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Heavy metal adsorbent prepared by cactus and preparation method for heavy metal adsorbent

A cactus and heavy metal technology, applied in the field of environmental treatment, can solve the problems of 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: 2015-05-20
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 heavy metal adsorbent

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

[0021] Cactus 55, sawdust 12, shell powder 8, bean cake powder 4, lotus root powder 3, guar gum 1.5, carboxymethyl chitosan 1.5, tannic acid 0.45, calcium chloride 3, potassium sorbate 0.15, additive 5, 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 and 400r / min, then add sodium lauroyl sarcosi...

Embodiment 2

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

[0030] Take by weighing adsorbent 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 45.6mg / L g.

[0031] Take by weighing 0.5 g of the adsorbent in Example 1, add it to 1L of heavy metal copper ion concentration in water of 0.1 g / L, absorb at room temperature for 1 h, detect the concentration of remaining copper ion in the solution, and record the adsorption capacity as 72.1 mg / L. g.

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Abstract

The invention discloses a heavy metal adsorbent prepared by cactus. The heavy metal adsorbent is characterized by being prepared from the following raw materials in parts by weight: 50-60 parts of cactuses, 10-15 parts of sawdust, 5-10 parts of shell powder, 3-5 parts of soya-bean cake powder, 2-4 parts of lotus powder, 1-2 parts of guar gum, 1-2 parts of carboxymethyl chitosan, 0.3-0.5 part of tannin, 2-4 parts of calcium chloride, 0.1-0.2 part of potassium sorbate, 4-6 parts of auxiliaries and 40-60 parts of water. The heavy metal adsorbent disclosed by the invention has the characteristics of being strong in heavy metal bonding and adsorbing capacity, large in adsorbing capacity, safe and environmentally friendly, non-toxic and harmless, is free of secondary pollution to the environment in a wastewater treatment process, and strong in practicability.

Description

technical field [0001] The invention relates to the field of environmental management, in particular to a heavy metal adsorbent prepared from cactus 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, hi...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J20/30B01J2220/485C02F1/286C02F2101/20
Inventor 章云张娃妮张贝尼
Owner 安徽省中日农业环保科技有限公司
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