Types of Water Treatment Pump
- Centrifugal Pumps. As the name implies, these pumps make use of a centrifugal force to create sufficient velocity to displace the fluid through the system.
- Positive Displacement Pumps. These pumps make use of rollers, gears, impellers to displace fluid through the system. ...
- Submersible Water Pumps. As the name suggests, these pumps are entirely submerged in the liquid they are displacing. They are mostly used to drain sewage or slurry.
- High-Pressure Pumps. These pumps employ axial piston principle and have a compact and light design. They can either be variable delivery pumps or fixed displacement pumps.
- Water Pressure Booster Pumps. As the name indicates, these pumps are used in wastewater treatment plants to control and boost water pressure.
- Agitator Pumps. This type of pumps supplies kinetic energy along the pump intake.
- Circulation pumps. These pumps are used when you need to keep the slurry moving through the treatment plant.
- Progressive Cavity Pumps. Here, in these pumps, storage tanks or pipelines are used to transfer fluids and slurry from the suction area to the discharge area.
What are the steps of a water treatment plant?
What are the steps in water treatment plant?
- Screening. …
- Aeration. …
- Coagulation and flocculation. …
- Sedimentation. …
- Filtration. …
- Chlorination. …
- Supplementary treatment.
How to design a water treatment plant?
The construction of a $52-million water treatment plant west of Prince Albert, has taken another step towards becoming a reality. The third, and one of the more complex components of the overall project, is the design and engineering for the North ...
How is the water treated in a water treatment plant?
- Makeup water intake. As water circulates through a cooling tower system, a portion is lost to evaporation, bleed to drain, and leaks. ...
- Filtration. Upon intake, the stream is typically filtered through one or more filtration units for removal of sediment, turbidity, and organic material. ...
- Softening. ...
- Chemical addition. ...
- Side-stream filtration. ...
- Post-treatment. ...
What happens in a water treatment plant?
- Water treatment plant is a generic term. ...
- Let me illustrate a few major water treatment plants.
- Municipal water treatment plants. ...
- They usually contain large filtration and sedimentation tanks to precipitate suspended and colloidal particles to deodorise and supply a clear colourless water. ...
What type of pump is used for wastewater?
Centrifugal Pumps: Centrifugal pumps are most commonly used for pumping sewage, because these pumps can be easily installed in pits and sumps, and can easily transport the suspended matter present in the sewage.
What is pump in water treatment?
Pumps play many roles in water treatment. They move water from one place to another, and they provide added pressure that's sometimes needed to perform treatment functions. Pumps are used to inject water treatment chemicals, to supply compressed air, and to move treated water to its point of use.
Which pump is used to pump water?
Share: Water pumps are mechanical or electromechanical devices that are designed to move water through pipes or hoses by creating a pressure differential. The two most common types of pumps used for pumping water are centrifugal pumps and positive displacement pumps.
What type of pump is most often used by a public water system?
Centrifugal pumps are the most common type, since they are suitable for handling water and relatively easy to manufacture.
How many types of water pumps are there?
There are two major types of water pumps; centrifugal pumps and positive displacement pumps, each with its subcategories.
How do I choose a pump for my water treatment plant?
Among the considerations in selecting a pump are the maximum flow needed in gallons per minute (gpm), the head it needs to pump against, and the accuracy needed for flow control. The positive displacement pump is commonly used to feed chemicals into the water or to move heavy suspension, such as sludge.
What are the 2 types of pumps?
Pumps are classified into two types namely Dynamic pumps as well as Positive Displacement Pumps.Types of Pumps.Centrifugal Pumps.Vertical Centrifugal Pumps.Horizontal Centrifugal Pumps.Submersible Pumps.Fire Hydrant Systems.Diaphragm Pumps.Gear Pumps.More items...
What are the 3 types of centrifugal pumps?
Single-stage, Two-stage, or Multi-stage.
What type of pump is a centrifugal pump?
non-positive displacement pumpA centrifugal pump is categorised as a non-positive displacement pump. Traps a certain amount of liquid and forces it from the suction to the discharge port. Flow rate remains constant as change in pressure.
What are the four types of pumps?
Diaphragm pumps.Gear pumps.Peristaltic Pumps.Lobe pumps.Piston Pumps.
What is difference between centrifugal pump and reciprocating pump?
The main differences between Centrifugal Pump and Reciprocating Pump are the Centrifugal pump works low medium pressure head and Reciprocating Pump works high medium pressure head.
Why it is called centrifugal pump?
A centrifugal pump is a mechanical device designed to move a fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its circumference through the impeller's vane tips.
How do pumps help water treatment?
They help in collecting the wastewater from different parts of the plant and transfer it to the treatment plant. Once the water is purified, pumps then assist in moving the treated water to places where it is required or to a storage tank. Based on the technique used for water treatment as well as the force required, ...
What is a submersible water pump?
Submersible Water Pumps. As the name suggests, these pumps are entirely submerged in the liquid they are displacing. They are mostly used to drain sewage or slurry. The pump is placed under the wastewater or sewage levels, and its operation is controlled with the help of level sensors.
What is a positive displacement pump?
Positive Displacement Pumps. These pumps make use of rollers, gears, impellers to displace fluid through the system. They are highly durable and are able to pump both liquids as well as slurries with lots of solid particles. The most popular type of positive displacement pumps are the diaphragm pumps.
What is centrifugal pump?
Centrifugal Pumps. As the name implies, these pumps make use of a centrifugal force to create sufficient velocity to displace the fluid through the system. Centrifugal pumps come with rotating impellers. These are parts that resemble a mechanical fan. It has a small intake and a large outlet.
What are the three types of wastewater treatment plants?
When it comes to treatment plants, there are three different treatment processes used like – primary, secondary and tertiary. The quality of treated water depends on the ...
Why is wastewater treatment important?
Wastewater treatment not only gives you the satisfaction of doing your bit to the Earth’s most precious resource but also could reduce your overall operational costs significantly.
What is the chemical feed pump?
Chemical feed pump (Images courtesy of Hydraulic Institute) The effectiveness of disinfection depends on the state of the water or effluent being treated, the type of disinfection being used, the disinfectant dosage (concentration and time) and other environmental variables.
What are the characteristics of wastewater treatment plants?
Some pumping characteristics that are important for different processes: ability to handle high to low and variable viscosity. ability to pump solids. sealless pumping.
What is metering pump?
In both water and wastewater treatment plants, metering pumps are recommended for the disinfection process. Disinfection is normally one of the final processes before discharge to the distribution system or release of the effluent. This final step ensures that any disease causing or pathogenic microorganisms are substantially reduced and ...
What is the purpose of water treatment?
The purpose of a water treatment system is to provide quality water for safe consumption (potable) or for safe release to the environment (effluent). Water treatment to produce potable water from surface water typically consists of physical ...
What are the methods of disinfection?
Common methods of disinfection include application of ozone, chlorine, ultraviolet (UV) light or sodium hypochlorite. Additionally, final processes can include reaeration and dechlorination in wastewater treatment plants. Materials selection is made to ensure compatibility with the pumped liquid for corrosion resistance.
What is the pump needed for wastewater treatment?
Any pump that you use for a wastewater treatment plant must be strong enough to withstand abrasion and corrosion caused by the slurry and wastewater. All industrial pumps used in metal processing plants, food and beverage industries, chemical industries, paper manufacturing units, and others require durable and heavy-duty pumps.
What are the different types of wastewater treatment pumps?
Wastewater treatment pumps can be classified into the following three types: 1. Positive Displacement Pumps. Positive displacement pumps force out a specific volume of fluid into a discharge pipe. It is available in a variety of configurations like:
What is a submersible pump?
Submersible Pumps. Submersible pumps are placed directly in the wastewater or slurry. It offers added pumping power to remove fluids from a specific area. Generally, submersible pumps are used in the draining of fluids in wastewater plants.
How do gear pumps displace wastewater?
As the name implies, gear pumps displace wastewater by turning gears inside the pump. The action of the gears creates a suction that takes in wastewater from one side and moves it to the other side.
Why are centrifugal pumps used in wastewater treatment plants?
It has a small intake valve and a large outlet. Some of the reasons why centrifugal pumps are popular for wastewater treatment plants are: Low maintenance. Simple design. Moving parts that are durable and long-lasting. Effective operation. Pressure is self-limited.
How do positive displacement pumps work?
These pumps offer superior control over the flow of water. It works by pushing wastewater in a controlled manner and in a single direction. When positive displacement pumps are adequately maintained and serviced regularly, they last for years to come without any downtime. 2.
What is the purpose of a diaphragm pump?
The basic operating principle is that – water flows when the diaphragm is open and stops when the diaphragm is closed.
Description Phrase
This is a current guide on the various types of wastewater treatment plant pumps and their proper operation.
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Water Treatment Plant Pumps: Guidelines for Selection, Application and Operation is intended to assist in understanding the general layout, components, and operation of a typical water treatment plant, and provide the guidance necessary to select pump types and define pump materials to perform effectively, efficiently, and reliably in the various plant operations..
What is a Water Pump?
A water pump is a device used to increase water pressure to transfer it from one position to another. Modern water pumps are used worldwide to supply water for agricultural, municipal, industrial, and residential applications. Water pumps are also utilized to transfer wastewater in sewage processing plants.
Reciprocating Positive-Displacement Pumps
Reciprocating pumps transfer the fluid using one or more oscillating plungers, pistons, or membranes (diaphragms), while valves limit fluid passage to the desired direction. The pump must first pull the plunger in an outward action to decrease pressure in the chamber for suction to be occurred.
Centrifugal Pumps
A common centrifugal pump setup is composed of one or more impellers connected to a rotary pump shaft. This arrangement produces the energy needed to conduct fluid in the pump operation and the associated piping.
What is a gear pump?
A gear pump is a variety of positive displacement pumps. It moves a fluid by frequently enclosing a fixed amount using interlocking teeth or gears, transferring it mechanically by a cyclic pumping action. As a result, it gives a stable pulse-free flow proportional to the rotational speed of the gears.
Peristaltic Pump
A Peristaltic pump, referred to as a hose or tube pump, works by positive displacement’s principles. Fluid is supplied in the tubing by rollers that rotate, squeezing a soft tube against the pump housing.
Diaphragm Pump
A diaphragm pump (also called a Membrane pump) is a positive displacement pump that employs a combination of the reciprocating action of a thermoplastic, rubber, or Teflon diaphragm and proper valves on both sides of the diaphragm (butterfly valves, check valve, flap valves, or any other form of shutoff valves) to pump a liquid.
Submersible Pump
A submersible pump (electric submersible pump (ESP) or sub pump) is a machine that has a tightly sealed motor close-coupled to the pump assembly. The whole body is submerged in the liquid to be pumped.
What are the two types of pumps used in agriculture?
Types of Pumps in Agriculture. Pumps are classified into two major types – Positive Displacement Pumps and Dynamic Pumps. 1. Positive Displacement Pumps. Displacement pump. As the names suggest, a positive displacement pump displaces or pushes the water from one place to another by virtue of mechanical energy.
How do water pumps work?
Pumps carry the water from a region of low-pressure to high-pressure by increasing the pressure of the fluid and giving it the strength to flow against the gravitational force.
What is the most common type of irrigation pump?
Centrifugal pumps. These pumps are the most commonly used type for irrigation practices. A centrifugal pump moves the fluid through the pump by virtue of rotatory motion. An impeller is the main device that rotates and draws the fluid inside the pump. Centrifuge pump is always immersed in water, and its rotation transfers the kinetic energy to ...
Why are irrigation pumps important?
They are of great importance in agriculture as they are the prime devices to provide irrigation to the crops. There are different types of pumps available for irrigation. Some of them are designed specially to suit a particular need for irrigation in agriculture.
What is a turbine pump?
They can be used with wells, lakes, or ponds. The most common type of turbine pump is a vertical turbine pump.
What is a submersible pump?
Submersible pumps can be single staged pumps or multi-staged pumps (a combination of many single staged pumps). They are usually operated by electrical energy. They can be operated by solar energy, wind energy, hydro energy, etc. They can be used when the water level of the water source is shallow.
What is a high velocity pump?
2. Dynamic Pumps. As the name suggests, a dynamic pump is a high-velocity pump. They increase the kinetic energy of the flow by mechanical motions, which then leads to the flow into the discharge pipe. Centrifugal pumps are a major sub-category of dynamic pumps.
