Organic wastewater purification method and purification device

Abstract

The invention discloses an organic wastewater purification method. The method comprises the following steps of firstly, pouring wastewater into a barrel, wherein the barrel is internally provided with a positive electrode and a negative electrode of a power supply, and when the power supply is on, an electric field is formed between the positive electrode and the negative electrode; secondly, continuously introducing oxygen into the barrel; and thirdly, after fermentation is finished, filtering and adsorbing the wastewater in the barrel by using active carbon, then discharging the wastewater into outside. The innovation of the method and device is that electrodes are introduced in the wastewater purification process, after being powered on, the electrodes can adsorb ions in the wastewater, for example, the positive electrode adsorbs chlorine ions and the negative electrode adsorbs sodium ions. Ions in the wastewater gather around the electrodes, so that the concentration of ions in other positions in the wastewater is low, salt concentration of other positions in the wastewater is low, therefore, the suppression role of salt on microorganism is weakened substantially, and the fermentation process is accelerated greatly.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a method for purifying organic wastewater and its purification equipment. Background technique [0002] Wastewater discharged from canteens and restaurants contains a lot of energy, such as carbohydrates and protein fats. The conventional treatment plan is to carry out anaerobic fermentation of these wastewater, and the products of methane and ammonia can be recycled, and the obtained residue can be Used as fertilizer, the liquid is discharged into the external environment after filtration and adsorption. However, there is a defect in this method, that is, the waste water from restaurants and restaurants contains a lot of salt, and these salts will seriously affect the growth and reproduction of microorganisms, which will greatly lengthen the fermentation process of microorganisms, so it is necessary to change it. Contents of the invention [0003] Aiming at the deficiencies in th...

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Problems solved by technology

However, there is a defect in this method, that is, the wastewater from restaurants and restaurants contains a lot of salt, and these salts will seriously affect the growth and reproduction of microorganisms, which will greatly lengthen the fermentation process of microorganisms, so it is necessary to change it.

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