Two-stage method of applying white rot fungus to degrade hard-to-degrade environment pollutant

A technology of environmental pollutants and white rot fungi, which is applied in the field of environmental pollutant treatment, can solve the problems of harsh application conditions of white rot fungi, achieve strong anti-miscellaneous bacteria pollution, reduce feeding costs, and speed up the effect of reaction rate
CN1608755AInactive Publication Date: 2005-04-27TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2005-04-27
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The present invention is two-stage method of applying white rot fungus to degrade hard-to-degrade environment pollutant, and belongs to the field of environmental pollutant treating technology. Based on the research of the biochemical characteristic of white rot fungus, the present invention proposes intermittent running mode including two separated stages of growth and degradation. The present invention adopts high temperature culture and normal temperature degradation, agricultural waste corn cob and timber as nutrients source, high nutrients concentration for growth and low nutrients concentration for degradation and natural ventilation in growth stage, and thus has low power consumption and low cost. Adding carrier can maintain higher exocellular enzyme concentration, speed reaction, maintain higher decolorizing efficiency and separate mud from water. The present invention has good oxygen supply, good hydraulics characteristic and high hetero bacteria pollution resistance.
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Description

technical field

[0001] The invention belongs to the technical field of environmental pollutant treatment. Background technique

[0002] The white-rot fungus Phanerochaete chrysosporium has attracted extensive attention because of its strong ability to degrade refractory organic matter. A large number of studies have used various reactors to degrade different target compounds, and most of them have achieved good degradation results. However, the problem of harsh reaction conditions is common, which is the main obstacle for the large-scale practical application of white rot fungi to degrade environmental pollutants.

[0003] Most of the existing white-rot fungal reactors use a unified method of growth and degradation processes: higher nutrient concentrations can promote the growth of white-rot fungi, but will inhibit the initiation of secondary metabolism; the optimal growth temperature of white-rot fungi is 35 โ„ƒ-39โ„ƒ, most reactors use this temperature condition, the whole pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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