Keep oceans clean with "Ocean Clean®"
Biological Sewage Treatment Plant approved to IMO-Res. MEPC 2 (VI ) Annex IV and Helsinki Convention.
The "KD-Oceanclean" series for gravity and vacuum toilet systems is designed to the latest state of aerated, "submerged fixed bed" biological treatment principe. It is a high efficient four chamber system.
The first chamber is the sewage collecting chamber. By aeration and mechanical grinding with a cutting pump the sewage is well mixed and prepared for homogenous overflow to the 2nd chamber.
The second chamber is the actual aerating and bio-process chamber. The grinded sewage mass has to pass trough the honey combs structure of the "submerged fixed bed" (1m³ has a surface of 150 m²) and gets simultaneously aerated from below via air membranes. They inject smallest air bubbles which infuse the sewage mass with oxygen from the air, which is produced by an air blower. By injection of oxygen the aerobe-process starts. Bacteria (which are found in any kind of sewage organic) start -stimulated by the oxygen injection- the organic degradation to carbon dioxide and water. The "submerged fixed bed" also called "bio reactor" becomes a layer of bio-mass, the so called "bio-lawn". The fully digested, odours, biological solids and dead cells fall down to the settling chamber and are led back by an automatic air ejector to the first chamber and come into the treatment process again. From time to time the sludge has to be discharged to the sea on areas, where it is allowed. From the second chamber, the treated water flows to the third chamber – the settling chamber. Suspended sludge settles down and is also led back by an air ejector to the first stage again. The cleaned water now flows to the fourth, the disinfection and discharge chamber. Disinfectant is injected from a container, via a dosing pump to sterilize the water. After a certain settling time the sterilized water is automatically discharged overboard. The "KD-Oceanclean" sewage treatment is made of acid resistant stainless steel, fully equipped with:
Macerating pump, air blower, disinfection pump, disinfectant, discharge pump, air lifter and solenoid valves for fully automatic operation.
Different from the most other sewage treatment plants the overflow from one chamber to the next, happens not via pipes (which may clog) but via weirs over the whole width of the chamber to guarantee a constant flow of the mass.
Product overview
Other sizes on request.