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Low-cost adsorbent, and preparation method and application thereof

An adsorbent and low-cost technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of unsatisfactory treatment effect and high cost, and achieve low treatment cost and high load rate , Ease of elution

Inactive Publication Date: 2018-12-14
WUHU XINDA LANDSCAPING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing domestic sewage is generally chemically treated with sewage treatment agents, but the cost is high and the treatment effect is not satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a low-cost adsorbent, comprising the steps of:

[0023] S1. Add 50kg of sucrose to 150kg of hydrochloric acid with a concentration of 1mol / L and stir for 40min at a stirring temperature of 85°C, filter, dry, and carbonize in a tube furnace for 14min at a carbonization temperature of 880°C. Stir the mol / L sodium aluminate solution evenly, add a sulfuric acid solution with a concentration of 10wt% under stirring until the pH of the system is 9-9.4, filter, and wash the precipitate to obtain the first material;

[0024] S2. Stir 40 kg of the first material, 12 kg of humic acid, 0.4 kg of polyethylene glycol, and 140 kg of an ethanol solution with a concentration of 11 wt % for 30 minutes at a stirring temperature of 145° C., filter, dry in vacuum at 150° C. for 8 hours, and pulverize to obtain the second material;

[0025] S3. Add 20kg of coconut shell, 20kg of straw, 10kg of bamboo charcoal powder, and 20kg of sucrose to 240kg of concentrated sulfur...

Embodiment 2

[0028] A method for preparing a low-cost adsorbent, comprising the steps of:

[0029] S1. Add 60kg of sucrose into 130kg of hydrochloric acid with a concentration of 1.4mol / L and stir for 20min at a stirring temperature of 95°C, filter, dry, and send it into a tube furnace for carbonization for 6min at a carbonization temperature of 960°C, cool down, pulverize, and add 100kg of Stir the 1.6mol / L sodium aluminate solution evenly, add a sulfuric acid solution with a concentration of 6wt% under stirring until the pH of the system is 9-9.4, filter, and wash the precipitate to obtain the first material;

[0030] S2. Stir 60kg of the first material, 6kg of humic acid, 0.8kg of polyethylene glycol, and 120kg of an ethanol solution with a concentration of 11-14wt% for 30 minutes at a stirring temperature of 145° C., filter, vacuum-dry at 150° C. for 8 hours, and pulverize to obtain the second materials;

[0031] S3. Add 20kg of coconut shell, 20kg of straw, 10kg of bamboo charcoal po...

Embodiment 3

[0034] A method for preparing a low-cost adsorbent, comprising the steps of:

[0035] S1. Add 57kg of sucrose to 135kg of hydrochloric acid with a concentration of 1.3mol / L and stir for 25min at a stirring temperature of 92°C, filter, dry, and send it into a tube furnace for carbonization for 8min at a carbonization temperature of 940°C, cool down, pulverize, and add 110kg of Stir the 1.5mol / L sodium aluminate solution evenly, add a sulfuric acid solution with a concentration of 7wt% under stirring until the pH of the system is 9-9.4, filter, and wash the precipitate to obtain the first material;

[0036] S2. Stir 55kg of the first material, 8kg of humic acid, 0.7kg of polyethylene glycol, and 125kg of an ethanol solution with a concentration of 13wt% for 22min at a stirring temperature of 152°C, filter, vacuum dry at 143°C for 11h, and pulverize to obtain the second material;

[0037] S3, add 28kg coconut shell, 13kg straw, 18kg bamboo charcoal powder, 13kg sucrose to 160kg c...

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Abstract

The invention discloses a preparation method for a low-cost adsorbent. The preparation method comprises the following steps: adding sucrose into hydrochloric acid, successively carrying out stirring,filtering and drying, conveying a dried product into a tubular furnace for carbonization, then carrying out cooling and pulverizing, adding a sodium aluminate solution, carrying out stirring for uniform mixing, adding a sulfuric acid solution under stirring until the pH value of a system is 9-9.4, performing filtering and washing a precipitate so as to obtain a first material; stirring the first material, humic acid, polyethylene glycol and an ethanol solution, and successively carrying out filtering, vacuum drying and crushing to obtain a second material; adding coconut shells, straw, bamboocharcoal powder and sucrose into concentrated sulfuric acid, successively carrying out stirring, filtering, washing and drying, then adding beta-type hemihydrate gypsum and sodium ferrate, and carrying out uniform mixing to obtain a third material; and uniformly mixing polyacrylamide, polyethyleneimine, the second material, alum, light calcium carbonate, calcium chloride and the third material, then adding potassium carbonate, carrying out uniform mixing, and then carrying out drying so as to obtain the low-cost adsorbent.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a low-cost adsorbent and its preparation method and application. Background technique [0002] With the continuous improvement of people's living standards, human water consumption is also increasing, and domestic sewage is also increasing. If sewage is discharged into rivers in our country without treatment, it will inevitably pollute nature. Therefore, how to properly treat sewage has become an issue. become a matter of concern for the survival of future generations. The existing domestic sewage is generally chemically treated with sewage treatment agents, but the cost is high and the treatment effect is not satisfactory. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a low-cost adsorbent and its preparation method and application, which are environmentally friendly and have excellent ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/20B01J20/22B01J20/24B01J20/265B01J20/28054C02F1/288
Inventor 晏继斌
Owner WUHU XINDA LANDSCAPING GRP
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