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A kind of treatment system and method for improving long-term adsorption performance of ammonia nitrogen adsorption material

An adsorption material and treatment system technology, which is applied in the field of treatment systems for improving the long-term adsorption performance of ammonia nitrogen adsorption materials, can solve the problems of unsatisfactory continuous use effect of ammonia nitrogen adsorption materials, and achieves reduction of operation and maintenance costs, remarkable effect, and improvement of long-term operation. effect of ability

Active Publication Date: 2020-12-22
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a treatment system and method for improving the long-term adsorption performance of ammonia nitrogen adsorption materials, so as to solve the problem of unsatisfactory continuous use effect of ammonia nitrogen adsorption materials in the prior art

Method used

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  • A kind of treatment system and method for improving long-term adsorption performance of ammonia nitrogen adsorption material
  • A kind of treatment system and method for improving long-term adsorption performance of ammonia nitrogen adsorption material

Examples

Experimental program
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Embodiment 1

[0034] A system for the treatment of ammonia nitrogen-containing wastewater or polluted water bodies, such as figure 1As shown, it includes an ammonia nitrogen adsorption unit and a regeneration unit. The ammonia nitrogen adsorption unit includes a sequentially connected water inlet pump 2, water inlet valve 3, a filter bed 1 filled with adsorption materials, and a vent valve group. The regeneration unit includes a sequentially connected regeneration liquid storage tank. 6 and the regeneration liquid inlet pump 7, the regeneration liquid storage tank 6 is equipped with regeneration liquid, the regeneration liquid inlet pump 7 is connected to the pipeline between the water inlet pump 2 and the water inlet valve 3, and the regeneration liquid storage tank 6 is also connected to the filter bed 1 and recovered from The regenerated liquid flowing out of the filter bed 1 after regenerating and treating the adsorbent material is also provided with a regenerated liquid return valve 8 b...

Embodiment 2

[0039] This embodiment is roughly the same as Embodiment 1. In this embodiment, the adsorption material is modified zeolite, the oxidizing agent is hypochlorous acid and sodium hypochlorite, the regeneration solution is potassium chloride solution, and the concentration is 1mol / L, and the precipitating agent is sodium hydroxide. , the ratio of the oxidizing agent to the regeneration liquid is 0.1, and the volume of the regeneration liquid is 0.8 times the volume of the filter bed.

Embodiment 3

[0041] This embodiment is roughly the same as Embodiment 1. In this embodiment, the adsorption material is molecular sieve, the oxidant is calcium hypochlorite, the regeneration solution is sodium chloride, the concentration is 100mol / L, the precipitating agent is calcium hydroxide, the oxidant and regeneration The ratio of liquid to liquid is 10, and the volume of the regeneration liquid is 10.0 times the volume of the filter bed.

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Abstract

The invention relates to a treatment system and a treatment method for improving the long-term adsorption performance of ammonia-nitrogen adsorption materials. The treatment system comprises an ammonia-nitrogen adsorption unit and a regeneration unit. The ammonia-nitrogen adsorption unit comprises a water inlet pump, a water inlet valve, a filter bed and an emptying valve group, the regeneration unit comprises a regeneration solution storage tank and a regeneration solution water inlet pump, the regeneration solution storage tank is filled with regeneration solution and is connected with the filter bed, regeneration solution which flows out of the filter bed after regeneration treatment is carried out on the adsorption materials can be recycled by the regeneration solution storage tank, aregeneration solution return valve is further arranged between the regeneration solution storage tank and the filter bed, and an oxidizing agent feeding machine is connected onto an outlet pipeline ofthe regeneration solution water inlet pump and is filled with oxidizing agents. Compared with the prior art, the treatment system and the treatment method have the advantages that the oxidizing agents and sodium chloride are combined with one another to carry out regeneration, interfering ions with influence on the adsorption performance are effectively removed by means of precipitation, and accordingly the regeneration capacity of the ammonia-nitrogen adsorption materials can be quickly and efficiently recovered; the regeneration solution can be in sufficient contact with the ammonia-nitrogen adsorption materials in cyclic regeneration modes, and accordingly thorough regeneration can be carried out.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a treatment system and a method for improving the long-term adsorption performance of ammonia nitrogen adsorption materials. Background technique [0002] Ammonia nitrogen is a kind of nutrient substance. If the concentration of ammonia nitrogen in the water body is too high, it will lead to eutrophication of the water body. When the ammonia nitrogen pollution is serious, it will lead to the deterioration of the water environment and form algal blooms, which will have a negative impact on ecological balance and biodiversity. At the same time, ammonia nitrogen also increases the cost and difficulty of water treatment. The ammonia nitrogen in the water body can react with chlorine to form chloramines, therefore, when the water body is disinfected, the ammonia nitrogen in the water body will increase the amount of disinfectant. In the presence of organic matter in the wate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/34C02F1/28
CPCB01J20/3408B01J20/3475C02F1/281C02F2101/16
Inventor 周振张伟庞红建郑月羌佳鑫黄景陈柳宇项学文
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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