Research On Filtration Of Arsenic Oxidation Bacterium In Arsenic Contamination Soil

This research is main at Guangdong province yingde city indigenous method refinearsenic abolish address zoology resume item to go along prophase research,Study greatconcentration arsenic pollution how to affect soil microbe zoology and how utilize microbe todepress arsenic toxicity,and assist plant to restore pollution soil,restore abolish addresszoology function,unchain intimidation to riverhead water and people health.Arsenic contamination and exposure,because of its toxicity and carcinogenicity,causedgreat concern. Hower,the hazerard of soil arsenic contamination,which usually fails to noticeand consider,has not became an important environmental issue. Conventional technology hasnot adapt to remeditated arsenic contaminated soil effectively and economically.Chengtongbin,Chinese academy of science geographic and resource graduate schoolenvironment restore chamber boffin,first discover arsenic hyperaccumulator-P.vittata andPteris nevosa at international,and set up first plant restore base at Asia territory. Compareother technology,plant restore technology have economy,high-powered,green cleanse and isprone to disposal afterward. It show favorable zoology economy,society benefit and haveexpansive application foreground. Only using Plant to restore contamination land,It need along time,Plant unite microbe restore may shorten restore time. Plant unite microbe restoreis this a means,It plus filter,have upper oxidation microbe,expedite absorb arsenic andenrichment arsenic,shorten disposal system restore hour,make system fast achieve upperwipe off effect. This aspect application have no report even today. Now this aspect experimentlocate at try research moment.It is also innovation of this research.This research enrich and separate two arsenic oxidation bacterium from arsenic pollutionsoil.Study bacterium oxidation best condition,When pH is 8 and temperature is 30℃andsurge speed is 180r/min,bacterium have a good growth,using physiological experimentationto study bacterium characteristic,using Biolodge to mensurate carbon source of bacterium,B_1dbacterium may utilize A3 (Dextrin),A5 (Tween 40),E2 (Itaconic Acid) as carbonsource. B_6a bacterium may utilize A3- Dextrin,A5- Tween 40,A6-Tween 80,A10(L-Arabinose),A12 (D-cellobiose),B1 (i-Erythritol),B2 (D-Fructose) B4(D-Galactose),B5 (Gentiobiose),B6 (α-D-Glucose),B8 (α-D-Lactose),B9 (Lactulose),B10 (Maltose),B11(D-Mannitol),B12(D-Mannose),C1(D-Melibiose),C2(β-Methyl-D-Glucoside),C4 (D-Raffinose),C6 (D-Sorbitol),C7 (Sucrose),C8 (D-Trehalose),C9 (Turanose),D6 (D-Galacturonic Acid),E9 (Quinic Acid),E10(D-Saccharic Acid),F2 (Succinamic Acid) as carbon source.Studing arsenic oxidation bacterium for its tolerance,As-tolerance of arsenic oxidationbacterium is a key factor in determination of its adoptive range for arsenic oxidationbacterium remediation,arsenic oxidation bacterium have aquite strong toleranc,utilize 16 SrDNA sequence analytical method to appraise bacterium,Result show,16 S rDNA nucleicacids sequence of bacterium and Delftia have same companion.