Advantages to microbes of growth in permeable aggregates in marine systems1

Highly porous microbial aggregates occur in a variety of environments ranging from marine snow in oceans to floes in biological reactors. For permeable aggregates undergoing gravitational settling or subjected to fluid shear, predicted velocities of intra-aggregate flow range from 1 to 100 pm s I. Estimation of intra-aggregate velocities requires spccihcation of the aggregate size, porosity, and permeability, as well as a mean fluid shear rate characterizing the fluid turbulence. We have examined substrate removal by microorganisms in permeable aggregates with an analysis of mass transfer. The overall uptake by bacteria in aggregates can be up to 60% greater than uptake by dispcrscd bacteria. In general, a model of substrate uptake based on advective transport is more appropriate than a model based on diffusive transport for cells in large, permeable aggregates that utilize substrates with diffusivities < 1 Op6 cm2 s-l.

[1]  B. Logan,et al.  Bioflocculation as a microbial response to substrate limitations , 1988, Biotechnology and bioengineering.

[2]  D. Lübbers,et al.  Investigations of oxygen transfer into Penicillium chrysogenum pellets by microprobe measurements , 1986, Biotechnology and bioengineering.

[3]  R. Dickson,et al.  Nepheloid layers on the continental slope west of Porcupine Bank , 1986 .

[4]  D. Caldwell,et al.  Local Influences on Shear-Flow Turbulence in the Equatorial Ocean , 1985, Science.

[5]  Ronald J. Gibbs,et al.  Estuarine flocs: Their size, settling velocity and density , 1985 .

[6]  T. Asano,et al.  Characterization of the size distribution of contaminants in wastewater: treatment and reuse implications , 1985 .

[7]  Channing R. Robertson,et al.  The immobilization of whole cells: Engineering principles , 1985 .

[8]  I. N. McCave.  Size spectra and aggregation of suspended particles in the deep ocean , 1984 .

[9]  A. Sukenik,et al.  Algal autoflocculation—verification and proposed mechanism , 1984, Biotechnology and bioengineering.

[10]  J. Hunt,et al.  Sewage sludge coagulation and settling in seawater. , 1984, Environmental science & technology.

[11]  Yogesh C. Agrawal,et al.  Direct optical assessment of large amorphous aggregates (marine snow) in the deep ocean , 1984 .

[12]  J. Navarro,et al.  Specific activity of Nitrobacter through attachment on granular media , 1984 .

[13]  P. Coackley,et al.  Diffusivity, tortuosity and pore structure of activated sludge , 1984 .

[14]  D. I. Wang,et al.  Effective diffusivity of oxygen in microbial pellets. , 1984, Biotechnology advances.

[15]  A. Alldredge,et al.  Primary production of marine snow during and after an upwelling event1 , 1983 .

[16]  S. Kjelleberg,et al.  Initial Phases of Starvation and Activity of Bacteria at Surfaces , 1983, Applied and environmental microbiology.

[17]  D. Kirchman.  The production of bacteria attached to particles suspended in a freshwater pond1 , 1983 .

[18]  J. Bright,et al.  Amino Acid Assimilation and Electron Transport System Activity in Attached and Free-Living Marine Bacteria , 1983, Applied and environmental microbiology.

[19]  J. Bright,et al.  Amino Acid Assimilation and Electron Transport System Activity in Attached and Free-Living Marine Bacteria , 1983, Applied and environmental microbiology.

[20]  I. Marc,et al.  Kinetics of Yeast Growth and Metabolism in Beer Fermentation , 1983 .

[21]  D. Blanchard,et al.  The mechanism of scavenging of waterborne bacteria by a rising bubble , 1983 .

[22]  Ferda Mavituna,et al.  Biochemical engineering and biotechnology handbook , 1982 .

[23]  D. Kirchman,et al.  Contribution of Particle-Bound Bacteria to Total Microheterotrophic Activity in Five Ponds and Two Marshes , 1982, Applied and environmental microbiology.

[24]  B. Atkinson,et al.  Biochemical engineering and biotechnology handbook. [Contains glossary] , 1982 .

[25]  C. Curds.  The ecology and role of protozoa in aerobic sewage treatment processes. , 1982, Annual review of microbiology.

[26]  W. G. Characklis.  Bioengineering report: Fouling biofilm development: A process analysis , 1981 .

[27]  P. Adler.  Streamlines in and around porous particles , 1981 .

[28]  J. Hunt.  Prediction of Oceanic Particle Size Distributions from Coagulation and Sedimentation Mechanisms , 1980 .

[29]  G. Batchelor,et al.  Mass transfer from small particles suspended in turbulent fluid , 1980, Journal of Fluid Mechanics.

[30]  J. Masliyah,et al.  Terminal velocity of porous spheres , 1980 .

[31]  J. Trent,et al.  Marine snow: sinking rates and potential role in vertical flux , 1980 .

[32]  G. Batchelor.  Mass transfer from a particle suspended in fluid with a steady linear ambient velocity distribution , 1979, Journal of Fluid Mechanics.

[33]  J. Trent,et al.  Marine snow: Microscale nutrient patches1 , 1979 .

[34]  N Tambo,et al.  PHYSICAL ASPECTS OF FLOCCULATION. I. THE FLOC DENSITY FUNCTION AND ALUMINUM FLOC , 1979 .

[35]  M. Silver,et al.  Marine Snow: Microplankton Habitat and Source of Small-Scale Patchiness in Pelagic Populations , 1978, Science.

[36]  M. Silver,et al.  In situ and laboratory measurements on macroscopic aggregates in Monterey Bay, California 1 , 1978 .

[37]  Yeun C. Wu.  Chemical flocculability of sludge organisms in response to growth conditions , 1978 .

[38]  J W Costerton,et al.  How bacteria stick. , 1978, Scientific American.

[39]  I. Goodarz-nia.  Floc density, porosity and void ratio in colloidal systems and aerosols , 1977 .

[40]  J. J. Morgan,et al.  The mechanism of E. coli aggregation by polyethyleneimine , 1977 .

[41]  G. Stewart,et al.  The identification, characterization, and mapping of a gene for flocculation in Saccharomyces sp. , 1977, Canadian journal of microbiology.

[42]  K. Matsumoto,et al.  Settling velocity of a permeable model floc , 1977 .

[43]  G. W. Fuhs,et al.  EFFECT OF THE SINKING RATE OF TWO DIATOMS (THALASSIOSIRA SPP.) ON UPTAKE FROM LOW CONCENTRATIONS OF PHOSPHATE 1 , 1976 .

[44]  M. Gasser.  [Significance of microorganisms found in throat swabs (author's transl)]. , 1976, Schweizerische Rundschau fur Medizin Praxis = Revue suisse de medecine Praxis.

[45]  G. Rosen.  The mathematical theory of diffusion and reaction in permeable catalysts , 1976 .

[46]  David F. Ollis,et al.  Biochemical Engineering Fundamentals , 1976 .

[47]  S. Nambu,et al.  Biochemical and physical properties of an activated sludge on settling characteristics , 1976 .

[48]  Alice L. Alldredge,et al.  Discarded appendicularian houses as sources of food, surface habitats, and particulate organic matter in planktonic environments , 1976 .

[49]  R. Mitchell,et al.  Inhibition of the flocculation of bacteria by biopolymers , 1975 .

[50]  J. Gavis,et al.  Transport limited nutrient uptake rates in Ditylum brightwellii1 , 1975 .

[51]  V. G. Collins,et al.  Detritus and its Role in Aquatic Ecosystems. , 1974 .

[52]  H. Jannasch.  Bacterial content of particulate matter in offshore surface waters1 , 1973 .

[53]  R. W. Sheldon,et al.  The Size Distribution of Particles in the OCEAN1 , 1972 .

[54]  Pavoni Jl,et al.  Bacterial exocellular polymers and biological flocculation. , 1972 .

[55]  Masahiro Kajihara.  Settling velocity and porosity of large suspended particle , 1971 .

[56]  Gordon A. Riley,et al.  Particulate Organic Matter in Sea Water , 1971 .

[57]  D. Sutherland,et al.  Sedimentation of a porous sphere , 1970 .

[58]  A. Acrivos,et al.  Heat and Mass Transfer from Small Spheres and Cylinders Freely Suspended in Shear Flow , 1968 .

[59]  E. Lightfoot,et al.  Oxygen diffusion through zoogloeal flocs , 1968 .

[60]  Paul L. Busch,et al.  Chemical interactions in the aggregation of bacteria bioflocculation in waste treatment , 1968 .

[61]  Toshiomi Yoshida,et al.  Studies on Submerged Culture of Basidiomycetes : (III) The Oxygen Transfer within the Pellets of Lentinus edodes , 1967 .

[62]  M. J. Johnson,et al.  Experimental evaluation of liquid film resistance in oxygen transport to microbial cells. , 1967, Applied microbiology.

[63]  S. Stanley,et al.  On the Clumping of Corynebacterium xerosis as Affected by Temperature , 1967 .

[64]  L. A. Hobson,et al.  THE SEASONAL AND VERTICAL DISTRIBUTION OF SUSPENDED PARTICULATE MATTER IN AN AREA OF THE NORTHEAST PACIFIC OCEAN1 , 1967 .

[65]  J. Mueller,et al.  Floc sizing techniques. , 1967, Applied microbiology.

[66]  R. Barber.  Interaction of Bubbles and Bacteria in the Formation of Organic Aggregates in Sea-Water , 1966, Nature.

[67]  W. Boyle,et al.  Nominal Diameter of Floc Related to Oxygen Transfer , 1966 .

[68]  P. Mill.  THE EFFECT OF NITROGENOUS SUBSTANCES ON THE TIME OF FLOCCULATION OF SACCHAROMYCES CEREVISIAE. , 1964, Journal of general microbiology.

[69]  W. Sutcliffe,et al.  DISSOLVED ORGANIC MATTER IN SEAWATER AS A SOURCE OF PARTICULATE FOOD1 , 1963 .

[70]  W. R. Gardner.  Physics of Flow through Porous Media , 1961 .

[71]  Adrian E. Scheidegger,et al.  The physics of flow through porous media , 1957 .

[72]  Koichi Yamada,et al.  Fundamental Studies on the Aerobic Fermentation , 1961 .

[73]  A. Polson,et al.  The Some Aspects of Diffusion in Solution and a Definition of a Colloidal Particle. , 1950 .

[74]  C. E. Zobell.  The Effect of Solid Surfaces upon Bacterial Activity , 1943, Journal of bacteriology.