HAMANN offers a full range of high quality sewage treatment plants (STP), also referred to as marine sanitation devices (MSD) for offshore and inland vessels. Sewage and greywater treatment equipment from HAMANN is the preferred choice of many of the world’s leading shipyards, ship operators, ship owners and ship managers. The HAMANN product range of sewage treatment equipment covers all applications in the marine industry, including yachts and superyachts, ferries and passenger vessels, cruise ships, commercial and naval vessels and offshore installations.
REASONS TO CHOOSE HAMANN SEWAGE TREATMENT EQUIPMENT
OUTSTANDING CUSTOMER SUPPORT
Our team is at the customer‘s side from the early planning stage to operation. Direct, personal and flexible.
TAILORED SOLUTIONS
We are the specialists in sewage systems. We listen carefully, provide expert consultancy and then offer the best system for the customer‘s project. Providing customer specific solutions is part of HAMANN‘s DNA.
REPRESENTED WORLDWIDE
Our GLOBAL NETWORK of more than 40 sales agents and service partners provides customer support and technical field service around the world. Wether you are in the market for new sewage system components or you need spare parts or technical service, either HAMANN AG direct or one of our official sales agents and certified service partners is there to help. Find the partner closest to you here on our website.
QUALITY MADE IN GERMANY
All our products are designed and made in Hollenstedt, Germany. Our quality management system is accredited by DNV to the ISO 9001 standard. High-grade materials and components and superb workmanship distinguish our products. That shows in the details like the quality of the welds on our pipes, frames and tanks as well as clean and secure cable routing.
KEY FEATURES OF HAMANN SEWAGE TREATMENT PLANTS
MINIMISED FOOTPRINT
Due to our technology and design, the footprint of HAMANN sewage treatment plants (STP), or marine sanitation devices (MSD) can be significantly smaller than comparable systems from other manufacturers.
OPTIONAL ON-SITE ASSEMBLY FOR RETROFITS
HAMANN plants can be almost completely assembled at the location of installation on board the vessel to facilitate movement to the site through most doors and hatches. A huge benefi t in refi t projects, where this feature can often spare cutting an opening into the hull, saving a lot of time and costs.
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EASE OF OPERATION & LOW MAINTENANCE
Routine functions on HAMANN plants are fully automatic and no specialised skills are required for daily operation. Our technology eliminates the need for fi lters and membranes, which would require a lot of work for regular cleaning and replacement. Routine maintenance on HAMANN plants can be carried out quickly and easily by the crew on board. The open design allows instant access to all components for inspection and service purposes.
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RELIABILITY
Proven technology and manufacturing to the highest quality standards combined with straightforward operation and low maintenance requirements give HAMANN plants the reliability and longevity they are known for around the world.
HL-CONT Plus SEWAGE TREATMENT PLANTS
HAMANN HL-CONT Plus sewage treatment plants (STP), or marine sanitation devices (MSD), are available in many different sizes, offering treatment capacities from 3000 litres/day up to 288000 litres/day. Stainless steel construction on frames, top-quality components and extensive customisation options make these systems the all-rounders in our STP program. HAMANN HL-CONT Plus plants are renowned for their compact dimensions. In addition, they can be almost completely assembled at the location of installation on board the vessel.
KEY FACTS HAMANN HL-CONT Plus
AVAILABLE WITH IMO OR USCG CERTIFICATION
We offer our HAMANN HL-CONT Plus sewage treatment plants, or marine sanitation devices in two different versions. The standard versions carry IMO MEPC.227(64) (excluding section 4.2), EU-MED and UK-MER certification. The USCG versions are certified as MSD Type II according to US 33 CFR 159 (US Coast Guard Type 2 MSD) and also carry IMO and EU-MED certification.
EXTENSIVE CUSTOMISATION OPTIONS
We offer a wide range of customization options for HL-CONT Plus sewage treatment plants. This enables us to supply a system that exactly meets the customer’s specifications.
OPTIONAL ON-SITE ASSEMBLY FOR RETROFITS
HL-CONT Plus plants can be almost completely assembled at the location of installation on board the vessel to facilitate movement to the site through most doors and hatches. A huge benefit in retrofit projects, where this feature can often spare cutting an opening into the hull, saving a lot of time and costs.
EASE OF OPERATION & LOW MAINTENANCE
Routine functions on HL-CONT Plus plants are fully automatic and no specialised skills are required for daily operation. Our technology eliminates the need for filters and membranes, which would require a lot of work for regular cleaning and replacement. Routine maintenance on HAMANN plants can be carried out quickly and easily by the crew on board. The open design allows instant access to all components for inspection and service purposes.
COMBINED BLACK WATER & GREY WATER TREATMENT
As all HAMANN plants, HL-CONT Plus systems are designed to treat black water and grey water as a sewage mixture in the same process. This benefits the performance and reliability of the sewage treatment system as well as the environment.
HAMANN HL-CONT Plus MAIN SPECS
PLEASE NOTE : Measurements given here are based on the version with IMO/MED certification only. Measurements of versions with USCG certification may be different.This information is not to be used for design purposes. Subject to change without notice! The detailed technical specifications and all information on the scope of delivery are given in the product specifications of the respective plant model.
FROM SMALL TO LARGE : SEWAGE TREATMENT SOLUTIONS FOR ALL VESSEL TYPES AND SIZES
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HAMANN HL-CONT Plus SEWAGE TREATMENT TECHNOLOGY
PREPARATION: CREATING THE SEWAGE MIX
HAMANN HL-CONT Plus sewage treatment plants are designed to process both blackwater and greywater as a sewage mixture. This mixture is created in the sewage mixing tank from which it is pumped into the sewage treatment plant. Depending on the tank configuration on board, greywater and/or blackwater are transferred into the sewage mixing tank to create the sewage mixture. When the filling level in the sewage mixing tank reaches a predefined level, the feeding pump of the sewage treatment plant starts to operate and the treatment process is initiated.
MACERATION
The sewage mixture from the sewage mixing tank is first run through a macerator to chop up solid and fibrous components.
TSS/COD/BOD REDUCTION
By means of our Dissolved Air Flotation (DAF) technology, HAMANN HL-CONT Plus sewage treatment plants separate the suspended solids (TSS) and reduce the chemical (COD) and biological (BOD) oxygen demand. The sewage is enriched with air under a pressure in the saturator. After being discharged into the flotation tank through the pressure release valve, the excess air forms micro bubbles. A flocculant is added in order to let air bubbles and suspended particles form larger flakes. These flakes float upwards, creating a sludge foam on the surface and leaving the clear phase in the lower part of the flotation tank. The sludge foam spills into the sludge compartment and is subsequently fed into the ship‘s sludge tank.
DISINFECTION
The already largely purified sewage is finally exposed to UV radiation to degrade the DNA of bacteria and microorganisms, rendering them incapable of reproducing and infecting. After this finishing step, the treated sewage from the HAMANN HL-CONT Plus sewage treatment plant is safe to be discharged overboard (if permitted).
Read more : HAMANN HL-CONT Compact SEWAGE TREATMENT PLANTS



