Having a point-of-use (POE) water treatment strategy in place helps companies reduce their environmental footprint while bolstering their brand and ROI. Companies can do this by implementing wastewater recycling processes that lower disposal costs and increase tool life, wash water quality and reusability of working fluids.

Some of the most popular used water treatment equipment includes flow instruments, which measure the volume and rate at regular intervals; membrane systems, which separate contaminants from water; corrosion coupon racks, for monitoring chemical programs on a consistent basis; and pressure gauges.

Ultrafiltration (UF)

UF is an efficient way to reduce Chemical Oxygen Demand (COD) and suspended solids in water, and it can significantly reduce Total Dissolved Solids (TDS). The UF membrane is able to remove contaminants like iron, copper, zinc, chloride, chlorine taste and odor, benzene, crypto and bacteria.

The UF process requires less maintenance and energy than other process combinations, while offering better performance in many applications, including reverse-osmosis pretreatment, treatment of high Silt Density Index (SDI) groundwater, seawater pretreatment, arsenic removal and primary and secondary treatment of water for reuse. Fluence offers a wide variety of stand-alone stainless steel skid-mounted UF units for the used water treatment equipment for sale .

UF system design should include a DI water supply to flush the UF element on start-up to prevent paint shear that can tear the membrane. Also, the UF inlet valve should never be throttled – it needs to remain fully open. The UF permeate manifold should have a pressure gauge that limits the pressure to 1/3 Bar (5 psi). This is necessary to protect the fragile polymer from damage.

Reverse Water Treatment

Reverse uses membrane filtration technology to remove contaminants and impurities from water. It works by forcing water molecules through a semi-permeable membrane under pressure. The resulting clean water is known as permeate, while the remaining concentrate is discarded.

Because RO systems can be subject to degradation from chlorine, turbidity, iron and high levels of total dissolved solids, pretreatment is often needed to extend membrane life and improve system performance. Using a sediment pre-filter and carbon post filter helps to reduce chlorine, bad taste, foul odors and other unwanted contaminants from the feed water before it gets to the membrane.

During the RO process, contaminant build-up on the membrane surface can also lead to membrane fouling and scaling. This is why most commercial/industrial RO systems are equipped with automatic flushing devices and water softeners to prevent contamination of the membrane and help the system maintain optimal efficiency.

Chemical Bypass Feeders

Bypass feeders are used for dosing treatment chemicals into a secondary water loop in industrial cooling towers and other systems. They can also be found in heating and air conditioning systems as well as combustion engine water jackets. Known as pot feeders, shot or slug feeders depending on the application, geography or treatment specialist, they can be single or dual-addition feed systems.

Stainless steel chemical feed tanks offer reliable induction of corrosion inhibitors or anti-corrosion additives into closed piping systems. Designed with a chemical fill basin and a swing-bolt closure, these vessels come in 2-5 gallon capacities and can be outfitted with industry standard filter bags. Older models use a three lug style cap that should be replaced with newer threaded caps rated for higher pressures. Corrosion coupons are a useful way to monitor water treatment program effectiveness over time. These test samples are exposed to the alloy metals in a system and show how corrosion is being mitigated.