Preventive wastewater treatment in treatment plants with lipasanF®

lipasan©F

Wastewater treatment
– preventive instead of reactive

lipasanF® supports microbial fat breakdown at critical points such as inlets, grease chambers, and pumping stations. This helps minimize deposits and sewer biofilms—thereby reducing the formation of hydrogen sulfide (H₂S).

In short:

The focus is on prevention and routine rather than reactive measures:

  • Biological mobilization of grease layers and sewer biofilms at critical points
  • Reduction of H₂S risk and unpleasant odors
  • Lower corrosion pressure in sensitive areas
  • More predictable cleaning and disposal efforts

Why wastewater systems become costly and problematic

Fats and organic deposits can form layers such as sewer biofilms (“sielhaut”). These may create anaerobic conditions that promote sulfate reduction and H₂S formation. The result: unpleasant odors, corrosion, and increased maintenance requirements.

Common causes

  • Grease and deposits accumulate in calm or cold zones and chambers
  • Biofilms cover surfaces → oxygen depletion → anaerobic processes
  • Sulfate reduction → sulfide / H₂S (odor and material degradation)
  • Deposits reduce pipe capacity and strain pumping operations

Potential impacts

  • Odor nuisance, complaints, and safety concerns
  • Corrosion (e.g. microbiologically influenced) and increased rehabilitation needs
  • Unpredictable interventions: flushing, cleaning, vacuum trucks, downtime

The solution: lipasanF® – biological, preventive, and predictable

lipasanF® promotes microbial fat degradation. The goal is to destabilize grease deposits and convert them into biodegradable intermediate products—before stable layers and anaerobic zones can form.

How it works in the system

At hotspots, regular dosing can help reduce grease deposits and biofilms—thereby limiting conditions that promote H₂S.

  • Fats are broken down into smaller components (lipolysis)
  • Deposits become softer and more mobile → less adhesion
  • Fewer anaerobic zones → lower H₂S potential

Getting started
(pilot phase)

No one-size-fits-all approach: dosing points, quantities, and intervals are defined based on real system conditions.

  • Hotspot assessment: inlets, pumping stations, chambers, pipe sections
  • Dosing concept: points, intervals, dilution, and timing
  • Pilot phase (4–6 weeks): monitoring and fine-tuning
  • Routine operation: ongoing dosing with simple controls

Dosing is preferably carried out during low-flow periods to maximize contact time.

Why switch to a preventive approach

The goal is not a “quick fix”, but to reduce hotspot stress and stabilize maintenance routines.

  • Fewer emergency interventions and unexpected issues
  • Improved working environment due to reduced odor levels
  • Material-friendly approach without aggressive chemicals

Typical application areas

Most systems have recurring hotspots—this is where preventive action delivers the most value.

  • Inlets and grease chambers

Reducing floating layers and grease deposits

Stable grease layers often form in chambers. Routine dosing can destabilize these deposits and simplify maintenance.

  • Extended cleaning intervals (depending on system)
  • Fewer hardened grease accumulations
  • Simplified operation during low-flow periods

  • Pumping stations and pipeline networks

Mitigating hotspots and reducing H₂S risk

Biofilms and grease layers promote anaerobic conditions. Preventive treatment can reduce odor and corrosion pressure.

  • Reduced biofilm formation at critical points
  • More stable pump operation (less clogging)
  • Reduced strain on operational staff

  • Retention basins & plant environments

Mitigating odor peaks

During stagnation or fluctuations, odor peaks can occur. Targeted dosing can help reduce these risks.

  • Less frequent odor peaks (depending on system)
  • Fewer complaints
  • More predictable handling of critical time periods

Note: Implementation and effectiveness depend on system configuration, load, and temperature conditions.

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