Water
Water Industry Measurement & Control Solutions
The provision of adequate water supply is essential for the development of entire regions. Tek-Trol provides highly advanced, market-oriented, and cost-effective measuring instruments and customized and fully equipped solutions. Our technology and products improve the performance of plants.
PRETREATMENT AND INLET CONTROL
The screening process is a post treatment of pre-treatment. Water treatment is start at the screening process. In this process large
particles (such as fish, wood, paper, plastic) are removed from the raw water. A large metal screen is used for screening, which is
also called a bar-screen. It removes large particles which are trapped on the screen. The Bar Screen is made of stainless steel
and is located at the front of the water source intake. The inlet level in screening process is measure by Tek-Trol’s Submersible
Level, Ultrasonic Level, and Hydrostatic Pressure Level Transmitters. These screens are routinely raked or cleaned. The
screenings can be discharged into containers, wash compactors, screw conveyors, conveyor belts, etc. Tek-Trol’s Electromagnetic
Flow Meter and Differential Pressure Transmitter are measured inlet flow and pressure of water, respectively sealing at the sides
prevents solids from circumventing the filter. The level of containers is measured by Tek-Trol’s Submersible Level Transmitter.
- Flow Measurement
- Pressure Measurement
- Level Measurement
SAND FILTRATION
It is mostly used for backwater water disposal. The filter consists of a steel body with two low-pressure floors and a bottom plate.
Tek-Trol’s Differential Pressure Transmitter is used to control the backwash. This bottom plate is welded onto the body where wash
heads are mounted. The filter’s operation is calculated by the filtration rate, which is controlled at the effluent outlet. The inflow of
gravity is adjusted for the head of water in the supported reservoir always remains constant. This inflow of blackwash and water
is measure by Tek-Trol’s Electromagnetic Flow Meter. The filtration rate is controlled by flow, level, and pressure measurement
device. Tek-Trol’s Ultrasonic Level and Hydrostatic Pressure Level Transmitters are used to monitor the level of contamination of
the filter. Sand filtration is frequently used in the treatment of groundwater to remove dissolved iron.
- Flow Measurement
- Pressure Measurement
- Level Measurement
COAGULATION, FLOCCULATION AND SEDIMENTATION
Coagulation and Flocculation are used to remove color, turbidity, and other microorganisms from water. The floc is separated by
sedimentation or filtration in the water treatment process. The most used coagulants are aluminium sulphate and ferric sulphate.
Coagulants are measure at a rate determined by raw water quality near the inlet of a mixing tank or flocculator. Tek-Trol’s Guided
Wave Radar Level Transmitter is used to measure inlet level of mixing tank. The coagulant is immediately and fully dispersed on
treatment by adding it at a point of high disturbance. The water passes the flocculate into the sedimentation tank (also known as
a clarifier) to allow aggregation of the flocs, which settle out to form sludge. The water and inlet flow is measure by Tek-Trol’s
Electromagnetic Flow Meter. This sludge needs to be removed. Coagulation is reduced the time required to settle out suspended
solids. Coagulation effectively removes the fine particles which difficult to remove. It can also remove many protozoa, bacteria, and
viruses.
- Flow Measurement
- Pressure Measurement
- Level Measurement
GAS EXCHANGE AND FILTRATION
Sedimentation does not remove enough suspended particles from the water to make it crystal clear. The remaining non-settling
particles cause turbidity in the water and protect microbes from disinfection. Filtration removes these non-settled particles.
Clarified water enters the filters from the top. Tek-Trol’s Electromagnetic Flow Meter is used to measure water flow. Gravity pulls
the water down through the filters, where it collects in a drain system at the bottom of the unit. The air pressure in filtration process
is measure through Tek-Trol’s Differential Pressure Transmitter. There are various types of materials used in filters, i.e., sand and
gravel. Most of the process plants are using granular activated carbon for excellent mechanical filtration of particulate matter. Solid
Suspended particles are trapped by the filter media pore spaces, which removes harmful protozoa and natural color. Gas
exchange is a chemical process that removes bacteria and viruses from the water. Adsorption process removes unwanted tests,
odor, and micropollutants from the drinking water.
- Flow Measurement
- Pressure Measurement
ION EXCHANGE PROCESS
Ion Exchange is a reversible chemical reaction that removes dissolved ions from water and replaces them with similarly charged
ions. It is used to remove other dissolved ionic species. Tek-Trol’s Ultrasonic Level Transmitter is used for level measurement and
control. The Ion exchange process is commonly referred to as ‘water softening’ and is carried out to reduce calcium and
magnesium content. These ion particles are removed by aeration method. The aeration process is designed to achieve the
efficient mass transfer of oxygen into water and the removal of gases and volatile compounds through air stripping. The flow of
efficient mass is measure by Tek-Trol’s Coriolis Flow Meter. Oxygen transfer can usually be achieved by a simple cascade or
diffusion of air into water. Stripping of gases or volatile compounds require specialized plant which provides a high degree of mass
transfer. Tek-Trol’s Electromagnetic Flow Meter is used for water flow measurement in Ion Exchange process.
- Flow Measurement
- Level Measurement
MEMBRANE FILTRATION
The membrane filtration process includes micro-filtration, nano-filtration, reverse osmosis. The membrane is a thin and porous
sheet of material that can separate contaminants from water when a driving force is applied. This treatment is commonly used to
remove bacteria, other microorganisms, particulate material, and natural organic material. Membrane filtration is a highly efficient
water treatment process, which ensures quality in measurement. In this process, flow is used as the primary process parameter.
Tek-Trol’s Electromagnetic Flow Meter is used to measure flow to filters. Accurate quality monitoring eliminates scaling and fouling
processes at the inlet.
- Flow Measurement
STORAGE AND DISTRIBUTION
The stored water is distributed through underground pipelines in homes, commercial areas, and the markets. Tek-Trol’s Differential pressure Flow Meter are used for DP flow measurement and Electromagnetic Flow Meter is used for full pipes flow measurement. The distribution system consists of large water pumps at the treatment plant, overhead water storage tanks, large pipelines, smaller pipelines, fire hydrants, valves, and water meters in your front yard. Tek-Trol’s Differential Pressure Transmitter is used for pump discharge and network pressure measurement.
- Flow Measurement
- Pressure Measurement
- Level Measurement
