LABORATORY INVESTIGATIONS ON THE ROLE OF SEDIMENT SURFACE AND GROUNDWATER CHEMISTRY IN TRANSPORT OF BACTERIA THROUGH A CONTAMINATED SANDY AQUIFER

被引:148
作者
SCHOLL, MA
HARVEY, RW
机构
[1] US GEOL SURVEY,DIV WATER RESOURCES,US4,325 BROADWAY,COLORADO,CO 80303
[2] US GEOL SURVEY,DIV WATER RESOURCES,MENLO PK,CA 94025
关键词
D O I
10.1021/es00031a020
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The effects of pH and sediment surface characteristics on sorption of indigenous groundwater bacteria were determined using contaminated and uncontaminated aquifer material from Cape Cod, MA. Over the pH range of the aquifer (5-7), the extent of bacterial sorption onto sediment in uncontaminated groundwater was strongly pH-dependent, but relatively pH-insensitive in contaminated groundwater from the site. Bacterial sorption was also affected by the presence of oxyhydroxide coatings (iron, aluminum, and manganese). Surface coating effects were most pronounced in uncontaminated groundwater (pH 6.4 at 10-degrees-C). Desorption of attached bacteria (up to 14% of the total number of labeled cells added) occurred in both field and laboratory experiments upon adjustment of groundwater to pH 8. The dependence of bacterial sorption upon environmental conditions suggests that bacterial immobilization could change substantially over relatively short distances in contaminated, sandy aquifers and that effects caused by changes in groundwater geochemistry can be significant.
引用
收藏
页码:1410 / 1417
页数:8
相关论文
共 47 条
[1]   BACTERIOPHAGE ADSORPTION DURING TRANSPORT THROUGH POROUS-MEDIA - CHEMICAL PERTURBATIONS AND REVERSIBILITY [J].
BALES, RC ;
HINKLE, SR ;
KROEGER, TW ;
STOCKING, K ;
GERBA, CP .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1991, 25 (12) :2088-2095
[2]  
BARBER LB, 1990, THESIS U COLORADO BO
[3]   EXTRACTION TECHNIQUES FOR SELECTIVE DISSOLUTION OF AMORPHOUS IRON-OXIDES FROM SOILS AND SEDIMENTS [J].
CHAO, TT ;
ZHOU, L .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1983, 47 (02) :225-232
[4]  
CORAPCIOGLU MY, 1984, J HYDROL, V72, P149
[5]   ADSORPTION OF NATURAL DISSOLVED ORGANIC-MATTER AT THE OXIDE WATER INTERFACE [J].
DAVIS, JA .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1982, 46 (11) :2381-2393
[6]  
DAVIS JA, 1990, MINERAL WATER INTERF, P177
[7]   KINETICS OF DEPOSITION OF COLLOIDAL PARTICLES IN POROUS-MEDIA [J].
ELIMELECH, M ;
OMELIA, CR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (10) :1528-1536
[8]   INFLUENCE OF SUBSTRATUM CHARACTERISTICS ON THE ATTACHMENT OF A MARINE PSEUDOMONAD TO SOLID-SURFACES [J].
FLETCHER, M ;
LOEB, GI .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1979, 37 (01) :67-72
[9]   PHYSICAL AND CHEMICAL FACTORS INFLUENCING TRANSPORT OF MICROORGANISMS THROUGH POROUS-MEDIA [J].
FONTES, DE ;
MILLS, AL ;
HORNBERGER, GM ;
HERMAN, JS .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1991, 57 (09) :2473-2481
[10]   RELATIONSHIP BETWEEN CELL-SURFACE PROPERTIES AND TRANSPORT OF BACTERIA THROUGH SOIL [J].
GANNON, JT ;
MANILAL, VB ;
ALEXANDER, M .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1991, 57 (01) :190-193