Method for removing heavy metal ions out of water

A technology of heavy metal ions and water bodies, applied in the field of environmental pollution control, can solve the problems of large chemical reagent consumption, complicated immobilization steps, and indispensable carriers, etc., and achieve the effects of low cost, easy separation, and strong stability

Active Publication Date: 2014-07-09
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to combine the advantages of charcoal adsorption and microbial remediation and overcome the shortcomings of easy loss and difficult separation, embedding and cross-linking immobilization methods are usually used at home and abroad, but the immobilization operation is usually indispensable for carriers, embedding agents, and cross-linking agents. The immobilization steps are complex and require a large amount of chemical reagents

Method used

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  • Method for removing heavy metal ions out of water
  • Method for removing heavy metal ions out of water
  • Method for removing heavy metal ions out of water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The Penicillium simplicissimum used in this example was obtained from the China Center of Industrial Culture Collection (CICC), and the CICC number is 40667.

[0028] The present embodiment removes hexavalent chromium (Cr 6+ ) method, comprising the following steps:

[0029] (1) Liquid culture medium (the components of the aforementioned liquid medium are shown in Table 1), hexavalent chromium (Cr 6+ ) solution, charcoal powder was sterilized at 115°C for 20 minutes, and then cooled to room temperature under sterile conditions. Put the spores of Penicillium simpleum in sterile water to make spore suspension, the concentration of Penicillium simplex spores in the spore suspension is 2.0×10 6 individual / mL. The aforementioned spore suspension is inoculated into a sterilized liquid medium to obtain an inoculated liquid medium.

[0030] (2) Take 7 groups of above inoculated liquid culture medium, set three parallel samples for each group, add hexavalent chromium (Cr 6+...

Embodiment 2

[0037]The Penicillium simplicissimum used in this example was obtained from the China Center of Industrial Culture Collection (CICC), and the CICC number is 40667.

[0038] A method for removing hexavalent chromium (Cr 6+ ) method, comprising the following steps:

[0039] (1) Liquid culture medium (see Table 1 for its composition), hexavalent chromium (Cr 6+ ) solution and charcoal powder were sterilized at 115°C for 20 minutes, and then cooled to room temperature under sterile conditions. Put the spores of Penicillium simpleum in sterile water to make spore suspension, the concentration of Penicillium simplex spores in the spore suspension is 2.0×10 6 individual / mL. The aforementioned spore suspension is inoculated into a sterilized liquid medium to obtain an inoculated liquid medium. Add hexavalent chromium (Cr 6+ ) solution to obtain a mixed solution, so that hexavalent chromium (Cr 6+ ) concentration is 30mg / L.

[0040] (2) Take 5 groups of the above mixed solution,...

Embodiment 3

[0044] The Penicillium simplicissimum used in this example was obtained from the China Center of Industrial Culture Collection (CICC), and the CICC number is 40667.

[0045] A method for removing hexavalent chromium (Cr 6+ ) method, comprising the following steps:

[0046] (1) Liquid culture medium (see Table 1 for its composition), hexavalent chromium (Cr 6+ ) solution and charcoal powder were sterilized at 115°C for 20 minutes, and then cooled to room temperature under sterile conditions. Put the spores of Penicillium simpleum in sterile water to make spore suspension, the concentration of Penicillium simplex spores in the spore suspension is 2.0×10 6 individual / mL. The aforementioned spore suspension is inoculated into a sterilized liquid medium to obtain an inoculated liquid medium.

[0047] (2) Add hexavalent chromium (Cr 6+ ) solution to make hexavalent chromium (Cr 6+ ) concentration is 25mg / L, obtains mixed solution. Add charcoal powder to the aforementioned mix...

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Abstract

The invention belongs to the field of the environmental pollution control method and specifically relates to a method for removing heavy metal ions out of water. The method comprises the steps of mixing penicillium simplicissimum spores and a heavy metal ion solution to obtain a mixed solution, next, adding charcoal dust to the mixed solution, and then carrying out culturing and separation processes, thus completing the adsorption and removal of heavy metal ions out of the water. The method is characterized in that an immobilized object and an immobilization carrier are exchanged, the penicillium simplicissimum mycelia are taken as the carrier to immobilize the charcoal dust, the reducing adsorption action of the charcoal and the penicillium simplicissimum on hexavalent chromium (Cr<6+>) in water and the adsorption effect of the charcoal and the penicillium simplicissimum on heavy metal ions such as cadmium (Cd<2+>), lead (Pb<2+>) and copper (Cu<2+>) in water are achieved simultaneously, and therefore, charcoal dust with the heavy metal ions is easy to separate; the method is simple in operation condition, easy to implement, low in cost and high in removal rate, and does not cause secondary pollution.

Description

technical field [0001] The invention belongs to the field of environmental pollution control, and in particular relates to a method for removing heavy metal ions in water bodies. Background technique [0002] With the development of industry and the impact of human activities, the situation of heavy metal pollution has become increasingly severe. Heavy metal pollution mainly comes from heavy metal-containing wastewater discharged from industries such as metallurgy, tanning, electroplating, machine manufacturing, and organic synthesis. Heavy metals in industrial wastewater mainly include lead, zinc, chromium, cadmium, copper, mercury, nickel, cobalt, manganese, vanadium, molybdenum, titanium, antimony, bismuth, etc., especially lead, zinc, chromium, cadmium, and copper are more toxic Large, they can cause serious pollution to the environment through the atmosphere, water, and food, and can be ingested and accumulated by the human body through the respiratory tract, digestive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F101/20C02F101/22
Inventor 徐卫华简浩刘云国王达菲顾岩岭谭小飞段国凤谢浩杜伟雄
Owner HUNAN UNIV
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