Biomass filtering material

A technology for filtering materials and biomass, which is applied in the fields of filtration and separation, water/sludge/sewage treatment, water/sewage treatment, etc. Strong bonding force and elasticity, and the effect of increasing tensile strength

Active Publication Date: 2011-12-28
WUXI GUANGXU STEEL SHEET +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Heavy metals not only endanger human safety and affect the growth of aquatic animals and plants, but also in the process of sewage treatment, due to the toxicity of heavy metals, they can directly kill biological bacteria, so if heavy metals in sewage are not removed, it will directly affect the subsequent water treatment. Degradation link
[0004] The traditional methods for removing heavy metal ions in water include: chemical method, which is easy to cause secondary pollution and increase operating costs by adding chemical agents; adsorption method, which uses activated carbon adsorption or humic acid resin, zeolite and other adsorption, the amount of adsorbent required Large, difficult to be used in large-scale production applications; reverse osmosis method, the cost of this method is relatively high, it is diffic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First prepare the biomass filter material, including the following steps: (1) mechanically pulverize the plant waste to obtain raw material A; (2) mix the plant waste with a mass fraction of 66%, 6% of animal fur, 8% of old clothes, 9% of carapace and 11% of waste plastics were subjected to steam explosion treatment to obtain raw material B; (3) the mass fractions were 50% of raw material A, 39% of raw material B, 4% of polyvinyl alcohol solution, and 2% of waste plastics. The coating mixture and 5% chitosan were mixed, stirred evenly, and then manufactured into filter materials by mechanical pressing.

[0034] The plant waste includes straw, fruit shell, thatch, leaves, bamboo grass, and sawdust;

[0035] The water content of the plant waste is 50%;

[0036] The animal fur includes chicken feather, goose feather, duck feather and waste leather;

[0037] The particle diameter of described raw material A is 40~100 orders;

[0038] The particle size o...

Embodiment 2

[0046] First prepare the biomass filter material, including the following steps: (1) mechanically pulverize the plant waste to obtain raw material A; (2) mix the plant waste with a mass fraction of 64%, 4% of animal fur, 11% of old clothes, 12% of carapace and 9% of waste plastics were subjected to steam explosion treatment to obtain raw material B; (3) the mass fractions were respectively 60% of raw material A, 30% of raw material B, 2% of polyvinyl alcohol solution, and 5% of waste plastic The coating mixture and 3% chitosan were mixed, stirred evenly, and then manufactured into filter materials by mechanical pressing.

[0047] The plant wastes include straw, fruit shells, reeds, bagasse, leaves, wood chips;

[0048] The water content of the plant waste is 10%;

[0049] The animal fur includes wool felt;

[0050] The particle diameter of described raw material A is 40~100 orders;

[0051] The particle size of the raw material B is 0.01 to 100 microns;

...

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Abstract

The invention relates to a biomass filtering material. The biomass filtering material comprises the following steps: 1, carrying out mechanical pulverization on a plant waste to obtain a raw material A; 2, carrying out steam explosion treatment on the following materials, by mass, 64-66% of the plant waste, 4-7% of animal fur, 8-11% of old clothes, 9-12% of crust, and 9-11% of a plastic waste to obtain a raw material B; and 3, mixing the following materials, by mass, 50-60% of the raw material A, 30-40% of the raw material B, 2-4% of a polyethylene alcoholic solution, 2-5% of a waste coating mixture, and 3-5% of chitosan, uniformly stirring, and carrying out machinery compacting to manufacture the filtering material. According to the invention, most raw materials are recycled and reused, the source is wide, the cost is low, the preparation technology is simple, and heavy metals in water can be effectively filtered out.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a biomass filter material for filtering heavy metals in sewage. Background technique [0002] According to the survey by the National Environmental Protection Agency, the problem of heavy metal pollution in my country's water is very prominent: the pollution rate of the bottom of rivers, lakes and reservoirs is as high as 80.1%; In 2004, the contents of total copper, total lead and total cadmium in Taihu Lake sediments were all at the level of slight pollution; 35.11% of urban river sections had total mercury exceeding the surface water standard of Category III, and 18.46% of the river sections The total cadmium exceeded the standard for Class III water bodies, and samples exceeding the standard for total lead appeared in 25% of the river sections. [0003] Heavy metals not only endanger human safety and affect the growth of aquatic animals and plants, but also in the process of se...

Claims

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Application Information

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IPC IPC(8): B01D39/16C02F1/62
Inventor 强光初
Owner WUXI GUANGXU STEEL SHEET
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