EU Industrial Emissions Directive 2026: What Membrane Suppliers Must Prepare
The revised Industrial Emissions Directive (IED), effective mid-2026, lowers discharge ceilings for COD, total dissolved solids and a new watch-list of emerging pollutants — reshaping how industrial operators across Europe must treat their effluent.
Key changes at a glance
Parameter
Old limit
2026 limit
COD
250 mg/L
125 mg/L
TDS
2,000 mg/L
1,200 mg/L
PFAS (sum)
not regulated
0.10 µg/L
NH₃-N
30 mg/L
10 mg/L
Why membrane systems are now the default
Biological treatment alone can no longer meet the tightened COD and ammonia ceilings on high-strength industrial streams. Two-stage DTRO and DTNF systems routinely deliver permeate below 100 mg/L COD and under 8 mg/L NH₃-N, with 85–95% recovery — making them the most reliable compliance route for leachate, chemical and energy-sector effluents.
"For the streams the new IED targets, the question is no longer whether to use high-pressure membranes, but which module architecture fouls least over a 5-year horizon."
What ELBE EUT has prepared
Updated DT membrane datasheets with verified permeate quality vs. the 2026 limits.
Containerised pilot DTRO units for rapid on-site compliance trials.
Engineering packages pre-sized for the most affected sectors: landfills, coal-chemicals, power.
ELBE EUT Launches Next-Gen 90 bar DTRO Module at IFAT Munich
At IFAT 2026 — the world's leading trade fair for environmental technologies — ELBE EUT unveiled its new generation of 90 bar disc-tube reverse-osmosis modules, engineered to push recovery ceilings on saturated brines beyond what spiral-wound elements can reach.
What's new
The refreshed module retains the open-channel, individually-sealed disc architecture that makes DTRO resistant to fouling, but introduces a re-engineered hydraulic manifold that lowers pressure drop by 18%. The result: higher net driving pressure at the same feed pump, lifting maximum recovery on a 45 g/L brine from 82% to over 90%.
Live demonstration
Visitors to the ELBE EUT booth operated a working pilot skid treating synthetic landfill leachate in real time, watching permeate conductivity hold below 700 µS/cm while concentrate was concentrated to osmotic limits — a scenario where conventional spiral RO fails within days.
When landfill leachate COD climbs above 20,000 mg/L, spiral-wound reverse-osmosis elements typically foul irreversibly within weeks. We ran a 12-month side-by-side trial to quantify where disc-tube (DT) architecture pulls ahead.
Trial setup
Two parallel skids treated identical raw leachate (COD 24,000 mg/L, conductivity 19,000 µS/cm, turbidity 32 NTU): one with standard 8-inch spiral RO, one with ELBE EUT DTRO. Both ran at the same feed pressure and recovery setpoint, with identical CIP frequency.
12-month results
Metric
Spiral RO
DTRO
Normalised flux decline
−54%
−9%
CIP events / year
38
6
Achievable recovery
58%
89%
Membrane life
9 months
4.2 years
Levelised cost (€/m³)
4.10
2.35
The open feed channel of the DT module tolerates the high suspended solids and humic load without the glue-line and spacer fouling that cripple spiral elements. Even after accounting for DT's higher module unit cost, the levelised treatment cost is 43% lower because recovery is higher, replacement is rare, and CIP downtime shrinks dramatically.
"On high-COD leachate, the DTRO's premium pays back in under 14 months — and the gap widens every year after."
Project2026-05-20
Coal-to-Chemicals ZLD: A 2,400 m³/Day Case Breakdown
A Chinese coal-to-liquids plant needed to eliminate liquid discharge while recovering process water. Here's how the ELBE EUT process design delivered full ZLD at 2,400 m³/day.
Feed characterisation
Parameter
Value
Flow
2,400 m³/day
TDS
18,500 mg/L
COD
6,200 mg/L
Hardness (as CaCO₃)
3,400 mg/L
Temperature
38 °C
Process train
Softening & pre-treatment: lime-soda softening + PP tubular MF to cut hardness and suspended solids ahead of the high-pressure stages.
Concentration: two-stage DTRO (DTNF lead + DTRO tail) operating up to 75 bar, lifting recovery to 92%.
Brine crystallisation: mechanical vapour compression (MVC) on the 8% concentrate, yielding dry mixed salts and distillate returned as make-up water.
Energy recovery: isobaric energy-recovery device on the DTRO concentrate cut specific energy to 3.8 kWh/m³.
Outcome
Overall water recovery reached 98.4%, with the balance leaving as dry solids. Permeate meets boiler make-up quality (conductivity < 50 µS/cm), eliminating the plant's fresh-water intake for cooling tower make-up. The project achieved commissioning acceptance on the first attempt and has run continuously since.