Nitrogen modified nanometer titanium dioxide and Phanerochete chrysosporium composite adsorbent, and its preparation method and application
A technology of nano-titanium dioxide and chrysosporium plain leather, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of difficult recovery, easy loss, poor effect, etc., to improve treatment efficiency, Safe and environmentally friendly recycling, solving the effect of easy loss
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[0032] Example 1 :
[0033] The nitrogen-modified nano-titanium dioxide and Phanerochaete chrysosporium composite adsorbent of the present invention includes Phanerochaete chrysosporium fungus balls, and the hyphae of the Phanerochaete chrysosporium fungi are loaded with nitrogen-modified nano titanium dioxide and entangled with seaweed Calcium acid and nitrogen modified nano-titanium dioxide are mainly distributed inside the Phanerochaete chrysosporium fungus ball; calcium alginate is mainly distributed on the surface of the Phanerochaete chrysosporium fungus ball. The composite adsorbent is in the form of microspheres, the diameter of the microspheres is 1cm-2cm, and the moisture content is 97%±0.5%.
[0034] The nitrogen-modified nano titanium dioxide and Phanerochaete chrysosporium composite adsorbent of the present invention is prepared by the following method:
[0035] 1. Preparation of nitrogen-modified nano-titanium dioxide by sol-gel method: first weigh 0.0705g of urea int...
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[0045] Example 2 :
[0046] The nitrogen-modified nano-titanium dioxide and Phanerochaete chrysosporium composite adsorbent of the present invention includes Phanerochaete chrysosporium fungus balls, and the hyphae of the Phanerochaete chrysosporium fungi are loaded with nitrogen-modified nano titanium dioxide and entangled with seaweed Calcium acid and nitrogen modified nano-titanium dioxide are mainly distributed inside the Phanerochaete chrysosporium fungus ball; calcium alginate is mainly distributed on the surface of the Phanerochaete chrysosporium fungus ball. The composite adsorbent is in the form of microspheres, the diameter of the microspheres is 1cm-2cm, and the moisture content is 97%±0.5%.
[0047] The nitrogen-modified nano titanium dioxide and Phanerochaete chrysosporium composite adsorbent of the present invention is prepared by the following method:
[0048] 1. The method of Example 1 is used to prepare nitrogen-modified nanometer titanium dioxide.
[0049] 2. Take ...
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[0053] Example 3 :
[0054] The nitrogen-modified nano titanium dioxide and Phanerochaete chrysosporium composite adsorbent of the present invention can be used to remove cadmium and 2,4-dichlorophenol (2,4-DCP) in wastewater, including the following steps:
[0055] 1. The initial concentration of 2,4-dichlorophenol is 10mg / L, and the initial concentration of cadmium is 2mg / L, 5mg / L, 10mg / L, 20 mg / L, 40mg / L, 80mg / L, 100mg / L. , The 8 groups of 120mg / L simulated wastewater are each 100ml, and the pH is adjusted to 6.
[0056] 2. Add 3 g of the nitrogen-modified nano-titanium dioxide and Phanerochaete chrysosporium composite adsorbent prepared in Example 1 to the above 8 groups of simulated wastewater, and place them in a shaking incubator at 37°C and 150 rmp / min. After reacting for 60 hours, the solid phase and the liquid phase are separated after standing to complete the adsorption.
[0057] The residual amounts of cadmium and 2,4-dichlorophenol in the treated wastewater samples were...
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