Solar power supply-microalgae aeration-coupling backflow oxygen supply micro-aerobic sludge bed combined device and application thereof

Abstract

The invention discloses a solar power supply-microalgae aeration-coupling backflow oxygen supply micro-aerobic sludge bed combined device. The device comprises a micro-aerobic treatment unit, an external circulation microalgae reoxygenation and precipitation integrated pool, a solar cell module and a light supplementing lamp; the micro-aerobic treatment unit comprises a micro-aerobic sludge bed, a reoxygenation water return pipe and a return pump; a micro-aerobic sludge filler is arranged in the micro-aerobic sludge bed; the micro-aerobic sludge bed is connected with the external circulation microalgae reoxygenation and precipitation integrated pool through a water outlet pipe, and the external circulation microalgae reoxygenation and precipitation integrated pool can be connected with a plurality of micro-aerobic treatment units; the light supplementing lamp is connected with the solar cell module through a storage battery and a charging controller. The device can be applied to wastewater treatment.

Description

technical field [0001] The invention relates to a solar power supply-microalgae aeration-coupling backflow oxygen supply micro-oxygen sludge bed combination device and its application in wastewater treatment, belonging to the technical field of sewage treatment. Background technique [0002] At present, most urban sewage treatment plants adopt the aerobic activated sludge process as the core sewage treatment method, which has high aeration rate, high energy consumption, high sludge production and high CO 2 Disadvantages such as discharge volume, in the face of major trends such as upgrading and upgrading of sewage plants, energy conservation and emission reduction, ensure less new construction and more renovation, and promote the implementation of new processes in the existing traditional craft structures after improvement or transformation, and become a sewage treatment industry Urgent problems. In the microaerobic biological denitrification system, the low dissolved oxyge...

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Problems solved by technology

[0003] In the current research on the symbiosis system of algae and bacteria, it is mainly to mix microalgae and bacteria together in a certain proportion. Due to the shading effect of sewage color, turbidity and sludge, the growth of microalgae is hindered, and the mixed Difficulty and cost of harvesting post-microalgae are bottlenecks restricting the development of microalgae biofuels

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