Impurity filtration during the regeneration process of waste lubricating oil
Shallow Medium Filter is a kind of high efficiency filter equipment in cutting down water turbidity, and purifying water. It uses silica sand asits filter medium. Under a certain pressure, the muddy water come through the granular or nongranular silica sand, which can efficiently hold back suspended solids, organisms, colloidal solids,micro-lives, chlorine, odour and heavy metal ions, etc.
It consists of several standard filter tank unit, with unique water distributor and water collector inside.automatic backwash valve can control all system’s backwash process.
Filtration process
The contaminated water enters the tank through the inlet manifold, transitioning to the 3-way valve and into the top inlet of each tank.
Particulate is trapped and retained within the media bed resulting in clean process water flowing out through the stainless steel wedge wire underdrain, to the outlet of each filter tank and to the outlet manifold for end use.
Backwash process
Backwash sequence is initiated by either elapsed time of the controller or pressure differential between the inlet and outlet manifolds. One tank at a time is backwashed while continuing to process water for use until the entire system is clean Once completed with the backwash, filtration continues until the next backwash event.
Product Advantages
Shallow media filter has flexible modules, which can combined under actual flow rate, on-site area. It is operated backwash automatically, with time control, differential pressure control. Each filter element start backwash one by one, while no need stop operation in backwash. With smooth water allocation. High efficiency in backwash, water saving, only 30% water consumption of traditional one.
With good anti-corrosion feature. With lost cost, but long lifetime.
Water quality:
Inlet water turbidity <80mg/L, outlet quality reach <20mg/L
Inlet water turbidity <20mg/L, outlet quality reach <5mg/L
With unique 48” ball filtering unit, and light weight for the whole system. The normal concrete base can used to place. Easy install, no need any boom equipment.
