Aerobic-anaerobic combined tea polyphenol production wastewater treatment system

Abstract

The invention discloses an aerobic-anaerobic combined tea polyphenol production wastewater treatment system which is characterized in that a sleeve and an anaerobic reactor are arranged in an inner cavity of an aerobic reactor, wherein the sleeve is fixed on the outer side of the anaerobic reactor through a sleeve bracket; a gap is formed between the sleeve and a bottom plate of the aerobic reactor; a gas-collecting hood is fixed on the upper part of the inner cavity of the anaerobic reactor; an air outlet tube communicated with the gas-collecting hood is fixed on the upper part of the anaerobic reactor; the bottom of the anaerobic reactor is fixed on a bottom plate of the aerobic reactor through a bottom support, and the middle of the anaerobic reactor is fixed on side walls on the upper part of the aerobic reactor through an upper support; an air supply tube is arranged in the gap between the sleeve and the anaerobic reactor and is a ring tube; a plurality of small holes are formed in the lower part of the air supply tube; and a water inlet tube is arranged at the bottom of the anaerobic reactor and is connected with outlets of a water supply pump and a circulating water pump. According to the system disclosed by the invention, high-concentration organic wastewater is treated in an aerobic-anaerobic combined manner.

Description

technical field [0001] The invention belongs to the technical field of tea production devices, and in particular relates to an aerobic-anaerobic combined tea polyphenol production wastewater treatment system. Background technique [0002] Tea, coffee, and cocoa are known as the world's three major non-alcoholic beverages. The number of people who drink tea every day in the world reaches as many as 3 billion. my country has a traditional habit of drinking tea. In the past, people believed that tea has high nutritional and health benefits and medicinal value because it contains vitamins and some trace elements, but this view is not comprehensive. Modern medical research has confirmed that the miraculous effects of tea mainly come from tea polyphenols which contain strong antioxidant capacity in tea. Tea polyphenols, also known as tea tannin, is a mixture of polyhydroxyphenol derivatives extracted from natural plant tea leaves, accounting for 15-30% of the dry weight of tea. ...

AI Technical Summary

Problems solved by technology

At present, a large amount of organic wastewater will be produced in the extraction process of tea polyphenols, which has the characteristics of high concentration of organic matter, large chroma, high concentration of polycyclic macromolecular phenolic compounds, high content of biological toxic substances and inorganic salts, etc. At present, domestic tea There are more and more polyphenol production plants, but the treatment of this type of wastewater has not been well resolved

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