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Composite wastewater treatment adsorbent and preparation method thereof

A wastewater treatment and adsorbent technology, which is used in water treatment parameter control, water/sewage treatment, adsorbed water/sewage treatment, etc. It can solve problems such as human health and environmental hazards, and achieve good treatment effect and decolorization effect.

Inactive Publication Date: 2016-12-07
樊之雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these wastewaters are not treated up to standard and then discharged directly into natural water bodies, it will cause great harm to human health and the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A composite wastewater treatment adsorbent, prepared from the following components in parts by weight: 2 parts of sepiolite, 1 part of rectorite, 1 part of attapulgite, 2 parts of carboxymethyl chitosan, and 1 part of nano silicon dioxide 2 parts of corn germ powder, 1 part of coconut shell powder, 1 part of guar gum, 3 parts of sodium borohydride, 1.5 parts of boric acid, 20 parts of absolute ethanol, 2 parts of acetic acid, and 60 parts of deionized water.

[0023] The preparation method of above-mentioned composite wastewater treatment adsorbent is:

[0024] (1) Mix sepiolite, rectorite and attapulgite, put them in an oven to dry at 50°C, take them out, put them in a grinder and grind them at a speed of 300r / min for 3 hours, pass through a 120-mesh sieve, and remove large particles;

[0025] (2) Put it into a muffle furnace and calcinate at a temperature of 400°C for 3 hours;

[0026] (3) After cooling, add acetic acid and 20 parts of deionized water, put it in a w...

Embodiment 2

[0032] A composite wastewater treatment adsorbent, prepared from the following components in parts by weight: 3 parts of sepiolite, 1.5 parts of rectorite, 1.3 parts of attapulgite, 3 parts of carboxymethyl chitosan, 1.2 parts of nano silicon dioxide 3 parts of corn germ powder, 1.2 parts of coconut shell powder, 1.3 parts of guar gum, 3.5 parts of sodium borohydride, 1.6 parts of boric acid, 25 parts of absolute ethanol, 2.5 parts of acetic acid, and 70 parts of deionized water.

[0033] The preparation method of above-mentioned composite wastewater treatment adsorbent is:

[0034] (1) Mix sepiolite, rectorite and attapulgite, put them in an oven to dry at 60°C, take them out, put them in a grinder and grind them at a speed of 320r / min for 4 hours, pass through a 120-mesh sieve, and remove large particles;

[0035] (2) Put it into a muffle furnace and calcinate at a temperature of 450°C for 3.5 hours;

[0036] (3) After cooling, add acetic acid and 25 parts of deionized wat...

Embodiment 3

[0042] A composite wastewater treatment adsorbent, prepared from the following components in parts by weight: 3.5 parts of sepiolite, 2 parts of rectorite, 1.5 parts of attapulgite, 3.5 parts of carboxymethyl chitosan, and 1.5 parts of nano silicon dioxide 3.5 parts of corn germ powder, 1.5 parts of coconut shell powder, 1.5 parts of guar gum, 4 parts of sodium borohydride, 1.75 parts of boric acid, 30 parts of absolute ethanol, 3 parts of acetic acid, and 80 parts of deionized water.

[0043] The preparation method of above-mentioned composite wastewater treatment adsorbent is:

[0044] (1) Mix sepiolite, rectorite and attapulgite, put them in an oven to dry at 65°C, take them out, put them in a grinder and grind them at a speed of 350r / min for 4 hours, pass through a 120-mesh sieve, and remove large particles;

[0045] (2) Put it in a muffle furnace and calcine at a temperature of 500°C for 3.5 hours;

[0046] (3) After cooling, add acetic acid and 30 parts of deionized wa...

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Abstract

The invention provides a composite wastewater treatment adsorbent and a preparation method thereof. The method includes steps: (1) mixing sepiolite, rectorite and attapulgite, drying, grinding, and filtering through a 120-mesh screen to remove large particles; (2) calcining in a muffle furnace; (3) cooling, adding acetic acid and deionized water, and stirring; (4) filtering, cleaning with distilled water, drying, grinding, and filtering through a 200-mesh screen to remove large particles; (5) adding nano silicon dioxide, maize germ powder, coconut shell powder, guar gum and deionized water, stirring, and well mixing to obtain globules; (6) drying the globules, and immersing in a solution of boric acid and deionized water; (7) taking the globules out, and immersing in a solution of sodium borohydride and absolute ethyl alcohol. The composite wastewater treatment adsorbent is high in COD removal rate and Cu<2+> and Pb<2+> removal rate, effective in treatment of wastewater containing heavy metal ions and excellent in decoloration effect.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a composite waste water treatment adsorbent and a preparation method thereof. Background technique [0002] With the rapid development of modern industry and the rapid increase of population, the energy problem has become more and more serious. At the same time, the environmental pollution problem is also intensified, and the water resource crisis has become a worldwide problem that needs to be solved urgently. With the rapid development of industry, agriculture and cities, a large amount of pollutants are discharged, natural water bodies have been seriously polluted, and the utilization rate of water resources has declined, which has exacerbated the problem of water shortage in my country. Water pollution sources include industrial pollution sources, agricultural pollution sources and domestic pollution sources. According to different pollutants, water pollution is mainly di...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/30B01J20/24
CPCC02F1/288B01J20/0248B01J20/10B01J20/103B01J20/12B01J20/16B01J20/20B01J20/24C02F2101/20C02F2101/36C02F2101/38C02F2101/40C02F2209/08
Inventor 樊之雄
Owner 樊之雄
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