Experimental device for treating emulsified oil wastewater by UASB/MBR technology

Abstract

The invention discloses an experimental device for treating emulsified oil wastewater by UASB / MBR technology, which belongs to the technical field of wastewater treatment. The experimental device of the invention comprises four parts of a water intake system, an anaerobic digestion part, a membrane bioreactor, and a penetration water outlet part. The membrane bioreactor adopted by the invention combines the biodegradation function of a traditional activated sludge process with a high-efficient retention and separation effect of novel membrane separation technology, has the characteristics of high solid-liquid separation efficiency, less land occupation, convenient operation management, and the like, and avoids the disadvantages of sludge expansion, short solid retention time, and the like; the membrane surface of the polytetrafluoroethylene hollow fiber microfiltration membrane adopts chemical bond hydrophilic modification technology, and has the advantages of high flux, pollution resistance, and oil stain resistance. The whole device is controlled automatically, is very convenient for operation management, and is applicable to experiment teaching and scientific research.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an experimental device for treating emulsified oily wastewater by a UASB / MBR process. Background technique [0002] Oily wastewater is a kind of industrial wastewater with wide sources, large output, heavy pollution and difficult treatment. With the continuous improvement of social industrialization, the output of oily wastewater will increase, and the composition of wastewater will become more complex. [0003] Oily wastewater comes from a wide range of sources, such as oil extraction and refining, marine transportation, metallurgy and machinery industry, catering industry, food processing industry, etc. The main pollution source of oily wastewater is petrochemical industry, especially oil refining enterprises. Condensation and separation water of oil gas and oil products, washing water of oil gas and oil products, reaction water, tank car washing water...

AI Technical Summary

Problems solved by technology

This treatment method not only consumes a lot of energy, but also requires a high investment and occupies a large area, and the effluent cannot be reused.

Coupled with the deepening of the water resource crisis, people have higher and higher requirements for water quality, and the government has stricter legislation on wastewater discharge standards, all of which require that emulsified oily wastewater must undergo strict and effective treatment before it can be discharged or reused. The old three sets of water treatment processes can no longer meet the requirements of the rapid development of the industry. It is an inevitable choice to find a waste water treatment process that is efficient, feasible, economical and applicable, and easy to manage.

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