Combined Solar Powered Sewage Treatment Plant SBR Energy Saving Wastewater Treatment System

Brief Introduction
The combined solar wastewater Treatment Plant (SBR) is a modular wastewater treatment facility that combines a solar energy system with the Sequencing Batch Reactor (SBR) process. The core of it is to convert light energy into electrical energy through solar photovoltaic panels, providing power for aeration, stirring, drainage and other equipment in the SBR process, and achieving low-carbon and energy-saving operation of sewage treatment. This system is suitable for scenarios with unstable power supply, remote areas or those requiring green and energy-saving sewage treatment, featuring both environmental friendliness and sustainability.
Characteristics
Energy self-sufficiency
Generating electricity by utilizing solar energy reduces reliance on traditional power grids and lowers operating electricity costs, making it particularly suitable for areas with power shortages or high electricity prices.
When equipped with an energy storage system (such as a battery), it can operate continuously on cloudy days or at night, ensuring the stability of processing efficiency.
Modular and combinatorial design
The equipment has a high degree of integration and can be flexibly combined according to the treatment scale. It is convenient for installation, expansion or relocation, and is suitable for medium and small-scale sewage treatment (such as villages, scenic spots, communities, etc.).
It occupies a small area, has a compact structure, and has low requirements for terrain and site.
Efficient sewage treatment capacity
Combining the advantages of the SBR process, it can effectively remove organic matter (COD, BOD), nitrogen, phosphorus and other pollutants, and the effluent quality meets the standards.
The sequential operation of SBR (influent, reaction, sedimentation, and drainage) can be flexibly adjusted to adapt to fluctuations in water quality and has a strong ability to resist shock loads.
Low-carbon environmental protection and intelligence
It has no consumption of fossil energy and reduces carbon emissions, which is in line with the concept of green development.
It can be combined with an automated control system to automatically adjust the operating parameters based on solar power generation and water quality indicators, reducing the cost of manual maintenance.
It has a wide range of applicable scenarios
It is applicable to remote rural areas, islands, highway service areas and other regions far from municipal pipelines, or ecological parks with high environmental protection requirements.
Principle
The principle of the combined solar sewage treatment plant can be divided into two parts: the solar energy system and the SBR process system. Both work in coordination through power supply and equipment operation:
(1) Principles of Solar Energy Systems
Energy conversion process
Solar power generation: Photovoltaic panels absorb light energy and convert it into direct current (DC) through the photoelectric effect.
Electric energy storage and conversion: Direct current is stored in the battery through the controller or converted into alternating current (AC) through the inverter to supply power to the sewage treatment equipment.
Energy management: The control system adjusts the power supply priority based on the real-time power generation and the power demand of the equipment (such as giving priority to ensuring the operation of aeration equipment), and activates the energy storage system when the power is insufficient.
Key equipment
Solar photovoltaic panels, batteries, inverters, controllers, cables and power distribution devices.
(II) Principles of the SBR Process System
SBR (Sequencing Batch Reactor Activated Sludge Process) is an intermittent wastewater treatment process. Its core principle is to achieve biochemical treatment of wastewater through time series control. The specific process is as follows:

Inlet stage: The sewage enters the reaction tank and the water level gradually rises.
Reaction stage (core)
Aeration: Oxygen is supplied to the tank through solar-driven aeration equipment (such as blowers and aeration heads). Microorganisms in the activated sludge degrade organic matter and simultaneously carry out nitrification reactions (converting ammonia nitrogen into nitrate).
Stirring (optional) : Stirring under anoxic or anaerobic conditions to achieve denitrification for nitrogen removal or phosphorus removal.
Sedimentation stage: Aeration and stirring are stopped. The activated sludge settles under the action of gravity, and the sewage and sludge are separated.
Drainage stage: The supernatant is discharged by a solar-driven drainage pump, while a portion of the activated sludge is retained in the tank (sludge return) to prepare for the next cycle.
Idle stage (optional) : Depending on water quality requirements, it can be briefly idle to restore the activity of the sludge, or directly enter the next cycle.
(3) The combination mechanism of solar energy and SBR
Power supply: Solar energy provides power for equipment such as aeration fans, agitators, and drainage pumps in the SBR process, replacing traditional grid power supply and reducing energy consumption.
Collaborative optimization: The control system dynamically adjusts the operation cycle of the SBR based on the solar power generation (such as increasing the aeration time on sunny days and shortening the cycle on cloudy days to save electricity), ensuring a balance between treatment efficiency and energy utilization.
Summary
The combined solar sewage treatment plant, through the innovative model of "solar energy + SBR", integrates renewable energy with efficient sewage treatment processes. It not only leverages the flexibility and efficiency of the SBR process but also achieves low-carbon operation through solar energy, providing a sustainable solution for decentralized sewage treatment.