Jowa

General The JOWA STP 2010 series Sewage Treatment plants are approved for operation onboard ships in accordance with IMO MEPC.159(55) and meet all the requirements in Marpol 73/78 annex IV. The unit runs automatically with no operator attendance. It can be fed by gravity or a fully integrated vacuum unit can be fitted as an option. The unit’s bioreactor ensures optimum biological treatment with no offensive odours produced. System Description The JOWA STP 2010 is a submerged fixed-film unit with a dedicated aeration system that provides major advantages for the operator. The bioreactor contains a highly efficient, cross-flow structured matrix on which a stable biomass adheres and rapidly grows. Utilises natural biological processes and intelligent design to ensure the strict discharge limits are met without the need for filters. In the clean water tank chlorine is used to disinfect the treated waters. A non-toxic de-chlorination chemical ensures the discharge meets stringent quality standards. The unit is very compact. In addition, the stable biomass tolerates hydraulic and organic shock loadings better than the alternatives. Low flows and loadings can also be accepted for extended periods. JOWA’s extensive experience in shipboard sewage treatment gives the operator a sewage plant that is inexpensive to run, reliable and easy to maintain. Ultimately the ocean environment is the winner. The JOWA STP 2010 Sewage Treatment plants are available in a range of sizes from 15 – 60 persons. Sizes outside the range are available upon request. Capacity TYPE: STP
STP2010-25
STP2010-40
STPSTP2010-60
Capacity:(At black water gravity system)
15 P.E
25 P.E
40 P.E 60 P.E
hydraulic load: (m3/d)
1,05
1,75
2,80
4,20
organic load: (BOD5/day)
0,62 kg
1,03 kg
1,64 kg
2,46 kg
Dimension LWH: (m)
1,5 x 0,9 x 1,6 2,1 x 0,9 x 1,8
2,1 x 1,3 x 1,8
2,4 x 1,8 x 1,8
Weight (empty/full, kg)
871/2391
1062/3492
1323/3811
1579/7589

modern biological equipmentgeneral 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. system description the jowa bio stp is an aerated, submerged, fixed-film unit with a proprietary aeration system that provides major advantages for the operators. the macerating pump at the inlet prevents the unit from clogging when it macerates the raw incoming sewage and the biomass. This creates an optimum mixed wastewater that is easy to break down in the bioreactor. the bioreactor contains a cross-fluted structured matrix, on which the degrading bacterial biomass adheres and rapidly grows. The bioreactor ensures maximum optimum biological treatment, and the efficient aeration system ensures that the biological process produces no offensive odors. due to the high de-gradative power of the jowa bio stp, it is much smaller than comparable biological degradation ones using suspended growth (rather than fixed-film) systems. In these aerated systems, the biomass concentration cannot be as high as in a fixed-film system, so the aeration volume has to be much larger, jowa bio stp has a smaller footprint, which makes it very suitable for marine use. The bioreactor has a quick biological start period and is also non-sensitive to long shutdown periods due to continuous sludge return. main features macerating pump prevents the system from clogging type approved imo res. Mepc. 2 (vi) compact design suitable for retrofits and new buildings quick starting process aerated odorless system non-sensitive to long shutdown periods suitable for all sewage onboard a ship capacity type persons
black
water lenght
(mm) width
(mm) height
(mm) empty
weight
(kg) operational
weight
(kg) stp 1 10 1000 1000 1200 500 1100 stp 2 25 1475 1100 1600 650 2050 stp 3 35 2065 1100 1600 800 2780 stp 4 50 2150 1200 1800 1100 3950 stp 5 75 3000 1800 2000 1700 5940 stp 6 200 4000 1800 2200 2400 13200