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Immobilized biochar-microalgae material and preparation method and application thereof

A technology of application and microalgae, applied in the field of immobilized carbon algae material and its preparation, can solve the problems of swelling and rupture of gel carrier, reduced reusability of immobilized microalgae, secondary pollution of water body, etc., and achieves developed pore structure. , the best sewage treatment efficiency, the effect of good adsorption capacity

Inactive Publication Date: 2020-06-09
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the symbiosis system of bacteria and algae, the biomass loaded on the gel carrier is high, and the rapid proliferation of bacteria and microalgae will easily lead to the expansion and rupture of the gel carrier, which reduces the reuse rate of immobilized microalgae and is easy to secondary pollution of water

Method used

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  • Immobilized biochar-microalgae material and preparation method and application thereof
  • Immobilized biochar-microalgae material and preparation method and application thereof
  • Immobilized biochar-microalgae material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] This embodiment provides an immobilized charcoal algae material. The immobilized charcoal algae material is an immobilized microsphere in which microalgae and biochar are embedded in gel microspheres. Wherein, the microalgae is Chlorella pyrenoidosa, and the particle diameter of the immobilized microspheres is 3-4mm. Concentrate of microalgae forming immobilized microspheres: biochar (mL:g) was 10:0.3, and the density of the concentrate of microalgae was 9.0×10 8 cell / ml. Gel microspheres use sodium alginate as the gel carrier, cross-linked with calcium chloride to form; the mass ratio of sodium alginate to calcium chloride is 2:1, and the concentration of sodium alginate solution forming gel microspheres is 0.04 g / mL, the concentration of calcium chloride solution forming gel microspheres is 0.02 g / mL.

[0047] This embodiment also provides the preparation method of the above-mentioned immobilized charcoal algae material, comprising the following steps:

[0048] S1,...

Embodiment 2

[0059] This embodiment provides an immobilized charcoal algae material. The immobilized charcoal algae material is an immobilized microsphere in which microalgae and biochar are embedded in gel microspheres. Wherein, the microalgae is Chlorella pyrenoidosa, and the particle diameter of the immobilized microspheres is 3-4mm. Concentrate of microalgae forming immobilized microspheres: biochar (mL:g) is 10:0.4, density of microalgae concentrate is 9.0×10 8 cell / ml. Gel microspheres use sodium alginate as the gel carrier, cross-linked with calcium chloride to form; the mass ratio of sodium alginate to calcium chloride is 5:1, and the concentration of sodium alginate solution forming gel microspheres is 0.05 g / mL, the concentration of calcium chloride solution forming gel microspheres is 0.01 g / mL.

[0060] This embodiment also provides the preparation method of the above-mentioned immobilized charcoal algae material, comprising the following steps:

[0061] S1, pre-treating the...

Embodiment 3

[0072] This embodiment provides an immobilized charcoal algae material. The immobilized charcoal algae material is an immobilized microsphere in which microalgae and biochar are embedded in gel microspheres. Wherein, the microalgae is Chlorella pyrenoidosa, and the particle diameter of the immobilized microspheres is 3-4mm. Concentrate of microalgae forming immobilized microspheres: biochar (mL:g) is 10:0.2, density of microalgae concentrate is 9.0×10 8 cell / ml. Gel microspheres use sodium alginate as the gel carrier, cross-linked with calcium chloride to form; the mass ratio of sodium alginate to calcium chloride is 1:1, and the concentration of sodium alginate solution forming gel microspheres is 0.03 g / mL, the concentration of the calcium chloride solution forming gel microspheres is 0.03 g / mL.

[0073] This embodiment also provides the preparation method of the above-mentioned immobilized charcoal algae material, comprising the following steps:

[0074] S1, pre-treating t...

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Abstract

The invention discloses an immobilized biochar-microalgae material. The immobilized biochar-microalgae material is immobilized microspheres obtained by embedding the microalgae and the biochar with gel microspheres. The microalgae and the biochar are embedded simultaneously, so that the immobilized microspheres are higher in mechanical strength and better in stability and mass transfer performance. The pore structure of the biochar can accommodate the microalgae, improve the immobilization strength and provide nutrient components required by the microalgae. The microalgae and the biochar are coupled in a synergistic manner, so that the removal efficiency of immobilized spheres is improved on nitrogen, phosphorus, organic carbon, heavy metals, etc., the immobilized spheres have good reusability, and the service life of the immobilized spheres in the wastewater treatment is prolonged. The invention discloses application of the immobilized biochar-microalgae material in the wastewater treatment and treatments on nitrogen, phosphorus, organic carbon and heavy metals, with the advantages of high efficiency, good reusability, etc. The invention also discloses a preparation method of theimmobilized biochar-microalgae material, so that the immobilized microspheres with high removal rates of nitrogen, phosphorus, organic carbon and heavy metals in wastewater, good reusability and longservice life can be prepared.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an immobilized charcoal algae material and its preparation method and application. Background technique [0002] With the continuous development of economy and society, a large amount of wastewater produced by production activities such as industry, agriculture, life and breeding has caused serious harm to the ecological environment and human health. These wastewaters are rich in a large amount of inorganic salt ions, organic matter and heavy metals, etc., which are directly discharged after incomplete treatment, causing water pollution such as rivers and lakes, thus posing a serious threat to the ecological environment and even water resources. [0003] In recent years, many studies at home and abroad have shown that microalgae have great potential in wastewater treatment. Microalgae are the most primitive and widely distributed low-level organisms on the earth that...

Claims

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Application Information

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IPC IPC(8): C12N11/14C12N11/10C02F3/32
CPCC02F3/322C02F2003/001C12N11/10C12N11/14
Inventor 刘安郭奇聪
Owner SHENZHEN UNIV
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