Search results for: SULFUR CYCLE

• Incorporation of the sulfur cycle in sustainable nitrogen removal systems - A review

  Publication

  • D. Derwis
  • Z. Yin
  • J. Majtacz
  • H. Al-Hazmi
  • J. Mąkinia

  - JOURNAL OF CLEANER PRODUCTION - Year 2022

  In wastewater treatment systems, sulfur (S) removal processes are generally based on heterotrophic sulfate (SO42−) reduction by sulfate reducing bacteria and S-dependent autotrophic denitrification by sulfur oxidizing bacteria. A combination of either two cycles (N and S) or three cycles (N, S and C) appears to be a viable approach to sustainable wastewater treatment, resulting in energy savings and reduction of sludge production....

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• The role of the combined nitrogen-sulfur-carbon cycles for efficient performance of anammox-based systems

  Publication

  • D. Derwis
  • H. Al-Hazmi
  • J. Majtacz
  • P. Kowal
  • S. Ciesielski
  • J. Mąkinia

  - SCIENCE OF THE TOTAL ENVIRONMENT - Year 2024

  The combined anammox/mixotrophic denitrification process was conducted in two granular sequencing batch reactors (SBRs) during a 200-day operation. Both reactors were fed with synthetic medium, but SBR2 was enriched with additional sulfate (SO4 2 ) which influenced sulfate reduction ammonium oxidation (SRAO) and heterotrophic reduction of SO4 2 by sulfate reducing bacteria. It was hypothesized that the addition of SO4 2 could...

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• CELL CYCLE

  Journals

  ISSN: 1538-4101 , eISSN: 1551-4005

• Water Cycle

  Journals

  eISSN: 2666-4453

• Sulfur compounds: Gas chromatography

  Publication

  • W. Wardencki

  - Year 2014

  Sulfur compounds, due to their properties, are responsible for the damage of our environment. For this reason sulfur containing compounds are of constant concern in many fields. Gas chromatography (GC), due to combination of separation capability and sensitive detection is a prime technique for the analysis of thes compounds in various matrices. The chapter rewies general problems of the determination of these compounds by GC and...

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• Organic Rankine cycle as bottoming cycle to a combined Brayton and Clausius - Rankine cycle

  Publication

  • D. Mikielewicz
  • E. Żmuda

  - Year 2013

  A preliminary evaluation has been made of a possibility of bottoming of a conventional Brayton cycle cooperating with the CHP power plant with the organic Rankine cycle installation. Such solution contributes to the possibility of annual operation of that power plant, except of operation only in periods when there is a demand for the heat. Additional benefit would be the fact that an optimized backpressure steam cycle has the advantage...

• Removal of sulfur from a solvent extract

  Publication

  • A. Mechlińska
  • L. Wolska
  • J. Namieśnik

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Year 2012

  The presence of sulfur in a solvent extract that is to be analyzed chromatographically impairs and sometimes precludes properinterpretation of the chromatogram, as the sulfur peak masks the peaks of other compounds present in the sample, and sulfur alsodisrupts the operation of the mass detector. This means that discrepancies in the results can lead to erroneous interpretations andfalse assessments of environmental risk. For this...

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• Selectivity of amperometric sulfur dioxide sensor.

  Publication

  • B. Chachulski

  - Year 2004

  W pracy przedstawiono wartości współczynników selektywności amperometrycznego czujnika ditlenku siarki względem siarkowodoru. Obliczenia wykonane zostały w oparciu o krzywe kalibracyjne wyznaczone dla zaprezentowanego wcześniej przez nas amperometrycznego czujnika ditlenku siarki. Analiza krzywych kalibracyjnych pod względem czułości oznaczenia oraz analiza wartości amperometrycznych współczynników selektywności odgrywa dużą pomocniczą...

• PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS

  Journals

  ISSN: 1042-6507 , eISSN: 1563-5325

• Revenue-cycle strategist

  Journals

  ISSN: 1549-0858