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A kind of cadmium polluted cinnamon green washing agent and preparation method thereof

An eluent and cadmium pollution technology are applied in the field of cadmium-contaminated cinnamon green eluent and its preparation, which can solve the problems of insufficient material availability, insufficient activation efficiency, low biodegradability and the like, and achieve good application. Prospect, efficient rinsing, simple process effect

Active Publication Date: 2021-04-20
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention mainly solves the problems that the existing cadmium-contaminated cinnamon soil green eluents are complicated to make, low in biodegradability, not good enough in material availability, not cheap enough in price, and not high enough in activation efficiency, and opens up the recycling of enteromorpha tidal waste take advantage of new ways

Method used

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  • A kind of cadmium polluted cinnamon green washing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1, cadmium-contaminated cinnamon soil green eluent comprises the following components by weight: 45 parts of enteromorpha extract, 45 parts of spinach extract, 2 parts of anhydrous calcium chloride;

[0012] Preparation of Enteromorpha extract: first wash and dry Enteromorpha to make a dry powder with a particle size of 0.125mm, then mix the dry powder of Enteromorpha with water at a weight ratio of 1:30, and stir and react at 80°C for 4 hours, the Enteromorpha extract was obtained;

[0013] Preparation of spinach extract: first wash and dry spinach to make a dry powder with a particle size of 0.125mm, then mix the spinach dry powder with water at a weight ratio of 1:3, and stir and react at 70°C for 2 hours to prepare Get spinach extract;

[0014] Enteromorpha extract, spinach extract, and anhydrous calcium chloride were mixed at a ratio of 45:45:2 by weight, stirred and reacted at 100°C for 2 hours, and cooled to obtain a green leaching agent for cinnamon ...

Embodiment 2

[0015] Embodiment 2, cadmium-contaminated cinnamon soil green eluent comprises the following components by weight: 47 parts of Enteromorpha extract, 47 parts of spinach extract, 6 parts of anhydrous calcium chloride;

[0016] Preparation of Enteromorpha extract: first wash and dry Enteromorpha to make a dry powder with a particle size of 0.106mm, then mix the dry powder of Enteromorpha with water at a weight ratio of 1:50, and stir at 85°C for 3 hours, the Enteromorpha extract was obtained;

[0017] Preparation of spinach extract: first wash and dry spinach to make a dry powder with a particle size of 0.106 mm, then mix the spinach dry powder with water at a weight ratio of 1:5, and stir and react at 75°C for 1.5 hours to prepare Get spinach extract;

[0018] Enteromorpha extract, spinach extract, and anhydrous calcium chloride are mixed at a ratio of 47:47:6 by weight, stirred and reacted at 105°C for 1.5 hours, and cooled to prepare a green leaching agent for cinnamon soil ...

Embodiment 3

[0019] Embodiment 3, cadmium-contaminated cinnamon soil green eluent comprises the following components by weight: 49 parts of Enteromorpha extract, 49 parts of spinach extract, 10 parts of anhydrous calcium chloride;

[0020] Preparation of Enteromorpha extract: first wash and dry Enteromorpha to make a dry powder with a particle size of 0.075mm, then mix the dry powder of Enteromorpha with water at a weight ratio of 1:70, and stir at 90°C for 2 hours, the Enteromorpha extract was obtained;

[0021] Preparation of spinach extract: first wash and dry spinach to make a dry powder with a particle size of 0.075mm, then mix the spinach dry powder with water at a weight ratio of 1:8, and stir and react at 80°C for 0.5 hours to prepare Get spinach extract;

[0022] Enteromorpha extract, spinach extract, and anhydrous calcium chloride are mixed at a ratio of 49:49:10 by weight, stirred and reacted at 110°C for 1 hour, and cooled to prepare a green eluent of cadmium-contaminated cinn...

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Abstract

The invention discloses a cadmium-contaminated cinnamon green leaching agent and a preparation method thereof, which belong to the technical field of heavy metal pollution restoration; Its preparation method is as follows: first wash and dry Enteromorpha and spinach to make dry powder with a particle size not greater than 0.125 mm; then mix Enteromorpha dry powder with water in a weight ratio of 1:30 to 70, and Stir and react at 80-90°C for 2-4 hours to obtain the extract; at the same time, mix dry spinach powder and water in a weight ratio of 1:3-8, stir and react at 70-80°C for 0.5-2 hours to obtain the extract Finally, mix the two extracts with anhydrous calcium chloride according to the weight ratio of 45-49:45-49:2-10, stir and react at 100-110°C for 1-2 hours, and cool to obtain the eluent The raw materials used in the present invention are cheap and easy to obtain, and the preparation method is simple and convenient, which can "turn waste into treasure" of Enteromorpha, without causing secondary pollution, and has broad application prospects.

Description

Technical field: [0001] The invention relates to the technical field of remediation and treatment of heavy metal polluted soil, in particular to a green leaching agent for cadmium polluted cinnamon soil and a preparation method thereof. Background technique: [0002] At present, due to the intensification of human activities such as emissions from industrial and mining enterprises and the application of chemical fertilizers and pesticides, heavy metal pollution threatens almost all countries in the world. As one of the "five poisons", heavy metal cadmium has attracted much attention due to its high toxicity and high activity. According to data from the US Geological Survey, about 29,000 tons of cadmium is emitted globally each year, of which about 21,620 tons enter the soil. The situation of soil cadmium pollution in my country is also very serious. Statistics show that the area of ​​cadmium-contaminated soil in my country is as high as 200,000 hectares. Studies have shown...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40B09C1/02
CPCB09C1/02C09K17/40
Inventor 董志成张丽娜陈俊华刘莺刘书歆高志远杨悦
Owner LUDONG UNIVERSITY
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