Monobloc lamella clarifier DLM-XXL

Monobloc lamella clarifier large size DLM-XXL – Available for rent with purchase option!

Smoothed self-cleaning lamellae of 3 mm thickness, ensuring a high stability of the whole block in the long term.

  • Projected area: 86 m² (129 m² for drinking water)
  • Mirror surface : 8,6
  • Storage of industrial water: 3,2 m3
  • Sludge storage: 2,49 m3
  • Sludge hopper inclination: 45°
  • Settling volume: 15,31 m3
  • Twin weir single channel collection
  • Lamellae inclination: 60°
  • Lamellae spacing: 45 mm (30 mm for drinking water)
SKU: Lamella-clarifier-DLM-XXL Category:

Although this lamella clarifier is a basic unit, it is an equipment that offers many options! Therefore, it is necessary to fill out the design form opposite so that we can provide you with a precise estimate and a 3D plan.
<< Click to view the lamella clarifier design form

With its compact design and a projected surface area of 86 m² and a large volume of 21 m3, the DLM-XXL lamella clarifier is perfect for indoor installation. This reduces some of the problems such as:

    • seaweed growth,
    • clogging from external debris accumulation such as dead leaves
    • odor control,

Operating in an enclosed space also limits heat loss from the water, an important parameter in the efficiency of biological treatment.

You will find below some of the specific characteristics of lamella clarifiers and the benefits of the DLM-XXL:

Benefit of lamella technology

  • Ground surface area <90%: Lamella clarifier technology allows the water to be treated on a surface area 10 times smaller than a traditional clarifier.
  • No moving parts:All lamella clarifiers are fixed. Without moving parts, they require little maintenance and servicing.
  • Hydraulic overloads: Lamella clarifier is a faster clarification process. A lamella clarifier can operate with peak flow rates 2 to 4 times higher than traditional clarifiers.
  • No chemicals:Thanks to their simple design, lamella clarifiers work without chemicals. Therefore, they are able to act as a pre-treatment for delicate membrane processes for example.
  • Flocculation coagulation: Performance can be improved through the action of flocculants and coagulants. These chemicals allow to bind the particles together. As they are heavier, they settle better, which increases the purity of the treated water, even improving the removal of phosphorus when the coagulation is FeCl3.

Specific advantages of the lamella clarifier 1h2o3

  • Smoothed anti-clogging lamellaes : All our clarifiers are equipped with smoothed PVC lamellas, allowing a better sedimentation and offering in addition a self-cleaning effect
  • Thickness: All our clarifiers are equipped with 3 mm thick lamella. This thickness makes the structure much more resistant to clogging due to lack of maintenance and prevents the risk of collapse.
  • Storage of industrial water: The bottom of the lamella clarifier is designed to store the treated water. It is useful when you have a sifter to feed at the head of the plant for example.
  • Regulation-compliant inclination: The 60° inclination satisfies most regulations/recommendations for lamella clarifier.
  • Corrosion resistant: The materials used in every Monobloc lamella clarifier are corrosion resistant, which significantly improves the life span of the equipment.
  • Separate collection of floating sludge our twin weir channel, the sludge can be collected separately:
    • – decanted water: treated water
    • – floating sludge : the floating fraction on the surface of lamella clarifiers which, if not collected separately, reduces efficiency in TSS, COD, BOD5.
  • High quality and recyclable materials: Unlike fiberglass, all materials used in our equipment are 100% recyclable. We hope that you will return the equipment at the end of its life!
  • Drinking water conformity:Some countries require specific materials for drinking water applications (NSF-61, ACS, DVGW, SVGW..). We can adapt the materials of our lamella clarifiers to meet your specific regulations.
  • Quick drain: It is required to clean the lamellae of the lamella clarifier. You can lower the fluid level with the sludge drain. And to save time, a “quick drain” pipe can be added under the Lamellae.
  • Heat insulation: Tall our clarifiers are surrounded by a honeycomb envelope > 50mm, which allows to keep the heat while providing a great structural resistance.
  • Removable lamellae blocks: Some industries (IAA, aquaculture) have to clean the structures periodically, and therefore have access to the bottom of the structure. All 1h2o3 lamella clarifiers have removable lamellae blocks. This way, the clarifier is fully reachable and it is even more convenient to clean the lamellaes!
  • Reinforced clarifier bottom:Some sandy waters have a higher abrasion potential, and it is better to reinforce the clarifier bottom in these cases.

Whether it is for a new installation or to complete an existing treatment:

    • Wastewater treatment
    • Industrial water treatment
    • Drinking water
    • Rainwater and runoff
    • Backwash of sand filters
    • Metals finishing
    • Mining
    • Groundwater
    • River pre-sedimentation


    • Flat 3 mm thick PVC. For potable water applications, we use materials that meet the regulations you specify (PE 100).
    • Supports: 316L stainless steel

Weir channel:

    • Polyethylene
    • Connections: PVC/ PP


    • Internal and sole: 20 mm polypropylene
    • External: polypropylene foam >50mm
    • Hood (for DLME and DLHE): polypropylene honeycomb >50mm

Lamellae block:

    • Lamellae thickness: 3 mm
    • Horizontal lamellae spacing: 45 mm
    • Inclination: 60°.
    • Spacing between lamellae at 60°: 39 mm.
    • Lamellae surface area: 1 m².

Twin weir channel with siphonic partition:

    • Treated effluent weir channel collection.
    • Floating weir channel collection.

Inlets and outlets

    • Water inlet d160: either on the left, on the front (as shown in the picture), on the right.
    • Fresh water outlet d110: optionally left (as shown), front, right
    • Floating sludge outlet d110: optionally left (as shown), front, right

Sludge disposal

    • Gravity at the bottom of the structure, to which a pump or a solenoid valve can be connected (out of scope 1h2o3)
    • By pumping, in high part: the clarifier will be delivered with a submerged pump connected in high part of the clarifier
    • Both: pumping and draining

Floating sludge (which must be removed periodically):

    • Attachment of a solenoid valve for the removal of floating sludge
      • – On the clarifier frame for DLM versions
      • – inside a PP housing for DLME versions

Automatic lamellae cleaning

    • Fixing the air ramp under the lamellae, which is connected to a source of compressed air, to carry out periodic cleaning

Industrial water storage

    • Installation of the inclined bottom of the clarifier to constitute a storage of industrial water, outputs and connection according to your needs.

Strengthening the bottom of the clarifier

    • With even more resistant materials for very sandy waters

Inlets and outlets

    • Drainage d63: optionally left, front (as shown below), right
    • High outlet of the sludge pumped out d63: optionally on the left, in front (as shown), on the right
    • All inlet can be equipped with :
      • Connection up to d63
      • of adhesive/flange: diameter at choice

Inlet and outlet with PP collars and flanges (instead of a single exit)

    • Water flow d160: recommended for pumped water supply. DN adaptation according to your needs.
    • Fresh water outlet d110
    • Floating sludge outlet d110

According to the options selected, you can also go for collars and flanges on these inlets/outlets:

    • Drain d63
    • High outlet of pumped sludge d63: recommended for pump option
    • Industrial water storage inlet/outlet:
    • Quick draining to the bottom of the lamellae


All over the world, 1h2o3 packages have dimensions compatible with transport in HC containers.


    • 10 to 14 weeks.

Once the order has been placed, the above-mentioned period runs (excluding weeks 31 to 34 and 51 to 52) from the date of receipt of payment and validation of the project plan (including all the options requested in the case of special requests). As soon as the equipment is ready, it will be shipped to you. A road transport requires approximately one week to set up, it can take up to 3 weeks for a container depending on the destination.

Available at any time:

    • Pictures of completed installations
    • 2D/3D Images
    • Technical data sheets

Given on delivery :

    • EC certificate or declaration of incorporation *
    • Leakage test report *
    • Assembly instructions
    • Operating Manual
    • Technical details *
    • List of spare parts and supplies *

* If applied

S M L size of monoblock lamella clarifier DLM 1h2o3

Range of monobloc lamella clarifiers DLME for outdoor 1h2o3

Range of high lamella clarifiers DLH for building 1h2o3

Range of high lamella clarifiers DLHE for outdoor 1H2O3

The reinforced construction allows to contain pressures, whether they come from the inside because of the water, or from the outside with the earth. Placed on a solid foundation, a package can be:

    • completely buried
    • partially buried (example: 1.10 m overhang)
    • – simply placed on the slab

MBBR BOX enclosed or concealed installation options 1h2o3


    • 2 years, under normal conditions of use on parts, as defined at the time of the order.

Warranty extension:

    • This equipment can benefit from an extended warranty. The conditions of this extension will be discussed on a case-to-case basis.

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