SATE · anaerobic sewage treatment

Say goodbye to the septic tank. Meet SATE.

Developed to meet all Brazilian standards for domestic sewage treatment, SATE is the best option when the goal is to treat your project's sewage simply.

Request a quote Chat on WhatsApp
On the market since 2013 · throughout Brazil
Anaerobic treatment1 to 30 m³/day ABNTNBRABNT / NBRmeets all Brazilian standards Safe soil infiltrationprotects the water table SabespApproved
SATE — anaerobic sewage treatment tank hover and move the mouse · scroll to zoom
+25
years of water engineering
100%
biological, no chemicals
5 years
warranty
ABNTNBR
meets all Brazilian standards
The solution

Sewage treated on your own property, no septic pit.

SATE is the evolution of the septic tank and the definitive replacement for the biodigester. It is a compact, 100% natural domestic sewage treatment plant that enables discharge with no environmental risk.

Compliant with all Brazilian standards and legislation (ABNT NBR and CONAMA)
Biological treatment — no odor, no operation, no risk
Safety, robustness and durability
Request a quote
SATE 4,000 L plant being installed in Campos do Jordão — SP: white SATE-branded tank lowered into the trench next to the house
Why SATE

The right plant for your project

100% natural

Anaerobic, 100% biological treatment, in which contaminant removal (BOD and COD) happens organically, with no odor and no risk to the soil.

ABNT compliance

Designed to meet Brazilian standards ABNT NBR 17.076/24, 7.229/93, 12.209/11, 13.969/97 and CONAMA 430, ensuring environmental permitting throughout Brazil.

No civil works

Designed to withstand soil loads, it can be buried in the garden without any civil works, fully plug'n play.

Plug'n play installation

Sized by our specialists, installation is quick and practical, leaving the system ready the moment it is put in place.

Technical comparison

Why SATE?

SATE vs. the septic tank and the biodigester — criterion by criterion. The highlighted column shows where the compact plant delivers real compliance and safety.

Meets Partial / conditional Does not meet No data
Criterion
Recommended
SATE
Compact biological plant
Septic Tank
Conventional solution
Biodigester
Conventional solution
Meets the reference standard
SATE100%
Septic TankDepends on the design
BiodigesterDoes not meet
Proper sizing
SATEPer ABNT/NBR
Septic TankDepends on the design
BiodigesterNot sized
Contaminant removal (BOD)
SATEup to 70%
Septic TankLow
BiodigesterParameters without technical guarantee
Effluent safe for infiltration
SATEGuaranteed
Septic TankDepends on the design
BiodigesterNo parameters
Accounts for peak flow
SATEYes
Septic TankDepends on the design
BiodigesterNo
Sludge removal frequency
SATEOccasional (>1 year)
Septic TankDepends on the design
BiodigesterFrequent (required for operation)
Treatment service life
SATELong — watertight FRP (10+ years)
Septic TankMedium (<10 years)
BiodigesterShort (approx. 1 year)
Maintenance risk
SATELow
Septic TankMedium
BiodigesterHigh
Soil contamination risk
SATENone
Septic TankDepends on the design
BiodigesterHigh
Risk of environmental penalties
SATENone
Septic TankMedium
BiodigesterHigh
Warranty
SATE5-year factory warranty (product and performance)
Septic TankBuilder's construction warranty (no efficiency coverage)
BiodigesterVaries by manufacturer (product only)
Technical specification + ART (engineering responsibility record)
SATEComplete
Septic TankDepends on the design
BiodigesterNot provided
Approval by environmental agencies
SATEThroughout Brazil
Septic TankConditional
BiodigesterConditional
Deployment
SATEFast (plug'n play)
Septic TankComplex civil works
BiodigesterCivil works (slab and drying bed)
Installation time
SATE> 24 hours
Septic Tank> 5 days
Biodigester> 48 hours

Parameters according to project sizing and the ABNT/NBR standards applicable to domestic sewage treatment.

Request a SATE quote
Applications

Where SATE comes into play

A solution for treating sewage where the public network doesn't reach — simply and effectively, with no complications or rework.

Single-family homes

A decentralized sanitation solution for treating domestic, single-family sewage on lots, houses and country homes, protecting the soil and your well.

Communities, neighborhoods and residential complexes

SATE can be applied in collective settings, sized according to the existing population, becoming a definitive, odor-free solution with low OPEX and a high guarantee of sewage treatment quality.

Commercial and industrial

A sewage treatment solution sized to the size of the facility, meeting needs and regulations while avoiding future rework and operating routines.

Other applications

SATE adapts to situations where anaerobic sewage treatment is needed for safe soil infiltration, and is used in many scenarios — the ideal solution to protect the water table and its water sources.

On your property

How SATE works

From raw sewage to safe soil infiltration — step by step inside the anaerobic plant.

Isometric cutaway of a residential lot with SATE buried next to the house: sewage enters the septic tank, passes through the anaerobic filter and infiltrates the soil safely.

      Step by step

      Quick and easy installation

      Click each number on the drawing to see the stage — from preparing the trench to backfilling. The exact dimensions of each model are in the product manual.

      Cutaway of a buried ECOCASA tank: excavated trench, gravel and sand bedding, tank in place and piping connected
      Stage 01

      Digging the trench

      Dig/excavate the trench to the dimensions given in the product manual.

      Stage 02

      Preparing the bedding

      Prepare the bedding with 20 cm of No. 1 crushed stone and 20 cm of coarse sand, forming a firm, level base.

      Stage 03

      Placement and anchoring

      Place the tank in the trench and anchor it if necessary, ensuring the inlets and outlets are aligned.

      Stage 04

      Partial backfill

      Add sand up to half the tank's height, surrounding it evenly.

      Stage 05

      Filling

      Fill 50% of the tank's volume with water to balance pressures during backfilling.

      Stage 06

      Inlet and outlet

      Connect the system's inlet and outlet piping according to the hydraulic design.

      Stage 07

      Backfill and landscaping

      Complete the final backfill and landscaping — the system stays buried and invisible in the garden.

      Completed projects

      SATE on real job sites

      SATE tanks buried with piping
      Cisterna Pronta 30,000 L + SATE 4,000 L/day on the way to the site — Vacation home in Marau/BA
      SATE 4,000 L sewage treatment in Campos do Jordão/SP
      Frequently asked questions

      SATE compact WWTP: what you need to know

      What is a compact WWTP?
      A compact WWTP is a decentralized wastewater treatment plant, designed to treat sewage on the same property where it is generated.
      How does sewage treatment work in SATE?
      The system consists of a Septic Tank with a Submerged Upflow Anaerobic Filter as its complementary treatment unit, with complete fixed-bed filter media, ensuring a larger bacterial population and greater exposure of the sewage to the biological medium for treatment.
      Does SATE replace the septic tank and the biodigester?
      Yes, SATE is the true evolution of the septic tank treatment concept. And it delivers all the treatment efficiency that a biodigester cannot guarantee.
      Can sewage treated by SATE be reused?
      NO. Because it is an anaerobic treatment system, the treated effluent goes exclusively to soil infiltration via a soakaway or infiltration trench. For treated sewage reuse, see ECOTED.
      Does SATE meet the standards and get approved by environmental agencies?
      Yes. Designed, manufactured and supplied in accordance with all ABNT/NBR guidelines — 17.076/24, 7.229/93, 12.209/11, 13.969/97 and CONAMA 430 — SATE can be approved by regulatory agencies throughout Brazil. Ask our specialists for all the details on approving your system. SABESP-approved product.
      For designers

      SATE BIM file

      Equipment model to drop straight into your design. Quick sign-up, free of charge.

      Talk to ECOCASA

      Bring SATE to your project.

      Our team sizes the ideal plant for your project and handles all environmental compliance. Request a no-obligation quote.

      Chat on WhatsAppRequest a quote