Water Static Mixers for Excellent Chemical Mixing and Contacting

In the water treatment industry, water quality standards and the greater re-use of waste water are creating the requirement for greater water processing, including the use of membranes and chemical treatment. Water static mixers can improve the efficiency of many water processing systems.

• About water static mixersrnA static mixer comprises a series of mixing elements which might be made of metal or any other suitable material. These mixing elements assist in efficient and homogenous mixing of water (or other materials) flowing through the pipe. The plates are fixed in a manner that ensures maximum mixing can take place over a short flow distance.

• The many uses of water static mixers:rnThese mixers have proven to be very useful in applications disinfection and pH control. Also they have extensive use in mixing gases such as ozone or carbon dioxide with water. As the water and gas are injected into the mixer, the mixing elements help the gas break into millions of tiny bubbles. This process intimate contacting and high reaction rates of water and gas in a short time.Water static mixers could also be used for mixing different water streams for dilution. In addition, such mixers are also designed to effectively carry out disinfection of water through chlorination or with the use of chemical additives like alum.

• Installation, maintenance and energy consumption:

These mixers operate by using the kinetic energy of the main flow stream. As compared to the mechanical mixers that contain a dynamic agitator system, static mixers require much less energy. There are several manufacturers who have the resources and capability to provide large scale static mixers. They are designed to be installed in water treatment channels of any cross section including open and closed ducts. They demonstrate a mixing performance that is better than 98%.Depending on the specific needs of industries, manufacturers could design low-pressure drop designs. These can either be supplied as complete assemblies or in component form for on-site assembly where access is difficult. Since they have no moving parts, the maintenance incurred on such mixers is negligible in the long run.

Komax water treatment mixers have in field testing mixing efficiency is 98%.Contact Komax for design specification and installation in conduits or tunnels on the channel mixers.

In processes where water is required to be mixed with gases, regular static mixers can be used. But for applications where the process stream contains solid or fibrous particles, there are chances of fouling or plugging. To address this, many manufacturers have specially developed static mixers without corners. Such mixers are best used in waste water treatment and sludge handling. Water static mixers could be manufactured in a variety of materials including but not limited to PVC, stainless steel, carbon steel and lined mixers. If these mixers are used to mix corrosive chemicals, they could be epoxy coated. They can also be made in various diameters and they have a service life that could well exceed 30 years. With all these advantages, water static mixers are a smart alternative to mechanical mixers.