Method for preparing phosphorus removal adsorbent by malic acid modification

A phosphorus adsorbent, malic acid technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low phosphorus removal effect and high cost of consumable materials, and achieve strong adsorption effect, cost saving, low cost effect

Inactive Publication Date: 2019-02-01
YUNCHENG UNIVERISTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the technical problems of high cost of consumable materials and low phosphorus removal effect in the existing method for treating phosphorus pollution, and provide a method for preparing a phosphorus removal adsorbent by modifying malic acid

Method used

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  • Method for preparing phosphorus removal adsorbent by malic acid modification
  • Method for preparing phosphorus removal adsorbent by malic acid modification
  • Method for preparing phosphorus removal adsorbent by malic acid modification

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of method utilizing malic acid modification in the present embodiment to prepare phosphorus removal adsorbent, its specific steps are as follows:

[0031] 1) Selection of materials: select well-preserved and undeteriorated poplar leaves as raw materials; cut the poplar leaves into flakes with scissors;

[0032] 2) Cooking: Clean the poplar leaves and boil them for 20-30 minutes at 100°C in an electromagnetic oven;

[0033] 3) Preparation of malic acid solution: Weigh 67.045g of malic acid and dilute it to a 500mL volumetric flask to prepare a 1mol / L malic acid solution, add water to dilute to 0.7mol / L;

[0034] 4) Soaking: Soak poplar leaves in 0.7mol / L malic acid solution and make a mark, then put them in a water bath at 80°C for 60 minutes at a constant temperature, heat them in the water bath, and then rinse with running water until neutral;

[0035] 5) Soaking in absolute ethanol: soak the treated poplar leaves in absolute ethanol for 24 hours and rinse them...

Embodiment 2

[0069] A kind of method utilizing malic acid modification in the present embodiment to prepare phosphorus removal adsorbent, its specific steps are as follows:

[0070] 1) Selection of materials: select well-preserved and undeteriorated poplar leaves as raw materials; cut the poplar leaves into flakes with scissors;

[0071] 2) Cooking: Clean the poplar leaves and boil them for 20-30 minutes at 100°C in an electromagnetic oven;

[0072] 3) Preparation of malic acid solution: Weigh 67.045g of malic acid and dilute it to a 500mL volumetric flask to prepare a 1mol / L malic acid solution, dilute with water to 0.8mol / L;

[0073] 4) Soaking: Soak poplar leaves in 0.8mol / L malic acid solution and make a mark, then put them in a water bath at 60°C for 50 minutes at a constant temperature, heat them in the water bath, and then rinse with running water until neutral;

[0074] 5) Soaking in absolute ethanol: soak the treated poplar leaves for 30 hours in absolute ethanol and rinse them 3...

Embodiment 3

[0079] A kind of method utilizing malic acid modification in the present embodiment to prepare phosphorus removal adsorbent, its specific steps are as follows:

[0080] 1) Selection of materials: select well-preserved and undeteriorated poplar leaves as raw materials; cut the poplar leaves into flakes with scissors;

[0081] 2) Cooking: Clean the poplar leaves and boil them for 20-30 minutes at 100°C in an electromagnetic oven;

[0082] 3) Preparation of malic acid solution: Weigh 67.045g of malic acid and dilute it to a 500mL volumetric flask to prepare a 1mol / L malic acid solution, add water to dilute to 0.5mol / L;

[0083] 4) Soaking: Soak poplar leaves in 0.5mol / L malic acid solution and make a mark, then put them in a water bath at 70°C for 40 minutes at a constant temperature, heat them in the water bath, and then rinse with running water until neutral;

[0084] 5) Soaking in absolute ethanol: soak the treated poplar leaves in absolute ethanol for 20 hours and rinse them...

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Abstract

The invention relates to a method for preparing a phosphorus removal adsorbent by malic acid modification, belongs to production methods of environment-friendly original ecological green bio-adsorbents, and aims to solve the technical problems of high consumable material cost and low phosphorus removal effects of an existing phosphorus pollution treatment method. The method for preparing the phosphorus removal adsorbent by malic acid modification particularly includes the steps: 1) raw material selection; 2) stewing; 3) malic acid solution preparation; 4) soaking; 5) absolute ethyl alcohol soaking; 6) filtering and adjusting of pH (potential of hydrogen) to be neutral; 7) drying; 8) crushing and sieving. The method has the advantages that adsorption effects are good, cost is low, the adsorbent can be recycled and repeatedly used, and the like.

Description

technical field [0001] The invention relates to a method for preparing a phosphorus-removing adsorbent by modifying malic acid, which belongs to an environment-friendly production method of original ecological green biological adsorbent. Background technique [0002] The rapid development of industry and the extensive use of chemical products have significantly increased the content of mineral elements in water. The discharge of urban domestic sewage, the discharge of industrial wastewater, the precipitation of rainwater and the life activities of microorganisms in the water cause a large amount of phosphorus enrichment in the water body, and the eutrophication of the water body is becoming more and more serious. Excess nutrients in the water will cause a large number of plants to multiply, and underwater animals and plants will die due to lack of oxygen. In severe cases, water pollution will occur, and even the ecological balance in the water will be destroyed. [0003] Th...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/10
CPCB01J20/24C02F1/286C02F2101/105
Inventor 陈莉
Owner YUNCHENG UNIVERISTY
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