Manganese dioxide modified biochar composite material and its preparation method and application

A technology of manganese dioxide and composite materials, which is applied in the field of materials and the environment, can solve the problems of insufficient utilization of manganese elements, waste of raw materials, and difficulty in controlling the load of manganese oxides, etc., to achieve effective control, obvious adsorption effect, and increased stable effect
CN107983300BActive Publication Date: 2019-11-05HUNAN UNIV
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2019-11-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a manganese dioxide modified biochar composite material as well as a preparation method and an application thereof. The composite material is prepared from manganese dioxide and biochar by loading generated manganese dioxide on biochar through the neutralization reaction of permanganate and manganese in divalent manganese salt. The manganese dioxide modified composite material has the advantages of high adsorption capacity for heavy metal lead or cadmium, obvious adsorption effect, low preparation cost and the like, and is an ideal heavy metal wastewater adsorbent; thepreparation method of the composite material has the advantages of simple process, cheap raw materials, sufficiently used raw materials, low production cost and the like. The manganese dioxide modified composite material can be used for treating heavy metal wastewater, and has the advantages of high adsorption capacity for heavy metals, high adsorption efficiency, low toxicity to organisms in theenvironment and the like, and can be produced and applied on a large scale.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of materials and environment, and in particular relates to a biochar composite material modified by manganese dioxide and its preparation method and application. Background technique

[0002] With the rapid development of modern industry and agriculture, heavy metals enter the water body through industrial pollution sources such as mining, metal processing and chemical production wastewater, the use of pesticides and fertilizers and domestic garbage and other sources of pollution, as well as natural sources such as geological erosion and weathering, which are harmful to public health. pose a serious threat to the ecological environment. What's more serious is that heavy metal pollution has the characteristics of concealment, long-term, irreversible and serious consequences. It can eventually enter the human body through the ecological food chain, causing physiological diseases and endangering human health.

[0003] A...

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