What is a Type 2 MSD?

Type II. Type II is also an on-board treatment device that uses biological or aerobic digestion based system. After treatment the waste can be discharged. Type II systems are more often seen on large commercial vessels than recreational boats.

How does a marine sewage treatment plant work?

The chlorine required is generated from ordinary seawater, as it is passed through an electro catalytic cell included with the system. Inside the treatment system powerful jets of water aerate, and combine the incoming wastewater with the chlorine solution to reduce the solids and disinfect the wastewater.

What is STP cost?

The path cost is the metric STP uses to calculate the shortest path to the elected root bridge. The path cost is based on the speed of the bridge port interface. You can confirm the path cost method being used on your Cisco switch with “show spanning-tree summary” command.

What is a Type 3 MSD?

Type III MSDs are holding tanks which do not treat sewage onboard the vessel. These devices are designed to store sewage effluent while preventing overboard discharge. What chemicals can I use in my marine sanitation device? Not all marine sanitation devices require the use of chemicals for day-to-day operation.

What must a Type 3 marine sanitation?

Type III is a device that prevents the overboard discharge of treated or untreated sewage or any waste derived from sewage. This type of device is typically a holding tank and may include other types of technology including incineration, recirculation, and composting.

What is STP in water treatment?

Sewage treatment is the process of removing contaminants from wastewater, primarily from household sewage. A by-product of sewage treatment is usually a semi-solid waste or slurry, called sewage sludge that has to undergo further treatment before being suitable for disposal or land application. …

What is the meaning of STP in water treatment?

sewage treatment plant
The term “sewage treatment plant” (STP) (or “sewage treatment works” in some countries) is nowadays often replaced with the term wastewater treatment plant (WWTP).

What is a type 2 Marine Sewage treatment device?

Tidal Wave aerobic biological sewage treatment systems are U.S. Coast Guard certified Type II Marine Sanitation Devices. They are also IMO Approved for worldwide compliance with Annex IV Regulation 3 (1) (a) (i) of Marpol 73/78, which provide regulations for the prevention of pollution by sewage from ships.

Are your sewage treatment systems US Coast Guard approved?

At Headhunter all of our sewage treatment systems are U.S. Coast Guard certified Type II Marine Sanitation Device and IMO approved for worldwide compliance with Annex IV Regulation 3 (1) (a) (i) of Marpol 73/78, which provides regulations for the prevention of pollution by sewage from ships.

How is the effluent treated in a sewage treatment plant?

In the last and final stage, the effluent water is treated in the chlorination unit and finally, during discharge overboard, the effluent is pumped into a dechlorination unit which removes any excess chlorine, again as per IMO requirements.

How many gallons of sewage does a sewage treatment system treat?

Standard models are available to treat 50 to 10,000 US gallons per day (0.2 to 38 cubic meters per day). These systems have no moving parts in the treatment chambers that contact sewage. The biological process is simple, reliable, and efficient.