Colloids and turbidity
Fine and destabilised particles can increase the fouling load reaching UF and RO.
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Application · Landfill leachate
Pretreatment before UF/RO.
ELETTROFLOTTAZIONE® is proposed as a modular upstream stage for variable landfill leachate: it targets suspended and colloidal matter, emulsified fractions and separable metals before the membrane train.
01LEACHATEVARIABLE FEED
→02ETFPRETREATMENT
→03UF / ROMEMBRANE TRAIN
01 · Process challenge
Membrane performance begins upstream.
Landfill leachate is a variable matrix containing dissolved and suspended organics, humic substances, ammoniacal nitrogen, salts, solids and metals. Age, rainfall, recirculation and landfill operation can change its composition over time. A single treatment stage is therefore rarely sufficient for every separation objective.
Emulsified fractions
Hydrophobic and emulsified compounds may be difficult to control through coarse mechanical filtration alone.
Variable feed
Changes in concentration and composition can shift pressure, flux, cleaning frequency and recovery.
Membrane protection
Pretreatment should reduce avoidable load while preserving UF/RO as the final separation barrier.
02 · Integrated treatment train
A complementary process architecture.
The exact configuration is defined from representative samples and pilot evidence. The scheme below describes the intended functional position of the ETF stage.
01EqualisationRepresentative, homogenised feed→
02ELETTROFLOTTAZIONE®Destabilisation, aggregation and flotation→
03Solid/liquid separationFloated and settled solids management→
04UF / ROMembrane finishing and water recovery
03 · Engineering targets
What the pretreatment is designed to improve.
Lower particulate load
Reduce suspended and colloidal matter transferred to downstream filtration.
More stable operation
Limit feed variability that can translate into unstable membrane operating conditions.
Controlled sludge line
Concentrate separated matter in a dedicated, measurable solids stream.
Modular integration
Interface the ETF section with existing or new containerised membrane plants.
04 · Validation pathway
Demonstrate first. Size afterwards.
Performance depends on the actual leachate, electrode configuration, current density, hydraulic retention time and downstream objectives. No industrial guarantee should therefore be based on generic literature values alone.
- 01Representative characterisation
Define variability, analytical baseline and membrane constraints.
- 02Laboratory screening
Identify a technically credible operating window on the actual liquid.
- 03ETF pilot-unit campaign
Verify continuous operation, mass balance, sludge behaviour and downstream water quality.
- 04Industrial scale-up
Translate validated data into capacity, redundancy, electrical power and interfaces.
05 · For membrane-system integrators
Add a qualified pretreatment module to your UF/RO package.
The collaboration can include application screening, test planning, process design, ETF module supply, P&ID interfaces, commissioning, training and performance verification. Project-specific integration keeps the membrane supplier in control of the complete treatment line while preserving specialist ETF know-how.
06 · Independent technical basis
Selected scientific references
Published research supports combined electrochemical and membrane processes for complex wastewater and landfill leachate. Site-specific testing remains necessary before selecting or guaranteeing an industrial configuration.