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Biological sewage treatment plants
Evac's new generation sewage treatment plants fulfil the IMO and US Coast Guard regulations, and the technical construction meets tight quality expectations. Biological sewage treatment solution is fully biological odourless process, which produces no toxic gases.
Biological sewage treatment plants have been designed to minimize technical problems and maximize total process reliability. They are suitable for vacuum and gravity toilet systems, but also for processing both black and grey water - or black water only.
Biological sewage treatment plant has two aeration chambers for high efficiency and optimized bio process. When discharging sludge, there is no risk to accidentally destroy the bio population.
Biological sewage treatment plant can be dimensioned according to the number of people onboard and system parameters. The unit is small in dimension when compared to bio processing capacity. It is also flexible as processing tanks can be split in special solutions.
Fully automatic operation means that only a little maintenance is needed. Simple construction results in low maintenance costs and low spare part consumption.
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Biological Sewage Treatment Plant "KD-OceanClean 50"
Type-tested acc. to IMO-Res. MEPC.2(VI), Annex IV of Marpol 73/78 and Helsinki convention by SBG.
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Biological Sewage Treatment Plant "KD-OceanClean 100Vac"
Type-tested acc. to IMO-Res. MEPC.2(VI), Annex IV of Marpol 73/78 and Helsinki convention by SBG.
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Biological Sewage Treatment Plant "KD-OceanClean 15"
Type-tested acc. to IMO-Res. MEPC.2(VI), Annex IV of Marpol 73/78 and Helsinki convention by SBG.
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Biological Sewage Treatment Plant "KD-OceanClean 20"
Type-tested acc. to IMO-Res. MEPC.2(VI), Annex IV of Marpol 73/78 and Helsinki convention by SBG.
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NDUSTRIAL SECTOR: The compact biological waste water treatment plants PETPUR designed by PETER TABOADA® are Physic - Biological treatment systems that incorporate:
Pre-filtration stage, where water solids are separated.
Before the Biological Reactor By means of a phisic setting process the separation of the fat and floating particles from the water
In the digester the sludge is sedimented and the anaerobic bacteria metabolize the organic materia, by means of aerating, hydrolysing and mineralising it.
In the biological filter takes place the organic materia biological oxidation by the microorganisms and oxygen injection. The biological filter is filled with plastic material (estructural media).
Depending on the needs, sludge can also be treated.
Optionally PETER TABOADA® has total oxidation systems
PETER TABOADA® also commercialises compact systems for special applications as: septic tanks, biological filters, fat-water separators, simple and double stage oily water separators, decanters, sand separators, strainers, etc.
MARINE SECTOR: the sewage treatment systems modular type, so they are easily fitted in any available space of a ship, this system even can be installed in already built ships. In our system the process is:
Filtration and separation of in water solids.
Biological process, where the oxidation of the organic matter is made.
Produced sludge treatment.
Clarification and disinfection before discharge off board.
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Sewage Treatment Plants (STP) designed for the biological treatment of black and grey waters (from WC and urinals or from sinks, showers, laundry and galley) generated onboard vessels.
The treatment purifies and disinfects the water in order to achieve a quality enough to meet all regulation requirements.
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ORCA® Advantages
Orca® is a physical/chemical sewage treatment plant utilizing 5 % chlorine solution for disinfection. It is specifically designed for marine applications.
The treatment process is simple and designed to be sludge free.
Orca® sewage treatment plants do not need testing of wastewater in aeration process. They function both in sea and brackish water and in fresh water. They are lightweight and need a small footprint only.
Orca® sewage treatment plants are equipped with On/Off switch.
Large Orca® units are modular.
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Rely on a proven sewage treatment system
With over 400 installed systems in the last 30 years, the reliability of Marinfloc Neptumatic systems has been proven over and over again. And our customers keep coming back to us to order new systems.
Marinfloc Neptumatic handles sewage and wastewater (blackwater and greywater) in a system that combines both oxidation and chemical treatment. It has a high capacity combined with small outer dimensions.
You can feel confident that your wastewater will be processed correctly in accordance with the IMO MARPOL regulations.
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This wastewater treatment technology has been utilized by Red Fox for over (25) years. This design is utilized on vessel applications.
The process used by the MSD involves the same three steps as the conventional unit, but the clarifier operates under a fluid head pressure allowing flocculation and settling of the solids in the clarification chamber to occur even when the vessel is in motion:
Coarse Screening: As the influent enters the sewage treatment unit, it passes through a bar strainer. This strainer will catch any large trash such as rags, plastic bags, etc., and prevent it from entering the system.
Aeration: Supports naturally occurring bacteria that eliminates the waste.
Clarification & Settling: Causes the separation of the bacteria sludge from the treated water.
Disinfection: Eliminates the presence of any living bacteria before discharge of the effluent into the environment.
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Evac MBR
Membrane bioreactor series represent advanced wastewater treatment solutions for black and grey water for all the vessels. The Evac MBR is a future alternative to traditional biological units. With its membrane technology, it can easily fulfill all current and future treatment requirements. In certain cases, effluent from the unit can even be re-cycled for dedicated use.
Kubota membrane technology is the world market leader in wastewater treatment membrane elements. The Evac MBR is also available as a combined unit, in which equalizing of the hydraulic load and vacuum generation are directly connected. As a separate treatment unit, the Evac MBR can also be used for gravity drains.
Owing to low pressure, submerged membranes power consumption of Evac MBR is low. Quality of effluent is extremely high in all sea conditions, and it exceeds all current specifications. Foam control is effective and sludge removal intervals are long.
Membrane's life expectancy is 7 years or more.
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Hamworthy leads the market in waste water treatment systems for ships. The increased size and number of cruise ships have led to concerns on the impact of their waste discharges on the natural environment. Hamworthy has met the challenge of protecting the environment by developing a new waste water treatment process based on biological degradation and membrane separation.
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The siClaro® BMA® process - the future-oriented technology to treat wastewater produced on board.
The use of the siClaro® filter in separate filter chambers allows the retrofitting of existing wastewater cells with a biological sewage treatment stage.
The modular filter chambers normally allow the system to be retrofitted without having to open the ship%u2019s hull.
The siClaro® filter can, of course, be fitted directly in a wastewater cell too. The minimum cell height is then approx. 1.50 m. The membrane system has been homologated by the %u201CSee-Berufsgenossenschaft%u201D. (German Maritime Employer's Liability Insurance Association)
Homologation certificate IMO %u2013 Resolution MEPC.2 (VI); Approval of ship chandlery pursuant to Directive 96/98/ EC of the Commission on Ship Chandlery.
On terms of purification efficiency, siClaro® BMA® wastewater systems safely comply with the stricter effluent figures of the %u201CAlaska Legislation on treated sewage and grey water discharge%u201D from December 2000.
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Evac OnlineFlex
The Evac OnlineFlex pump family is a combination of proven "old" and innovative "new" technologies in a compact package. With the eight different OnlineFlex configurations we can secure a safe vacuum creation.
The OnlineFlex pumps are designed to create and maintain constant vacuum in a vacuum toilet in a vacuum toilet system with robust mechanical components. Intermediate tanks are not needed. The Flex family is a second generation range of Evac Online vacuum units for ships. The concept was specially designed to increase the installation flexibility without compromises.
Advantages:
-Flexible installation and operation
- Robust "plug and play" design
- Small footprint
-Silent
- Evac Speed Boots models with soft start
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Vacuum tank units
New vacuum tank unit heavy duty series are vacuum tank solutions for passenger and military vessels, in which traditional method is enhanced by new pump technology.
Energy consumption of the vacuum tank units is more than 50% lower than that of competing technology. Waste water is not in connection with vacuum generation device.
Extra vacuum reservoir and powerful pumps make complex new piping designs possible on large vessels even with only one vacuum generation unit.
In vacuum tank units separate discharge pumps feed waste water mixing tanks in batches in combination with advanced treatment solutions. Tank units have low maintenance.
Fewest pumps in a large collecting system means less electric drives and failures. Pump capacities are upgradable with a selection of different makes.
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Ejector Vacuum collecting units DN 80 and DN 100
In the ejector vacuum collecting units (DN 80 and DN 100) aeration effect of sewage means that there is no need for additional aeration of vacuum collecting units. This means that there are not any hazardous H2S gases and/or odors from aerobic waste water process.
The ejector vacuum collecting units are made with proven, robust technology. They are equipped with established centrifugal pumps. Evac ejector vacuum collecting units have the best type of vacuum creation method in marine applications.
Ejector vacuum collecting units have flexible design with large number of different variations and vacuum tank alternatives. They can be directly mounted in a sewage treatment plant for ships holding tank. Vacuum collecting units are simple and reliable. They have fewer moving parts than other solutions.
Ejector vacuum collecting units need extremely low maintenance. There is full bore access to collecting units, and no mess or trouble with macerating devices due to foreign objects. Ejector vacuum collecting units are also available as Easyfit designs.
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nnovative thinking and extensive
experience with traditional marine
equipment including vacuum toilets
systems has allowed Techni SA to
develop a complete range of reliable
vacuum units.
TecVac vacuum sanitation systems
represent today the most advanced
vacuum technology suitable for every
ship. State of the art construction,
reliability, long life endurance, minimum
maintenance and high automation are
their characteristics. Suitable for grey and
black water systems combined or not, for
systems incorporating a sewage
treatment plant or holding tank they can
offer weight and space saving solutions
for any type of ship. Easy to install, offer
design flexibility without incurring extra
costs and can be delivered with Biocon
sewage treatment systems in compact
units.
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Characteristics and advantages
ACO Maripur represents the highest possible standard of wastewater treatment plant currently available to the marine market. The ACO Maripur, with low-pressure micro-filtration units, offers the following advantages:
%u2022 Compact process due to high sludge concentration in the reactor. This equates to a greatly reduced footprint allowing more effective use of limited space on board ships. Power requirements for even the largest 200-man units are extremely low compared to comparable sidestream crossflow systems.
%u2022 Removal rates are significantly better than those required by current legislation. This gives operators the confidence that they will meet all likely future legislation and may even be allowed to discharge waste water in areas where this is currently prohibited (zero-emission areas).
%u2022 No need for an environmentally harmful and expensive secondary treatment stage for disinfection. Secondary chlorination or UV sterilisation, indispensable in conventional systems, are not necessary for biological membrane systems which form a physical barrier to the activated sludge, suspended solids, bacteria and even viruses.
%u2022 The application of micro-filtration units instead of conventional settlement means the ACO Maripur is unaffected by ships movement.
%u2022 Simple, automated process, requires minimal operator intervention and training.
%u2022 Able to treat both black and grey water (including laundry and galley water) in one reactor. This reduces the risk of further expense should incoming legislation require total treatment.
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Hamworthy is the world’s leading manufacturer of marine sewage treatment plant. For over three decades Super Trident sewage treatment plants have been widely regarded as standard specification on all vessels up to the largest cruise liners. Over 6000 plant have been installed in ships across the world.
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Operating principle Biological Sewage Treatment system MSD-II
Waste water enters the system at the inlet (1).
The blower (2) provides air and causes the waste water to circulate through the submerged biofilter (4) by means of the airlift (3), a simple but reliable mammoth-pump principle.
The micro-organisms that grow on the surface of the media break down the organic particles in the waste water biologically.
Treated water flows to the disinfection tank (7) via the spillover (6).
The disinfection pump (8a) gives out liquid disinfectant in precisely measured doses so as to eliminate any remaining bacteria and viruses, resulting in high-quality treatment coefficients and effluent suitable to discharge overboard.
Grey water can enter the unit either through the grey water inlet (13) for disinfection only, or through the inlet (1) for biological treatment.
The discharge pump (9) and level switches (10) automatically maintain substance levels in the disinfection tank (7). A limited amount of sludge (11) settles at the bottom of the unit and can be released through air (12) and discharged by the pump (9).
An UV disinfection reactor (8b) can be installed as an alternative to the standard disinfection pump.
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BIOEPURO
sewage treatment plant per liquami
The unit is completely pre assembled and can be easily installed on board by using a crane. Every unit is duly tested before delivery, and our skilled engineers will start-up the plant once installed.
Normally, only the sewage from W.C. and urinal passes through the wole plant, while the water from washbasins, showers, etc. Is passed directly to th echlorination tank where eventually, sterelization takes place, because it does not need any biological treatment.
The sewage to be treated, enters the pre-aeration-separation tank where, through special diffusers, air is added, in order to supply the neccessary amount of oxigen for the breeding of micro-organisms required for the process.
At this stage, all bio-degradable matter; a macerator of our own design can be installed. After this, the pre-treated sewage passes to the aeration thank where the bacteria mass in increased further, and, after a sufficient retention period, is delivered to the settling tank by an air-lift.
This air-lift can be considered as the heart of our plant and because its output is self-regulating, it is possible to obtain an almost costant output, indipendent of the sewage supply rate.
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The RWO WWT BIOPUR waste-water treatment system is a sewage treatment for black and grey water or only black water, approved in accordance with IMO Resolution MEPC.2(VI) and operating with an aerobic biological cleaning stage.
The system mainly consists of aeration-, settling- and disinfection tank, integrated blower, discharge pump, fixed-film reactor for stabilisation and optimisation of the process, the very low effluent values of BOD5 achieved during the type testing highlight the exceptional efficiency of RWO's waste-water treatment system WWT BIOPUR.
Advantages at a Glance
Complete package, skid mounted, compact small footprint design
Plug and play unit, ready for operation for least amount of onboard installation work
Suitable to treat black and grey water or black water only
Submerged fixed-film reactor giving process stability and excellent effluent results
Fully automatic operation, easy to maintain and low running costs
Vacuum systems and grease traps are available
Suitable for both gravity and vacuum sewage drainage
Special design and large capacities available
Type approved acc. to IMO-Resolution MEPC.2(VI) by SBG and EC-conformity in accordance with MED
Approved in accordance with HELCOM regulations for use in the Baltic Sea
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The BIOCON system represents today the
most effective way of the sewage
physicochemical process in marine
vessels.Its operation is based on a
physicochemical process under the oxygen
presence for the oxidation of the organic
substances and the bacteria disinfection
through the action of Chlorine in the form of
NAOCL.(sodium hypochlorite)
The quality of effluent upon the process
completion is always suitable for discharge
overboard according to the strictest
legislation that is valid Internationally and
especially IMO Resolution MEPC 2(VI) of
IMO-592E (Recommendation on International
Effluent Standards and guidelines for
performance tests for sewage treatment
plants).
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The MEMROD®-Process is a bioreactor with high biomass concentration. Submerged membrane filtration guarantees a pure effluent without any suspended solids and without the requirement of disinfection.
MEMROD® permits both black and grey wastewater as well as galley wastewater to be treated in a single reactor system. The effluent levels are better than the requirements of the International Maritime Organisation (MARPOL, Annex IV) and both the future
standards MEPC.159 (55) and the USCG/Alaska-Rules.
Advantages at a Glance
Compact, packaged system
Highest effluent quality
For black, grey as well as galley wastewater
No disinfection necessary
High sludge age leading to highly effective BOD5 and nitrogen degradation
Extremely low excess sludge production
Zero suspended solids in effluent
Safe for crew and ship / No chemicals required
Very low energy consumption
Fully automatic, with low maintenance and operating costs
No odour emissions thanks to effective odour control
Stable cleaning efficiency, even with varying inflow conditions
Fulfilling IMO (MARPOL, Annex IV, MEPC.159 (55) and USCG/Alaska-Rules).
The right system for cruise vessels, navy ships and mega yachts
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This is a waste water treatment system ideal for any kind of marine vessel or motor yacht
where design requests minimum space.
The MINI-BIOCON systems are approved by DNV complying with IMO/MARPOL standards
and are in accordance with 96/98/EC MED Directive. (Certificate No MED-B-2745)
ADVANTAGES
Robust design easy to install
Totally constructed by high grade 316L stainless steel
Macerator pump from SS316L impeller & housing
Compact in size (650 x 550 x 650)
Fully automatic cycles driven by PLC
Equipped with screen video monitor where
Main parameters can be adjusted and operations steps be visualized
The automation control of the transfer pump, and holding tank levels is directed by the Mini-Biocon electrical panel
Chlorine pump and refill tank can be installed wherever convenient
Possible to operate manually in emergency
Reduced maintenance requirements
Low initial cost
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Waste water treatment for ships
