What's the difference between sediment and sludge?

Sediment


Definition:

  • (n.) The matter which subsides to the bottom, frrom water or any other liquid; settlings; lees; dregs.
  • (n.) The material of which sedimentary rocks are formed.

Example Sentences:

  • (1) This clinical improvement was also associated with a decrease of erythrocyte sedimentation rate (p less than 0.001), decrease of C-reactive protein (p less than 0.0001) and with improvement of anaemia (p less than 0.05).
  • (2) The erythrocyte sedimentation rate is almost always markedly elevated.
  • (3) Histone mRNA, labeled with 32P or 3H-methionine during the S phase of partially synchronized HeLa cells, was isolated from the polyribosomes and purified as a "9S" component by sucrose gradient sedimentation.
  • (4) In cases without septic complications the level returned to normal within seven days, while the sedimentation rate only became normal after three months.
  • (5) The distance of nucleoid sedimentation increased as a function of exposure temperature and exposure time, and was proportional to an increased protein to DNA ratio in the nucleoids.
  • (6) Urinalysis revealed a low pH, increased ketones and bilirubin excretion, dark yellowish change in color, the appearance of "leaflet-shaped" crystals and increased red blood cells and epithelial cells in the urinary sediment, increased water intake, decreased specific gravity and decreased sodium, potassium and chloride in the urine.
  • (7) Neutral sucrose density sedimentation patterns indicate that neutron-induced double strand-breaks sometimes occur in clusters of more than 100 in the same phage and that the effeciency with which double strand-breaks form is about 50 times that of gamma-induced double strand-breaks.
  • (8) Partially purified VLPs were found to sediment at 183S in sucrose gradients and to cross-react with antibody in acute phase sera from geographically isolated cases of ET-NANBH.
  • (9) The following factors were studied: relative ability to adsorb virus, sedimentation of the adsorbing components, heat lability of the components, virus elution, and recovery of cell-associated virus.
  • (10) Other than an elevated erythrocyte sedimentation rate, there are no consistent laboratory abnormalities, and cultures of affected bone are negative.
  • (11) A molecular weight of 51,500 was determined from sodium dodecyl sulfate polyacrylamide gel electrophoresis, while sedimentation equilibrium ultracentrifugation gave a value of 49,500.
  • (12) Mononucleosomes obtained from labeled cells were fractionated by rate zonal sedimentation through a sucrose gradient in heavy water (Senshu et al.
  • (13) Microbiological analyses of sediments located near a point source for petrogenic chemicals resulted in the isolation of a pyrene-mineralizing bacterium.
  • (14) The major form, an amphiphilic dimer (G2a) which sediments at 5.3 S, and the minor form, an amphiphilic monomer (G1a) which sediments at 3.5 S. Extraction in the presence of the sulfhydryl alkylating agent N-ethylmaleimide was required to preserve the G2a form.
  • (15) A sedimentation coefficient of 5.6S was also determined.
  • (16) Seventy-four strains of Aeromonas hydrophila isolated from water and sediments of the River Porma (León, N.W.
  • (17) Human granulocytes from the peripheral blood of healthy donors were subjected to transient gravity sedimentation analysis in Ficoll density gradient columns (37 degrees C) containing different concentrations of Escherichia coli endotoxin-activated serum and medium 199.
  • (18) Sedimentation-velocity experiments indicate the M. elsdenii enzyme (s20,w = 4.95 S) to be essentially globular, while the D. vulgaris enzyme (s20,w = 4.1 S) has a less symmetric shape.
  • (19) Membranes were fractionated into material that sedimented at 20,000g and 100,000g.
  • (20) The flounder developed renal and pancreatic neoplasms and hepatotoxic neoplastic precursor lesions, demonstrating trophic transfer of sediment-bound carcinogens up the food chain.

Sludge


Definition:

  • (n.) Mud; mire; soft mud; slush.
  • (n.) Small floating pieces of ice, or masses of saturated snow.
  • (n.) See Slime, 4.

Example Sentences:

  • (1) A clinical investigation was made between workers exposed to dried sewage sludge dust and age matched controls not exposed.
  • (2) The basic pathways of its transformation were oxidation via formiate to CO2 with its partial reutilization and direct incorporation into the sludge biomass via the primary formation of serine.
  • (3) Since some genotoxic metals are diffused in the environment and are often sequestered as insoluble precipitates in water sediments and sludges, the introduction of NTA is likely to increase the risk of environmental pollution because of its ability to solubilize and make those metals reactive.
  • (4) Histological examination suggested that the gall sludge in the pancreatic cyst was caused by the reflux of bile into the pancreatic duct through the papilla of Vater.
  • (5) Distribution of polychlorinated biphenyls (PCB) in sewage wastes at a municipal sewage treatment plant was studied, showing that the great bulk of PCBs entering such a treatment plant become adsorbed onto the grit chamber solids and the sludge that is passed from the anaerobic digesters.
  • (6) In contrast to widespread distribution of PCBs in the environment, PCT residues were seldom found in samples from aquatic environments such as water and sludge and waterfowl and fish, and, if found, the levels of PCTs were so low as to be practically negligible.
  • (7) Gallbladder sludge produced internal echoes without a sonic shadow.
  • (8) Issues in differential diagnosis are discussed for the following findings: internal gallbladder echoes (calculi vs tumefactive sludge, air, hematobilia, parasitic infestation, cholecystosis, neoplasia, and artifacts), gallbladder wall thickening (acute cholecystitis vs acalculous cholecystitis, artifacts, ascites, hypoalbuminemia, hepatitis, and sclerosing cholangitis), pericholecystic fluid (cholecystitis vs ascites, perforated ulcer, and trauma), bile duct dilatation (biliary obstruction vs sclerosing cholangitis, biliary air, anomalous portal system, biliary atresia, Caroli disease, and cholangiocarcinoma), perinatal and neonatal biliary disease, and sclerosing cholangitis.
  • (9) However, no countermeasures for this have been developed, nor has any system for the measurement of the H2S held in sewerage water and sludge been established yet.
  • (10) At present it is not possible to quantify the effects attributed to acid rain only; account must be also be taken of cadmium added to, e.g., soil by use of sewage sludge and other fertilizers.
  • (11) Activated sludge extracts made from different treatment plants varied in efficacy in evoking maximal viable counts.
  • (12) Most obvious differences can be found for Cd: While the concentrations of soluble Cd in anaerobically digested sludge only increase at pH values lower than pH 4, the solubility of Cd in precipitation sludge and limed sludges already show rapid increases at pH values lower than 7.
  • (13) The microbiological composition of broiler and pig sludge did not differ.
  • (14) The transformation and toxicity of trichlorophenols (TCPs) were studied with a methanogenic enrichment culture derived from sewage sludge.
  • (15) Counts of all fungi were significantly increased at certain treatments with sludge, except those of Aspergillus niger (at the high dose after 6 weeks), Fusarium (at each of the three doses after 3 weeks and at the high dose after 6 weeks) and Paecilomyces varioti (by the medium and the high doses after 1 week) whose counts were significantly lower than those in untreated soil.
  • (16) The infectious agent, S. typhi-murium, was isolated not only from several inmates but also from sick cows of the farm belonging to the home, in animal feed, from employees of the local butcher's shop, and finally in sludge from the local sewage plant.
  • (17) The transitive cerebral distension which is necessary for the neuro-surgeon during interventions is obtained by moderate controlled hyperventilation, deliberate arterial hypotension, application of the anti-sludge therapy for the cerebral microcirculation.
  • (18) This technique proved to be rapid and reliable for the enumeration of salmonellae in water, waste water, and waste-water sludges.
  • (19) These elements originated from the wastewater sludge.
  • (20) Although ultrasound is effective in demonstrating the anatomical features of prolonged gallbladder stasis including sludge, stones, and thickened gallbladder wall, it cannot detect cystic duct patency.