A multi-channel anaerobic-aerobic alternating reaction experimental device and experimental method

Abstract

The invention relates to a multi-channel anaerobic-aerobic alternating reaction experimental device and an experimental method; the device is composed of an air intake device, a sealed reactor and a constant temperature water bath shaker. The glass rotameter in the air intake device quantitatively controls the gas flow rate, and the porous plastic gas splitter divides the air flow into multiple air streams; the main body of the sealed reactor is a conical flask, sealed with a rubber plug, and the glass tube enters and exits the air; constant temperature The water-bath shaker controls the temperature and speed of all sealed reactors. When nitrogen is passed through the reaction device, it is an anaerobic environment, and when air or oxygen is passed, it is an aerobic environment. The multi-channel anaerobic-aerobic alternating reaction and experimental method overcomes the shortcomings of the existing sequencing batch activated sludge method experimental device such as single channel, large reaction volume, and difficulty in cleaning. Multivariate Parallel Experimental Study on the Toxic Effect of Microorganisms and Its Adsorption and Degradation Mechanism in Batch Activated Sludge Process.

Description

technical field [0001] The invention belongs to the field of wastewater biological treatment experimental device and experimental method for simulating sequence batch activated sludge method, and in particular relates to a multi-channel anaerobic and aerobic alternating reaction experimental device and experimental method. Background technique [0002] Sequencing batch activated sludge method is an activated sludge sewage treatment method in which anaerobic and aerobic biological treatment processes alternately occur in the same reaction tank, and is widely used in urban sewage and industrial wastewater treatment. Trace pollutants in sewage, such as nanoparticles, drugs, endocrine disruptors, etc., although low in content, still pose a threat to human health and the environment. Therefore, it is urgent to study the removal mechanism of trace pollutants in the process of sewage treatment and their Toxic effects on sewage treatment organisms, thereby providing method theory an...

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Problems solved by technology

Trace pollutants in sewage, such as nanoparticles, drugs, endocrine disruptors, etc., although low in content, still pose a threat to human health and the environment. Therefore, it is urgent to study the removal mechanism of trace pollutants in sewage treatment and their Toxic effects on sewage treatment organisms, thereby providing method theory and data basis for the optimization of actual sewage treatment projects, improving the removal rate of trace pollutants, and reducing toxicity to water treatment microorganisms and the environment

The existing sequencing batch activated sludge process reaction experimental device such as figure 2 As shown, it is a single-channel fixture. Only one influencing factor can be studied in a single experiment, and parallel experiments cannot be set up. It is suitable for single-factor, multi-period long-term simulation experiments. When there are many influencing factors, it takes a lot of time.

The volume of the reaction liquid in the existing sequencing batch activated sludge method reaction experiment device is 2L. Due to the large volume of the reaction liquid and high requirements on biomass, it is only used to study the water treatment effect of activated sludge, not suitable for the study of a single microorganism. Water treatment effect, and the reaction volume is large, the amount of micro-pollutants added is large, not only high cost, but also harmful to the water environment; the existing sequencing batch activated sludge reaction experimental device is not easy to disassemble and clean, and cannot meet the aseptic requirements

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