tecflusac - EXPO AGUA Perú

TECFLUSAC
TECNOLOGIAS EN
TRATAMIENTO DE AGUAS
RESIDUALES
Ma. Augusto Arenas Taipe
CIP 100692
Av Calca 269 teléfono 348 4371
Temas de interes en el diseño de las PTAR
Cumplir con Los
valores de vertimientos
(DBO, DQO HUEVOS
DE HELMINTO)
Cumplir con la rata
de transferencia
de oxigeno
Estar acorde con los
targets financieros
Alta performance
para obtener el
menor costo de
operacion
Combinacion de
productos de tal
manera de encontrar
el mejor costo
beneficio
Como selecciono/diseño la
planta?
•
•
•
•
Privilegio de costo de operación
Privilegio de costo inicial
Privilegio de robustez del sistema
Condiciones especificas de reducción de algun
parametro especial (nitrogeno, fosforo)
• Grado y complejidad de automatización
• Equipos automaticos por diseño?
Biological WWTP, flow chart
Inlet
Pump
Sump
Primary
Sedimentation
Sand and
grease
removal
Equalisatio
n
Chemical
treatment
Screening
Biological processes
Secondary
Sedimentation
Tertiary
Treatmen
t
to the
recipients
Primary
Sludge
Return Sludge
Excess
Sludge
Anaerobic
digestion
Dewatering
Post-thickening
Aerobic
digestion
Pre-thickening
Sludge
storage
Aeration
2%
Other E&M
40%
Civil Work
55%
Only 5% of the WWTP
construction cost is
related to the Aeration
System
Compressor
3%
Aeration
80%
BUT up to 80% of the Energy
Consumption in the plant is
related to the Aeration
system
Misc.
systems
1%
Pumping
10%
Sludge
handling
9%
Surface
aerators
Vertical Axis
Surface Turbines
Turbines
Fixed Low Speed
Draft Turbines
Floating High
Speed
Floating Low Speed
Surface
aerators
Horizontal Axis
Brushes (Mammouth)
Motor
Brush
Rotor
Aeration Efficiency of
Different Aeration Methods
6
kg O2/kWh
5
4
3
2
1
0
Surface
Turbine
Pump
Eject.
Brushes
Standard Aeration Efficiency
OKI
aerat.
Coarse
Bubble
Fine
Bubble
Actual Aeration Efficiency
Aeration Efficiency of
Different Aeration Methods
6
kg O2/kWh
5
4
3
2
1
0
Surface
Turbine
Pump
Eject.
Brushes
Standard Aeration Efficiency
OKI
aerat.
Coarse
Bubble
Fine
Bubble
Actual Aeration Efficiency
PRODUCTOS
NWP
• DynaSand, filtración de arena
• Lamella, placas de sedimentación
• DynaDisc, filtro de tambor
Zickert
• Rascadores de fangos
• Floc-Bee sedimentadores
• Equipos para decantación
1
3
MEVA
New RotoScreen
RS 10
RS 14
RS 19
RS 23
RS 29
RS 35
RS 39
RS 47
Instalacion Monoscreen
Barredor de fondo Z2000
Plantas de tratamiento de
efluente
Plantas de agua potable
Industrias
Mas de 3000 instalaciones.
El nuevo DynaDisc
CD-series
For installation in
concrete channel
TD-series
For free standing
installation
Integrated backwash system
Rotor with discs
Installation of a cassette
Installation of a cassette
Front center bearing
Rear bearing shaft
Backwash system
Backwash header
Blinding of free disc spaces
Function
Function
Applications
Free-Standing filter unit with 4.4 m disc diameter
Free-Standing filter unit with 4.4 m disc diameter
Free-Standing filter unit with 4.4 m disc diameter
3 pcs DynaDisc filter units with 4.4 m disc diameter - Installed
DynaDisc filters installed at Syvab Himmerfjärden WWTP, Sweden. Capacity 6500 m3/h.
DynaDisc filter unit, type TI-15, with 1 disc
Pilot unit, with 2.6 m2 filterarea, ready for shipment
DynaDisc – Installed
DynaDisc installed at Stora Enso Fors Mill, Sweden
DynaDisc - Installed
DynaDisc as a free-standing filter in a steel tank,
installed at Stora Enso, Fors Mill, Sweden
DynaDisc built- in filter type CI-242007-110 with 2.4 m disc diameter
4 pcs DynaDisc installed at Thames Water, Beddington WWTP, UK. Capacity 4 x 853 m3/h
DynaDisc built-in filter type CI-221215-110 with 2.2 m disc diameter
DynaDisc built-in filter for pre-filtration of raw water before DynaSand filter
plant for chemical treatment of potable water. Installed at Coraasan WTP, La
Noriega, Republica Dominicana. Capacity: 3950 m3/h
Yxnaberga, Kalmar, TD2404 installed in 2008
Fleet, England 2 pcs CD2420 installed in 2008
Fleet, England 2 pcs CD2420 installed in 2008
Huishan, Kina 2 pcs CD2420 installed in 2008
Fleet, detail of filter media
DynaDisc disc filter
for
Municipal water and wastewater treatment
For filtration of wastewater after biological
treatment for removing of suspended solids and
phosphorus.
For filtration of storm water after chemical
precipitation and flocculation with polymer.
As pre-filter in combination with DynaSand filter
for production of potable water.
Fish farming
Filtration and recirculation of water in farming
plants.
DynaDisc disc filter
for
Iron & Steel Industry
For raw water screening in the production of
mechanically purified process water.
For recirculation of cooling water
(ex. in hardening plants)
Chemical Industry, Power plants etc
For raw water screening in the production of
mechanically purified process water.
For recirculation of cooling water
DynaDisc disc filter
for
Pulp & Paper Mills
For cleaning and recirculation of white water
from paper and/or board machines for spraying
applications.
For cleaning and recirculation of white water
from paper and/or board machines for pump
sealings.
For improving the water quality after existing
fibre recovery filters (save-all filters) for spraying
applications.
For improving the water quality after existing fibre
recovery filters (save-all filters) for pump sealings.
System deliveries
DynaDisc combined with DynaSand
for high-efficiency filtration
of process water
System delivery for raw water treatment
The system delivers high-grade processed water,
with the least possible amount of reject.
Lamella Separator
DynaDisc
DynaSan
d
The raw water is pre-filtrated in DynaDisc Disc filter before
being chemically treated in DynaSand filter. The sludge from
the DynaSand filter is separated and concentrated in a
Johnson Lamella Separator.
TECFLUSAC
Tecnología de Fluidos SAC
MUCHAS GRACIAS
SISTEMAS DE CONTROL
DE OLORES
SISTEMAS DE CONTROL DE OLORES
Conceptos Básicos
• Los sistema de control de olores (OCS) se usan para
resguardar la salud de las personas que trabajan cerca
a las fuentes generadoras (estos gases son en su
mayoría tóxicos), evitar las quejas de personas que
están cerca a las plantas y prevenir la fuga de gases
tóxicos.
• El sulfuro de Hidrógeno
relevancia.
(H2S) es el de mayor
SISTEMAS DE CONTROL DE OLORES
Conceptos Básicos
• Mercaptanos, aminas, ácidos grasos o otros
compuestos orgánicos volátiles pueden estar presentes
(VOC) también en los gases.
• Normalmente el foco se pone en la remoción del H2S
debido a que el umbral de olor es de 0.1 ppm (encima
de 100 ppm ya no se percibe!!!)
SISTEMAS DE CONTROL DE OLORES
Conceptos Básicos
• Solo se puede tener una cantidad de H2S
correlacionado con la cantidad de sulfatos del agua, sin
embargo la anaerobiosis de lodos orgánicos genera una
disminución de PH que activa bacterias sulfato
reductoras.
SISTEMAS DE CONTROL DE OLORES
Fuentes de olores en plantas de tratamiento
SISTEMAS DE CONTROL DE OLORES
HOJA TECNICA DE H2S
SISTEMAS DE CONTROL DE OLORES
Tecnologías Disponibles
•
•
•
•
•
•
•
Thermal Oxidation
Gas phase systems
Biofiltration
Scrubber
Standard Activated carbon
Impregnated activated carbon
Catalytic activated carbon
BIOFILTRO
• Biological odor control employs microorganisms to
remove and oxidize compounds from contaminated air.
Air streams pass through a biologically active filter
where bacteria digest contaminants
• Producing carbon dioxide and water vapor. This process
is complex and involves the interplay of mass transport
(diffusion) and biological degradation.
• The microorganisms live in a thin layer of moisture, the
biofilm, built around particles of the filter. Contaminated
gas is diffused in the biofilter and adsorbed onto the
biofilm, where oxidation occurs. The contaminant is not
permanently transferred to the filter.
BIOFILTRO
• Biofilter systems consist of a containment vessel with an air
distribution system. A three to four foot deep bed of
biomaterial, either organic (peat, soil, compost or heather) or
synthetic (granular activated carbon or plastic), is installed.
• For consistent, reliable performance, close attention to
environmental parameters must be paid. Since continuous
airflow tends to dry media, biofiltration systems often humidify
air before it reaches the filter to maintain moisture levels
essential for microorganism health.
• Optimal operating temperatures of 30 to 40 degrees Celsius
must be maintained. Oxygen levels are also important and
may need to be added, since most of the degradations are
aerobic.
BIOFILTRO
• Microorganisms use the oxygen present in dissolved form in
the biofilm. Airflow pH levels must also be considered and
possibly controlled. Most microorganisms perform best where
pH levels are close to seven.
• Nutrients are sometimes added to keep microbes healthy.
Finally, synthetic media must be inoculated with microbes
prior to operation. (Organic media, by its nature, usually does
not require a separate inoculation step.)
CARBON ACTIVADO CON CATALIZADOR
• Catalytic activated carbon was developed to remedy the
drawbacks of conventional adsorption media and
provide an attractive alternative to chemical wet
scrubbing and biotechnology.
• Structurally similar to traditional activated, carbon,
catalytic carbon is a bituminous coal-based product
specially manufactured to exhibit a much higher level of
catalytic activity than is intrinsic in conventional
activated carbon
CARBON ACTIVADO CON CATALIZADOR
• Catalytic carbon's effectiveness for odor control is clear.
After adsorbing contaminants, catalytic carbon promotes
an oxidation reaction that converts hydrogen sulfide
(H2S) to sulfuric acid (H2SO4) or sulfate salt if it before
impregnated with alcaly. This differs from virgin/reactivated
carbons, which physically adsorb compounds, and from
impregnated carbons, which promote a chemical reaction,
converting H,S to elemental sulfur (S).
• This catalytic activated carbon provides a high capacity for
removing volatile and odorous organic compounds. It also
exhibits an increased capacity for H2S, because its
catalytic sites promote a reaction between the hydrogen
sulfide and oxygen from the air stream.
CARBON ACTIVADO CON CATALIZADOR
• This leads to the formation of sulfate (SO4-2) with a small
amount of sulfite (SO3-2) and S.
• More than 90 percent of H2S reacts to form H2S04. Less
than five percent of the reaction product is S. This is key,
since H2SO4, unlike S, is very loosely adsorbed and water
soluable. This means that catalytic carbon, when initially
exhausted for H2S removal, can be water washed to
restore its H2S removal capacity.
• The rate of these reactions on the catalytic carbon
enhance the H2S removal capacity from a normal 0.010.02 gms H2S /cubic centimeters (cc) carbon for virgin
carbon, to 0.09 gm HS /cc carbon or greater.
CARBON ACTIVADO CON CATALIZADOR
The new technology's benefits and limitations :
Benefits
• Smallest footprint of any treatment technology.
• Lower capital and installation costs;
• Treats H2S levels up to 50 ppm with a removal efficiency of 99
percent;
• Treats flows up to 30,000 cfm with a single system;
• No downtime for carbon changeout;
• Lower operating costs
• Simple maintenance.
CARBON ACTIVADO CON CATALIZADOR
The new technology's benefits and limitations :
Limitations
However, the new system uses 90 per-cent less media,
thus it has less capacity for organic removal than
traditional activated carbon systems. This is not a
consideration for most municipalities, because H2S
levels are typically much higher than organics. For
applications with both significant H2S and organics, the
technology may be paired with a second stage
treatment. For rare applications targeting organic
compounds alone, it would not be a good fit.
RESUMEN DE TECNOLOGIAS
PRODUCTO A
USARSE
REMOCION DE H2S
1-10 ppm
1-50 ppm
¨+50 ppm
REMOCION OPERACIÓN ESPACIO
VOC´S
MANTTO REQUERIDO
GAC Tradcional Catalitico
3
2
1
2
2
2
Nuevo GAC Catalitico
3
3
2
1
3
3
Standard GAC
2
1
1
2
2
2
Alumina
3
1
1
2
2
2
Biofiltro abierto
2
2
1
2
2
1
Biofiltro Cerrado
3
3
1
2
1
1
Scrubber
3
3
2
2
1
1
OCS NORDIC WATER SA
Criterios de diseño
• In accordance with the room volume or space to treat
and the local regulation about number of renovation of
air/minute, we calculate a Capacity (m3/h). (en
nuestro caso van entre 6-12 renovaciones por hora)
• The face velocity in the carbon bed must be between
0,2 to 0,41 m/sec.
• The carbon bed depht must be 0,9 mt.
• Contact time between 2 to 6 sec.
OCS NORDIC WATER SA
Criterios de diseño
• In accordance with the room volume or space to treat
and the local regulation about number of renovation of
air/minute, we calculate a Capacity (m3/h). (en
nuestro caso van entre 6-12 renovaciones por hora)
• The face velocity in the carbon bed must be between
0,2 to 0,41 m/sec.
• The carbon bed depht must be 0,9 mt.
• Contact time between 2 to 6 sec.
OCS NORDIC WATER SA
Nordicwater STI:
Pelletized impregnated activated carbon
The NW-STI activated carbon has been specifically designed
for the control of Hydrogen Sulfide(H2S), Methyl Mercaptans,
found in sewage treatment plants and transfer stations,
petroleum refineries, pulp and paper mills, steal mills, mining
industry, tar plants, Industrial plants, chemical storage, clean
rooms, protection of computers and personnel, motor control
centers, instruments, and other equipment found in corrosive
environments. The NW-STI carbon is based on select grades
of coal, which have been activated by high temperature steam,
under rigidly controlled conditions and chemically
impregnated and pelletized.
OCS NORDIC WATER SA
FEATURES AND BENEFITS
• H2S performace : Up to 0.15 g/cc removal capacity; H2S Adsorption
Capacity (18-24% w/w basis)
• Cost Effective : Due to the 8-10 time higher H2S capacity over a
non-treated carbon.
• High VOC Capacity : Due to the high surface area found in the base
carbon, Typically 1100 m2/g
• Not affected by High Moisture : Performs best at 70-80% RH
• Appearance: Pelletized and/or Granular
• Low Pressure Drop : 1.05" w.g./ft. Carbon @50 fpm
• Empaque : #50-55.lbs Kraft Bags and 1000-1250 .lbs Bulk Bags
• Disposal: Disposal should be made according to local/municipal,
Provincial/state and/or Federal regulations.
CAUTION: WET ACTIVATED CARBON DEPLETES OXYGEN FROM
AIR.
SISTEMA DE CONTROL DE OLORES CON
CARBON CATALITICO
TECFLUSAC
MUCHAS GRACIAS
Ing. Augusto Arenas T.