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A kind of high-efficiency cadmium adsorption fungal agent and its preparation method and application

A fungal agent and adsorbent technology, which is applied in the field of high-efficiency cadmium adsorption fungal agent and its preparation, can solve the problems of high cadmium treatment cost, poor treatment effect, long treatment time, etc. The effect of strong adsorption capacity

Active Publication Date: 2019-09-03
中科厚土润泽环境科技(江苏)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a high-efficiency cadmium-adsorbing fungal agent and its preparation method and application, which can effectively solve the problem of high cost, long treatment time and ineffective treatment of cadmium in water in the prior art. good question

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  • A kind of high-efficiency cadmium adsorption fungal agent and its preparation method and application
  • A kind of high-efficiency cadmium adsorption fungal agent and its preparation method and application
  • A kind of high-efficiency cadmium adsorption fungal agent and its preparation method and application

Examples

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Effect test

Embodiment 1

[0027] A preparation method for high-efficiency cadmium-adsorbing fungal agent, comprising the following steps:

[0028] (1) Activated bacteria

[0029] Inoculate Hanzhi in PDA solid medium and culture in dark at 28°C. When it grows to 3 / 4 plate, transfer the strain to new PDA solid medium and culture in dark at 28°C;

[0030] (2) When the mycelium of the activated strain grows to a 3 / 4 plate, inoculate the mycelium in a liquid-enriched medium, place it at 28°C, and culture it in dark at 170r / min for 6 days, centrifuge, and remove the filtrate , made; wherein, the rich medium is added 3g of potato dipping powder, 20g of glucose, KH in every liter of nutrient solution 2 PO 4 1g, MgSO 4 0.25g, sucrose 2g and adsorbent 8g.

[0031] Wherein, the adsorbent is prepared by the following method:

[0032] ① Grind coconut shells, rice roots and cottonseed husks to 80 meshes respectively, remove impurities from reeds, rape straws and rice straws, cut to 2 cm, mix, and bake at 90°C ...

Embodiment 2

[0036] A preparation method for high-efficiency cadmium-adsorbing fungal agent, comprising the following steps:

[0037] (1) Activated bacteria

[0038] Inoculate Hanzhi in PDA solid medium and culture in dark at 28°C. When it grows to 3 / 4 plate, transfer the strain to new PDA solid medium and culture in dark at 28°C;

[0039] (2) When the mycelium of the activated strain grows to a 3 / 4 plate, inoculate the mycelium in a liquid-enriched medium, place it at 28°C, and culture it in dark at 170r / min for 6 days, centrifuge, and remove the filtrate , made; wherein, the rich medium is added 3g of potato dipping powder, 20g of glucose, KH in every liter of nutrient solution 2 PO 4 1g, MgSO 4 0.2g, sucrose 1.5g and adsorbent 5g.

[0040] Wherein, the adsorbent is prepared by the following method:

[0041] ① Grind coconut shells, rice roots and cottonseed husks to 80 meshes respectively, remove impurities from reeds, rape straws and rice straws, cut to 2 cm, mix, and bake at 90°C...

Embodiment 3

[0045] A preparation method for high-efficiency cadmium-adsorbing fungal agent, comprising the following steps:

[0046] (1) Activated bacteria

[0047] Inoculate Hanzhi in PDA solid medium and culture in dark at 28°C. When it grows to 3 / 4 plate, transfer the strain to new PDA solid medium and culture in dark at 28°C;

[0048] (2) When the mycelium of the activated strain grows to a 3 / 4 plate, inoculate the mycelium in a liquid-enriched medium, place it at 28°C, and culture it in dark at 170r / min for 6 days, centrifuge, and remove the filtrate , made; Wherein, the enriched medium is adding 5g of potato dipping powder, 23g of glucose, KH in every liter of nutrient solution 2 PO 4 1.5g, MgSO 4 0.3g, 2.5g of sucrose and 8g of adsorbent.

[0049] Wherein, the adsorbent is prepared by the following method:

[0050]① Grind coconut shells, rice roots and cottonseed husks to 80 meshes respectively, remove impurities from reeds, rape straws and rice straws, cut to 2 cm, mix, and ...

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Abstract

The invention discloses an efficient cadmium adsorption fungal inoculant as well as a preparation method and application thereof. The preparation method comprises the following steps: activating a Ganoderma lucidum HG strain; and culturing the activated mycelia in an enriched medium, wherein the enriched medium is prepared by adding 3-5g of potato extract powder, 20-23g of glucose, 1-1.5g of KH2PO4, 0.2-0.3g of MgSO4, 1.5-2.5g of saccharose and 5-8g of an adsorbent into each litter of a nutrition liquid. The efficient cadmium adsorption fungal inoculant prepared by the invention is simple in preparation process and low in cost. The inoculant is placed in the water body, so that cadmium in the water body can be adsorbed, and adsorption equilibrium can be achieved within a short time and the adsorption effect is good.

Description

technical field [0001] The invention belongs to the technical field of cadmium adsorbents, and in particular relates to a high-efficiency cadmium-absorbing fungal agent and its preparation method and application. Background technique [0002] Cadmium is a highly toxic pollutant. It is widely used in electroplating, pigments, storage batteries, plastics, metallurgy and other industries. Due to the continuous development and utilization of cadmium by humans, a large amount of cadmium-containing wastewater is now discharged into rivers and lakes. In recent years, there have been many cases of cadmium pollution in my country, which have seriously affected human health. At present, domestic and foreign treatment methods for cadmium-containing wastewater mainly include chemical precipitation, air flotation, activated carbon adsorption, and ion exchange. However, these traditional physical and chemical methods for spacer removal often have disadvantages such as high investment, lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14C12R1/645C02F101/20
Inventor 陈苗苗李小方
Owner 中科厚土润泽环境科技(江苏)股份有限公司