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Preparation method active-carbon-loaded of arsenic removal material organism

A technology of activated carbon and activated carbon particles, applied in chemical instruments and methods, water/sludge/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of low adsorption capacity, poor arsenic removal effect, and high preparation cost, and achieve adsorption The effect of high capacity, easy separation and low preparation cost

Inactive Publication Date: 2013-09-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high preparation cost of the existing artificially synthesized arsenic removal adsorption materials, the existing natural arsenic removal adsorption materials have the problems of low adsorption capacity and poor arsenic removal effect, and provide an activated carbon-loaded biological arsenic removal Material preparation method

Method used

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  • Preparation method active-carbon-loaded of arsenic removal material organism
  • Preparation method active-carbon-loaded of arsenic removal material organism

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specific Embodiment approach 1

[0009] Specific embodiment 1: This embodiment is an activated carbon-loaded biological arsenic removal material prepared by loading a composite bio-flocculant on the surface of coal-based amorphous activated carbon particles, wherein the loading of the composite bio-flocculant is 1%. ~3%.

[0010] Bioflocculant is a kind of polymer metabolites produced by microorganisms. It is cheap, non-toxic, and has no secondary pollution. It can effectively remove harmful substances such as suspended solids and metal ions in water, and is widely used in drinking water. Water treatment, wastewater treatment, food industry and fermentation industry and other fields.

[0011] Compared with a single biological flocculant, under the same dosage, the activated carbon-loaded biological arsenic removal material prepared in this embodiment has better dispersibility, which is beneficial to its adsorption function.

[0012] Since the composite bioflocculant and coal-based amorphous activated carbon ...

specific Embodiment approach 2

[0016] Specific embodiment two: The difference between this embodiment and specific embodiment one is: the BET specific surface area of ​​the coal-based amorphous activated carbon particles is 800m 2 / g~1300m 2 / g, the total pore volume is 0.4cm 2 / g~0.6cm 2 / g. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the composite bioflocculant is mixed cultured and separated by floc strains Rhizobium radiobacter and Bacillus sphaeicus in sequence. Extracted; the Rhizobium radiobacter is preserved in the American Type Culture Collection, and the preservation number is ATCC4525; the Bacillus sphaeicus is preserved in the General Microorganism Center of the China Microbiological Culture Collection Management Committee, and the preservation number is It is CGMCC1.270. Others are the same as in the first or second embodiment.

[0018] The Rhizobium radiobacter described in this embodiment has been disclosed in the Chinese invention patent "A method of fermenting biological flocculants using mycelium balls as a carrier, application number: 201110173489.9, application date: June 24, 2011".

[0019] The Bacillus sphaeicus described in this embodiment has been disclosed in the Chinese invention patent "A met...

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Abstract

The invention discloses an arsenic removal material prepared through active-carbon-loaded organism, relates a preparation method of the active-carbon-loaded biological materials, and aims at solving the problems that the existing artificially synthesized arsenic removal adsorbing material is high in preparation cost, and the existing natural arsenic removal adsorbing material is low in absorbing capacity and poor in arsenic removal effect. The arsenic removal material prepared through active-carbon-loaded organism is prepared by loading a compound type bioflocculant on the surface of a coaly amorphous active carbon particle. The method comprises the following steps: (1) preparing bioflocculant agent dispersion liquid; (2) adjusting the PH value of the biofocculant agent dispersion liquid to be 7.5-8.0; (3) adding coaly amorphous active carbon particles for loading; and (4) separating, washing and drying in sequence so as to obtain the arsenic removal material prepared through active-carbon-loaded organism. The method is mainly used for preparing the arsenic removal material prepared through active-carbon-loaded organism.

Description

technical field [0001] The invention relates to a preparation method of activated carbon loaded biological material. Background technique [0002] Arsenic is a highly toxic non-metallic element widely distributed in nature and often exists in the form of compounds. The two most important and most toxic forms are arsenic (III) and arsenic (V) compounds. Arsenic (V) or arsenates, including AsO 4 3- , HAsO 4 2- and H 2 AsO 4 - , arsenic (III) arsenite, including AsO 2 - , As(OH) 3 , As(OH) 4 - , AsO 2 Oh 2- , and AsO 3 3- . Arsenic and arsenic compounds can cause various diseases after ingestion in the human body. In China's Taiwan, Inner Mongolia and Xinjiang, Chile, Mexico, India and Pakistan, a large number of people have arsenic poisoning due to ingestion of arsenic in natural groundwater. [0003] As the health problems caused by arsenic pollution in groundwater have attracted much attention, the treatment technology for arsenic-containing water has become...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/56C02F1/62
Inventor 马放王丽丽刘小为陈忠林杨基先
Owner HARBIN INST OF TECH
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