Innovative recovery waste sludgeмон.бг/upload/10542/22May2014_3_Ribarova.pdf · BU Irina...
Transcript of Innovative recovery waste sludgeмон.бг/upload/10542/22May2014_3_Ribarova.pdf · BU Irina...
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Innovative P‐recovery from waste sludge
Collaborative aspects and main results
Presented by: Assoc. Prof. Irina Ribarova, UACEG, Sofia, BulgariaAssoc. Prof. Hussein Jemendjiev, BU, Bulgaria
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Structure of the presentation
1. Project overview
2. Collaborative aspects
3. Brief overview of the research results
BSRP midterm meeting 22 May 2014 Sofia
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1. Project overview
BSRP midterm meeting 22 May 2014 Sofia
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The importance of the phosphorus recovery
• Irreplaceable natural resource;• It disappears from the food chain as
animal manure, human excreta and organic waste;
• Largest part mining phosphate rock are located in Morocco, the US and China. In Europe hardly any raw phosphorus is available, except for a very small quantity in Finland. Increasing prices
• Closing cycles of matters is an important measure towards higher independence and better sustainability.
BSRP midterm meeting 22 May 2014 Sofia
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The concepts of the project
BSRP midterm meeting 22 May 2014 Sofia
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
WP2 ‐ Seawater treatment
WP3 ‐ Sludge desintegration
WP7 ‐ Dissemination
WP4 ‐ Metal separation
WP5 ‐ MAP crystallization, lab and bench scale
WP6 ‐ Technology evaluation
WP / Actionproject month
Duration (entire project) Duration of entire project
WP1 ‐ Quantification 1
5
2
3 4
9
8
7
6
Timeline
BSRP midterm meeting 22 May 2014 Sofia
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2. Collaborative aspects
BSRP midterm meeting 22 May 2014 Sofia
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Partners
BSRP midterm meeting 22 May 2014 Sofia
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Partners together
BSRP midterm meeting 22 May 2014 Sofia
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Project structure – responsible partners
UACEG
FHNW
BU
Irina RibarovaRalitsa LambevaSonya Dimitrova
Valentin NenovBogdan BonevHussein JemendjievGergana Peeva
Thomas WintgensClaudia NiewerschKirsten Remmen
WP 1
WP 2
WP 4
WP 5
WP 3
WP 6
WP 7
WP6 – Technology evaluationWP7 ‐ Dissemination
BSRP midterm meeting 22 May 2014 Sofia
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Collaborations: Project meetings (3 hold, 1 forthcoming) and Exchange visit
BSRP midterm meeting 22 May 2014 Sofia
Sofia, February 2013, January 2014
Burgas, July 2014
BaselJuly 2013
Exchange: Basel to Burgas (2 researchers, 10 days, July 2013)
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Other collaborations
BSRP midterm meeting 22 May 2014 Sofia
BaselBasel
Basel
Sofia
Burgas
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Summary of the collaborative activities
• Mutual learning ‐ exchange of knowledge and ideas, discussions for overcoming of the difficulties;
• Better planning of the research needs and steps by joint efforts;
• Sharing of techniques and research methods;• Sharing of laboratories – overcoming the need to equip every laboratory
BSRP midterm meeting 22 May 2014 Sofia
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Next collaboration steps
• Already approved International Exploratory Workshops (will be financed by the Swiss National Science Foundation)
• 24‐26 November 2014 in Basel
• The topic: “Phosphorus recovery technologies: from labs to practice”
BSRP midterm meeting 22 May 2014 Sofia
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3. Brief overview of the main research results
BSRP midterm meeting 22 May 2014 Sofia
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City (above 10 000 pe) PE P‐removal Stabilization Dewatering
Sofia 1 291 054 ch/bio digestor belt filterpressBurgas 170 792 ch/bio anaerobic open centrifugesMeden Rudnik 43 757 ch ext aeration centrifugesKustendil 48 052 ch/bio aerobic stabilisation drying beds/centrSamokov 26 591 n.n. ext aeration chamber filter pressGorna Orjahovitsa 43 834 ch/bio digestor belt filter pressDimitrovgrad 38 677 ch digestor belt filter pressRuse 149 294 ch/bio digestor belt filter pressSevlievo 23 390 ch aerobic stabilisation belt filter pressSliven 92 530 ch/bio digestor mechanicalStara Zagora 172 492 ch/bio deigestor mechanicalTrojan 22 225 ch/bio ext aeration belt filter pressHaskovo 89 812 n.n. ext aeration belt filter press
BSRP midterm meeting 22 May 2014 Sofia
WP1 Selected WWTPs
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WP2 Sewater treatment
BSRP midterm meeting 22 May 2014 Sofia
Goal: Process combination of nanofiltration and reverse osmosis for treatment of solar seawater
evaporation concentrate
Task 2.1: Membrane screening (FHNW)
Task 2.2: Filtration experiments (FHNW)
6 M 12 M 18 M
WP 2 M 1‐8
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WP2 Sewater treatment
BSRP midterm meeting 22 May 2014 Sofia
Goal: Process combination of nanofiltration and reverse osmosis for treatment of solar seawater
evaporation concentrate
Task 2.1: Membrane screening (FHNW)
Task 2.2: Filtration experiments (FHNW)
6 M 12 M 18 M
WP 2 M 1‐8
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WP 3 Sludge disintegration
BSRP midterm meeting 22 May 2014 Sofia
Goal: Provoke an increased release of phosphorus from the sludge into the liquid phase
Task 3.1: Phosphate dissolution from sludge by
applying solution of high salinity (FHNW)
Task 3.2: Lab scale Studies on electrochemical
dissolution of orthophosphates from ferric phosphate (BU)
Task 3.3: Lab scale Studies on acidic dissolution of
phosphate from sludge (FHNW )
6 M 12 M 18 M
Task 3.1 M 6 ‐12
Tasks 3.2 and 3.3 M 4 ‐12
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WP 3 Sludge disintegration
BSRP midterm meeting 22 May 2014 Sofia
Goal: Provoke an increased release of phosphorus from the sludge into the liquid phase
Task 3.1: Phosphate dissolution from sludge by
applying solution of high salinity (FHNW)
Task 3.2: Lab scale Studies on electrochemical
dissolution of orthophosphates from ferric phosphate (BU)
Task 3.3: Lab scale Studies on acidic dissolution of
phosphate from sludge (FHNW )
6 M 12 M 18 M
Task 3.1 M 6 ‐12
Tasks 3.2 and 3.3 M 4 ‐12
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WP 3 Sludge disintegration
BSRP midterm meeting 22 May 2014 Sofia
Goal: Provoke an increased release of phosphorus from the sludge into the liquid phase
Task 3.1: Phosphate dissolution from sludge by
applying solution of high salinity (FHNW)
Task 3.2: Lab scale Studies on electrochemical
dissolution of orthophosphates from ferric phosphate (BU)
Task 3.3: Lab scale Studies on acidic dissolution of
phosphate from sludge (FHNW )
6 M 12 M 18 M
Task 3.1 M 6 ‐12
Tasks 3.2 and 3.3 M 4 ‐12
o-PO4 concentration in the MFC (blue) and control sample (red) vs. Time
0102030405060708090
0 24 48 72 96 120 144 168 192
Time, Hours
o-P
O4
conc
entr
atio
n, m
g/l
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WP 3 Sludge disintegration
BSRP midterm meeting 22 May 2014 Sofia
Goal: Provoke an increased release of phosphorus from the sludge into the liquid phase
Task 3.1: Phosphate dissolution from sludge by
applying solution of high salinity (FHNW)
Task 3.2: Lab scale Studies on electrochemical
dissolution of orthophosphates from ferric phosphate (BU)
Task 3.3: Lab scale Studies on acidic dissolution of
phosphate from sludge (FHNW )
6 M 12 M 18 M
Task 3.1 M 6 ‐12
Tasks 3.2 and 3.3 M 4 ‐12
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WP4 Metal separation
BSRP midterm meeting 22 May 2014 Sofia
Goal: Low phosphorus loss and an effective purification
Task: Lab scale studies on metal separation with nanofiltration optimize operational parameters (FHNW)
6 M 12 M 18 M
WP 4 M 8‐16
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WP4 Metal separation
BSRP midterm meeting 22 May 2014 Sofia
Goal: Low phosphorus loss and an effective purification
Task: Lab scale studies on metal separation with nanofiltration optimize operational parameters (FHNW)
6 M 12 M 18 M
WP 4 M 8‐16
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WP‐5 MAP crystallization, lab and bench scale
Meeting 22 April 2014
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype
Task 5.5: On site bench scale studies
BSRP midterm meeting 22 May 2014 Sofia
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WP‐5 MAP crystallization, lab and bench scale
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype
Task 5.5: On site bench scale studies
BSRP midterm meeting 22 May 2014 Sofia
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WP‐5 MAP crystallization, lab and bench scale
Meeting 22 April 2014
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype
Task 5.5: On site bench scale studies
71,4
95,792,8 95,7
020406080
100120
Contr
ol pro
be
Chito
san (0
,5 mg
/l)
Chito
san (1
mg/l
)
Chito
san (2
mg/l
)
Pecti
n (0,5
mg/l
)
Pecti
n (1 m
g/l)
Pecti
n (2 m
g/l)
Gelat
ine (0
,5 mg
/l)
Gelat
ine (1
mg/
l)
Gelat
ine (2
mg/
l)Ag
ar (0,
5 mg/l
)
Agar
(1 mg
/l)
Agar
(2 mg
/l)
Zeolit
e (0,5
mg/l
)
Zeoli
te (1
mg/l)
Zeoli
te (2
mg/l)
Phos
phate pr
ecipitation rate
, % 0,96 0,990,825
0,972 0,99
00,2
0,40,60,8
11,2
Chito
san (0
,5 mg
/l)
Chito
san (1
mg/l
)
Chito
san (2
mg/l
)
Pecti
n (0,5
mg/l
)
Pecti
n (1 m
g/l)
Pecti
n (2 m
g/l)
Gelat
ine (0
,5 m
g/l)
Gelat
ine (1
mg/l
)
Gelat
ine (2
mg/l
)Ag
ar (0,
5 mg/
l)
Agar
(1 m
g/l)
Agar
(2 m
g/l)
Zeoli
te (0,
5 mg/l
)
Zeoli
te (1
mg/l)
Zeoli
te (2
mg/l)
Sedimen
tation
rate, m
/s
BSRP midterm meeting 22 May 2014 Sofia
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WP‐5 MAP crystallization, lab and bench scale
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype
Task 5.5: On site bench scale studies 1200 mV
6
7
8
9
10
11
0 24 48 72 96 120
Time, hours
pH
BSRP midterm meeting 22 May 2014 Sofia
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WP‐5 MAP crystallization, lab and bench scale
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype
Task 5.5: On site bench scale studies
7,5
98,9
7
7,5
8
8,5
9
‐50 50 150 250
time, minpH
100 h‐1 200 h‐1 300 h‐1
BSRP midterm meeting 22 May 2014 Sofia
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WP‐5 MAP crystallization, lab and bench scale
Meeting 22 April 2014
Goal: To develop innovative and environment friendly methods of struvite precipitation
Task 5.1: Lab scale studies on the application of low cost natural seawater concentrate
Task 5.2:Studies of agglomeration of struvite crystals
Task 5.3.1: Studies on non-reagent pH elevation by electrochemical processes (MFC)
Task 5.3.2: Studies on non-reagent pH elevation by air-stripping
Task 5.4 :Design of demo prototype IN PROGRESS…………..
Task 5.5: On site bench scale studies IN PROGRESS…………..
BSRP midterm meeting 22 May 2014 Sofia
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MAP CHARACTERIZATION
Thermo-gravimetric analysis
X-ray diffractometry
Microscopic observation
BSRP midterm meeting 22 May 2014 Sofia
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Microscopic pictures of the struvite from the in the experimental work
BSRP midterm meeting 22 May 2014 Sofia
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First year results (1)
• Two innovative processes for phosphorus extraction: 1) Sludge disintegration by high osmotic salt solution and 2) Bio‐electrochemical, non‐reagent dissolution of ferric phosphate by application of Microbial Fuel Cells;
• An innovative configuration of nanofiltration for the purification of phosphorus and removal of heavy metals;
• Several innovative aspects regarding the crystallisation of struvite as fertiliser product;
• Precipitation initiation by air stripping, agglomeration by addition of natural coagulants and flocculants and non‐reagent pH elevation using microbial fuel cells.
BSRP midterm meeting 22 May 2014 Sofia
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First year results (2)
• Identification of synergies and improvement of process efficiency. Different experimental studies about the application of seawater or seawater concentrate as magnesium or salt source.
• The identification of types of waste acids suitable for an application for the acidic extraction of phosphorus from the
• Link to the real conditions given in the WWTPs. A comprehensive study on an assessment of mass flows, loads and concentrations in Bulgarian WWTPs
BSRP midterm meeting 22 May 2014 Sofia
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• Master thesis (Kirsten Remmen): finished 09/2013
• Master thesis (Georgi Kirov): finished 02/2014
• Master thesis (Ralitsa Lambeva): to be finished in 07/2015
• Master thesis (Therese Schütte): finished 05/2014
• PhD work of Gergana Peeva: to be finished in May 2015
• Annual Report: finished 03/2014
Activities in implementation of WP7
• Journal publication about sludge disintegration with salt solutions (WP3.1) FHNW: status: draft available
• Journal publication about nanofiltration (WP4): FHNW: status: draft available
Meeting 22 April 2014
Research Output
BSRP midterm meeting 22 May 2014 Sofia
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Acknowledgement
BSRP midterm meeting 22 May 2014 Sofia
Highly acknowledged is the funding of the “INNOVA P‐recovery” project (No. IZEBZO_143004/1) by the Bulgarian‐Swiss Research Programme.
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Thank you for your attention
BSRP midterm meeting 22 May 2014 Sofia