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Title: |
The Fungus Biological Materials of Efficient Adsorption of Heavy Metals in Sewage |
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Source: |
Conference on Environmental Pollution and Public Health (CEPPH 2010 E-BOOK)
(pp 217-221)
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Author(s): |
Xinsheng He, School of life Science and Engineering，Southwest University of Science and Technology，Mianyang, Sichuan,China, 621010
Qi Lin, School of life Science and Engineering，Southwest University of Science and Technology，Mianyang, Sichuan,China, 621010
Junjuan Zheng, School of life Science and Engineering，Southwest University of Science and Technology，Mianyang, Sichuan,China, 621010
Chunyan Jiang, School of life Science and Engineering，Southwest University of Science and Technology，Mianyang, Sichuan,China, 621010 |
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Abstract: |
The pure strains has been artificial purified from collected local wild red oyster mushroom specimens, then a single spore strains has obtained by cultivation of the fruiting body of the pure strains. Through the hybridization of single spores, numbers of new strains in which the content of cellulose of the fruiting bodies was more than 25% has obtained. The straw, wheat straw, sawdust and other materials in the 1% lime treatment with 24h then inoculation, the new strains can grow in temperature range of 15 to 38℃ and can turn into mushroom after 20~25d.The production of the dry mushroom is 20% to 25% of dry weight of raw materials. Crushed the cultivation of fruiting bodies, with treatment of the acid and alkali, mushroom fiber has obtained by the later crushing. The production of mushroom fiber is about 20% of the dry mushroom. By using the mushroom fiber powder as bio-absorption materials, such as copper, zinc, chromium, mercury concentration of 1~250mg/L of heavy metals in waste water can be treated, of which the absorption rate is 60% to 80%; of which the adsorption rate is 50% to 70% in treatment concentration of 1~250mg/L of uranium and other radionuclide waste water. The effect of the adsorption is stable. The absorbed heavy metals and radionuclide with acid elution, the efficiency rate of which is higher than 95%, are easily recycled. This material has not only a promising future in the treatment of waste water, special industrial waste water, waste water in the nuclear environment but also has a great significance for environmental protection.
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