Disclosed are a microalgae-sludge MABR reactor, a self-light condensing microalgae-sludge MABR reactor, and a microalgae-sludge eco-friendly wastewater treatment system. The present invention is based on a microalgae-sludge MABR water treatment system in combination with a regulating wastewater storage system, a microalgae-sludge MABR reactor, a terminal water quality control system, a condensed light supply system, and a pipeline transport system. A core microalgae-sludge MABR reactor comprises: an inner transparent reaction tube, a membrane separator, an intermediate transparent reaction tube, an outer support tube system, and an end plate; a condensed light supply system comprises a solar power generation and control system, a sunlight light condensing system, an electric light emission system, and another regulating wastewater storage system, a terminal water quality control system, and a pipeline transport system operate in cooperation with the microalgae-sludge MABR reactor and the condensed light supply system. The present invention may be applied in high nitrogen and phosphorus and highly eutrophic wastewater treatment or in micropollutant-containing wastewater treatment, etc. The present invention solves shortcomings in energy utilization, carbon source utilization, non-carbon source nutrient utilization, and eco-unfriendly circulation in a traditional water treatment process.
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