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Medical stone heavy metal adsorbent and preparation method thereof

A medical stone and heavy metal technology, applied in the field of environmental governance, can solve problems such as high operating costs, secondary pollution, and high energy consumption, and achieve the effects of strong practicability, strong adsorption capacity, and large adsorption capacity

Inactive Publication Date: 2015-07-29
安徽省中日农业环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation method, ion exchange method, membrane separation method, etc. These methods usually have problems such as large investment, high energy consumption, high operating cost, and easy to produce secondary pollution, so their application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the preparation of medical stone heavy metal adsorbent

[0020] A kind of medical stone heavy metal adsorbent is prepared from the component raw materials of following weight (kg):

[0021] Medical stone 25, kapok fiber 4, tapioca starch 4, sodium carboxymethyl cellulose 3, carboxymethyl chitosan 1.5, maltitol 1.5, sodium alginate 1.5, sodium starch octenyl succinate 0.4, cocamide Propyl betaine 0.15, additive 7, water 50;

[0022] Wherein, the auxiliary agent is made of the following raw materials in parts by weight:

[0023] Fresh tea leaves 25, fresh pine needles 4, fresh mulberry leaves 4, citric acid 3, oxalic acid 0.8, sodium citrate 1.5, sodium lauroyl sarcosinate 0.8, water 90;

[0024] The preparation method of auxiliary agent is:

[0025] Clean and crush fresh tea leaves, fresh pine needles and fresh mulberry leaves, mix them with sodium citrate, and grind them evenly, first add citric acid, oxalic acid and water and stir for 6 hours at 90°C a...

Embodiment 2

[0029] Embodiment 2: to the adsorption effect of heavy metal lead and copper

[0030] Take by weighing sorbent material 0.5g among the embodiment 1, join 1L heavy metal lead ion concentration in the water of 0.1g / L, in room temperature adsorption 1h, detect the concentration of remaining lead ion in the solution, record adsorption capacity and be 56.4mg / L g.

[0031] Take by weighing sorbent material 0.5g among the embodiment 1, join 1L heavy metal copper ion concentration and be the water of 0.1g / L, at room temperature, absorb 1h, detect the concentration of remaining copper ion in the solution, record that adsorption capacity is 52.3mg / L g.

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Abstract

The invention discloses a medical stone heavy metal adsorbent, which is characterized by being prepared from the following ingredients in parts by weight: 20 to 30 parts of medical stone, 3 to 5 parts of kapok fiber, 3 to 5 parts of tapioca starch, 2 to 4 parts of sodium carboxymethylcellulose, 1 to 2 parts of carboxymethyl chitosan, 1 to 2 parts of maltitol, 1 to 2 parts of sodium alginate, 0.3 to 0.5 part of starch sodium octenylsuccinate, 0.1 to 0.2 part of cocamidopropyl betaine, 6 to 8 parts of auxiliaries and 40 to 60 parts of water. The medical stone heavy metal adsorbent has the characteristics that the metal combination and adsorption capacity is high, and the adsorption capacity is great; meanwhile, certain effects of organic pollutant removal and oil removal are realized, the safety is realized, the environment is protected, non-toxicity or harmlessness are realized, the secondary pollution is not introduced into environment in the wastewater treatment process, and the practicability is high.

Description

technical field [0001] The invention relates to the field of environmental treatment, in particular to a medical stone heavy metal adsorbent and a preparation method thereof. Background technique [0002] With the development of the global economy and society, environmental pollution is becoming more and more serious. Industrial wastewater, as the main source of environmental pollution, has been a major problem that has plagued countries all over the world for a long time. Heavy metal ions in industrial wastewater have strong carcinogenic, teratogenic, and mutagenic effects, which pose a serious threat to human health and the ecological environment. Therefore, it is very important to strictly control the pollution of heavy metal wastewater. [0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation, ion exchange, membrane separation, etc. These methods usually have problems such as large investment, high energy consumption, high opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30
Inventor 章云
Owner 安徽省中日农业环保科技有限公司
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