Application: Feeding Cooling Tower
This is model MLF84-A from our MF-1000 Series.
- Multi-media filters
Water Challenges: Cooling towers are susceptible to scaling, corrosion, and fouling with the presence of suspended solids and sediments. This results in plant downtime and increases the expense of costly equipment replacements. As a result, multi-media filters are used to remove these sediments, particles, and suspended solids down to 20 micron range, which will largely protect the cooling towers from scaling. This process will greatly enhance the heat rejection performance of the towers, and in turn improve the overall operations of the industrial processes.
Applied Solution: Pure Aqua successfully supplied a multi cell filtration plant to the Ministry of Oil in Iraq. The plant consisted of multimedia filters, air blowers, and skid mounted backwash pumps. It also came complete with epoxy coated steel interconnecting piping all of which are controlled by an advanced PLC. The plant was selected from our MF-1000 Series. MLF-84A uses an 84” diameter tank to handle a total flow rate of 1500 GPM.
Since its startup, the plant has been running smoothly with minimal trouble-shooting. For satisfactory results, the plant used the following grades of media: Anthracite, Silica Sand, and Gravel. Anthracite is a coal that consists of a high volume of fixed carbon than any other known type of coal. It is recommended as a filter medium because of its cracked shape which allows some sediments to deeply penetrate into the bed. Anthracite is widely recognized for its lengthy filth filter runs, less head loss, and reduced backwash rates. It is tasked with removing lighter weight turbidity and the extra silica found in water. Silica Sand is a popular sand recognized globally. Silica Sand or silicon dioxide (SiO2) is utilized as a filtration bed for many particulates. It is naturally free from lime, chemically inert, and comes graded in various ranges for use in underbedding. Gravel is made up of unconsolidated rock fragments that encourages good flow and equal distribution in support beds. Gravel claims a very low amount of soluble impurities and maintains the quality of the treated water, especially in softeners. Three layers are encouraged in graded support beds. Multi-Cell Filters are commonly used to lower or eliminate turbidity and suspended solids from well water, surface water, or seawater, and also could be utilized for some applications of wastewater. Two or three layers of filtration media are required to eliminate turbidity and suspended solids to a smaller than 30 microns. These are referred to as multi-media filters, dual-media filters or multi layers filters. Filters can remove turbidity and suspended solids as small as 10 micron if they are designed and sized properly. Multi-layer filters are typically used for drinking water, irrigation water, surface water, and to pretreat RO Systems.
- Air blowers
- Skid mounted backwash pumps
- Epoxy coated steel interconnecting pipes
- Advanced PLC
- MF-1000 series
- MLF84-A tanks 84" diameter
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