Last edited by Nigore
Thursday, July 23, 2020 | History

3 edition of Bacterial disintegration of sulphur-containing sealing compound in pipe joints found in the catalog.

Bacterial disintegration of sulphur-containing sealing compound in pipe joints

T. D. Beckwith

Bacterial disintegration of sulphur-containing sealing compound in pipe joints

by T. D. Beckwith

  • 209 Want to read
  • 14 Currently reading

Published by University of California Press in Berkeley, Calif .
Written in English

    Subjects:
  • Water -- Microbiology,
  • Sulphur compounds,
  • Pipe joints

  • Edition Notes

    Bibliography: p. 128.

    Statementby T.D. Beckwith and P.F. Bovard.
    SeriesPublications of the University of California at Los Angeles in biological sciences., v. 1, no. 7
    ContributionsBovard, Paul Fountain.
    Classifications
    LC ClassificationsQH1 .C115 vol. 1, no. 7
    The Physical Object
    Pagination1 p. l., p. 121-131 incl. pl., tables.
    Number of Pages131
    ID Numbers
    Open LibraryOL6359671M
    LC Control Number37027635
    OCLC/WorldCa9803028

      1. Mixing tank with inlet pipe and sand trap. 2. Digester. 3. Compensation and removal tank 4. Gasholder. 5. Gaspipe. 6. Entry hatch, with gastight seal. 7. Accumulation of thick sludge. 8. Outlet pipe. 9. Reference level. Supernatant scum, broken up by varying level. Construction -Fixed Dome Type Biogas Plant Working-Fixed Dome. Polymer degradation is a change in the properties—tensile strength, color, shape, etc.—of a polymer or polymer-based product under the influence of one or more environmental factors such as heat, light or chemicals such as acids, alkalis and some changes are usually undesirable, such as cracking and chemical disintegration of products or, more rarely, desirable, as in.

      Sulfur-reducing bacteria (SRB) and archaea are a taxonomically diverse group of prokaryotes (Finster et al. b; Schauder et at. ) which use elemental sulfur (S⁰) as their terminal electron acceptor (TEA) by reducing it to hydrogen sulfide (H 2 S) (Pfennig, and Biebl ), to generate energy.. The first SRB species to be discovered was Desulfuromonas acetoxidans which was isolated . Packaging material – Any material used in the fabrication or sealing of a packaging system or primary package (ref. ISO – (E)). Packaging supply chain – The steps required to create and manufacture the packaging, package the product, distribute the packaged product and sell it in the stores, through point-of-purchase (POP.

    The sulphur-containing amino acids of the proteins such as cyst eine, cystine, and methionine undergo desulfhydralation and decomposition by bacteria, yielding hydrogen sulphide gas, sulphides. Contaminated sulphur clean-up can be a daunting task. It is natural to seek the cheapest and quickest methods of removal.


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Bacterial disintegration of sulphur-containing sealing compound in pipe joints by T. D. Beckwith Download PDF EPUB FB2

Get this from a library. Bacterial disintegration of sulphur-containing sealing compound in pipe joints. [T D Beckwith; Paul Fountain Bovard]. Volatile organic compounds present in the sewer atmosphere could support the growth of heterotrophic bacteria on corroding concrete.

In addition, since Acidithiobacillus excretes self-inhibitory organic compounds, it requires a mutualistic relationship with heterotrophs that can degrade such inhibitory organic compounds (7, 14, 34, 44).Cited by: A. Camacho, in Encyclopedia of Inland Waters, Sulfate and sulfur reduction.

Oxidized sulfur compounds can be used as terminal electron acceptor for the anaerobic respiration of organic matter by sulfate- and sulfur-reducing bacteria producing hydrogen sulfide (H 2 S). These bacteria are commonly heterotrophic, obtaining organic matter from external sources, although some strains can be.

Sulfur bacterium, plural Sulfur Bacteria, any of a diverse group of microorganisms capable of metabolizing sulfur and its compounds and important in the sulfur cycle (q.v.) in of the common sulfur substances that are used by these bacteria as an energy source are hydrogen sulfide (H 2 S), sulfur, and thiosulfate (S 2 O 3 2-).The final product of sulfur oxidation is sulfate (SO 4 2-).

THE essential function of sulphate-reducing bacteria in the external corrosion of ferrous pipes in anaerobic soils is now generally recognized, but little consideration has been given to the part Cited by:   Sulfate-reducing bacteria (SRB) are a major bacterial group involved in microbiologically influenced corrosion (MIC) [1, 2].

The role of SRB in iron corrosion can be divided into direct corrosion and indirect corrosion. Indirect corrosion is the chemical attack by hydrogen sulfide [3, 4] or other acidic organisms [5, 6].

[73] For instance, phenylalanine degradation by bacteria results in phenylethyl alcohol formation, [74] tryptophan is converted to indole, [47] and cysteine and methionine lead to formation of.

Sulfate-reducing bacteria are considered as a possible way to deal with acid mine waters that are produced by other bacteria. SRB are capable of causing severe corrosion of iron material in a water system because they produce enzymes which have the power to accelerate the reduction of sulphate compounds to the corrosive hydrogen sulphide, thus.

There was no shrinkage. % expansion at various times 24 hrs. 1 48 hrs. 3 days 7 days 1 14 days | 21 days 28 days 1 Vapors from processing malt caused extensive disintegration of joints in ceramic tile wall> providing voids for growth of bacteria.

Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software. An illustration of two photographs.

Images. An illustration of a heart shape Donate. An illustration of text ellipses. More. An icon used to represent a menu that can be toggled by interacting. Bacteria reduce the sulphur-containing organic compounds and. leakages in the structure of the pipe or the pipe joints: a socket cementing compounds consisting of.

Abstract. A new chemolithotrophic bacterial metabolism was discovered in anaerobic marine enrichment cultures. Cultures in defined medium with elemental sulfur (S 0) and amorphous ferric hydroxide (FeOOH) as sole substrates showed intense formation of rmore, precipitation of ferrous sulfide and pyrite was observed.

Sulfuric acid is one of the most widely used chemicals across a range of e this ubiquity, however, each sulfuric acid application requires careful material selection and evaluation, as the wrong gasket will quickly deteriorate, posing a multitude of risks.

In-ground sulfur sealing, or commonly known as Seal legs, is traditionally what has been in use for refineries for over 50 years. Referring to figure 2 the way Seal legs work is very similar an elbow in the sinks, and toilets, they maintain a liquid barrier between the. This excellent paper and subsequent discussion deal with the bacterial corrosion of iron and steel, a subject of fundamental importance to water, sewage, oil and gas undertakings.

Such corrosion may be the result of bacterial reduction, bacterial oxidation, or of both. The series of processes "interlock, '' and the mode of attack upon the metal is liable to alter with changes in the. Vinidex technical information is drawn from worldwide research and field experience with advanced pipes and fittings systems and technology.

It is published to give users a better understanding of the technicalities of our products and their selection, design, installation, and use.

Testing for the sulfur content in rubber compounds is an important aspect of understanding performance properties. Many elastomers are chemically cross-linked with sulfur. This sulfur cure or vulcanization process imparts the recovery properties for which rubber is noted.

Resistance to mould, fungi and bacteria can be improved by including antimicrobial additives (also known as fungicides or biocides), uniformly distributed throughout the polymer (or adhesive), during the compounding process or alternatively by applying a suitable protective coating and/or sealant around the exposed edges of the adhesive joint.

From the start bacterial suspension a dilution was made containing 1 mL of the start bacterial suspension and 9 mL of distilled water. From the dilution, subsequent dilutions were made and were used in the construction of the curve. The dilutions were the following (in duplicate):, After this, the optical.

Hydrogen sulfide oxidation on sewer pipe surfaces was investigated in a pilot scale experimental setup. The experiments were aimed at replicating conditions in a gravity sewer located immediately downstream of a force main where sulfide related concrete corrosion and odor is often observed. Glossary of Waterproofing Terms: Blind-side waterproofing: Installation of waterproofing membranes and drainage before the concrete foundation is poured.

Capillary action: Movement of liquid in porous materials or thin tubes (capillaries), due to attraction between the molecules of the liquid and those of the solid.

Condensation: The change in phase from a gas to a liquid, as when water vapor.Partial or nearly full-length bacterial 16S rRNA gene sequences were amplified using the bacteria-specific primer set f/r and 8f/r, respectively, and sequenced as described above. In case of sulfate-reducing strains, DNA was sequenced in both directions using the respective PCR primers and the service of GATC Biotech AG (Konstanz.Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion Librivox Free Audiobook Barry Finnerty's "START" (WARNING!