Traditional Chinese medicine wastewater treatment system and method for treating traditional Chinese medicine wastewater

Abstract

The invention discloses a traditional Chinese medicine wastewater treatment system and a method for treating traditional Chinese medicine wastewater. The traditional Chinese medicine wastewater treatment system consists of the following four parts of a pretreatment system, a biochemical treatment system, an advanced treatment system and a sludge treatment system. In the pretreatment system, a wastewater storage tank, a three-dimensional electrolytic cell, a sand filtering tank, a secondary filtering tank and an aeration device mainly take a role of blowing-off to remove chloroform from wastewater and thus to enable existence of microorganisms in the subsequent treatment buildings to be difficult, so that the defect that the traditional Chinese medicine wastewater is difficult to be treated biochemically is solved. According to the invention, the three-dimensional electrolysis is applied to the wastewater treatment, the test proves that 80% of COD of the wastewater can be degraded when the wastewater is subjected to electrolysis for 24 hours, the effect for treating highly difficult organic wastewater is obvious, and the biodegradability of the wastewater is increased; coagulation-sedimentation-filtration, blowing-off, three-dimensional electrolysis and biochemical treatment are well combined and applied, so that the effluent water quality is clear and the process cost is low.

Description

technical field [0001] The invention relates to a new wastewater treatment process, in particular to a traditional Chinese medicine wastewater treatment system and a method for treating traditional Chinese medicine wastewater. Background technique [0002] Traditional Chinese medicine wastewater pollution is mainly high-concentration organic wastewater, which comes from the production workshop and is produced during the process of washing and cooking medicinal materials, washing, and preparation. Wastewater includes raw drug washing wastewater in the production process, raw drug juice residue, filtration, distillation, extraction and other units of waste water. The main components of traditional Chinese medicine wastewater are sugar, ethanol, chloroform, glycosides, anthraquinone, lignin, alkaloid, tannin, protein, pigment and other substances. The concentration of organic pollutants is quite high, and the suspended solids such as lignin have a light specific gravity. , hi...

AI Technical Summary

Problems solved by technology

1) The wastewater pretreatment function is not good enough. Many traditional Chinese medicine wastewater contains organic solvents such as chloroform and ethanol. When the chloroform content in the wastewater is 0.5mg / L, the microorganisms will be dormant, making it difficult to carry out biological treatment, resulting in subsequent treatment The unit is difficult to operate; 2) The concentration of pollutants in traditional Chinese medicine wastewater is high, the specific gravity of suspended solids is light, it is difficult to settle, and the biodegradability of wastewater is poor. ,higher cost

Images