Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of magnetic hydrothermal carbon

A magnetic water and thermal carbon technology, applied in chemical instruments and methods, water pollutants, other chemical processes, etc., can solve the problems of high operating cost, difficult industrial application, low thallium adsorption load, etc., and achieves strong popularization and operation. Low cost and easy operation

Active Publication Date: 2020-12-01
GUANGZHOU UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technical problems to be solved by the present invention: the current technology for removing thallium from wastewater has complex operation procedures, high operating costs, unstable thallium removal effect, and low thallium adsorption load, making it difficult to realize industrial application; moreover, the existing wastewater thallium removal technology is not It has the functions of enriching, concentrating and recycling thallium, making the material for removing thallium a hazardous waste with higher processing costs

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of magnetic hydrothermal carbon
  • Preparation method and application of magnetic hydrothermal carbon
  • Preparation method and application of magnetic hydrothermal carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this example, a magnetic hydrothermal carbon was synthesized, using tannery wastewater (with an organic carbon concentration of 360 mg / L) as the organic carbon raw material, and ferroferric oxide as the magnetic material. The preparation method of this magnetic hydrothermal carbon comprises the following steps:

[0033] 1) Preparation of magnetic material: Fe3iron tetroxide was repeatedly ground and passed through a 200-mesh sieve to obtain a magnetic core material.

[0034] 2) Preparation of magnetic hydrothermal carbon: put the above-mentioned magnetic core material (magnetic material) into the reaction kettle, and add tannery wastewater, so that the mass ratio of organic carbon and magnetic material in the tannery wastewater is 0.15, and then in 180 React at ℃ for 8 hours, discard the supernatant after cooling, and wash the obtained precipitate with a magnet to separate and dry it, which is the prepared magnetic hydrothermal carbon.

[0035] figure 1 The scannin...

Embodiment 2

[0038] The magnetic hydrothermal carbon provided in this embodiment uses the same organic waste water and magnetic materials as in Embodiment 1 for its synthetic materials. The preparation method of magnetic hydrothermal carbon of the present embodiment comprises the following steps:

[0039] 1) Preparation of magnetic material: Fe3iron tetroxide was repeatedly ground and passed through a 200-mesh sieve to obtain a magnetic core material.

[0040] 2) Preparation of magnetic hydrothermal carbon: put the above-mentioned magnetic core material (magnetic material) into the reaction kettle, and add tannery wastewater, so that the mass ratio of organic carbon in the tannery wastewater to the magnetic material is 0.5, and then at 200 React at ℃ for 10 hours, discard the supernatant after cooling, and wash the precipitate obtained by using a magnet to separate and dry it, which is the prepared magnetic hydrothermal carbon.

[0041] The magnetic hydrothermal carbon synthesized in this...

Embodiment 3

[0043] The magnetic hydrothermal carbon provided in this embodiment uses the same organic waste water and magnetic materials as in Embodiment 1 for its synthetic materials. The preparation method of magnetic hydrothermal carbon of the present embodiment comprises the following steps:

[0044] 1) Preparation of magnetic material: Fe3iron tetroxide was repeatedly ground and passed through a 200-mesh sieve to obtain a magnetic core material.

[0045] 2) Preparation of magnetic hydrothermal carbon: put the above-mentioned magnetic core material (magnetic material) into the reaction kettle, and add tannery wastewater, so that the mass ratio of organic carbon and magnetic material in the tannery wastewater is 3.5, and then in 240 React at ℃ for 10 hours, discard the supernatant after cooling, and wash the precipitate obtained by using a magnet to separate and dry it, which is the prepared magnetic hydrothermal carbon.

[0046] The magnetic hydrothermal carbon synthesized in this ex...

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
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a magnetic hydrothermal charcoal, which is prepared by reacting a magnetic material with organic waste water at 180-240°C for 8-12 hours, separating the resulting precipitate and drying it, which is the prepared magnetic hydrothermal charcoal; The mass ratio of the organic carbon in the organic wastewater to the magnetic material is 0.15-3.5. The invention also provides a method for efficiently removing thallium from wastewater by using the magnetic hydrothermal carbon, adding the magnetic hydrothermal carbon and hypochlorite to synergistically treat thallium-containing wastewater, and removing magnetic hydrothermal carbon after the reaction is completed. Attached, the magnetic hydrothermal carbon can be recycled, and the thallium element adsorbed by it is enriched into the desorption liquid. The invention has low cost, and the magnetic material has a thallium removal load of more than 1700mg / g, can reuse magnetic hydrothermal charcoal, and can also efficiently remove thallium in waste water, and is suitable for thallium removal in various low, medium and high concentration thallium-containing waste water purify.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, relates to a water treatment porous material, in particular to a magnetic hydrothermal carbon and its preparation method and application. The magnetic hydrothermal carbon of the invention can effectively remove the thallium element in the thallium-containing wastewater, and can realize the enrichment and recovery of the thallium element. Background technique [0002] Thallium is a rare and dispersed heavy metal element, as well as a highly toxic heavy metal element. Its toxicity is higher than that of heavy metals such as cadmium, mercury, and lead, and it has a strong accumulation of water and heat, which can pose a great threat to the human body and the ecological environment. . The weathering of thallium-containing minerals in the natural environment and modern industrial activities are the main sources of thallium pollution. In recent years, a large number of thallium-containi...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30C02F101/20
CPCB01J20/0225B01J20/06B01J20/20C02F1/283B01J20/28009C02F2101/20C02F2101/30
Inventor 李伙生龙建友肖唐付张鸿郭陈永亨林茂熊静芳李珂珂
Owner GUANGZHOU UNIVERSITY