Sewage Treatment Plants
If you spend a lot of time on board due to your job and position, you will need a sewage treatment plant. STPs are essential in all environments, and they are called marine sanitation devices for vessel use.
A Marine Sanitation Device (MSD) is defined as any equipment for installation on a ship designed to receive, maintain, treat or discharge wastewater and any process for the treatment of this sewage.
We cannot discharge the sewage directly into the sea, some regulations need to be followed. Waste water produced from toilets, urinals, and WC scuppers is considered sea sewage. A sewage treatment plant on a ship consists of a screen filter, primary chamber, aeration chamber, demisters, blowers, settlement, and chlorination chamber. Together they treat and discharge waste to comply with Marpol regulation IV.
If you do not treat wastewater before discharging it into the sea, it will attract aerobic bacteria and decompose on its own. Moreover, it will lead to health epidemics if discharged near the port.
Types of STPs
A sewage treatment plant is designed and built to best meet the needs of the facility. Whether industry, ship, or ordinary sewage in urban cities. Many new plants, however, came with hybrid models. Sewage is treated with two methods on board: biological and chemical.
Chemical sewage treatment plant
Chemical sewage treatment plants include preliminary treatment, primary treatment, and secondary treatment chambers. The primary compartment is equipped with a coarse mesh as a filter to remove large solid particles from the log. In many designs, a flow meter is adjusted at the top of the primary chamber and filters the sewage inlet simultaneously.
The primary compartment is a large storage tank. This account keeps all the garbage out of your toilet, wash basin, and bathroom. The chamber is equipped with floating switches to control the level of sewage. In addition, they also act as sedimentation tanks, as solid particles settle.
The secondary chamber first chlorinates the wastewater and stores it for further chemical treatment. The process includes adding a 5% chlorine solution to kill bacteria within 30 minutes. In addition, the device uses other chemicals to wipe away the odor and the plate.
The treated water is then discharged to the sea, offshore facilities, or used in toilets for washing. In the end, the device de-chlorinates the treated water to reduce the chlorine amount before discharging it to the sea.
This is done using de-chlorination solutions such as ammonia, sulfur compounds, and activated carbon. Solid waste is stored in a sludge tank to be discharged to shore collection facilities.
Biological Sewage treatment plant
Biological plants use aerobic bacteria to decompose sewage more easily. The process of treating sewage in biological plants is known as aeration.
This plant consists of six main parts. Fine mesh filter, primary chamber, aeration chamber, dimmers, sitting chamber, and air blowers. A fine-mesh grid is installed at the entrance of the primary compartment to dump solid material and unwanted waste into the system. The mesh plate also helps break down solid particles of organic waste (sewage) to break down into smaller particles.
The primary chamber acts as a raw water collection and storage tank. These tanks are equipped with a surface sensor and a float switch to detect the level of sewage and prevent overflow. This is where the heaviest particles settle and the rest move towards the aeration chamber.
The aeration chamber is where the magic happens. It is a hybrid bioreactor that has air blows to create favorable conditions for the reproduction and growth of aerobic bacteria.
After the bacterial operation, the wastewater is transferred to the next chamber called the settling tank. Consists of a set of separating channels with sloping slides. Heavier sludge and other wastewater particles are separated from light water. Which is then discharged into the sea.
Dubai Marine Land store has taken all customer needs onboard into account and provided all devices needed while sailing. Sewage treatment plants of top-quality brands are available at the most reasonable price in Marine Land, the best store in Dubai UAE.
Marine wastewater treatment offshore
Sewage Treatment Plants (STPs) in Dubai Marine Company are one of the best available solutions for ship wastewater disposal. These treatment plants are offered at an affordable price and are the safest way to dispose of sewage on any ship or offshore platform. The use of these sanitary treatment plants prevents harmful pollution from entering the sea water and does not endanger the health of aquatic animals.
Wastewater treatment devices designed in Marine Dubai are built in accordance with the latest health standards in the world. So they are suitable for all ships, especially ships built from 1 January 2016 onwards. Marine sewage treatment systems from Dubai Marine Store are certified in accordance with IMO MEPC 227 (64) guidelines.
This marine wastewater treatment system is optimized to process and filter all black and gray wastewater flows from ships. Its mechanism is also done in two ways:
1. Conventional gravity collection
2. Vacuum feeding
In addition, the operation of the marine sewage treatment system in Dubai Marine is completely automatic and there is no need for human intervention in the process. This greatly reduces maintenance requirements. It also reduces long-term operating costs.
Finally, marine wastewater treatment systems are fully structured in terms of design and are suitable for all ships and marine platforms. The specifications of these wastewater treatment systems are completely new and designed based on customer needs.
Wastewater treatment in oil and gas industries
Oil and natural gas industries provide the necessary energy for the implementation of human and industrial projects by performing specific processes. Therefore, their smallest action has a direct impact on the sustainability of resources, environment and other industries and sectors. Today, one of the main goals of this industry is to reduce the use of water and use treated wastewater as a fluid required in these industries.
Oil and gas industry wastewater can be very diverse in each plant (oil extraction, cracking, use of oil and gas, etc.). Therefore, the use of wastewater treatment systems in oil and gas industries can be an optimal solution for wastewater extraction. The result of the operation of these systems is the supply of fluid used to move the system.