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Arsenic adsorption treatment agent and preparation method thereof

A technology of adsorption treatment and triethylamine, applied in the direction of adsorption water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of low recycling rate, low adsorption capacity, limitations, etc., and achieve easy industrial production , good flocculation performance, simple preparation method

Inactive Publication Date: 2016-01-27
苏州书瑞环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing arsenic adsorbents are limited in practical application because of their high price, low adsorption capacity, low recycling rate, difficult regeneration or unsatisfactory use effect after regeneration.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 50kg of epichlorohydrin, 8kg of hydroxymethylmethylcellulose, 5kg of diatomaceous earth, 2kg of ferrous sulfate, 2kg of sodium starch phosphate, and 1kg of sodium alginate, and stir evenly;

[0026] (2) Slowly add 1 kg of ethylenediamine and 0.5 kg of triethylamine, stir at 45° C. for 5 minutes, adjust the pH to 7.6, and obtain an arsenic adsorption treatment agent.

[0027] The performance test results of the prepared arsenic adsorption treatment agent are shown in Table 1.

Embodiment 2

[0029] (1) Weigh 60kg of epichlorohydrin, 11kg of hydroxymethylmethyl cellulose, 8kg of diatomaceous earth, 4kg of ferrous sulfate, 3kg of sodium starch phosphate, 3kg of sodium alginate, 1kg of hydrogenated castor oil and nanometer aluminum oxide 1kg, stir evenly;

[0030] (2) Slowly add 2 kg of ethylenediamine and 1 kg of triethylamine, stir at 55° C. for 10 minutes, adjust the pH to 7.8, and obtain an arsenic adsorption treatment agent.

[0031] The performance test results of the prepared arsenic adsorption treatment agent are shown in Table 1.

Embodiment 3

[0033] (1) Weigh 55kg of epichlorohydrin, 9kg of hydroxymethylmethylcellulose, 6kg of diatomaceous earth, 3kg of ferrous sulfate, 2.5kg of sodium starch phosphate, 2kg of sodium alginate, 0.5kg of hydrogenated castor oil and nano trioxide Dialuminum 0.5kg, stir evenly;

[0034] (2) Slowly add 1.5 kg of ethylenediamine and 0.0 kg of triethylamine, stir at 50° C. for 8 minutes, adjust the pH to 7.7, and obtain an arsenic adsorption treatment agent.

[0035] The performance test results of the prepared arsenic adsorption treatment agent are shown in Table 1.

[0036] The arsenic adsorption treatment agent of embodiment 1-3 is used for sewage treatment: when it is used in the domestic sewage that COD is 600mg / L, total arsenic content is 2.8mg / L, the consumption of arsenic adsorption treatment agent is 0.05g / L, put it into the sewage and stir it at 300r / min for 6 hours to achieve a good treatment effect. Please refer to Table 1 for the specific treatment results.

[0037] Table ...

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PUM

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Abstract

The invention discloses an arsenic adsorption treatment agent and a preparation method thereof. The arsenic adsorption treatment agent comprises components in parts by weight as follows: 50-60 parts of epoxy chloropropane, 8-11 parts of hydroxymethyl methylcellulose, 5-8 parts of diatomite, 2-4 parts of ferrous sulfate, 2-3 parts of starch sodium phosphate, 1-3 parts of sodium alginate, 1-2 parts of ethylene diamine and 0.5-1 part of triethylamine. The invention further provides the preparation method of the arsenic adsorption treatment agent.

Description

technical field [0001] The invention belongs to the field of water treatment materials, in particular to an arsenic adsorption treatment agent and a preparation method thereof. Background technique [0002] Currently, arsenic is often incorporated into alloys or used to make pesticides, medicines and glass. Arsenic exists widely in nature. Arsenic pollution has become very common, and my country has also become a country with serious arsenic pollution. Once arsenic pollution is formed, it will enter the human body or other organisms through the food chain, groundwater, and surface water, seriously endangering human health and the entire ecological environment. [0003] At present, the commonly used methods for removing arsenate or arsenite in water include precipitation method, membrane treatment method, adsorption method, biological method, ion exchange method, oxidation method and electrocoagulation method. Among them, the adsorption method is simple, easy to remove, and...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/58C02F1/52C02F1/56C02F1/54
Inventor 魏锋
Owner 苏州书瑞环保科技有限公司
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