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Magnetic microorganism carrier prepared from biomass waste and application thereof

A technology of magnetic microorganisms and biomass materials, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Processing capacity, efficient adsorption, good degradation effect

Inactive Publication Date: 2012-07-18
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some biomass wastes, such as wood chips, peanut shells, etc., have good adsorption capacity for heavy metals, but have no good effect on organic matter

Method used

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  • Magnetic microorganism carrier prepared from biomass waste and application thereof

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] see figure 1 , is the physical schematic diagram of the preparation process of the present embodiment, and the steps of its implementation are as follows:

[0020] In the first step, the cleaned and dried biomass waste, such as sawdust or peanut shells, is crushed and screened to obtain materials with a fineness of 20 to 40 meshes for use;

[0021] In the second step, take the material obtained in the first step and use 20% NaOH solution or 1:1 H 2 SO 4 The solution was soaked for about 1 hour, filtered with suction and washed with water until it was nearly neutral, and then dried to obtain a preliminary modified biomass material;

[0022] The 3rd step, take by weighing the biomass material after the 2nd step process, join in the metal salt solution such as iron and / or nickel containing certain concentration, (if divalent metal uses ...

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Abstract

The invention belongs to the field of water pollution treatment, prevention and control, and in particular relates to a magnetic microorganism carrier prepared from biomass waste and application thereof. The magnetic microorganism carrier is prepared by the steps of: crushing cleaned and dried biomass wastes, such as sawdust or peanut shells and the like, soaking with NaOH solution or H2SO4 solution, carrying out suction filtering, washing with water and drying to obtain preliminarily-modified biomass material; then, adding the obtained biomass material into metal salt solution containing Fe and / or Ni ion of certain concentration, stirring for certain time with a magnetic stirrer and heating; slowly dripping alkali liquor until pH is more than 12 while quickly stirring; reacting the solution in the water bath or the drying oven at the temperature of 100 DEG C, filtering and washing with water; and finally, placing the biomass material into a drying oven and drying at constant temperature for certain time until the material weight is constant to obtain the product. The magnetic microorganism carrier disclosed by the invention can be used for treating industrial waste water polluted by heavy metal and polyaromatic hydrocarbons and has the advantages of low cost and good effect.

Description

technical field [0001] The invention belongs to the field of water pollution treatment and prevention, and in particular relates to the preparation of a magnetic microbial carrier from biomass waste and its application. Background technique [0002] The research on combined pollution of heavy metals and polycyclic aromatic hydrocarbons in wastewater and soil has become one of the important directions of environmental science and technology development. At present, for this kind of composite polluted wastewater, the use of activated carbon, natural materials, and high molecular polymers is one of the main directions of research. Among them, the development and development of some low-cost adsorbents is the main focus. Some biomass wastes, such as wood chips, peanut shells, etc., have good adsorption capacity for heavy metals, but have no good effect on organic matter. The biological method is currently the most effective technology for degrading organic pollutants in wastewa...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/34
Inventor 邓志毅雷娜肖利平
Owner XIANGTAN UNIV
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