Method and device for comprehensively treating sewage through inorganic membrane, filler and fluid

Abstract

The invention discloses a method for comprehensively treating sewage through an inorganic membrane, filler and fluid. The method comprises the steps that partition plates provided with diversion holes are used for dividing a treatment filter tank into an anaerobic zone, a facultative aerobic zone, an aerobic zone and an auxiliary zone which are communicated with one another, an automatic control system, a water producing system, an aeration system and a dosing device are arranged in the auxiliary zone, porous honeycomb filler is arranged in the anaerobic zone and the facultative aerobic zone to serve as carriers of biocenoses, a nano plate ceramic membrane module is arranged in the aerobic zone, by means of cooperation of the automatic control system and the water producing system, the dissolved oxygen concentrations of the anaerobic zone, the facultative aerobic zone and the aerobic zone are adjusted and controlled, foam sponges or foam ceramic bodies are put into the aerobic zone, the biocenoses suspended in a water body have the carriers for implantation propagation, and degradation of organic substances in sewage is better promoted; in addition, the organic foam sponges can take random movement along with bubbles and flow to rub and clean dirt on a plate ceramic membrane, the speed of membrane contamination is reduced, the backwashing and chemical cleaning time is prolonged, and the flux of the plate ceramic membrane is guaranteed.

Description

technical field [0001] The invention relates to the field of municipal wastewater and industrial comprehensive wastewater treatment, in particular to a method and device for comprehensively treating sewage by using nano flat ceramic membranes, porous honeycomb ceramic fillers and fluid bodies. Background technique [0002] Now China's water pollution is becoming more and more serious, and municipal wastewater is the largest volume of wastewater, while industrial comprehensive wastewater has more complicated water quality and high pollutant concentration. At present, the membrane treatment technology used in wastewater treatment is to use organic membranes and fillers, while the organic material membranes have a small membrane flux, a relatively short life, and are easy to clog, have poor backwashing effects, and poor high pressure resistance. Poor corrosion resistance, poor tolerance to organic solvents, and relatively high requirements for influent petroleum indicators. Due...

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Problems solved by technology

At present, the membrane treatment technology used in wastewater treatment is to use organic material membranes and fillers, and the use of organic material membranes has a small membrane flux, a relatively short life, and is easy to clog, poor backwashing effect, poor high pressure resistance, Poor corrosion resistance, poor tolerance to organic solvents, and relatively high requirements for influent petroleum indicators. Due to these shortcomings of the organic membrane itself, the sewage treatment equipment has high cost, low efficiency, and short service life; Equipment as the carrier of biological colonies plays a very important role in sewage treatment. The effective area of ​​bio-implantation of the filler is the most important technical indicator, while the bio-implantation area of ​​traditional organic fillers is limited, which reduces the cost of the entire sewage treatment equipment. Treatment efficiency; finally, ordinary bioreactors only place filter membrane elements in the aerobic area, and it is easy to form a sludge layer on the membrane surface to block the membrane elements and reduce the filtration effect

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