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SBR

SBR — Sequencing Batch Reactor

All treatment stages in a single reactor vessel

01 — Overview

How it works

The SBR is a fill-and-draw activated sludge system. Wastewater is added to a single batch reactor, treated to remove undesirable components, and then discharged. Equalization, aeration, and clarification are all achieved in one reactor — two or more reactors run a predetermined sequence to keep flow continuous.

Capacity
50 KLD – 2 MLD and above
Best suited to
Large townships, municipal, industrial
BOD removal
85–90%
Cycle time
4–6 cycles per day per reactor
Footprint
Minimal — single-vessel process
Nutrient removal
High — biological N & P
02 — Schematic

How the plant is arranged

Click any vessel to read what it does.

Fill-and-draw treatment

Five phases. One intelligent reactor.

The water level, aeration, settling, and decant sequence are shown inside the same vessel to make the batch logic immediately legible.

PLC-controlled cycle
Swipe to follow the complete train →
The sequence repeats automatically across duty reactors.
Stage 02 / 05

React

Aeration and mixing remove BOD while controlled aerobic and anoxic periods support nutrient removal.

In process
BOD removal 85–90%High nutrient removalMinimal footprintControllable react time
03 — Process

Process flow

Follow the numbered train from inlet to treated-water reuse. Click any stage for its engineering note.

Stage 01 / 10
Selected process

Bar Screen & Grit Removal

Screening ahead of the reactor removes coarse solids and grit.

04 — Advantages

Why SBR

01

Equalization, primary clarification, biological treatment and secondary clarification in a single reactor vessel.

02

Requires small space — minimal footprint.

03

Controllable react time and quiescent settling.

04

High nutrient removal capability, including biological nitrogen and phosphorus removal.

05

BOD removal efficiency generally 85 to 90%.

06

Filamentous growth elimination through controlled fill strategy.

05 — Applications

Who it's for

Large TownshipsMunicipal ProjectsIndustrial CampusesGated CommunitiesCommercial ComplexesEducational Institutions
06 — Compare

Other technologies

Considering SBR for your site?

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