Device and method for treating organic waste water by combining microorganism electrolytic tank and lemna minor cultivation

A technology of microbial electrolysis cell and organic sewage, applied in energy wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., to achieve the effect of improving the treatment effect and the ability to resist weather changes

Inactive Publication Date: 2014-06-18
INNER MONGOLIA UNIV OF SCI & TECH
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Problems solved by technology

[0005] In order to solve the limitations of traditional wastewater aerobic biological treatment, microalgae-type microbial fuel cell treatment of organic wastewater system and duckweed alone treatment of organic wastewater, the present invention provides a combination of

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  • Device and method for treating organic waste water by combining microorganism electrolytic tank and lemna minor cultivation
  • Device and method for treating organic waste water by combining microorganism electrolytic tank and lemna minor cultivation

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] figure 1 Schematic diagram of the principle of resource treatment of organic wastewater in combination with microbial electrolysis cell and duckweed cultivation described in the examples. In this embodiment, the method and device for recycling organic waste water by combining microbial electrolysis cell and duckweed culture are carried out according to the following sequence and steps:

[0036] (1) Construction of the coupling system of microbial electrolysis cell and photobioreactor

[0037] see figure 1 The microbial electrolysis cell and the photobioreactor coupling system include two units of the microbial electrolysis cell and the photobioreactor; The electrode 4 and the cathode electrode 5, the anode electrode 4 and the cathode electrode 5 are respectively connected to the high potential end and the low potential end of the DC stabilized volta...

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Abstract

The invention relates to a waste water treatment technology and specifically relates to a device and method for treating organic waste water by combining a microorganism electrolytic tank and lemna minor cultivation. The device comprises a microorganism electrolytic tank, a photobioreactor and a master controller, wherein a secondary light source, an illumination intensity detector and a nitrogen phosphorus concentration detector are arranged on the photobioreactor, and the lemna minor is cultivated in the photobioreactor. The defects that the microorganism electrolytic tank and the lemna minor are respectively used for treating the organic waste water can be overcome simultaneously, the treatment effect of the sewage is improved, and the obtained biofuel methane and biomass can be used for compensating the sewage treatment cost, a new path for efficiently treating the organic sewage is provided, and the method and the device have important significance on energy conservation and emission reduction and environmental management. And furthermore, the device is capable of overcoming the influence of the overcast and rainy weather and haze weather on the treatment efficiency, and the sewage treatment automatic control under different weather conditions can be realized.

Description

technical field [0001] The invention relates to a waste water treatment technology. Specifically, the present invention relates to a device and method for recycling organic wastewater by combining microbial electrolysis cells with duckweed cultivation, which can be widely used in the treatment of organic wastewater, and can obtain biofuel and biofuel while improving the wastewater treatment effect. substances, and can reduce the cost of wastewater treatment. Background technique [0002] A large amount of organic wastewater is produced every year in the world. The traditional wastewater biological treatment process not only consumes a lot of energy, but also produces a large amount of sludge, and the cost of sludge treatment is also high. Therefore, there is a need to develop alternative technologies that are more efficient and less costly. At the same time, energy shortage is also a major bottleneck restricting human development in the 21st century. Therefore, it is impe...

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Application Information

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IPC IPC(8): C02F9/14C10L3/08
CPCY02E50/30Y02W10/37
Inventor 蒋海明潘建刚李侠
Owner INNER MONGOLIA UNIV OF SCI & TECH
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