Discarding sewage produced onboard on a ship is one of the few tasks on a ship which should be taken utmost care of if one wants to same him and his shipping company from heavy fine. The sewage generated on the ship cannot be stored on the ship for a very long time and it for this reason it has to be discharged into the sea.
Lifeboat is an integral part of marine safety. It is a primary device for the evacuation of passengers to a safer place. SHM Shipcare is the foremost Indian company providing maritime safety solutions.
With 25 years of experience in lifeboat servicing, we strive to enable freedom at sea.
We ensure this by rendering quality, serviceable survival systems for your vessel.
We provide both a solution and a service.
For more information visit www.shmgroup.com and call us at 18001020464
Oil and Liquefied Gas Tanker Operations is a comprehensive separately bookable course designed to provide participants with a technical perspective of shipping operations. The 4 day course will cover technical designs and features of tankers, operational execution based on charterparty terms, port, cargo and ballasting operations, tank cleaning, safety assessment and procedures, all broken down and discussed in detail. In addition, tanker owners, managers, operators and charterers will learn how to best minimize any operational claims and disputes due to accidents either out at sea or berthing at ports.
Presentation contains links to official documents such as SOLAS and IMO MSC circulars and describes inspection procedure for Fire Hoses and Hydrants on board marine vessel.
Basic description of a sewage treatment plant on shipLee Adrian
Discharging of sewage in sea or territorial waters in banned as it can drastically affect the marine life. In case the sewage is to be discharged, first it has to be treated with the help of a sewage treatment plant. STP is now mandatory on every ship, according to International legislature.
Lifeboat is an integral part of marine safety. It is a primary device for the evacuation of passengers to a safer place. SHM Shipcare is the foremost Indian company providing maritime safety solutions.
With 25 years of experience in lifeboat servicing, we strive to enable freedom at sea.
We ensure this by rendering quality, serviceable survival systems for your vessel.
We provide both a solution and a service.
For more information visit www.shmgroup.com and call us at 18001020464
Oil and Liquefied Gas Tanker Operations is a comprehensive separately bookable course designed to provide participants with a technical perspective of shipping operations. The 4 day course will cover technical designs and features of tankers, operational execution based on charterparty terms, port, cargo and ballasting operations, tank cleaning, safety assessment and procedures, all broken down and discussed in detail. In addition, tanker owners, managers, operators and charterers will learn how to best minimize any operational claims and disputes due to accidents either out at sea or berthing at ports.
Presentation contains links to official documents such as SOLAS and IMO MSC circulars and describes inspection procedure for Fire Hoses and Hydrants on board marine vessel.
Basic description of a sewage treatment plant on shipLee Adrian
Discharging of sewage in sea or territorial waters in banned as it can drastically affect the marine life. In case the sewage is to be discharged, first it has to be treated with the help of a sewage treatment plant. STP is now mandatory on every ship, according to International legislature.
SciencoFAST Marine Sanitation & Water Treatment Project Portfolio Book | www....BioMicrobics, Inc.
General Overview of Scienco/FAST, Products, and examples of marine wastewater treatment system installations. http://www.sciencofast.com
Our Solution… Installed on some of the ‘greenest’ ships in the world!
Marine Sewage Devises are required on all vessels with facilities. Even with marine vessels' constant movement, small space requirements, variable ship personnel, and flow surges, the MarineFast’s robust treatment process delivers consistent performance to make innovative patented FAST system technologically advanced and extraordinarily reliable.
MarineFAST is inherently self-regulating, with no adjustments required. The performance of MarineFAST is not dependent on the skill of the operator; Certified, reliable, and proven process in available Crew Sizes of Up to 1 – 39 People, 11 – 80 People, 33 – 900+ People:
* Self-starting, self-regulating operation
* Long service life
* Worldwide technical support
* Superior protection against corrosion
* Easy to upgrade older units
1. Tug Boat 2.Harbor Tug 3. Offshore Platforms 4. Tugs 5. Pilot Boats 6. Offshore Supply Vessels 7. Drill Ships 8. Crane Barges 9. Diving Support Vessels 10. Fire Boats 11. Semi-Submersibles 12. Shop and Office Barges 13. Tankers 14. Container Ships 15. Bulk Carriers 16. Survey Ships 17. Research Vessels 18. Cruise Ships 19. School Ships 20. Float Homes etc.
Flushing Medium
FAST can handle any combination of seawater, freshwater, blackwater, graywater, ground food waste, conventional toilets and vacuum toilets without adjustment.
Performance Based on Experience and Knowhow
The advantages and reliability of FAST sewage treatment systems are inherent in the FAST process. It is a winner where consistently good performance is required, where loading and operating conditions vary and where trained operators are not available. These applications include but are not limited to marine and offshore. The advantages and reliability of the FAST process also makes it ideal for many land applications (www.biomicrobics.com).
Use of biotechnology in the treatment of municipal wastes and hazardousindust...Sijo A
Industrial waste water is a type of waste water produced by industrial activity, such as that of factories, mills and mines.
It is characterised by its large volume, high temperature, high concentration of biodegradable organic matter and suspended solids, high alkanity or acidity and by variations of flow.
The treatment of wastes by micro-organisms is called biological waste treatment.
This content is benificial for the research and development purposes. Students and research scholars who they are eager to search for the conventional waste water treatment methods are look here.
Industrial waste water purification procedurepasindulaksara1
The effluent Treatment Plant (ETP) is a method that is used to treat the emanation coming out from many areas of the plant. It includes biological, physical, and chemical processes. It aims to releasing safe water into the environment to prevent it from getting cop0ntaminated. These plants are have been very useful in the process of providing clean water to the environment and have conserved water in a number of ways.
Water :the universal need. As we all know water is most essential component to mankind yet its quality is in hazardous state and quantity is declining. This slide contains crucial information about water purification systems like what happens to water before we get it I'm our home?!
this is a general model on a waste water purification plant further it can be classified on the its sub branches as per required according to the water type and water treatment type...
A presentation on Potential Technology for Water Treatment by Romeo Afrin Upama, Department of Geography & Environmental Studies, University of Chittagong. The presentation is on the available and potential water treatment technologies.
Water is a precious resource and without it life is not possible on earth
Water is getting polluted day by day due to excessive and careless use so the percent of available drinking water is reducing
There are many ways which causes water pollution and the effects of it are very harmful for all living and non-living objects
In general, sewage contains dissolved solids, suspended solids, nutrients (N, P), sulphate, chloride and heavy metals (Fe, Cu, Co, Zn, Pb, Ni), bacteria and viruses.
This 0.1% contains organic matter, microorganisms and inorganic compounds.
Of the solids present in sewage, 70% are organic and 30% are inorganic in nature.
The organic fraction contains proteins (60%), carbohydrates (20%) and fats (10%).
The inorganic fraction contains grit, salts and metals.
The Sewage Treatment Process essentially includes three stages. What are the three stages of sewage treatment and How does each stage work?
The three stages can be divided into primary, secondary, and Tertiary. In each step, water is purified to the next level to access clean water for humans and the environment.
1.This stage essentially includes the process of sedimentation. The water is held in the large sedimentary or rainwater tanks where the settleable solids are removed. Since the sedimentation tanks work on the principle of gravity, the solids settle at the bottom, and the lighter solids float in the tanks. Anyhow, let's move forward to stage 2 of secondary treatment. After the sludge settles at the bottom, the water is then released for its secondary treatment.
2.In this process, waste is broken down by aerobic bacteria and incorporated into the wastewater system.
3. Tertiary treatment is also known as polishing and disinfecting the water with the highest standards. This stage is critical to producing the water to a particular specification such as technical water, mineral water etc. It is also used to treat the water in public systems.
1.the incoming wastewater passes through screening equipment where objects such as rags, wood fragments, plastics, and grease are removed. The material removed is washed and pressed and disposed of in a landfill. The screened wastewater is then pumped to the next step: grit removal.
2. In this step, heavy but fine material such as sand and gravel is removed from the wastewater. This material is also disposed of in a landfill.
3. The material, which will settle, but at a slower rate than step two, is taken out using large circular tanks called clarifiers. The settled material, called primary sludge, is pumped off the bottom and the wastewater exits the tank from the top. Floating debris such as grease is skimmed off the top and sent with the settled material to digesters.
4. In this step, the wastewater receives most of its treatment. Through biological degradation, the pollutants are consumed by microorganisms and transformed into cell tissue, water, and nitrogen.
5. Large circular tanks called secondary clarifiers
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
1. Sewage Treatment Plant on a Ship Explained
Discarding sewage produced onboard on a ship is one of the few tasks on a ship which should be taken utmost
care of if one wants to same him and his shipping company from heavy fine. The sewage generated on the ship
cannot be stored on the ship for a very long time and it for this reason it has to be discharged into the sea.
Though sewage can be discharged into the sea, we cannot discharge it directly overboard as there are some
regulations regarding discharging of sewage that needs to be followed. Sewage on sea is generally the waste
produced from toilets, urinals and WC scuppers. The rules say that the sewage can be discharged into the sea
water only after it is treated and the distance of the ship is 4 nautical miles from the nearest land.
But if the sewage is not treated this can be discharged 12 nautical miles away from the nearest land. Also the
discharged sewage should not produce any visible floating solids nor should it cause any discoloration of
surrounding water.
Generally, ships prefer treating sewage before discharging to save themselves from any type of embarrassment.
There are different methods of treating sewage available in the market, but the most common of them is the
biological type for it occupies less space for holding tank, unlike those of the other methods. Moreover, the
discharge generated from this plant is eco-friendly. It is to not that each sewage treatment system installed
onboard has to be certified by classification society and should perform as per their requirement and
regulations.
Working of a Biological Sewage Plant
The basic principle of the working of a biological treatment plant is decomposition of the raw sewage. This
process is done by aerating the sewage chamber with fresh air. The aerobic bacteria survive on this fresh air and
decompose the raw sewage which can be disposed off in the sea. Air is a very important criterion in the
functioning of the biological sewage plant because if air is not present, it will lead to growth of anaerobic
bacteria, which produces toxic gases that are hazardous to health.Also, after decomposition of the sewage with
anaerobic bacteria, a dark black liquid causes discoloration of water which is not accepted for discharging. Thus
in a biological sewage treatment plant the main aim is to maintain the flow of fresh air.
2. Division of Processes
The biological sewage plant is divides into three chambers:
1) Aeration chamber
This chamber is fed with raw sewage which has been grinded to form small particles. The advantage of
breaking sewage in small particles is that it increases the area and high number of bacteria can attack
simultaneously to decompose the sewage. The sewage is decomposed into carbon dioxide, water and inorganic
sewage. The air is forced through diffuser into the air chamber. The pressure of air flow also plays an important
role in decomposition of the sewage. If pressure is kept high then the mixture of air and sewage will not take
place properly and it will escape without doing any work required for decomposition. It is for this reason;
controlled pressure is important inside the sewage treatment plant as this will help in proper mixing and
decomposition by the agitation caused by air bubbles. Generally the pressure is kept around 0.3-0.4 bars.
3. 2) Settling tank
The mixture of liquid and sludge is passed to settling tank from the aeration chamber. In the settling tank the
sludge settles at the bottom and clear liquid on the top. The sludge present at the bottom is not allowed to be
kept inside the settling tank as this will lead to growth of anaerobic bacteria and foul gases will be produced.The
sludge formed is recycled with the incoming sludge where it will mixes with the later and assist in the
breakdown of sewage.
3) Chlorination and Collection
In this chamber the clear liquid produced from the settling tank is over flown and the liquid is disinfected with
the help of chlorine. This is done because of the presence of the e-coli bacteria present in the liquid. To reduce
these bacteria to acceptable level chlorination is done. Moreover, to reduce the e-coli, the treated liquid is kept
for a period of at least 60 minutes. In some plants disinfection is also done with the help of ultra violet radiation.
The collected liquid is discharged to overboard or settling tank depending on the geological position of the ship.
If the ship is in restricted or near coastline then the sewage will be discharged into the holding tank; otherwise,
the sewage is discharged directly into the sea when high level is reached and is disposed automatically until low
level switch activates.
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