What is IGF unit?

What is IGF unit?

IGF units are hydraulically-operated Induced Gas Flotation Units that provide efficient oil recovery from water streams with complete process containment. Oil recovery is achieved efficiently and economically, with operator and environmental safety ensured by the fully enclosed flotation process.

What is a flotation cell in oil and gas?

Each flotation cell contains a single Gas Eductor and a set of Gas Diffusers. The entrained gas bubbles have the effect of floating oil droplets to the surface of the water where they form an unstable foam/scum layer on top of the liquid surface.

What is a wemco?

WEMCO® DEPURATOR units use mechanically induced gas flotation (IGF) to remove oil and solids from produced water. This disperses small bubbles throughout the tank volume, and oil droplets and solids are carried to the surface in a rising gas froth, where they are recovered by skimming.

How do you treat produced water?

Considering the main contaminants present in produced water, treatment goals include deoiling, desalination, degassing, suspended solids removal, organic compounds removal, heavy metal and radionuclides removal, and disinfection.

What is a flotation cell?

Flotation Cells (Froth Flotation) were developed to separate and recover high value Sulphide ores from low grade ore bodies. The Flotation Cell is aerated to produce bubbles and agitated to keep the solids particles in suspension in the pulp.

What are flotation reagents?

The process involves the aeration of minerals in water in the presence of flotation reagents which facilitate the attachment of air bubbles to and levitation of select minerals. Once at the surface, the select minerals are supported by a froth layer until they are removed.

How is froth formed?

A foam forms when small bubbles of gas are trapped in a solid or liquid. How is a foam produced? A foam is produced by trapping millions of tiny gas bubbles in a liquid (whipped egg white) or a solid (marshmallow). Eventually the protein coating of the air pockets link together, making a foam.

What is API in water treatment?

An API oil–water separator is a device designed to separate gross amounts of oil and suspended solids from industrial wastewater produced at oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources.

How does a gravity oil water separator work?

A gravity plate separator contains a series of plates through which the contaminated water flows. The objective of the design is to allow oil droplets in the water to coalesce on the underside of the plate eventually forming larger oil droplets which floats off the plates and accumulates at the top of the chamber.

What are agagitated flotation cells?

Agitated flotation cells are widely used in the mineral processing industry for separating, recovering, and concentrating valuable particulate material from undesired gangue. Their performance is lowered, however, when part of the particulate system consists of fines, with particle diameters typically in the range from 30 to 100 μm.

What is the use of Mac flotation cell?

The MAC flotation cell is mainly used in the flotation section of waste paper deinking pulping, for removal of hydrophobic impurities such as filler, ash, ink particles, etc. It can increase pulp whiteness and meet the requirements of final paper appearance quality. Table 11.11 shows the features of MAC flotation cell.

What is an injector flotation cell?

It combines small, new, auto-clean, low-pressure injectors with a flotation cell. The function of injectors is to aerate the stock before it is pumped and sent tangentially to the top of the cell.

What is electelectroflotation ( electrolytic flotation)?

Electroflotation (electrolytic flotation) is an unconventional separation process owing its name to the bubbles generation method it uses, i.e., electrolysis of the aqueous medium. In the bottom of the microcell, the two horizontal electrodes were made from stainless steel, the upper one being perforated. The current density applied was 300 A m −2.