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Porous adsorbent for adsorbing and biologically degrading petrochemical wastewater and preparation method

A porous adsorbent, petrochemical technology, applied in chemical instruments and methods, biological water/sewage treatment, mining wastewater treatment, etc., can solve the problem of lack of adsorption materials and achieve the effect of simple production process

Inactive Publication Date: 2015-04-08
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, there is still a lack of adsorption materials for the treatment of phosphorus-deficient petrochemical wastewater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 100mL of NH with a concentration of 0.35mol / L 4 HCO 3 solution and 100 mL of NH with a concentration of 0.62 mol / L 4 h 2 PO 4 Mix evenly to obtain mixed solution A1, and then use NH with a concentration of 0.01mol / L 4 OH solution and concentration are 0.01mol / L hydrochloric acid solution to adjust the pH value of mixed solution A1 to 9.0 to obtain mixed solution A; 200mL mixed solution A is slowly added dropwise to 300mL concentration of 0.025mol / L Ca( NO 3 ) 2 solution to obtain a mixed solution B; add concentrated HNO dropwise to the mixed solution B 3 Until clarification, mixed solution C is obtained; the pH value of mixed solution C is adjusted to 3.5 with NaOH solution with a concentration of 0.01mol / L and hydrochloric acid solution with a concentration of 0.01mol / L to obtain mixed solution D; add 100 mL of NH with a concentration of 1.1mol / L 4 Cl aqueous solution, mixed uniformly to obtain mixed solution E; to mixed solution E, adding 50mL concentration of...

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Abstract

The invention discloses a porous absorbent for absorbing and biologically degrading petrochemical wastewater and a preparation method. The preparation method comprises the following steps: an NH4HCO3 solution, an NH4H2PO4 solution, a Ca(NO3)2 solution, an NH4OH solution, a hydrochloric acid solution, an NH4Cl aqueous solution and an ethylenediaminetetraacetic acid calcium-potassium solution are prepared into a mixed liquor F; a styrene-chloroform solution, a divinylbenzene-chloroform solution and an azodiisobutyronitrile-chloroform solution are prepared into a mixed liquor M; the mixed liquor F is dropwise added into the mixed liquor M to obtain a mixed liquor O; the mixed liquor O is dropwise added into a poval solution to obtain a mixed liquor P; the poval solution is added into the mixed liquor P for centrifugal separation to obtain a porous absorbent with the nitrogen and phosphorus slow release function, and the porous absorbent is cultured in a hydrocarbon degrading bacteria culture solution for 24 hours and taken out for air drying to obtain the finished product. The manufacturing process is simple, and the prepared porous absorbent has the functions of phosphorus slow release, absorption and biodegradation on petroleum hydrocarbon in petrochemical wastewater.

Description

technical field [0001] The invention belongs to the technical field of petrochemical wastewater treatment, in particular to a porous adsorbent for adsorbing and biodegrading petrochemical wastewater and a preparation method thereof. Background technique [0002] Petrochemical wastewater involves many industries such as energy, minerals, and chemicals. Adsorption biodegradation, as a combined water treatment technology, plays an important role in wastewater treatment. At present, the most commonly used adsorption materials for adsorbing organic pollutants can be divided into physical adsorption materials, chemical adsorption materials and biological adsorption materials. Among them, physical adsorption materials include activated carbon, molecular sieve, zeolite, activated clay and clay ore and other solids with high specific surface area, which have the advantages of high extraction efficiency and strong enrichment function, but also have poor stability, easy desorption, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26C02F3/34C02F103/10
Inventor 丁爱中谢恩豆俊峰程莉蓉郑蕾许新宜
Owner BEIJING NORMAL UNIVERSITY
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