title: [Study of inactivating sulfate reducing bacteria with zero-valent iron nanoparticles].
abstract: This research investigates the ability and effect of nanoscale zero-valent iron (NZVI) particles in inactivating sulfate-reducing bacteria; and conjectures the mechanism through observing transformation of SRB and NZVI. According to the research results, when adding 0, 1, 2, 5, and 10 mg/mL NZVI to the injection water, the inactivating rate of SRB would be 0, 75.6%, 90.0%, 99.9% and 99.9%. The dyeing and ESEM results show that NZVI adsorbs closely to the SRB cell when inactivating SRB, and it is oxidated on the surface of the bacteria cells. 5 mg/mL NZVI kills SRB greatly and the inhibition may mainly through coating the cells, inhibiting cell proliferation, rather than destroying the cellular structure.
authors.affiliation: College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. shuzyfairfaith@gmail.com
authors.forename: Zhong-Ya
authors.initials: ZY
authors.lastname: Shu
authors.forename: Jie
authors.initials: J
authors.lastname: Wang
authors.forename: Yi
authors.initials: Y
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D007501:Iron / Q000494:pharmacology*; D053768:Metal Nanoparticles / Q000737:chemistry*; D013431:Sulfates / Q000378:metabolism*; D016999:Sulfur-Reducing Bacteria / Q000187:drug effects* / Q000378:metabolism*
chemical_list: D013431:Sulfates; D007501:Iron