Decentralized wastewater & water-recovery system

One system.
Every grade of water your household needs.

LogicPure treats household wastewater on site and decides, litre by litre, which water is already good enough to reuse — and which is worth polishing further.

LogicPure compact housing installed at a home exterior, with blackwater and greywater piped in and the general-use and higher-quality tanks receiving the two treated water grades
The compact housing and its two water-grade tanks: general-use water by default, or, only when the designated requirement calls for it, higher-quality water via adaptive polishing. Illustrative installation rendering, not to scale.

Why a "system," not a filter

Most decentralized systems are built for one water grade — and one treatment intensity.

A conventional on-site plant treats every litre to the same fixed spec. A polishing stage, if it runs on everything, spends its limited capacity on water that never needed the extra step.

  • 01

    Single-grade output

    Water is either processed all the way regardless of need, or the whole system is oversized for its rare highest requirement.

  • 02

    Fixed treatment intensity

    Polishing runs on quality alone, without regard for capacity left before the next regeneration.

  • 03

    One waste stream for everything

    Sludge, backwash, cleaning waste and concentrate get treated as one problem, though only some are safe to return upstream.

The system

A staged biological train, engineered to run compact — then one adaptive subsystem on top of it.

Primary treatment feeds three separated biological zones and a clarification/membrane train, then a mode-selection valve decides per batch how far a litre needs to go.

Multi-grade water

Not every litre needs the same treatment. The system asks, then decides.

The mode-selection valve reads a designated quality requirement and routes baseline reuse water straight to general use, or on to selective polishing.

Grade 1
General-use water
  • Toilet flushing
  • Irrigation, where permitted
  • Washing and general utility use
  • Default destination — no polishing required
Grade 2
Higher-quality water
  • Produced only when the designated requirement calls for it
  • Gated by an independent quality sensor
  • Admission is independent of the mode signal
  • Extensible to three or more grades
ReadsAchieved quality
+
ReadsDesignated requirement
+
ReadsRemaining capacity
→
DecidesTreatment duty & destination

Conductivity / TDS is an ionic-quality control signal, not a certification of potability — a potable end use is verified against applicable requirements beyond what the system's sensors measure.

Adaptive core

One subsystem adapts its own duty to how much capacity it actually has left.

The regenerable electrosorption module tracks a remaining adsorption-capacity state. When water falls short of the higher grade, that capacity — not just the quality reading — decides what happens next: another pass, or a clean routing to general use.

A
q = ∫ I(t) dt
Charge-integration estimate
B
M_ads = ∫ Q(t)[C_in(t) − C_out(t)] dt
Ionic mass-balance estimate
C
Hybrid / calibrated estimate
A + B, corrected for aging & flow
Remaining adsorption capacity
71% ILLUSTRATIVE
Bypass / treat
low load
Additional pass
capacity available

Nothing handled the same way

Four waste streams, sorted by what they're actually compatible with.

Sludge, backwash, chemical cleaning waste and polishing concentrate are measured and source-tagged separately — only some are safe to return toward the biological process.

Reintegrated

Biological sludge

Partly reused as seed toward the primary treatment stage.

Optionally returned

Hydraulic UF backwash

May return to equalization where compatible.

Always isolated

Chemical CIP waste

Routed to isolated holding, never toward biological feed.

Always isolated

Polishing concentrate

Dedicated storage, gated by its own headroom interlock.

Compact by design

Three compartments, arranged so gravity does the work pumps otherwise would.

A dry service compartment keeps electronics clear of the wetted path; the process compartment sits above the tank compartment so water falls between stages.

Service compartment
Controller Blower Ozone generator Electrosorption electronics
Process compartment
MBBR chambers Clarification UV-C / UF Adaptive polishing
Tank compartment
Equalization General-use tank Higher-quality tank Concentrate
Housing shown in cross-section (hatched face, left). Gravity-fed — each stage sits below the last, with no transfer pump between them.

By the numbers

Illustrative design targets for a household embodiment.

Sized around a ~500 L/day household — the architecture scales modularly for larger buildings.

500 L
/ day design target
2+
water grades, extensible to 3+
3
separated biological zones
4
waste streams, individually sourced

Figures above are illustrative engineering design targets, not certified or third-party-validated performance, and remain subject to prototype and bench validation.