Method for removing suspended particulate matters from urban air by using soil algae

A technology for suspended particles and algae, applied in the biological field, can solve the problems of high cost of use, and achieve the effects of efficient use of space, recovery of biological activity, and simple operation and maintenance

Active Publication Date: 2014-05-14
WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal of suspended particles in indoor air mainly uses physical adsorption method, and the adsorption materials are mostly used for one-time use, and the use cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for quickly removing suspended particles in the air, comprising the steps of:

[0015] A. Preparation of algae species: Collect blue-green soil crusts after moderate rain in sandy land, soak in sterile water for 12 or 24 hours, insert BG11 solid medium (1.2g agar / 100ml solution), and place at 70μEm -2 the s -1 Continuously cultivate for 30 days under the condition of 25°C under light, pick out the algae, observe and identify under the microscope; put the petri dish after the identification of the algae species under the binocular stereo microscope to observe, and use the capillary to pick out the required algae species. Wash in several drops (5-20 drops) of sterilized BG11 medium solution successively on a sterile glass slide, then inoculate into agar plate medium, culture for 30 days under the above conditions and transfer to 50ml liquid BG11 medium Middle; culture the purified algae species Microcoleoptera, Paleopsis, Pseudocladon, Schizophrenia, Nostoc, and...

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Abstract

The invention discloses a method for removing suspended particulate matters from urban air by using soil algae. The method comprises the following steps of: (a), preparation of algae strains: grinding and flattening a crust layer on the surface of soil, transferring the generated bacterial colony from a solid culture medium to a BG11 liquid culture medium, and screening dominant strains; (b), algae culture: culturing a large quantity of screened algae strains in an open runway culture tank by using the BG11 liquid culture medium; (c), assembly of algae and carriers: mixing dry algae powder and cotton fibers serving as the carriers and weaving into grey cloth, or coating algae filaments in calcium alginate granules serving as the carriers; and (d), use and maintenance of an algae-carrier composite system: directly hanging the woven wick cotton grey cloth on an outer wall of a building or a railing of a road, and preparing curtains from the calcium alginate granules, wherein the curtains are mainly hung indoors. By the method, adsorption and fixation are realized; and permanent fixation of the suspended particulate matters is realized, and the adsorption and fixation capabilities of the algae are not limited at a low temperature due to the eurythermal property of the algae.

Description

technical field [0001] The invention belongs to the field of biotechnology, and more specifically relates to a method for soil cyanobacteria to adsorb and fix suspended particles in the air, which is suitable for rapid removal of suspended particles in outdoor or indoor air in cities and prevents secondary suspension. Background technique [0002] With the development of social economy and the acceleration of urbanization, the suspended particulate matter in the air caused by motor vehicle exhaust emissions and construction projects has increased rapidly. These fine particles are small in size and light in weight. They float in the air for a long time and have a great impact on people's production and life. Some fine particles can enter the lungs of the human body through the respiratory system and cause harm to human health. At present, urban construction reduces the content of suspended particulate matter in the air by increasing investment in greening and expanding the gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D49/00
Inventor 王伟波张全发
Owner WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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