Post on 15-Feb-2016
description
Contextualization of available technologies in wastewater
treatment: from BIODISC to MBR
Eng. M. GaldiEng. K. Al ZeerEng. R. Ruggiero
CANNON GroupItalian groupInternational, present in 40 countriesIndustrial engineering900 employees200 m€ turnover
Fields of ActivityPlastics Processing (59%)Heat & Power (24%)Water Treatment (13%)Automation Machine (4%)
ARTES Ingegneria S.p.A. was founded in 1975 as the
Company within the BONO Group in charge of the waste
water treatment market
Peschiera Borromeo Milano
Oliveto Citra Salerno
Salerno Headquarter
Total Area : 30.000 m2
Covered Area : 8.900 m2
Workshop : 7.800 m2
Office : 1.000 m2
Technical Dept. 25
Sales & Marketing 15
After Sales Services 5
Purchasing & Warehouse 3
Administration Dept. 3
Production Supervisors 3
Quality Dept. 3
Workshop 33 +15
Total Employees 105
Quality Control Personnel:• Quality Assurance manager• Quality control inspectors• Quality control assistants
• ISO 9001:2008 certified• ISO 14001 & OHSAS 18001 in progress• ASME Authorisations – “U”, “S”, “R”
code stamps
OUR CERTIFICATES
OUR CUSTOMERS (OIL&GAS)
OUR CUSTOMERS (POWER GENERATION)
OTHER CUSTOMERS
2002 2003 2004 2005 2006 2007 2008 2009 2010 20110%
20%
40%
60%
80%
100%
50%
60%65% 66% 68% 70% 70%
75%80%
92%
% T
urno
ver
Export
South Est Asia &
Oceania
Europe, Russia and CIS Countries
Middle East & Africa
America
20%
6%
48%
26%
• Food and Beverages
SECTORS
• Textile & Laundry
SECTORS
• Paper
SECTORS
• Pharmaceutical and Chimical
SECTORS
• Building & Construction
SECTORS
• Tourism & Recreation
• Potabilization
TECHNOLOGY
BRC +DCl
BRC + MF + DUV
AS + MF + DUV
MBR + DUV
Where:BRC = BIOLOGIC ROTATING CONTACTORDCl = DISINFECTION WITH CHLORINEMF = MICROFILTRATION DUV = DISINFECTION WITH UV LAMPAS = ACTIVATED SLUDGEMBR = MEMBRANE BIOLOGICAL REACTOR
BRC = BIOLOGIC ROTATING CONTACTOR
water
tank
BRCsubmerged for about
40%
rotation
airtight lid
shaft
gear motor
pannel
BRC
BRC
Advantages:• Easy to absorb overload without failure in the treatment process• No bulking problems, no filament bacteria• Easy to expand and upgrade, it is a modular plant• Ability to process a very low organic loads; Unlike the activated sludge plants• Less space occupied for the oxidation step and the step of final sedimentation• Reduced need for energy consumption (about 40% less than the activated sludge
plant)• Automation and ease of use• Very low levels of noise• Limited environmental impact. There are no problems with troublesome odors and
/ or aerosols. Since each unit is fitted with an airtight lid• No need to recycle sludge, self-regulating plant
Handicaps:• Possible mechanical problems• Limited efficiency: Compared with AS or MBR
BRC
MBR = MEMBRANE BIOLOGICAL REACTOR
A membrane bio reactor is...• a combination of biological waste water
treatment and membrane filtration• a membrane filtration which separates
biomass from water• a membrane filtration which is based on
ultra or micro filtration
conventional Activated Sludge process
anoxic step
Aerobic stepFrom preliminary treatments
Sand filter
MBR process
Anoxic
anoxic step Aerobic step
Q
5Q
4Q
Q
membrane
Qm
4 Qm
Qm
5 Qm
blower
blower Recirculation pump
Suction pump
PROCESS DIAGRAM MBR
Why to use an MBR1. Recycling Possibility
Safe rejection of biomass, solids and bacteria Pre-treatment for following treatment steps
(reverse osmosis, nano filtration, UV and ozone)
2. Plant size Place saving installation due higher sludge concentration Increasing of capacity in an existing plant
3. Effluent Quality Enhanced quality of treated water Constant quality of treated water Conformance of enhanced standards of hygiene
(EC guidelines for bathing water) Higher efficiency due increasing concentration of biomass in
the activated sludge tank
What is …ContextualizationMeans:
• plants with easy maintenance and management, reliable, and simple installation
to be served for small, medium and large rural settlements;
• plants that are technologically "state of the art" of higher cost, but performance
significantly better in terms of quality of produced water, to be served in
settlements where the environmental impact is important, where the presence of
skilled personnel is possible, where the quality of treated water is particularly
important (settlements in bathing areas, Hotel, resorts, etc.);
The parameters that we will consider are :
• Efficiency
• Installation cost
• System's complexity (difficulty in finding qualified
personnel)
• Enviromental impact
0,0
0,2
0,4
0,6
0,8
1,0
effic
ienc
y
installation cost
0,0
0,2
0,4
0,6
0,8
1,0
syst
em's
com
plex
ity
installation cost
environmental impact
inst
alla
tion
cost
0,00,2 0,4 0,6 0,8 1,0
syst
em's
com
plex
ity
efficiency
By "contextualize" we define four areas with different needs (about water quality and environmental impact) and different resources (about financial resources and specialized personnel):1. rural areas (low economic resources, low availability of specialized
personnel, where the environmental impact and the water quality are not very important)
2. inland areas (where the environmental impact is not very important, there isn’t specialized personnel, the water quality is important enough and there are sufficient economic resources)
3. coastal areas (where the environmental impact and water quality are important enough and you can find both the economic resources that qualified personnel)
4. touristic areas (where the environmental impact and water quality are very important and to find financial resources and qualified personnel is not a problem)
intersecting the defined areas and the needs/resources above described on we obtain a value “V”
1 = LOW IMPORTANT/ NO AVAILABLE4 = VERY IMPORTANT/ AVAILABLE
rural areas
inland areas
coastal areas
touristic areas
environmental impact 1 1 3 4
specialized personnel 1 1 3 4
water quality 1 2 4 4
economic resources 1 2 3 4
With “V” = 4
BRC + DCl
With 4 < “V” < 6
BRC + F + DUV
With 6 < “V” < 12
AS + F + DUV
With 12 < “V” < 16
MBR + DUV
Eng. M. GaldiEng. K. Al ZeerEng. R. Ruggiero
THANK YOU FOR YOUR ATTENTION!