The NanoWater Lamella Clarifier is designed to provide low cost, efficient solids removal from a wide range of waste and process liquids. The inclined plate and the tube Settler Lamella clarifier design allows the total gravity settling area to be as much as ten times more than the actual floor space occupied by the clarifier.
The Flash Mix and Flocculation Tanks (optional) allow for the addition of chemicals and polymers that will aid the settling process adjusting pH to precipitate dissolved solids and/or enhancing the agglomeration of suspended particles into heavier, more settle-able floc. The liquid is fed from these tanks into the clarifier through the inlet chamber, which directs flow into the separation section.
The liquid then enters the lower area of the laminar plates through side slots which distribute it across the entire width of the plates. Particulate settles onto the face of the plates and slides down to the clarifier bottom. The clarified liquid exits the plate sections through weirs at the top of the unit which are designed to develop and control adequate pressure drop, maintaining laminar flow through the plates. The clarified liquid then flows into the effluent chamber and out of the clarifier.
Settled solids collect at the bottom of the pyramid sludge hopper and are removed from the clarifier. A Sludge Thickener (optional) with rake mechanism may be utilized in place of the pyramid hopper when applicable.
MATERIAL OF CONSTRUCTION
A wide range of construction materials and coatings are available to meet specific needs:
Mild steel
Stainless steel
FRP
Plastics — PVC, Polypropylene, and many others
PROCESS CHARACTERSITICS
Lamella clarifiers can handle a maximum feed water concentration of 10000 mg/L of grease and 3000 mg/L of solids. Expected separation efficiencies for a typical unit are:
90-99% removal of free oils and greases under standard operation conditions.
20-40% removal of emulsifiedoils and greases with no chemical amendment.
50-99% removal with the addition of chemical agent(s).
Treated water has a turbidityof around 1-2 NTU.
Nanowater designs and manufacture three types of lamella sedimentation equipment , according to the different filtration medium used inside a lamella clarifier, the lamella clarifier can be divided into Lamella Tube Clarifier (also called Tube Settler) and Lamella Plate Clarifier (also called Plate Settler) and U-Tube plate design ,these types of equipment use shallow sedimentation theory to achieve the desired results. Use of Tube Settlers, or Plate Settlers can allow for greater loading rates of the system by expanding the surface area for sedimentation. This allows for greater loading rates, and results in a large reduction in the basin size needed to achieve the same results. It is generally accepted a reduction in settling surface area of 80+ percent can be achieved.