timeframe of the program, it was only
possible to perform 2 scenarios with 2 types of
flow.
The scenario “Maintain the effluent at a
continuous 25 NTU concentration despite daily
variations using chemicals” has not been studied.
Not critical The modification was accepted because the low flow
were the most beneficial to the proposer. So, if results
are good for other types of inflow, results should be good
also for low flow.
Deletion of a scenario of test was possible because
results for other scenarios are good. And, it does not
affect the environmental added value of the technology.
V.5.2 Test report All results have been summarized and sent to
Rescoll in excel sheets but no test report has been
written.
Not critical The modification was accepted because the test plan was
very complete and all results were sent in excel sheets.
V.1 Test design
Time period of each test should be 3 weeks
The test period of the scenario « 50 NTU with a
varying flow » was of 1.5 week.
Not critical The deviation was judged as not critical because during
the period of test, there was one period of high flow
which was well controlled by the Hydrotech drumfilter
HDF2001-1S.
V.1 Test design
Continuous measurement
It was planed to use continuous sensors
measurement for TSS performance claim.
Not critical There were continuous measurements of NTU
performed with sensor Hach Solitax SC TS-line of
turbidity.
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We checked correlation between NTU and TSS and finally
used the lab measures for the performance parameter
because they were more reliable.
V.1 Test design
Continuous measurement
Calculation of final parameters should have been
based on the whole time period of tests but we
excluded period of time with technical issue
(power failure, …)
Not critical This situation are not due to the technology itself but to
the pilot line scale.
Table 1 : List of deviations between test realisation and specific verification protocol
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Verification results (verified performance claim)
Description of statistical methods used
Mean has been calculated with this formula :
𝑥 = ∑ 𝑥𝑖
𝑛𝑖=1
𝑛
With 𝑥 : the average of values, n : number of tests and 𝑥𝑖 : test value
Standard deviation has been calculated with this formula :
𝜎 = √∑ (𝑥𝑖 − 𝑥)2𝑛
𝑖=1
𝑛 − 1
With σ : standard deviation, 𝑥 : average of values, n : number of tests et 𝑥𝑖 : value of test i.
Verification parameters
The verification parameters were controlled for two scenarios and each of these two scenarios for two types of
flow.
Results for each scenarios are showed in the following table.
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a) Scenario 1 : Maintain the effluent at a 50 NTU concentration corresponding to a TSS-removal of 60% or
higher of the average TSS concentration in the effluent despite daily variations using chemicals
(1) At constant maximum flow = Qmax
For this test scenario, the time period was of 6 weeks.
The results are showed in the Table 1.
Parameters After or before Hydrotech
drumfilter Mean Value Number of measures
PERFORMANCE PARAMETER
Total suspended solids reduction After 76%
standard deviation = 8% 21
OPERATIONAL PARAMETERS
Quantity of flocculant Before 70.4 L/h
Online measurement logged with an interval of 10 seconds
during 43 days.
Period of time with a technical issue (power failure, frozen pipe,
no polymer dosing) were excluded from the mean.
Inlet flow Before 29.9 m3/hour
Standard deviation = 1.1%
Online measurement logged with an interval of 10 seconds
during 43 days.
Period of time with a technical issue (power failure, frozen pipe,
no polymer dosing) were excluded from the mean.
Water temperature / 14.4°C
Online measurement logged with an interval of 10 seconds
during 43 days.
Period of time with a technical issue (power failure, frozen pipe,
no polymer dosing) were excluded from the mean.
Measure of pH Before 7.4 20
After 7.6 20
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Concentration of alkalinity Before 332 21
After 292 21
Concentration of BOD
Before 248
(Min = 170, Max = 290) 6
After 141
(Min = 68, Max = 260) 6
Concentration of total phosphorus
Before 7.4
(Min = 5.9, Max = 11) 6
After 5.1
(Min = 4.1, Max = 7) 6
Concentration of TOC
Before 155
(Min = 110, Max = 200) 6
After 93.2
(Min = 67, Max = 120) 6
ENVIRONMENTAL PARAMETERS
Energy consumption of the drumfilter
(including drumfilter and chemical
equipment)
/ 130Wh/kg TSS removed
Online measurement logged with an interval of 10 seconds
during 43 days.
Period of time a technical issue due to pilot line scale were
excluded from the mean.
Percentage of operation time the filter
has been in backwash mode / 42%
Online measurement logged with an interval of 10 seconds
during 43 days.
Period of time with a technical issue a technical issue due to pilot
line scale were excluded from the mean.
Consumption of cleaning materials / 0.5 Liter 30%HCl
0.75 Liter 2.7% NaClO
Table 1 : Parameters results for scenario 1 at constant maximum flow
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(2) At varying flow similar to true influent = Qavg
For this scenario of tests, the time period was of 9 days.
The results are showed in the Table 2 bellow.
Parameters After or before Hydrotech
drumfilter Mean Value Number of measures
PERFORMANCE PARAMETER
Total suspended solids reduction After 82%
Standard deviation = 2% 5
OPERATIONAL PARAMETERS
Quantity of flocculant Before 41.9 L/h
Online measurement logged with an interval of 10 seconds
during 9 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Inlet flow Before Between 6m3/hour
and 29,9 m3/hour
Online measurement logged with an interval of 10 seconds
during 9 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Water temperature / 18,6°C
Online measurement logged with an interval of 10 seconds
during 9 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Measure of pH Before 7,26 5
After 7,38 5
Concentration of alkalinity Before 358,4 5
After 328,8 5
Concentration of BOD Before No measures
After No measures
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Concentration of total phosphorus Before No measures
After No measures
Concentration of TOC Before No measures
After No measures
ENVIRONMENTAL PARAMETERS
Energy consumption of the full plant
(including drumfilter and chemical
equipment)
/ 212 Wh/kgTSS removed
Online measurement logged with an interval of 10 seconds
during 9 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Percentage of operation time the filter
has been in backwash mode / 10%
Online measurement logged with an interval of 10 seconds
during 9 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Consumption of cleaning materials / No consumption of cleaning
materials /
Table 2 : Parameters results for scenario 1 with varying flow
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b) Scenario 2 : TSS removal measured as daily average without using chemicals
(1) At constant maximum flow = Qmax
The results are showed in the Table 3 bellow.
Parameters After or before Hydrotech
drumfilter Mean Value Number of measures
PERFORMANCE PARAMETER
Total suspended solids reduction After 43%
14
OPERATIONAL PARAMETERS
Quantity of flocculant Before No use of chemicals /
Inlet flow Before 30m3/hour
Online measurement logged with an interval of 10 seconds
during 25 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Water temperature / 14.9°C
Online measurement logged with an interval of 10 seconds
during 25 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Measure of pH Before 7.5 14
After 7.5 14
Concentration of alkalinity Before 350.6 14
After 337.7 14
Concentration of BOD
Before 212.5
(Min = 160, Max = 230) 4
After 151
(Min = 94, Max = 190) 4
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Concentration of total phosphorus
Before 6.4
(Min = 5.6, Max = 7.5) 4
After 5.6
(Min = 5.3, Max = 6.4) 4
Concentration of TOC
Before 115
(Min = 110, Max = 120) 4
After 90.8
(Min = 64, Max = 110) 4
ENVIRONMENTAL PARAMETERS
Energy consumption of the drumfilter / 8.7 Wh/m3
84.2 Wh/Kg TSS removed
Online measurement logged with an interval of 10 seconds
during 25 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Percentage of operation time the filter
has been in backwash mode / 34%
Online measurement logged with an interval of 10 seconds
during 25 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Consumption of cleaning materials /
Cleaning of filter media with
30%Hcl and 2.7% NaClO
Recorded in the logbook
Use of cleaning material 2 times during the test period
Table 3 : Parameters results for scenario 2 at constant maximum flow
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(2) At varying flow similar to true influent = Qavg
The results are showed in the Table 4 bellow.
Parameter After or before Hydrotech
drumfilter Mean Value Number of measures
PERFORMANCE PARAMETER
Total suspended solids reduction After 51%
(from 11% to 70%) 21
OPERATIONAL PARAMETERS
Quantity of flocculant Before No use of chemicals /
Inlet flow Before Between 6 m3/hour
and 29.9 m3/hour
Online measurement logged with an interval of 10 seconds
during 48 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Water temperature / 16°C
Online measurement logged with an interval of 10 seconds
during 48 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Measure of pH Before 7.4 21
After 7.4 21
Concentration of alkalinity Before 358.9 21
After 344.5 21
Concentration of BOD
Before 235
(Min = 200, Max = 290) 6
After 146.7
(Min = 110, Max = 170) 6
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Concentration of total phosphorus
Before 6.6
(Min = 5.4, Max = 8) 6
After 5.8
(Min = 4.6, Max = 7) 6
Concentration of TOC
Before 135
(Min = 110, Max = 150) 6
After 130
(Min = 100, Max = 200) 6
ENVIRONMENTAL PARAMETERS
Energy consumption of the drumfilter / 14.1 Wh/m3
118.5 Wh/kg TSS removed
Online measurement logged with an interval of 10 seconds
during 48 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Percentage of operation time the filter
has been in backwash mode / 14%
Online measurement logged with an interval of 10 seconds
during 48 days.
Period of time with a technical issue due to pilot line scale were
excluded from the mean.
Consumption of cleaning materials / 0.5 liter 30%HCl
0.5 liter 2.7% NaClO /
Table 4 : Parameters results for scenario 2 with varying flow
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Additional parameters, with comments or caveats where appropriate
No additional parameters was defined.
Recommendations for the statement of verification
The proposer may use the Statement of Verification for marketing purposes and for official approvals. It may be
included in the technical documentation of the verified technology. The proposer shall make the statement
available in full and shall not use parts of the statement for any purpose.
The proposer may refer to the Statement of Verification as follows: The XX technology was verified in the
framework of the EU Environmental Technology Verification (ETV) pilot programme for the application AA
(including purpose and matrix9) by BB Verification Body on DD.MM.YYYY. The Statement of Verification has been
registered under number NN and is accessible at the following address:
https://ec.europa.eu/environment/ecoap/etv (where appropriate, replace this address with the one of the
dedicated website designated by the Commission services.)
The proposer shall not use the ETV logo alone either on products or on published (printed, web or other) matter
other than the Statement of Verification. The ETV logo may be used on publications together with the reference
to the Statement of Verification, as provided above, as long as the meaning of ETV is correctly reflected by the
publication, avoiding in particular any confusion with endorsement or approval of the technology.
The proposer shall ensure that the verified technology continues to conform to the published Statement of
Verification. This also follows the provisions of ISO 14034, Section 5.6.2 'Validity of the verification
report/verification statement'. If any of the following changes to the verified technology have occurred, the
proposer shall report to the Verification body with the data needed to evaluate whether the conditions for
verification have changed:
change of ownership;
design changes;
change of intended application or operational conditions;
other changes likely to modify the performance results reported in the Statement of
Verification.
Substitution of one part with another with the same documented specifications is not considered a change,
unless it affects the environmental added value or one of the parameters reported in the Statement of
Verification.
The Verification Body shall evaluate reported changes and data at the cost of the proposer. If, after evaluation,
the Verification Body concludes that the conditions for verification have changed, a new verification procedure
shall be engaged by the proposer for this technology or alternatively, the Statement of Verification shall be
withdrawn.
The Statement of Verification shall be withdrawn by the Verification Body if misused by the proposer. Misuse is
defined as violation of the conditions of EU ETV pilot programme verification.
In the case of withdrawal, the Statement of Verification and verification report shall be removed from all web
sites.
In the EU ETV pilot programme, no expiration date is established on the Statement of Verification. However, the
proposer may request that the Statement of Verification and associated report be withdrawn from the web if,
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for example, the technology is no longer on the market. This request should be made in writing to the Verification
Body, committing to no future use of the Statement of Verification, reference to it or the ETV logo. The
verification Body shall communicate this request to the Commission services and the Statement of Verification
and associated report will be consequently withdrawn from the ETV website.
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The quality management process of the verification is ensured thanks to :
Review of the documents (presented in the Table 5)
Assessment of the test system
ETV inspector ETV technical
manager
External technical
experts
Proposer
Specific
verification
protocol
/ Review Review Review
Test plan Review / Review Review
Test report Review / Review Review
Verification report / Review Review Review
Statement of
verification
/ Review Review Review
Table 5 : Review of the documents process
A test system audit has been performed by Mr Oscar SAMUELSSON as a technical expert before the beginning of
the tests.
Furthermore, Rescoll applies for the ETV verification all the requirements of ISO 17020 standard and GVP v1.2,
2016. Rescoll is accredited by the French accreditation body (COFRAC) to perform ETV verifications.
[1] COFRAC, «http://www.cofrac.fr/,» [En ligne].
V. Quality assurance
VI. References
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This is described in paragraph IV.2.3.
No test report was provided by Hydotech.
VII. Appendix 1 : Quick Scan – Verification proposal
VIII. Appendix 2 : Specific verification protocol
IX. Appendix 3 : Amendment and deviation report for
verification
X. Appendix 4 : Test plan
XI. Appendix 5 : Test report
XII. Appendix 6 : Test system assessment report