Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for jointly adsorbing lead/chlorpyrifos in water body by activated loess iron-manganese nodule

A technology of iron-manganese nodules and chlorpyrifos is applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., and achieves the effects of good safety, low cost and easy operation.

Inactive Publication Date: 2014-04-30
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few related studies on loess iron-manganese nodules in upland fields, and there is no report on the removal of lead / pyrithion complex pollutants in water by co-adsorption using activated loess iron-manganese nodules as an adsorbent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for co-adsorption of activated loess ferromanganese nodules to water body lead / pyridion, comprising the following steps,

[0018] The first step is to manually pick out the debris such as plant rhizome residues in the dry field loess, wash the soil sample three times with pure water, and sieve it to obtain loess ferromanganese nodules with a particle size greater than 40 mesh;

[0019] In the second step, grind the iron-manganese nodules to a particle size of 0.1±0.02mm, put them into a stoppered Erlenmeyer flask, and use FeCl 3 Solution immersion activation, ultrasonic power 100W, FeCl 3 The solution concentration is 0.4mol / L, the ferromanganese nodules and FeCl 3 The mass volume ratio of the solution is 1:90g / mL;

[0020] In the third step, the activated product is suction-filtered and dried (40±5°C) to obtain activated loess ferromanganese nodules;

[0021] The fourth step is to use the activated loess ferromanganese nodules as the adsorbent to co-adsorb ...

Embodiment 2

[0026] A method for co-adsorption of activated loess ferromanganese nodules to water body lead / pyridion, comprising the following steps,

[0027] The first step is to manually pick out the debris such as plant rhizome residues in the dry field loess, wash the soil sample three times with pure water, and sieve it to obtain loess ferromanganese nodules with a particle size greater than 40 mesh;

[0028] In the second step, grind the iron-manganese nodules to a particle size of 0.1±0.02mm, put them into a stoppered Erlenmeyer flask, and use FeCl 3 Solution immersion activation, ultrasonic power 75W, FeCl 3 The solution concentration is 0.2mol / L, the ferromanganese nodules and FeCl 3 The mass volume ratio of the solution is 1:60g / mL;

[0029] In the third step, the activated product is suction-filtered and dried (40±5°C) to obtain activated loess ferromanganese nodules;

[0030] The fourth step is to use the activated loess ferromanganese nodules as the adsorbent to co-adsorb t...

Embodiment 3

[0034] A method for co-adsorption of activated loess ferromanganese nodules to water body lead / pyridion, comprising the following steps,

[0035] The first step is to manually pick out the debris such as plant rhizome residues in the dry field loess, wash the soil sample three times with pure water, and sieve it to obtain loess ferromanganese nodules with a particle size greater than 40 mesh;

[0036] In the second step, grind the iron-manganese nodules to a particle size of 0.1±0.02mm, put them into a stoppered Erlenmeyer flask, and use FeCl 3 Solution immersion activation, ultrasonic power 50W, FeCl 3 The solution concentration is 0.1mol / L, the ferromanganese nodules and FeCl 3 The mass volume ratio of the solution is 1:30g / mL;

[0037] In the third step, the activated product is suction-filtered and dried (40±5°C) to obtain activated loess ferromanganese nodules;

[0038] The fourth step is to use the activated loess ferromanganese nodules as the adsorbent to co-adsorb t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for jointly adsorbing lead / chlorpyrifos in a water body by activated loess iron-manganese nodule. The method comprises steps of firstly, picking residual root and stalk of plants and the like out from loess of a dry farmland by manual work, repeatedly washing a soil sample with pure water for three times, sieving so as to obtain loess iron-manganese nodule with grain size greater than 40 meshes; secondly, grinding the iron-manganese nodule till the grain size is 0.1+ / -0.02mm, throwing into a conical flask with a stopper, under the conditions of stirring assisted by ultrasonic (120+ / -5rpm) and heating in water bath (80+ / -5DEG C), soaking and activating by a FeCl3 solution, leaching and stoving the activated product (at 40+ / -5DEG C); jointly adsorbing a lead / chlorpyrifos combined pollutant in the water body by taking the activated loess iron-manganese nodule as an adsorbent; and after saturation of adsorption, desorbing by pure water under the condition of stirring assisted by ultrasonic, inspecting the cyclic utilization potential of the activated loess iron-manganese nodule. The method has low cost, is simple and convenient to operate, has strong practicability and good safety, and has good application potential in adsorbing and purifying heavy metal / pesticide composite pollutant in the water body.

Description

technical field [0001] The invention relates to a method for co-adsorption of lead / pyrithion in water, in particular to a method for co-adsorption of lead / pyrithion in water by activated loess ferromanganese nodules. Background technique [0002] Lead is one of the "five poisonous" heavy metal elements that widely exist in nature. With the acceleration of urbanization and industrialization, the heavy metal lead has become an important pollutant in the atmosphere, hydrosphere and pedosphere. Chlorpyrifos (C 9 h 11 Cl 3 NO 3 PS) is a broad-spectrum insecticide developed by Dow Chemical Company in the United States, and has become the main pesticide species with large production and use in the world. At present, the World Wildlife Fund has listed these two pollutants as suspected environmental endocrine disruptors (EEDs), and their production and use have been strictly regulated by relevant departments. Heavy metal lead pollution mainly comes from mining, vehicle exhaust,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F1/28B01J20/02B01J20/30C02F101/20C02F101/36
Inventor 范春辉
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com