SBR Sequencing Batch Reactor – Xealio Water & Wastewater Treatment

What is an SBR Treatment System?

Sequencing Batch Reactor

At Xealio, we offer SBR wastewater treatment technology as a compact, flexible, and highly effective solution for treating domestic, municipal, and industrial wastewater. SBR is a well-established biological treatment technology which recycles a single biological treatment tank as multiple stages in the treatment process, including filling, aeration, biological reaction, settling and discharge of treated water.

In an SBR system, the process is performed in time instead of in space, as is the case with conventional wastewater treatment systems which usually have separate tanks for each treatment step. This implies that the wastewater is processed in a controlled batch in a single reactor tank. This results in less need for extra clarifiers, sludge return pumps and complicated hydraulic arrangements, and makes it particularly suitable for compact and containerized treatment plants.

SBR Steps

Fill Phase

The typical stages of the SBR process include five steps. In the fill phase, the wastewater enters the reactor. This phase can be performed aerated or without aeration, or with and without mixing. Such conditions facilitate biological treatments like removal of organic matter, reduction of nitrogen and reduction of phosphorus.

SBR STEPS

Reaction Phase

Following the reaction phase, the system goes into a settle phase. The entire aeration and mixing is stopped and the biological sludge will settle naturally at the bottom of the tank. During this period the tank is stationary and solids separation may be very efficient as compared to continuous-flow systems.

SBR Steps

Settle Phase

The draw / decant process starts when the sludge has settled. The treated water is gently pumped from the top clear section of the tank through the decanting mechanism of the tank and not disturbing the settled sludge at the bottom of the tank. If desired, an idle time phase may follow that provides flexibility in the system before the next cycle starts and permits the removal of excess sludge when required.

SBR STEPS

Decant Phase

One of the most important benefits of SBR technology is its capacity to enable high levels of nutrient removal. The system can be designed to remove organic pollution, nitrogen and phosphorus, since aerobic and anoxic, as well as anaerobic conditions can be created in the same tank.

At Xealio we incorporate SBR technology into engineered wastewater treatment systems that are practical, automated and flexible to meet site needs. Controlling modern SBR systems can be achieved using timers, sensors, dissolved oxygen monitoring and PLC based automation, resulting in a flexible process control while maintaining the reliability of operation.

When space efficiency, treatment performance and flexibility of operation are significant, SBR technology provides a good balance between compact design and high quality effluent. The Xealio engineering approach allows for the transfer of this technology to containerized plants, remote sites, industrial facilities, communities, and projects needing reliable wastewater treatment in challenging environments.

No.	Model	Flow Rate [m³/day]	Equivalent Population [PE]	Container Quantity	Container Type	Width [m]	Height [m]	Length [m]
1	Alpha SBR 25	5	25	1	20 ft	2.44	2.59	6.06
2	Alpha SBR 50	10	50	1	20 ft	2.44	2.59	6.06
3	Alpha SBR 100	20	100	1	20 ft	2.44	2.59	6.06
4	Alpha SBR 150	30	150	1	20 ft	2.44	2.59	6.06
5	Alpha SBR 200	40	200	1	40 ft	2.44	2.59	12.19
6	Alpha SBR 250	50	250	1	40 ft	2.44	2.59	12.19
7	Alpha SBR 300	60	300	1	40 ft	2.44	2.59	12.19
8	Alpha SBR 350	70	350	1	40 ft	2.44	2.59	12.19
9	Alpha SBR 400	80	400	2	40 ft	2.44	2.59	12.19
10	Alpha SBR 450	90	450	2	40 ft	2.44	2.59	12.19
11	Alpha SBR 500	100	500	2	40 ft	2.44	2.59	12.19
12	Alpha SBR 550	110	550	2	40 ft	2.44	2.59	12.19
13	Alpha SBR 600	120	600	2	40 ft	2.44	2.59	12.19
14	Alpha SBR 650	130	650	2	40 ft	2.44	2.59	12.19
15	Alpha SBR 700	140	700	2	40 ft	2.44	2.59	12.19
16	Alpha SBR 750	150	750	3	40 ft	2.44	2.59	12.19

How does the SBR wastewater treatment system work?

The Xealio SBR system performs biological treatment, settling and treated water discharge within a controlled batch cycle. Wastewater passes through the fill, react, settle and decant stages in the same biological reactor. This configuration provides reliable treatment performance while reducing the number of separate process tanks required.

Why choose SBR for a containerized wastewater treatment plant?

SBR technology combines several treatment stages within a compact process configuration, making it particularly suitable for modular and containerized wastewater treatment plants. It reduces civil construction requirements, allows rapid deployment and can be expanded by adding additional treatment modules as the required capacity increases.

Can the Xealio SBR handle variable flows and shock loads?

Yes. The operating cycles can be adjusted according to variations in wastewater flow and pollutant load. Equalization, automated level control and PLC-managed process cycles help protect the biological treatment process against peak flows and temporary load fluctuations. Final system configuration is determined according to the project’s wastewater characteristics.

Is the Xealio SBR system easy to operate and maintain?

The system is designed for automated operation using PLC-based process control. Aeration, filling, settling, decanting and sludge removal sequences are managed automatically. Remote monitoring, alarm notifications and standard industrial components can also be included to simplify operation, maintenance and spare-parts availability.