Composite membrane bioreactor for mustard mustard wastewater treatment

Abstract

The invention discloses a compound membrane bioreactor for treating tuber mustard waste water, which is an integrated reactor formed by combining a biomembrane process and active sludge process combined compound bioreaction area and membrane separation. The reactor consists of a membrane suspending area, a membrane piece area, a water feeding system, an aeration system, a water discharge system and self-control equipment. Attached growth biomembrane and suspended active sludge, which are two coexisting microorganisms, cooperate to remove the pollutants from the tuber mustard waste water; and the purified waste water is subjected to sludge and water separation by a membrane and is discharged after reaching standards. The sludge expansion in a salt-containing waste water active sludge treatment process is inhibited by means of filling a filler in the bioreaction area and using the membrane separation component in place of the conventional biological treatment. The reactor has the characteristics that: the microorganism concentration is high; the population structure is diversified; the food chain is long; the impact load resistance is high; the treatment organic load is high; the biological nitrogen and phosphor removal capacity is high; membrane pollution can be relieved and can be controlled easily; the quality of effluent is high; the project investment and operation cost arelow; and the like.

Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to the technology for treating pickled mustard wastewater by a composite membrane bioreactor. Background technique

[0002] The present invention mainly takes mustard mustard salt-containing comprehensive wastewater as the treatment object to carry out research. In my country, only about 35 million tons of mustard mustard wastewater is produced every year in the Three Gorges Reservoir area. The characteristics of high organic matter and high organic matter have a great impact on the water environment of the reservoir area, and the corresponding pollution prevention and control work has not progressed satisfactorily due to the lack of practical technologies. At present, the waste water produced in many food industrial parks has not been effectively treated and discharged in an orderly manner, causing serious pollution of secondary rivers, drinking water sources in...

Examples

Embodiment Construction

[0033] Below in conjunction with accompanying drawing, further illustrate structure and working method of the present invention:

[0034] The reactor is composed of a biological reaction area and a membrane separation area, which are integrated in a general pool.

[0035] see figure 1 , Figure 4 and Figure 5 , the biological reaction zone is a rectangular parallelepiped tank, located at the front end of the whole set of reactors, including a film-hanging tank 17, a composite semi-soft filler 6, a water inlet pipe 3, an aeration system and automatic control equipment. Sewage enters the film-hanging tank 17 through the water inlet pipe 3, and the aeration tube 5 of the aeration system is arranged in the tank through an elbow, and a certain distance is kept from the bottom of the tank by a bracket, which is convenient for the normal operation of the aeration system. External aeration pump 1 is connected.

[0036] see figure 1 , figure 2 and image 3 , the membrane separ...

technical field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to the technology for treating pickled mustard wastewater by a composite membrane bioreactor. Background technique

[0002] The present invention mainly takes mustard mustard salt-containing comprehensive wastewater as the treatment object to carry out research. In my country, only about 35 million tons of mustard mustard wastewater is produced every year in the Three Gorges Reservoir area. The characteristics of high organic matter and high organic matter have a great impact on the water environment of the reservoir area, and the corresponding pollution prevention and control work has not progressed satisfactorily due to the lack of practical technologies. At present, the waste water produced in many food industrial parks has not been effectively treated and discharged in an orderly manner, causing serious pollution of secondary rivers, drinking water sources in...

Examples

Embodiment Construction

[0033] Below in conjunction with accompanying drawing, further illustrate structure and working method of the present invention:

[0034] The reactor is composed of a biological reaction area and a membrane separation area, which are integrated in a general pool.

[0035] see figure 1 , Figure 4 and Figure 5 , the biological reaction zone is a rectangular parallelepiped tank, located at the front end of the whole set of reactors, including a film-hanging tank 17, a composite semi-soft filler 6, a water inlet pipe 3, an aeration system and automatic control equipment. Sewage enters the film-hanging tank 17 through the water inlet pipe 3, and the aeration tube 5 of the aeration system is arranged in the tank through an elbow, and a certain distance is kept from the bottom of the tank by a bracket, which is convenient for the normal operation of the aeration system. External aeration pump 1 is connected.

[0036] see figure 1 , figure 2 and image 3 , the membrane separ...

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