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BIO STP - SEWAGE TREATMENT PLANTMODERN BIOLOGICAL EQUIPMENT
The new designed JOWA BIO STP (Sewage Treatment Plant) is made for automatic operation onboard ships in accordance with IMO MEPC2(VI) and meets all the requirements in Marpol 73/78 annex IV.
JOWA BIO STP can handle all types of ships, sewage, black and grey water, black water only and galley water. The sewage can be led to the unit via both gravity and vacuum system. The grey water can also be led to the unit for sterilizing only.
FRESH W
ATER HA
ND
LING
SYSTEMTH
E JOW
A G
ROU
P
For many decades now
, Jowa has been a
trusted and reliable supplier of technical environm
ental protection equipment to
the shipping industry. We can offer every
conceivable service for installation supervision, operation, m
onitoring and control of Jowa’s
equipment. You can choose betw
een our own
personnel or one of our trained representatives all over the w
orld.
SwedenJOWA AB
Tulebovägen 104S-428 34 Kållered
Telephone: +46-31 726 54 00Telefax: +46-31 795 45 40
website: www.jowa.see-mail: [email protected]
NorwayJOWA NORGE A/S
Solbergveien 223057 Solbergelva
Telephone: +47-3223 6700Fax: +47-3223 6701
e-mail: [email protected]
GermanyJOWA GERMANY GMBHHansestrasse 21 / Haus 218182 Rostock-Bentwisch
Telephone : +49-381 6302 660Fax : +49-381 6302 641website: www.jowa.dee-mail: [email protected]
NetherlandsJOWA HOLLAND
Ebweg 612991 LS Barendrecht
Telephone : +31(0)180 55 71 33Fax : +31(0) 180 61 11 27
e-mail: [email protected]
USAJOWA CONSILIUM US, INC.
59 Porter RoadLittleton, MA 01460
Telephone: +1-978 486 98 00Fax: +1-978 486 01 70
website: www.jowa-consilium.come-mail: [email protected]
SingaporeJOWA (S) PTE., LTD.
26, Lorong G Telok KurauSingapore 426195
Telephone: +65-6872 8802Fax: +65-6872 8896
e-mail: [email protected]
ChinaJOWA (Shanghai)
Marine Equipment Co.,Ltd.5111 Luo Shan Road, Pudong New Area
Shanghai 201204Telephone: +86-21-3390 6890
Fax: +86-21-3390 7550e-mail: [email protected]
System D
escription
� e JOW
A BIO ST
P is an aerated, submerged, fi xed-fi lm
unit with
a proprietary aeration system that provides m
ajor advantages for the operators.
� e macerating pum
p at the inlet prevents the unit from clogging
when it m
acerates the raw incom
ing sewage and the biom
ass. � is creates an optim
um m
ixed wastew
ater that is easy to break down
in the bioreactor.
� e Bioreactor contains a cross-fl uted structured matrix, on w
hich the degrading bacterial biom
ass adheres and rapidly grows. � e
bioreactor ensures maxim
um optim
um biological treatm
ent, and the effi cient aeration system
ensures that the biological process produces no off ensive odors.
Due to the high de-gradative pow
er of the JOW
A BIO ST
P, it is m
uch smaller than com
parable biological degradation ones using suspended grow
th (rather than fi xed-fi lm) system
s. In these aerated system
s, the biomass concentration cannot be as high as in a fi xed-
fi lm system
, so the aeration volume has to be m
uch larger, JOW
A BIO
STP has a sm
aller footprint, which m
akes it very suitable for m
arine use. � e Bioreactor has a quick biological start period and is also non-sensitive to long shutdow
n periods due to continuous sludge return.
Capacity
TypePersons B
lack W
ater
Lenght
(mm
)W
idth (m
m)
Height
(mm
)E
mpty
Weight
(kg)
Operational
Weight (kg)
STP 1
101000
10001200
5001100
STP 2
251475
11001600
6502050
STP 3
352065
11001600
8002780
STP 4
502150
12001800
11003950
STP 5
753000
18002000
17005940
STP 6
2004000
18002200
240013200
Main features
Macerating pum
p prevents the system from
clogging »
Type approved IMO
RES. M
EPC.2 (V
I) »
Com
pact design suitable for retrofi ts and new buildings
»
Quick starting process
»
Aerated odorless system
»
Non-sensitive to long shutdow
n periods »
Suitable for all sewage onboard a ship
»
Approvals: SBG
, RM
RS and C
CS
»
P&I D
iagram Functional D
escription
1. � e sewage is led to the Pre-treatm
ent chamber of the ST
P via a gravity or a vacuum
system. � e raw
sewage is m
acerated to very sm
all pieces before it is pumped into the Bioreactor.
2. In the Bioreactor the wastew
ater is driven upwards by strategically
placed aerators over alternate columns of the m
atrix and it fl ows
downw
ards in the adjacent column. In this w
ay, the effl uent moves
in a serpentine fashion through the whole of the Bioreactor to
ensure maxim
um contact tim
e and optimum
biological treatment.
� e sludge in the bottom of the bioreactor is led back to the pre-
treatment tank and is m
acerated again.
3. In the end of the biological process the water spills over into
the settling chamber. � e rem
aining suspended solids are removed
into the specially designed settling chamber. � e settled solids are
returned back to the pre-treatment cham
ber by a solids airlift.
4. � e treated water w
ith very low values of BO
D and SS is sterilized
with chlorine or by U
V light before it is pum
ped overboard.
