Photoreaction-MBR integrated nitrogen and phosphorus removal equipment

Abstract

The invention discloses photoreaction-MBR integrated nitrogen and phosphorus removal equipment, comprising a photobioreactor and an MBR membrane reactor, wherein the left side face of the photobioreactor is provided with a water inlet, the photobioreactor and the MBR membrane reactor are coupled by arranging a first pipeline and a recycling pipeline device, the photobioreactor adopts an air-lift type photobioreactor, the photobioreactor is internally provided with algae and activated sludge, the MBR membrane reactor is formed by aeration assemblies and a membrane assembly, the bottom ends of the inner parts of the photobioreactor and the MBR membrane reactor are respectively provided with a blower device, the aeration assemblies are fixedly mounted on the upper surfaces of the blower devices, the blower device in the photobioreactor and the blower device in the MBR membrane reactor are connected into a whole, and the right side of the MBR membrane reactor is provided with a water outlet and an air outlet. The photoreaction-MBR integrated nitrogen and phosphorus removal equipment has the advantages of realizing a bacteria and algae symbiosis mode, deep treating sewage by a two-stepprocess of the photobioreactor and the MBR membrane reactor, and achieving a high recycling rate and the nitrogen and phosphorus removal effect of 90%.

Description

technical field [0001] The invention relates to the technical field of domestic sewage treatment, in particular to a photoreaction-MBR integrated nitrogen and phosphorus removal equipment. Background technique [0002] The problem of eutrophication of water body is due to the discharge of wastewater containing nutrients such as nitrogen and phosphorus into the water body, resulting in a high degree of nutrient in the water body. For example, the rapid reproduction of plankton such as algae reduces the concentration of dissolved oxygen in the water, resulting in a large number of aquatic organisms such as fish and shrimps dying. It is easy to produce odorous gas, low dissolved oxygen, release toxic substances and other environmental problems, which will cause serious damage to the stability of the water ecosystem. . Therefore, the problem of eutrophication has become the focus of today's society. [0003] The nitrogen and phosphorus in urban domestic sewage are mainly inorg...

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Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a photoreaction-MBR integrated denitrification and phosphorus removal equipment, which solves the inhibition of phosphorus release by denitrifying phosphorus-accumulating bacteria in aerobic and anaerobic environments during single treatment, and at the same time solves the problem of photobiological The problem of low repetition rate of algae biomass in the process of reaction and membrane reaction

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