Small-scale wastewater treatment plant with SBR technology (4–8 PE)
#Small-scale sewage treatment plant
#PlugAndPlay
#SBRtechnology
#WiFiControl
#StableGroundwater
#passable by car
#SlimDesign
#4-8PE
#ExpandableUpTo50PE
RoOxy – A Compact, Complete Solution for Modern Wastewater Treatment.
The RoOxy small-scale sewage treatment plant is a modern, plug-and-play complete system for the biological purification of wastewater from private households, vacation homes, or small commercial units. The system combines a robust single-tank, dual-chamber design with efficient SBR (Sequencing Batch Reactor) technology, offering a particularly space-saving solution for properties with limited installation space.
Thanks to its pre-assembled components, robust construction made of wastewater-resistant PE plastic, and intelligent control system, RoOxy represents a reliable and low-maintenance solution for decentralized wastewater treatment.
Furthermore, the system impresses with its high structural load-bearing capacity:
The unit can be safely installed in groundwater conditions reaching up to 1.12 meters above the tank base.
Suitable for vehicular traffic (passenger cars) up to 3.5 tons.
The RoOxy in Detail
RoOxy complete systems are supplied as standard as single-tank, dual-chamber units designed for 4–8 population equivalents (PE). An integrated, rotationally molded partition wall ensures exceptional structural stability and optimal process control within the tank. Thanks to its narrow, rectangular design, the system is ideally suited for properties with limited space or challenging installation conditions. Two telescopic DN 600 access shafts ensure convenient accessibility for maintenance and service work at all times.
The external control column is integrated as a standard feature and supplied ready for connection—including the control unit, air distributor, and compressor—facilitating rapid installation and providing easy access to all central system components.
For larger applications, customized multi-tank solutions serving up to 50 PE can be implemented.
- The RoOxy Complete System:
- Sewage-resistant system made of PE
- Plug-and-play (pre-assembled)
- Outdoor unit (standard): plug-and-play, with controls, air distributor, and compressor.
- No putrefaction processes—consequently, fewer odors.
- No electrically driven or rotating components in the wastewater.
- Drainage Class C as standard; Drainage Class D optionally available.
- Scope of Delivery:
- Pre-assembled RoOxy SBR Technology
- PE outdoor column, plug-and-play, with control unit, and air distributor with solenoid valves for sludge recirculation and compressor.
- The air supply lines are not included in the scope of delivery. Four DN 13 hoses are required.
Compatible System Technologies & Control
- The control unit can be operated via three buttons or via Wi-Fi using an integrated web browser. Remote data transmission is possible via a router; no GSM module is required for this.
- SBR systems with electric pumps and float switches
- SBR Systems with Air-Lift Pumps
- SBR systems with submersible aerators and dosing via backwash sludge pump pulses.
- Fluidized-Bed and Fixed-Bed Systems
- Trickling filters in a wide variety of designs
Display & Controls
- Graphic LCD, 128x64 pixels, 2.4", backlit
- 3x LED (Error: red; Operation: yellow; Eco: green)
- 3-Button Operation
Sensors & Signal Inputs
- 2 digital inputs via terminals
- 1 analog 4–20 mA input (external power supply)
- 230V Mains Connection Cable, 1 m, with CEE 7/7 Plug
- USB port for data transfer to the control unit
- Pressure Sensor for Water Level Measurement and Blower Monitoring, 0–500 mbar
Switching outputs & relays
- 5 Relays (230V)
- 1 x 16A nominal relay; CEE 7/3 socket located in the left side wall of the housing.
- 2 Relays (16A nominal) via terminals (PE, N, and L in different colors)
- 2 Relays (5A rated) via terminals (PE, N, and L in different colors)
- A maximum of 4 relays can be switched simultaneously.
- 1 Output for alarm lamp (5V DC, 20mA max.)
Security & System Functions
- Shared current monitoring for all outputs (max. 3A)
- 6.3 A fuse, common to all outputs
- Easily replaceable NiMH batteries for power failure alarms and signaling (2 x AA)
- Buzzer for acoustic alarms, including power failure
- RTC (Time & Date), battery-backed
- Wi-Fi module
Technical data & dimensions
How SBR Wastewater Treatment Works
The RoOxy small-scale wastewater treatment plant uses the SBR (Sequencing Batch Reactor) process for the biological treatment of wastewater. The system consists of two sections:
- Sludge storage
- SBR reactor
The treatment process is automated and takes place in several phases:
- Reactor filling
- Biological treatment by microorganisms
- Sedimentation of solids
- Clear water discharge
The treated water can then be discharged in accordance with local regulations.
Advantages of RoOxy
Economic Viability & Efficiency
- Single-Tank, Two-Chamber System for 4–8 PE: A compact, complete solution for private applications. Individually expandable up to 50 PE through multi-tank solutions.
- Quick Installation: Compact design for easy installation.
- Pre-assembled Technology: Plug-and-play system for rapid commissioning
- Drainage Class C as standard; optional Drainage Class D available.
- SBR Technology: Ensures efficient biological wastewater treatment.
- Wi-Fi-enabled control enables convenient operation and system monitoring.
- Remote monitoring via router possible no GSM module required.
Safety & Structural Analysis
- An integrated, rotomolded partition ensures outstanding structural stability of the container.
- Groundwater-Stable Construction: Suitable for installation in areas with groundwater.
- Container made of durable PE: corrosion-resistant and permanently stable.
- Passenger car trafficable up to 3.5 tons: suitable for installation in trafficable areas.
- High structural stability thanks to a sophisticated container design
- Secure System Monitoring via Pressure Sensor for Water Level Measurement and Blower Control
Sustainability & Maintenance
- No Putrefaction: Significantly reduces odor formation.
- No electrically driven or rotating components in the wastewater: reduced wear
- Two telescopic, walk-in DN 600 dome shafts enable convenient maintenance.
- Outdoor Pedestal with Centralized Technology Facilitates Service Work
- Groundwater-stable tank with a stable installation depth of 1.12 m from the tank base.
- Durable materials reduce operating and maintenance costs in the long term.
Installation
Installing the RoOxy is simple due to its shape; it requires a much smaller excavation pit and less backfill material.
FAQ
A small-scale sewage treatment plant is a decentralized wastewater treatment system that biologically treats wastewater when there is no connection to the public sewer system.
The RoOxy complete system is designed as standard for 4–8 population equivalents (PE), making it ideally suited for single-family homes, vacation homes, or small commercial units. For larger applications, customized system solutions can be implemented for connection sizes of up to 50 PE.
Can the RoOxy system also be installed in areas with high groundwater levels?
The RoOxy complete system is drivable by passenger cars up to 3.5 tons and can therefore be installed beneath trafficable surfaces, such as driveways or courtyards.
The system is designed for ease of maintenance. Two telescopic, walkable DN 600 access shafts provide easy access to all key components. Furthermore, the control unit, air distributor, and compressor are housed in an external PE column, thereby facilitating service work.
Control is managed via a 3-button interface directly on the unit, or conveniently via Wi-Fi using an integrated web browser. Additionally, remote monitoring is possible via a router, without the need for a GSM module.