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Method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater

A technology for P. trichomes and pulping wastewater, which is applied in biological water/sewage treatment, chemical instruments and methods, processing wastewater treatment, etc. It can solve the problems of system balance and stability risks, complex components, and difficulty in achieving effluent quality. , to achieve good economic and social effects, good practicability

Active Publication Date: 2016-08-17
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the rapid development of social economy in recent years, the amount of wastewater has increased and its composition has become increasingly complex. The treatment capacity of general biological methods has been difficult to meet the actual needs, especially when the wastewater contains temporary toxic and refractory substances. The traditional treatment process It is even more difficult to achieve the ideal effluent quality, and it will also bring great risks to the balance and stability of the original system

Method used

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  • Method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater
  • Method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater
  • Method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater

Examples

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Embodiment 1

[0026] A method for utilizing Phanerochaete chrysosporium to biointensify treatment of pulping wastewater, the steps are as follows:

[0027]1) Acclimatization and film formation of activated sludge: Take several 2000 mL beakers to make a bioreactor, add industrial composite filler and activated sludge to it, the concentration of activated sludge is about 20g / L, and add 500mg / L Glucose is used as the carbon source, aeration is carried out, the aeration is stopped for one hour every day, the supernatant is sucked by siphon method, and then the same volume of nutrient water (500mg / L glucose aqueous solution) as the supernatant is added, after a period of aeration , the sludge successfully hangs film.

[0028] 2) Preparation of bacterial liquid: inoculate Phanerochaete chrysosporium into potato liquid culture medium in a 250 mL Erlenmeyer flask from an inclined surface to make bacterial suspension, and culture it on a shaker at a constant temperature of 37°C for three to four day...

Embodiment 2

[0033] The method of using Phanerochaete chrysosporium to biointensify the treatment of pulping wastewater is the same as in Example 1, wherein, in the biointensification treatment step, the process parameters are temperature 18°C, pH 7.0, glucose content 300 mg / L, ammonium tartrate content of 0.02 mg / L, Phanerochaete chrysosporium suspension dosage of 100 mL / L and dissolved oxygen of 4 mg / L, measured COD and chromaticity after seven days of continuous reaction. Under these conditions, the COD removal rate was 71.36%, The chroma removal rate is 75%.

Embodiment 3

[0035] Utilize the method for Phanerochaete chrysosporium biointensification treatment of pulping wastewater, the same as in Example 1, wherein, in the biointensification treatment step, the glucose content is 300 mg / L, the pH is 6.0, and the ammonium tartrate content is 0.2 mg / L , the dosage of Phanerochaete chrysosporium was 100 mL / L, the temperature was 26°C, and the DO was 8 mg / L. After seven days of continuous reaction, the COD and chromaticity were measured. At this time, the COD removal rate and chromaticity removal rate respectively reached 89.74%, 66.67%, that is, the COD of the original wastewater is 368.12 mg / L, and the chroma is 60, and the COD of the treated effluent is 37.76mg / L, and the chroma is 20, which fully meets the national discharge standards. At this time, the COD removal ability is about 10% higher than that of the existing technology.

[0036] At the same time, the lignin content of the effluent was measured every day, which was determined by image ...

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Abstract

The invention discloses a method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater. The method comprises the following steps: 1) domestication of activated sludge and biofilm culturing; 2) preparation of phanerochaete chrysosporium bacteria solution; 3) bio-augmentation treatment of wastewater. The method of using phanerochaete chrysosporium for bio-augmentation treatment of pulping wastewater is characterized in that synergy between phanerochaete chrysosporium and indigenous microorganism on biofilm is utilized to biologically degrade xylogen to a certain extent, and generated micromolecules are utilized and degraded by biofilm microorganism, so that the method is more effective on treating pulping wastewater. Experiment for comparison shows that, when glucose content is 300 mg / L, the pH value is 6.0, the content of ammonium tartrate is 0.2 mg / L, the dosage of white rot fungi suspension is 100 mL / L, the temperature is 26 DEG C, and DO is 8 mg / L, the COD removal rate and the chroma removal rate are up to 89.74% and 66.67% respectively, COD of post-treatment water is 37.76 mg / L, and chroma is 20, so that full compliance with national discharge standard is ensured.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a method of using Phanerochaete chrysosporium ( P.Chrysosporium ) Bioaugmentation method for pulping wastewater treatment. Background technique [0002] The pulp and paper industry is one of the six major polluting industries in the world. Its wastewater contains a large amount of lignin, cellulose and various chemicals, and consumes a lot of oxygen. It is one of the main sources of environmental pollution. my country's paper industry discharges 4 billion tons of wastewater every year, accounting for 1 / 6 of the country's industrial wastewater discharge, and COD and SS both account for 1 / 4. Generally speaking, it has the characteristics of large discharge, complex pollutants, and difficult treatment. Not only It hinders the development of the paper industry, and seriously affects the daily life of the people and the improvement of the natural en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F103/28
CPCC02F3/347C02F2103/28
Inventor 乔维川张熠依谢震宇夏昊周乔傅博
Owner NANJING FORESTRY UNIV
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