Method for preparing bio-adsorbent for chromium-containing wastewater treatment and application thereof
An adsorbent and waste water technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of pollution-prone environment treatment cost, limit practical use, limit application, etc., to achieve The effect of low processing cost, convenient operation and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] Embodiment 1 Unfermented wheat bran is to Cr 6+ Study on Adsorption Effect
[0028] 1. Pretreatment of wheat bran
[0029] Wheat bran was dried and pulverized at 60°C, sieved through a 40-mesh sieve, and mixed with 0.1mol / L H 2 SO 4 Adjust the pH to the desired value with NaOH solution, and adjust the concentration of the wheat bran liquid to the desired concentration, and keep it warm at 121°C for 0.5h.
[0030] 2. Adsorption treatment method
[0031] The initial concentration of 100ml is 300mg / L Cr 6+ The solution was placed in a 250ml Erlenmeyer flask with 0.1mol / L H 2 SO 4 and NaOH to adjust its pH to 1.0, 2.0, 3.0, 3.8, 4.7, 5.9 and 7.0, add 10, 20, 30, 40, 50, 60g / L wheat bran, and place the temperature at 25, 30, 35, 40 Carry out oscillation adsorption reaction at 150rpm in a water bath constant temperature oscillator at 45°C, filter after 0.25, 0.5, 1, 1.5 and 2h respectively, pipette a certain amount of supernatant, dilute them by 100 times, and measure ...
Embodiment 2
[0047] Example 2 Study on the adsorption effect of Aureobasidium pullulans to heavy metals
[0048] 1. Preparation of culture medium
[0049] Strain activation medium (g / L): potato 200 sucrose 20 peptone 5 agar powder 20pH natural distilled water 1000mL 0.103MPa sterilized for 20min;
[0050] Seed medium (g / L): sucrose 50, Na 2 HPO 4 5.0, yeast extract 3.0, MgSO 4 ·7H 2 O0.2, (NH 4 ) 2 SO 4 0.6, NaCl0.1, pH6.0, distilled water 1000mL, 0.103Mpa, sterilization for 20min;
[0051] Fermentation medium (g / L): sucrose 50, Na 2 HPO 4 5.0, yeast extract 2.0, MgSO 4 ·7H 2 O0.4, (NH 4 ) 2 SO 4 0.6, NaCl0.1, pH6.5, distilled water 1000mL, 0.103MPa, sterilization for 20min.
[0052] 2. Preparation method of Aureobasidium pullulans
[0053] The activated bacteria were inoculated into fresh fermentation medium with an inoculum amount of 2%, and the pH was controlled at 6.0, 30° C., and 150 r / min shake flask cultured for 4 days. Centrifuge at 10,000 r for 5 min to collect th...
Embodiment 3
[0066] Example 3 Study on the adsorption effect of solid-state fermented wheat bran by Aureobasidium pullulans on heavy metals
[0067] 1. Preparation of culture medium
[0068] Strain activation medium (g / L): with embodiment 2;
[0069] Seed culture medium (g / L): with embodiment 2;
[0070] 2. Method for preparing adsorbent by solid-state fermentation of wheat bran by Aureobasidium pullulans
[0071] (1) Wheat bran is dried at 60°C and pulverized, passed through 100-mesh and 40-mesh sampling sieves respectively, and mixed with the lower part of 100-mesh and 40-mesh sampling sieves at a ratio of 1:3;
[0072] (2) Preparation of nutrient water: 0.1% NaH 2 PO 4 , 0.1% MgSO 4 , 0.01% VB1, adjust the pH to 6.0 with a HCl solution with a concentration of 0.1mol / L;
[0073] (3) After mixing the pulverized wheat bran mixture and nutrient water at a ratio of 1:1.5 (m / v), cooking at 121° C. for 0.5 h to obtain a pretreated wheat bran;
[0074] (4) Put the prepared wheat bran pre...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com