SIDE STREAM

Clean cooling water towers are critical to ensuring an efficient plant. Using side stream filtration, a portion of the cooling water is continuously filtered and returned to the system to remove suspended solids from cooling tower systems. Side-stream filtration works on the principle that continuous particle removal will keep the system clean.
Nalco Pretreatment Solutions (PTS) manufactures the UltraSand Plus High Efficiency Filters (HEF) Side Stream Filtration Systems to remove suspended solids from open or closed recirculating cooling systems. The ability to remove extremely fine particles is the key to successful cooling water filtration. The unique design of the side stream filter provides 0.5 or 0.25 micron particle removal with minimal backwash water requirements. This particle filtration level is impossible to achieve with traditional multimedia depth filters or single media surface filters. This helps minimize downtime, maintenance & cleaning costs while reducing the possibility of under-deposit corrosion and much more.
Cooling systems require large volumes of air to promote evaporative cooling. The majority of particles in air are between 0.5-2.0 microns, as are the majority of particles found in cooling water. This particulate in water systems is a proven contributor to fouling of critical heat exchange equipment.
A typical analysis reveals that over 99% of particles in cooling water are below 15 microns in size and over 97% of particles in cooling tower water fall between 0.5 and 2.0 microns. Therefore, the ability to remove these extremely fine particles is the key to successful cooling water filtration. Conventional multimedia depth filters are generally effective at removing tower water particles between 10-15 microns in size. However, particles smaller than this are typically responsible for deposition and other problems.

• Flow rate of 12 gpm to 140 gpm per tank with multiple unit systems up to 800 gpm
• Industrial programmable logic controller (PLC) & HMI
• NEMA 4 control and motor starter with power disconnect
• Stainless steel tanks
• Steel face piping
• Centrifugal pump/TEFC motor
• Automatic backwash cycle initiated by a timer or a differential pressure switch
• Fully automatic, electric actuated valves

The Multigrade Sand Filter is a depth filter that makes use of coarse and fine media mixed together in a fixed proportion. This arrangement produces a filter bed with adequate pore dimensions for retaining both large and small suspended particles. Multigrade sand filter is highly recommended for the removal of suspended solids & un-dissolved impurities like dust particles & heavy metals etc. doing so it reduces turbidity. Pressure Sand Filter is an ideal solution for the systems with high sediment, silt, sand, and turbidity. Our Sand filters are well established in media filtration technology. The sand filters are specially designed to take care of the range of suspended impurities. Chemtronics filtration series multigrade sand filter include vessel complete with piping & valves sand media and gravel support bed.
The Multigrade Sand Filter is a depth filter that makes use of coarse and fine media mixed together in a fixed proportion. This arrangement produces a filter bed with adequate pore dimensions for retaining both large and small suspended particles. Multigrade sand filter is highly recommended for the removal of suspended solids & un-dissolved impurities like dust particles & heavy metals etc. doing so it reduces turbidity. Pressure Sand Filter is an ideal solution for the systems with high sediment, silt, sand, and turbidity. Our Sand filters are well established in media filtration technology. The sand filters are specially designed to take care of the range of suspended impurities. Chemtronics filtration series multigrade sand filter include vessel complete with piping & valves sand media and gravel support bed.