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A screw pump is a type of positive displacement pump typically using two or more screws that intermesh to pressurize fluids and move them through the system. The movement of the liquid is created with the screws rotating on an axis creating positive displacement suction to help push the fluids from the inlet to the outlet where it can be .
On Feb 22, 2019, an Oily water separator on a ship brings down the oil content of the water that...
The oil/water separator proposed is sized according to the American Petroleum Institutes Publication No. 421 formula for Oil Water Separator sizing. This separator will remove virtually all free and dispersed oil from the wastewater.
Oily Sludge Analysis
Oily sludge is a common byproduct in various industries, including petroleum refining, oil and gas exploration, and transportation. It is a mixture of oil, water, and solid particles that can be challenging to manage and dispose of. Oily sludge typically contains high concentrations of hydrocarbons, heavy metals, and other contaminants, making it a significant environmental concern.
What is Oily Sludge?
Oily sludge is a viscous and sticky substance that forms when oil and water mix with solid particles, such as sand, clay, and rust. It is commonly generated in oil refineries, drilling operations, and storage tanks. Oily sludge poses a threat to the environment due to its high toxicity and potential for groundwater contamination.
Centrifugal Separation of Sludge
Centrifugal separation is a widely used method for separating oily sludge into its components. This process utilizes centrifugal force to separate the oil, water, and solid particles present in the sludge. The centrifugal separator spins the sludge at high speeds, causing the heavier components to separate from the lighter ones. This results in the formation of distinct layers that can be easily removed and processed further.
Oil-Based Sludge
Oil-based sludge is a type of oily sludge that contains a high concentration of oil. It is commonly found in oil drilling operations, where drilling muds and cuttings mix with oil and water to form a thick sludge. Oil-based sludge poses a significant challenge for disposal due to its high oil content and potential for environmental harm.
Oil-Based Sludge Extraction
The extraction of oil-based sludge is a crucial step in the management of oily sludge. Various methods, such as thermal desorption, solvent extraction, and bioremediation, can be used to extract oil from the sludge. These methods aim to recover the oil for reuse or recycling while minimizing the environmental impact of the remaining sludge.
Oily Sludge in China
China is one of the largest producers of oily sludge due to its extensive oil and gas industry. The country faces significant challenges in managing and treating oily sludge due to the sheer volume generated and the environmental risks associated with improper disposal. The Chinese government has implemented strict regulations and guidelines to address the issue of oily sludge and promote sustainable practices in the industry.
Oily Sludge Treatment Methods
Several treatment methods are available for managing and treating oily sludge effectively. These methods include physical separation, chemical treatment, thermal desorption, bioremediation, and incineration. Each method has its advantages and limitations, depending on the composition of the oily sludge and the desired outcome. Proper treatment of oily sludge is essential to minimize environmental impact and ensure compliance with regulations.
Oil-Based Sludge Removal
Centrifugal separation, also known as mechanical separation technology, is a …
Earliest recordsThe screw pump is the oldest positive displacement pump. The first records of a water screw, or screw pump, date back to Hellenistic Egypt before . See more
Oily Sludge Separation Dimension|oily sludge analysis