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Multifunctional adsorbent and preparation method for enhanced biodegradation treatment of petrochemical wastewater

A petrochemical and biodegradation technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problem of lack of adsorption materials, and achieve the effect of simple production process

Inactive Publication Date: 2016-05-11
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of adsorbent materials for petrochemical wastewater treatment in which nitrogen and phosphorus are deficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 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 multifunctional adsorbent for reinforced biodegradation treatment of petrochemical wastewater and a preparation method thereof. The preparation method comprises the following steps: preparing a NH4HCO3 solution, a NH4H2PO4 solution, a Ca(NO3)2 solution, a NH4OH solution, a hydrochloric acid solution, a NH4Cl water solution and a calcium potassium ethylenediamine tetraacetate solution into a mixed solution F; preparing urea and formalin into a mixed solution L; preparing a styrene chloroformic solution, a divinylbenzene chloroformic solution and an azodiisobutyronitrile chloroformic solution into a mixed solution M; dropwisely adding the mixed solution L into the mixed solution M to obtain a mixed solution N; dropwisely adding the mixed solution F into the mixed solution N to obtain a mixed solution O; dropwisely adding the mixed solution O into a polyvinyl alcohol solution to obtain a mixed solution P; adding the polyvinyl alcohol solution into the mixed solution P, and centrifuging to obtain the multifunctional adsorbent with function of slowing release of nitrogen and phosphorus; and culturing in a petroleum hydrocarbon degrading bacterium culture solution for 24 hours, taking out, and drying in air. The manufacturing technique is simple; and the prepared multifunctional adsorbent has the functions of slowing release of nitrogen and phosphorus and adsorbing and biodegrading petroleum hydrocarbons.

Description

technical field [0001] The invention belongs to the technical field of petrochemical wastewater treatment, in particular to a multifunctional adsorbent for enhanced biodegradation treatment of petrochemical wastewater and a preparation method. 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 deso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 豆俊峰秦伟丁爱中许新宜程莉蓉
Owner BEIJING NORMAL UNIVERSITY
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