Method for preparing activated carbon-persimmon tannin compound absorbent

A composite adsorption and activated carbon technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of difficult removal of metal ions, etc. health benefits
CN102266754BInactive Publication Date: 2012-11-07HUBEI SHIWEITIAN PHARMA TECH +1
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI SHIWEITIAN PHARMA TECH
Publication Date
2012-11-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention relates to a method for preparing an activated carbon-persimmon tannin compound absorbent. The method comprises the following steps: 1) pre-treating the activated carbon; 2) on the basis that a ratio of the treated activated carbon to a persimmon tannin solution is 0.500g:250ml, preparing the treated activated carbon and the persimmon tannin solution with concentration of 40mg / L; adding the treated activated carbon into the persimmon tannin solution of which the pH value is 3.0; magnetically stirring for 8-24 hours; filtering with oily filter paper; washing with distilled water; and drying in an oven at 85-105 DEG C to finally obtain the activated carbon-persimmon tannin compound absorbent. The method has the advantages that the cost is low, the process is simple and the prepared compound absorbent has better absorbing effect. The compound absorbent can be used for purifying the industrial sewage and domestic water, can be used as a clarifying agent for liquor and an absorbent for cigarette filter tip, and is more beneficial to the health of human.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method of activated carbon-persimmon tannin composite adsorbent. The composite adsorbent is suitable for treating industrial wastewater containing heavy metal ions and purifying and treating residential water. Background technique

[0002] Among the many environmental pollutions, heavy metals can easily enter the human body through the food chain because they cannot be degraded naturally, seriously endangering human health. Therefore, the pollution in water bodies has attracted more and more attention. Lead, cadmium, etc. and their compounds are widely used in mining, smelting, electronics, electroplating, petroleum, fertilizer manufacturing and other industries. They have become important sources of pollution in sewage and have attracted people's attention. There are strict regulations limiting the amount allowed.

[0003] At present, domestic methods for removing lead and cadmium in water include chemical prec...

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