CA2559300A1 - Sewage treatment technology - Google Patents
Sewage treatment technology Download PDFInfo
- Publication number
- CA2559300A1 CA2559300A1 CA002559300A CA2559300A CA2559300A1 CA 2559300 A1 CA2559300 A1 CA 2559300A1 CA 002559300 A CA002559300 A CA 002559300A CA 2559300 A CA2559300 A CA 2559300A CA 2559300 A1 CA2559300 A1 CA 2559300A1
- Authority
- CA
- Canada
- Prior art keywords
- air
- daf
- sewage treatment
- water
- treatment technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
CA 02559300 2006-09-08 PATENT ~ ~ IN
~ ~ ~~~~~~ TPT ~lENT TECHNO G
~e-GLOE?AL W~RMINC, PREVE NT~ON TE~HNOIL-OGIES
In Association with the Public Protection Action Committee Raw Sewage Tr=eatment Technology Dissolved Air Flotation System (DAF) Cost-Effective, Environmentally Friendly Waste Sludge Solution for the 21 St Century W
.."- ' :.'2. 5. 41 ~f~=. tt- j kfc ~ .~
A ~F ..~
PARLIAMEN'T BUILDINGS
OTT'AWA
SEWAGE TREATMENT DISSOLVED AIR FLOTATION (DAF) SYSTEM
IS THE MOST ADVANCED AND EFFICIENT COMPACT SYSTEM FOR
THE REMOVAL OF TOTAL SUSPENDED SOLIDS (TSS), FECES, FATS, OILS, AND GREASES (FOG) FROM HOUSEHOLD, BUSINESSES OR ANY OTHER SOURCE OF CONTAMINATION IN
SEWAGE WASTEWATER. THE DAF SYSTEM IS 100% EFFECTIVE
TO ENSURE THE HEALTH AND WELL-BEING OF WORLD
COMMUNITIES IN NEED OF SEWAGE TREATMENT.
i PATENT PENDING MADE IN CANADA SEWAGE TREATMENT Chs a3LOGV
Raw Sewage Dissolved Air Flotation System Important Design Parameters of the DAF System ;::>:> :: ....: ....: . . ::>:::: ..: ....
.. .....
......... ..
..................... .. ....... ..........................
....................................................
Coagulation is the proaess of destabilizirq colloidal ~ ~ien~r~tr~t~ian ~i~ r~aivyr:~ater ...........
particles so that particle growlh can occur beeause of ......... ....._... ....... .
...- . . _... .,... .. .. . ..._ - - .......................__..........---.............. -.....
collisions. Coa9ulant is a chemical added to :=:::: _ ::i:::: : : ::::::::::
_=:::
particle ...... ... ... .. ... .
.. ........... ... ... ...... ... ... ... ... .. ..... ... .. . .
....... ................ . _ ....... ..._ destabilize the colloidal particles and help floc 4formation- . ....... ::: : -..: :. ..
.....:....................................
. ..
...........................................
_.................................................. .....
Floaculatian is the cess that brings ~ about the collisions K~
between the destabiliaed suspended and colloidal particies to inrm larger particles that can be removed ~ ~ec-rde E~o readily.
Coagulation and flocculation are the mechanisms by which the suspended particles and cotloidal materiais is removed from water in the floiation process. Optimization of coagula*ion and flocculation ia necessary for optimum performance of flotation system. The type and amount of chemical dosing, intensity of mncing, detention time in the rapid mixing zone and flocculation zone, and floa size are the key parameters that play important role in performanoe of the flotation system.
......._ -------------- ......... .......... ........... ..._ -- -....................
_.._.... .- -....
' Solid A .
Y_ Y
Air to solid rat9o is th~ principal parameter in design of a O:~~i suir~ ~itd ~i~~ am: r~r . .. ... . .. .... . ... .
.............................................
...............................................................
dissolved air flotatior system. It is a theoretical rneasure =_ ~r : - - : : . -::=::_ '~#it:~~n~t rf :~:a~r;
... . .. .
of quantity of air available . . .' per quantity of solid to be :
rem4ved. Typical values range between 0.005 - 0.06 ----------------- 7-~~~~~~._'i~:~;~ry:~lEl~l?~.....
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
................... ...........................
...... .................. ............
mUrrag. frac#acrr : s ... . ~a~bny iss~ra_ty ~ . . :: ::::
:.....:
................:....................:...................::..................
...............:.............:................... ..........:_..: .
..........
.. ... ............... ......__.._.................
...
..
.. ......
................
. ... . ............ . .$...... !. .... P.'e..sur~ ::.............. .....
.........:::::::::: :
For idissoMng saturatar vessel, the relation between ...............................................................................
...............................................................................
....
air ........... ..................... ........
_............................................ ..........._....................
........................... .................
A!S ratio, solubility of air, operating pres;iure, solid A~g" M
... .
...........
d~~
conoentration, flow rate and recycle rate is given by the pr~ssuct~ed lrsec~le ~frn~nr ra ...... e= m'............
............................
:................::......._.................._..._.........:... :.............
......... ...........
following equation: I g i: flo ........ w ~~pt ......... ps~~
. e The most advanced sewage treatment system for the 21 st CenturyF
PATENT PENDING MADE IN CANADA SEWAGE T E TM T CL. OL GY
Raw Sewage Dissolved Air Flotation System ................................
:: :::.:.::.::.... :::.::::::::::::..::....:.::.::.::::.:::..:._ ::,:::.::::..:. ::=:::::.::... :::::::.
::::: :. ................... ...................._...........................
...
............
...............................................................
................................. .:.::.... .::
::::.:.....:..........:.:...........
::: :.:::::.::::;;
.
;;:..... :::....~,;: = -The recycle ratio is the fraction of the final efiluent The hydraulic loading rate is a rneasurement of the volume produced which is rreturned and supersaturated with air of influent applied per unit effective surPace area per unit under pressure before entering the flotation tank where time. This results in process design figures expressed as the sudden pressure reduction caused release of air in equivalent up-flvw velocities with units of mlhr. HLR is form of micro bubbles. The recycle ratio ranges from 8% depended on various factors, however it ranges from 4 to to 15096 based on the quality of raw water ta be treated, 12 rnlhr. The maximum HLR must be less than the Air dissolution rate is proportional to absolute pressure as minimum rise velocity of the solid"ir particle to ensure per Henry's Law of partial pressure of gases adjacent to thA all of the particles will float to the water surface before liquids_ Hence, the higher the operating pressure of DAF the water reaches the discharge end of the tank Hydraulic pump or airMrater saturation vessel, higher the air ioading rate is checked based on influent flow rate and solubility and thus lower the required percentage recycle. also total flow rate (influent + recycie fiow).
Standard N-R DAF system eomes with DAF pump that operate at 120 psi and achieve above 92% air solubility.
The DAF pumps are capable of mixang 36 to 2ai SCFH air.
The air eductor laop draws in ambierrt air and supplies it to ;., .;:;:;; :~,>;;: ~>:=; : ; ~ir;::;;:;:
DAF PumP Pr G . Henee comessed air suPP Y is not reuired.
I
~;i't~r ...............................................................................
.....................................
...................................................:.
...............................................................................
.......................................
....................................................
...............................................................................
........................... ......
...................................................
............ ........
:::~It'::= :::=:::i;;;;~::::::_:>:::::: ~::: ::_'=._:::::;;::::::::::t:
=:::::<::::::'::s:::::?:;::::
:::=:::.-.:::::=:::= ::::::: ::=::=::::=:::::.::
_.:::::::::=::::::.::.:::::::::::::::=:::.:::::.:::::::=:::::=:::.-:::.:.::::.::.
....... .... .................... .................... .....................
................
If Napier-Reid's saturator vessel skid is selected instead of DAF pump to produce supersaturated water, it operates at 50 to 60 i ressure and air dissolving Ps gP ::;Tia~:
:>>::~:::::.::~::>::~.';::::;;:;:<':?:':=:.::'~::~;~:~?~:~i:;i~;~iiur=:;;;
;:~ ~:~:.~:::.~....................................................
:::::::::::::::.-::::::::::.
efiiciency of over 80%. y any of the above two methods, micro bubbles in range of 10 to 50 microns is formed t:=,.,,,::::::;<,;.~ ?iÃ>>';::s>:: :;'>:~ri:~:' which reduces the re cle ratio. cY
.: ::::::::.: :::::::: ::::::<~#~l~.::::::: =:: :=::.-:::::
:.::<=:::::::::::::::. :::::<:.::::::::::::::: :::::::.
Hydraulic Loading Rates in N-R DAF system -...:. .....
..:. .....
......::=::;.: ..
y iN
~ .............. ..... .~::,:::
::=:ti :.F:.
Salids loading rate is the ratio of the total amount of solid and FOG in influent bD the effective surfaoe area in the flotation tank. Uni is mass per unit area per unit tirne (kg/m2. hr).
Unit of solids loading rate is mass per unit area per unit time (kg1m2.hr), The average SI.R design load ranges from 4 icgtm2.hr up to 18 kglmz.hr with chemical addilion, In general, increasing the SLR will decrease float concentrartion.
The most advanced sewacle treatment system for the 21st Century Raw Sewage Dissolved Air Flotation System Advantages of the DAF System t Small, compact and robust, has small footprint and utilizes the space mast efficiently.
= Process and equipment specifically designed for eaoh application for optimum operation with TSS removal efficiency over 9596.
0- Rapid mixing and flocculation chamber integral part of DAF
* Dptimum use of coagulants and flocculants leading to their lox ............................ ...
............................................
and hence low operating cost ..::::::::::::::::::: =:=:::::::::::::::::::::::::::::
* The removal of solid sludge settled at the tank ...........................
irxiependent of the skimmer flights removing scum a~:Her~ ::::::::::::: :::::
............. .
.........:....::.................. :.....
... .
flotation tank is free of turbulence leadirg to ciearer...; ...:eEEf~;,,,,,;;;
. ......... ...
..... .. .. . ..... .. .......
* Design allows reasonable change in water _de......:-.;:..........
.:::s....::rm~ac :.:.:.:.............~ ....:......::....:-...::............
... ...............
flight submergence to accommodate change:::tn:::ftW-::.weight::air:fd:::.::::::::::::.::::
.........................
.....................................................
...............................................................................
.............
displacement ....................................................................
...............
..........................
* Flexible, designed to handle reasonable variatiori'i....................
iit[iri~ waiier ::::: .:::.:.:: ::::
._._..........................._..::................
quafity and to some extent flow rate, ................. ........................... ...........
:: ::, .................................................
* Robust and efficient DAF recycle pump provides :"~i::::;;~jiE
::::::::::::.:::::..::: ~--. . ......
..............._.
dissoNi efficie~with less horse er. The air eductar:
~ Y P~' ~-:::::::::::-::::::::
......:............... ...........
draws in ambient air and supplies it to the recycle stream.
...............................
compressed air supply is not required.
+ Amcunt of pressurized recycle flow, and amount of air mbced is easy to control, leading to higher flexibility.
4 Standard material of conatruction is staiinless steel. However, tank in other materials provided if required-* Easy to install and operate.
= Easy to service and clean, * High quality drive and pumps for long rnaintenance free . ....................
........... .................
........................ ...........
* Existing systems are operating smoothly and at very high efficieri'e~
........
.........
* Full support of experienced process designers and field personnel i before, during and after installation.
Besides the above, O11F sysUm has the technical and field support of Napier-Reid, a leading inncr+ative supplier of engineered solution and equipments for over 50 years- The combined cumulative ::::::.::::::
.......
........................
experience of Napier Reid's process designers in water and =
wastewaber treatment field is over 125 years.
The most advanced sewage treatment system for the 21st Century PATENT PENDING MADE IN CANADA SEWAGE TREATMENT T CHNOLC,.11 Raw Sewage Dissolved Air Flotation System DAF Applications ::Ind:~~ri~l * Poultry plants * Meat processing industries + Fish processing industries y Rendering plants ~ Dairy plants y Food processing industries ...............................................................
..................... ......................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .............. .... .......... . . . . . . . . .....
.......... ..... .......... ............. ........................ ~
0- PetfoleumfCil refinery :::::::....._yrn~ip~::::::::::::::::::;;;:::
* Petfochemical plants t Water treatment plant * Pulp and paper industfies Wasbewater treatment plant * Mining ~ Biological treatment plant it, Algae removal About Global'Narming Prevention Technolociies and the Public Protectiorl Action Committee, We have partners and associates with more than 50 years of experience and excellence in water and wastewater treatment, Global Warrning Prevention Technologies, The Public Protection Action Committee and associates are located in the greater Toronto area in the Province of Ontario, Canada.
Along wiif-i our partners and associates we supply engineering services, process equipment for water and wastewater treatment, and a patented waste gasification technology - Natural State Reduction System (NSRS). We have the technologies, resources and experience with our partr)ers to design, manufacture and irnplernent innovadve water systems:
Reverse Osmosis (RO) and wastewater treatment solution: Dissolved Air Flotation System (DAF):
We will do all that is possible to see that native reserves and communities in Canada have the most advanced technologies to preserve quality of life for the 21st Century. We provide tf ie highest quaiily of service, products and sales support in the industry today. With our partners our capabilities include, engineeririg, rnanufacturing, installation and field support services. Wiit-i our partners and associates, we have in-house personnel for complete mechanical, electrical and instrumentation process and conirol system design. With our partners, our designs focus on cost-effective solutions, simplicity of installation and ease of maintenance, 1 Al~'~ PENDING MADE IN CANADA 1.i _-: -JA R E E L Y
rjJGL0~AL wARMlhiC PRE'~ENTtON TECHNOLOGIES
POWER CONSUMPTION CALCULATION
FOR PROPOSED MBR WAS'TEWATER SEWAGE TREATMENT SYSTEM
POWEIR QTY OPERATING POWER
ITEM NAME (hp) . STATUS CONSUMPTION
(kWh/day) 1 Fine Screen 0.5 1 24 hours/day 9 operating One duty, one
~ ~ ~~~~~~ TPT ~lENT TECHNO G
~e-GLOE?AL W~RMINC, PREVE NT~ON TE~HNOIL-OGIES
In Association with the Public Protection Action Committee Raw Sewage Tr=eatment Technology Dissolved Air Flotation System (DAF) Cost-Effective, Environmentally Friendly Waste Sludge Solution for the 21 St Century W
.."- ' :.'2. 5. 41 ~f~=. tt- j kfc ~ .~
A ~F ..~
PARLIAMEN'T BUILDINGS
OTT'AWA
SEWAGE TREATMENT DISSOLVED AIR FLOTATION (DAF) SYSTEM
IS THE MOST ADVANCED AND EFFICIENT COMPACT SYSTEM FOR
THE REMOVAL OF TOTAL SUSPENDED SOLIDS (TSS), FECES, FATS, OILS, AND GREASES (FOG) FROM HOUSEHOLD, BUSINESSES OR ANY OTHER SOURCE OF CONTAMINATION IN
SEWAGE WASTEWATER. THE DAF SYSTEM IS 100% EFFECTIVE
TO ENSURE THE HEALTH AND WELL-BEING OF WORLD
COMMUNITIES IN NEED OF SEWAGE TREATMENT.
i PATENT PENDING MADE IN CANADA SEWAGE TREATMENT Chs a3LOGV
Raw Sewage Dissolved Air Flotation System Important Design Parameters of the DAF System ;::>:> :: ....: ....: . . ::>:::: ..: ....
.. .....
......... ..
..................... .. ....... ..........................
....................................................
Coagulation is the proaess of destabilizirq colloidal ~ ~ien~r~tr~t~ian ~i~ r~aivyr:~ater ...........
particles so that particle growlh can occur beeause of ......... ....._... ....... .
...- . . _... .,... .. .. . ..._ - - .......................__..........---.............. -.....
collisions. Coa9ulant is a chemical added to :=:::: _ ::i:::: : : ::::::::::
_=:::
particle ...... ... ... .. ... .
.. ........... ... ... ...... ... ... ... ... .. ..... ... .. . .
....... ................ . _ ....... ..._ destabilize the colloidal particles and help floc 4formation- . ....... ::: : -..: :. ..
.....:....................................
. ..
...........................................
_.................................................. .....
Floaculatian is the cess that brings ~ about the collisions K~
between the destabiliaed suspended and colloidal particies to inrm larger particles that can be removed ~ ~ec-rde E~o readily.
Coagulation and flocculation are the mechanisms by which the suspended particles and cotloidal materiais is removed from water in the floiation process. Optimization of coagula*ion and flocculation ia necessary for optimum performance of flotation system. The type and amount of chemical dosing, intensity of mncing, detention time in the rapid mixing zone and flocculation zone, and floa size are the key parameters that play important role in performanoe of the flotation system.
......._ -------------- ......... .......... ........... ..._ -- -....................
_.._.... .- -....
' Solid A .
Y_ Y
Air to solid rat9o is th~ principal parameter in design of a O:~~i suir~ ~itd ~i~~ am: r~r . .. ... . .. .... . ... .
.............................................
...............................................................
dissolved air flotatior system. It is a theoretical rneasure =_ ~r : - - : : . -::=::_ '~#it:~~n~t rf :~:a~r;
... . .. .
of quantity of air available . . .' per quantity of solid to be :
rem4ved. Typical values range between 0.005 - 0.06 ----------------- 7-~~~~~~._'i~:~;~ry:~lEl~l?~.....
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
................... ...........................
...... .................. ............
mUrrag. frac#acrr : s ... . ~a~bny iss~ra_ty ~ . . :: ::::
:.....:
................:....................:...................::..................
...............:.............:................... ..........:_..: .
..........
.. ... ............... ......__.._.................
...
..
.. ......
................
. ... . ............ . .$...... !. .... P.'e..sur~ ::.............. .....
.........:::::::::: :
For idissoMng saturatar vessel, the relation between ...............................................................................
...............................................................................
....
air ........... ..................... ........
_............................................ ..........._....................
........................... .................
A!S ratio, solubility of air, operating pres;iure, solid A~g" M
... .
...........
d~~
conoentration, flow rate and recycle rate is given by the pr~ssuct~ed lrsec~le ~frn~nr ra ...... e= m'............
............................
:................::......._.................._..._.........:... :.............
......... ...........
following equation: I g i: flo ........ w ~~pt ......... ps~~
. e The most advanced sewage treatment system for the 21 st CenturyF
PATENT PENDING MADE IN CANADA SEWAGE T E TM T CL. OL GY
Raw Sewage Dissolved Air Flotation System ................................
:: :::.:.::.::.... :::.::::::::::::..::....:.::.::.::::.:::..:._ ::,:::.::::..:. ::=:::::.::... :::::::.
::::: :. ................... ...................._...........................
...
............
...............................................................
................................. .:.::.... .::
::::.:.....:..........:.:...........
::: :.:::::.::::;;
.
;;:..... :::....~,;: = -The recycle ratio is the fraction of the final efiluent The hydraulic loading rate is a rneasurement of the volume produced which is rreturned and supersaturated with air of influent applied per unit effective surPace area per unit under pressure before entering the flotation tank where time. This results in process design figures expressed as the sudden pressure reduction caused release of air in equivalent up-flvw velocities with units of mlhr. HLR is form of micro bubbles. The recycle ratio ranges from 8% depended on various factors, however it ranges from 4 to to 15096 based on the quality of raw water ta be treated, 12 rnlhr. The maximum HLR must be less than the Air dissolution rate is proportional to absolute pressure as minimum rise velocity of the solid"ir particle to ensure per Henry's Law of partial pressure of gases adjacent to thA all of the particles will float to the water surface before liquids_ Hence, the higher the operating pressure of DAF the water reaches the discharge end of the tank Hydraulic pump or airMrater saturation vessel, higher the air ioading rate is checked based on influent flow rate and solubility and thus lower the required percentage recycle. also total flow rate (influent + recycie fiow).
Standard N-R DAF system eomes with DAF pump that operate at 120 psi and achieve above 92% air solubility.
The DAF pumps are capable of mixang 36 to 2ai SCFH air.
The air eductor laop draws in ambierrt air and supplies it to ;., .;:;:;; :~,>;;: ~>:=; : ; ~ir;::;;:;:
DAF PumP Pr G . Henee comessed air suPP Y is not reuired.
I
~;i't~r ...............................................................................
.....................................
...................................................:.
...............................................................................
.......................................
....................................................
...............................................................................
........................... ......
...................................................
............ ........
:::~It'::= :::=:::i;;;;~::::::_:>:::::: ~::: ::_'=._:::::;;::::::::::t:
=:::::<::::::'::s:::::?:;::::
:::=:::.-.:::::=:::= ::::::: ::=::=::::=:::::.::
_.:::::::::=::::::.::.:::::::::::::::=:::.:::::.:::::::=:::::=:::.-:::.:.::::.::.
....... .... .................... .................... .....................
................
If Napier-Reid's saturator vessel skid is selected instead of DAF pump to produce supersaturated water, it operates at 50 to 60 i ressure and air dissolving Ps gP ::;Tia~:
:>>::~:::::.::~::>::~.';::::;;:;:<':?:':=:.::'~::~;~:~?~:~i:;i~;~iiur=:;;;
;:~ ~:~:.~:::.~....................................................
:::::::::::::::.-::::::::::.
efiiciency of over 80%. y any of the above two methods, micro bubbles in range of 10 to 50 microns is formed t:=,.,,,::::::;<,;.~ ?iÃ>>';::s>:: :;'>:~ri:~:' which reduces the re cle ratio. cY
.: ::::::::.: :::::::: ::::::<~#~l~.::::::: =:: :=::.-:::::
:.::<=:::::::::::::::. :::::<:.::::::::::::::: :::::::.
Hydraulic Loading Rates in N-R DAF system -...:. .....
..:. .....
......::=::;.: ..
y iN
~ .............. ..... .~::,:::
::=:ti :.F:.
Salids loading rate is the ratio of the total amount of solid and FOG in influent bD the effective surfaoe area in the flotation tank. Uni is mass per unit area per unit tirne (kg/m2. hr).
Unit of solids loading rate is mass per unit area per unit time (kg1m2.hr), The average SI.R design load ranges from 4 icgtm2.hr up to 18 kglmz.hr with chemical addilion, In general, increasing the SLR will decrease float concentrartion.
The most advanced sewacle treatment system for the 21st Century Raw Sewage Dissolved Air Flotation System Advantages of the DAF System t Small, compact and robust, has small footprint and utilizes the space mast efficiently.
= Process and equipment specifically designed for eaoh application for optimum operation with TSS removal efficiency over 9596.
0- Rapid mixing and flocculation chamber integral part of DAF
* Dptimum use of coagulants and flocculants leading to their lox ............................ ...
............................................
and hence low operating cost ..::::::::::::::::::: =:=:::::::::::::::::::::::::::::
* The removal of solid sludge settled at the tank ...........................
irxiependent of the skimmer flights removing scum a~:Her~ ::::::::::::: :::::
............. .
.........:....::.................. :.....
... .
flotation tank is free of turbulence leadirg to ciearer...; ...:eEEf~;,,,,,;;;
. ......... ...
..... .. .. . ..... .. .......
* Design allows reasonable change in water _de......:-.;:..........
.:::s....::rm~ac :.:.:.:.............~ ....:......::....:-...::............
... ...............
flight submergence to accommodate change:::tn:::ftW-::.weight::air:fd:::.::::::::::::.::::
.........................
.....................................................
...............................................................................
.............
displacement ....................................................................
...............
..........................
* Flexible, designed to handle reasonable variatiori'i....................
iit[iri~ waiier ::::: .:::.:.:: ::::
._._..........................._..::................
quafity and to some extent flow rate, ................. ........................... ...........
:: ::, .................................................
* Robust and efficient DAF recycle pump provides :"~i::::;;~jiE
::::::::::::.:::::..::: ~--. . ......
..............._.
dissoNi efficie~with less horse er. The air eductar:
~ Y P~' ~-:::::::::::-::::::::
......:............... ...........
draws in ambient air and supplies it to the recycle stream.
...............................
compressed air supply is not required.
+ Amcunt of pressurized recycle flow, and amount of air mbced is easy to control, leading to higher flexibility.
4 Standard material of conatruction is staiinless steel. However, tank in other materials provided if required-* Easy to install and operate.
= Easy to service and clean, * High quality drive and pumps for long rnaintenance free . ....................
........... .................
........................ ...........
* Existing systems are operating smoothly and at very high efficieri'e~
........
.........
* Full support of experienced process designers and field personnel i before, during and after installation.
Besides the above, O11F sysUm has the technical and field support of Napier-Reid, a leading inncr+ative supplier of engineered solution and equipments for over 50 years- The combined cumulative ::::::.::::::
.......
........................
experience of Napier Reid's process designers in water and =
wastewaber treatment field is over 125 years.
The most advanced sewage treatment system for the 21st Century PATENT PENDING MADE IN CANADA SEWAGE TREATMENT T CHNOLC,.11 Raw Sewage Dissolved Air Flotation System DAF Applications ::Ind:~~ri~l * Poultry plants * Meat processing industries + Fish processing industries y Rendering plants ~ Dairy plants y Food processing industries ...............................................................
..................... ......................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .............. .... .......... . . . . . . . . .....
.......... ..... .......... ............. ........................ ~
0- PetfoleumfCil refinery :::::::....._yrn~ip~::::::::::::::::::;;;:::
* Petfochemical plants t Water treatment plant * Pulp and paper industfies Wasbewater treatment plant * Mining ~ Biological treatment plant it, Algae removal About Global'Narming Prevention Technolociies and the Public Protectiorl Action Committee, We have partners and associates with more than 50 years of experience and excellence in water and wastewater treatment, Global Warrning Prevention Technologies, The Public Protection Action Committee and associates are located in the greater Toronto area in the Province of Ontario, Canada.
Along wiif-i our partners and associates we supply engineering services, process equipment for water and wastewater treatment, and a patented waste gasification technology - Natural State Reduction System (NSRS). We have the technologies, resources and experience with our partr)ers to design, manufacture and irnplernent innovadve water systems:
Reverse Osmosis (RO) and wastewater treatment solution: Dissolved Air Flotation System (DAF):
We will do all that is possible to see that native reserves and communities in Canada have the most advanced technologies to preserve quality of life for the 21st Century. We provide tf ie highest quaiily of service, products and sales support in the industry today. With our partners our capabilities include, engineeririg, rnanufacturing, installation and field support services. Wiit-i our partners and associates, we have in-house personnel for complete mechanical, electrical and instrumentation process and conirol system design. With our partners, our designs focus on cost-effective solutions, simplicity of installation and ease of maintenance, 1 Al~'~ PENDING MADE IN CANADA 1.i _-: -JA R E E L Y
rjJGL0~AL wARMlhiC PRE'~ENTtON TECHNOLOGIES
POWER CONSUMPTION CALCULATION
FOR PROPOSED MBR WAS'TEWATER SEWAGE TREATMENT SYSTEM
POWEIR QTY OPERATING POWER
ITEM NAME (hp) . STATUS CONSUMPTION
(kWh/day) 1 Fine Screen 0.5 1 24 hours/day 9 operating One duty, one
2 Submersible Feed 5 2 stand-by 90 Pumps 24 hours/day operating One duty, one
3 MBR Suction 5 2 stand-by 90 Pumps 24 hours/day operating One duty, one
4 Aeration Blowers 12.5 2 stand-by 224 24 hours/day operating Periodically Submersible Sludge 3 1 operating 1 pump Assume 0.5 hours/day TOTAL POWER CONSUMPTION (kWh/day) 414
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002559300A CA2559300A1 (en) | 2006-09-08 | 2006-09-08 | Sewage treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002559300A CA2559300A1 (en) | 2006-09-08 | 2006-09-08 | Sewage treatment technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2559300A1 true CA2559300A1 (en) | 2008-03-08 |
Family
ID=39153677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002559300A Abandoned CA2559300A1 (en) | 2006-09-08 | 2006-09-08 | Sewage treatment technology |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2559300A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432082A (en) * | 2011-10-26 | 2012-05-02 | 桂林市世环废气处理设备有限公司 | Air floating type suspended matter processing system |
| DE102013101401A1 (en) * | 2013-02-13 | 2014-08-14 | Tutech Innovation Gmbh | Pretreating horse manure including urine and litter for subsequent fermentation, comprises bringing horse manure with aqueous medium, and circulating a mixture of horse manure and aqueous medium for separation of horse manure and litter |
| CN104671320A (en) * | 2015-03-12 | 2015-06-03 | 大庆市海油庆石油科技有限公司 | Mixing efflux air floating machine with oil collecting tank |
| CN104829007B (en) * | 2015-05-10 | 2016-08-17 | 浙江美纳环保科技有限公司 | A kind of air-dissolving air-float sewage-treatment plant possessing self-cleaning function |
| CN107012847A (en) * | 2017-04-27 | 2017-08-04 | 昆明理工大学 | A kind of algae processing unit and method |
| CN113060866A (en) * | 2021-03-26 | 2021-07-02 | 山东水利建设集团有限公司 | Method and system for treating chemical-added water |
-
2006
- 2006-09-08 CA CA002559300A patent/CA2559300A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432082A (en) * | 2011-10-26 | 2012-05-02 | 桂林市世环废气处理设备有限公司 | Air floating type suspended matter processing system |
| DE102013101401A1 (en) * | 2013-02-13 | 2014-08-14 | Tutech Innovation Gmbh | Pretreating horse manure including urine and litter for subsequent fermentation, comprises bringing horse manure with aqueous medium, and circulating a mixture of horse manure and aqueous medium for separation of horse manure and litter |
| CN104671320A (en) * | 2015-03-12 | 2015-06-03 | 大庆市海油庆石油科技有限公司 | Mixing efflux air floating machine with oil collecting tank |
| CN104829007B (en) * | 2015-05-10 | 2016-08-17 | 浙江美纳环保科技有限公司 | A kind of air-dissolving air-float sewage-treatment plant possessing self-cleaning function |
| CN107012847A (en) * | 2017-04-27 | 2017-08-04 | 昆明理工大学 | A kind of algae processing unit and method |
| CN113060866A (en) * | 2021-03-26 | 2021-07-02 | 山东水利建设集团有限公司 | Method and system for treating chemical-added water |
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