scholarly journals Evolution of the Total Sulphur Content in Full-Scale Wastewater Sludge Treatment

2009 ◽  
Vol 26 (4) ◽  
pp. 867-872 ◽  
Author(s):  
Raf Dewil ◽  
Jan Baeyens ◽  
Joris Roels ◽  
Boudewijn Van De Steene
Keyword(s):  
Full Scale ◽  
Wastewater Sludge ◽  
Sulphur Content ◽  
Sludge Treatment ◽  
Total Sulphur ◽  
Total Sulphur Content

scholarly journals Modification of Pyrolytic Oil from Waste Tyres as a Promising Method for Light Fuel Production

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 880 ◽  
Author(s):  
Cezary Dębek
Keyword(s):  
Specific Weight ◽  
Flash Point ◽  
Sulphur Content ◽  
Fuel Production ◽  
Total Sulphur ◽  
Total Sulphur Content ◽  
Heating Fuel ◽  
Waste Tyres ◽  
Heating Oil ◽  
Pyrolytic Oil

Due to its high total sulphur content and other unfavourable properties, pyrolytic oil obtained as a result of tyres pyrolysis is not suitable for use as motor or heating fuel. Therefore, pyrolytic oil was hydrorefined. Hydrorefined oil was used as a component of light heating oil. A composition was prepared from 30 wt % hydrorefinate with 70 wt % Ekoterm Plus (a commercial oil). Unfortunately, the flash point temperature of the hydrorefinate was too low, and did not allow fuel compliant with the Polish standard PN-C-96024:2011 for L1 light heating oil to be obtained. Therefore, the fraction with boiling point below 180 °C was removed from the hydrorefinate. The residue, with a flash point of 74 °C and a sulphur content of 0.143 wt %, was mixed with Ekoterm Plus and fuels with a hydrorefinate fraction content of 30 and 50 wt % were prepared. The composition containing 30 wt % met the requirements for L1 oil in the whole range of tested parameters. Total sulphur content was 0.092 wt %, specific weight was 856 kg/m3 and closed cup flash point was 64 °C. However, the composition containing 50 wt % hydrorefinate did not meet the requirements regarding sulphur content and specific weight. Sulphur content, specific gravity, and flash point are the parameters limiting the possibility of using hydrorefined pyrolytic oil for composing light heating oils compliant with the mentioned standard.

scholarly journals Sulphur Metabolism and Excretion Studies in Ruminants XII. Nitrogen and Sulphur Composition of Ruminal Bacteria

1973 ◽  
Vol 26 (6) ◽  
pp. 1429 ◽  
Author(s):  
PR Bird
Keyword(s):  
Nitrogen Content ◽  
Total Nitrogen ◽  
Dry Matter ◽  
Sulphur Content ◽  
Total Nitrogen Content ◽  
Sulphur Metabolism ◽  
Organic Form ◽  
Ruminal Bacteria ◽  
Total Sulphur ◽  
Total Sulphur Content

The total sulphur content of mixed ruminal bacteria from sheep fed two different diets was 0'41 and 0'45% of the dry matter, and 97% of this sulphur was in the organic form. The total nitrogen content was 8� 9 and 9� 0 % of the dry matter.

Instrumentation, control and automation for full-scale manure-based biogas systems

2006 ◽  
Vol 54 (9) ◽  
pp. 1-8 ◽  
Author(s):  
J. Wiese ◽  
M. Haeck
Keyword(s):  
Wastewater Treatment ◽  
Renewable Energy ◽  
Technical Progress ◽  
Economies Of Scale ◽  
Wastewater Treatment Plants ◽  
Full Scale ◽  
Wastewater Sludge ◽  
Sludge Treatment ◽  
Biogas Plants

In recent years manure-based biogas plants (MBBP) have won more and more importance, because of the numerous ecological advantages. The processes are similar to processes, which have been well known for many decades in anaerobic wastewater/sludge treatment. As a result of technical progress and permanently rising prices for non-renewable energy, MBBPs have become more and more economically reasonable. Because of the economies of scale law more and more larger MBBPs are being built (250–2000 kWel). With regard to investment costs, reactor volumes and complexity etc., these (centralized) plants are comparable with small wastewater treatment plants (WWTP). Consequently, as actually in the case of the small WWTPs a rising use of instrumentation, control and automation (ICA) for larger MBBPs can be observed.

The Effects of Elemental Sulphur on Shoot Dry Weight, Nodulation and Pod Yield of Groundnut (Arachis hypogaea) under Irrigation

1987 ◽  
Vol 23 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Tageldin M. Hago ◽  
M. A. Salama
Keyword(s):  
Arachis Hypogaea ◽  
Field Experiments ◽  
Dry Weight ◽  
Elemental Sulphur ◽  
Sulphur Content ◽  
Nodule Number ◽  
Pod Yield ◽  
Total Sulphur ◽  
Shoot Dry Weight ◽  
Total Sulphur Content

SUMMARYField experiments were carried out to study the effects of elemental sulphur on irrigated groundnut. The sulphur was applied at rates of 50, 100 or 150 kg ha−1, either at sowing, at flowering or in two equal splits at sowing and flowering. Shoot dry weight, total sulphur content of leaves, nodule number per plant and pod yield were all significantly increased by sulphur treatment, but nodule dry weight was unaffected. The greatest response lay at or below 50 kg ha−1 applied at sowing. There were no further increases in response above this level.

scholarly journals Total sulphur content in deposits of the Zofiówka monocline (sw part of upper silesian coal basin)

2013 ◽  
Vol 29 (3) ◽  
pp. 61-77
Author(s):  
Marek Marcisz
Keyword(s):  
Sulphur Content ◽  
Coal Basin ◽  
Total Sulphur ◽  
Total Sulphur Content ◽  
Upper Silesian Coal Basin

Streszczenie Dokonano charakterystyki zmian zawartości siarki całkowitej w 29 pokładach węgla kamiennego złóż Pniówek i Zofiówka, występujących w monoklinie Zofiówki - obszarze o podstawowym znaczeniu dla pol- skiej bazy węgli koksowych. Wytypowane do badań pokłady reprezentują warstwy siodłowe, rudzkie, załęskie i orzeskie, tj. pokłady gnip 500,400 i 300 (namur B - westfal B). Charakterystyki zmian S,d dokonano na podstawie utworzonej cyfrowej bazy danych obejmującej 2730 próbek, spośród których w 2661 oznaczono zawartość tego pierwiastka. Przeprowadzono podstawowe analizy statystyczne, za pomocąktórych określono m.in. liczbę próbek, w których oznaczono zawartość siarki całkowitej w poszczególnych pokładach, a także min., maks. oraz średnią zawartość tego pierwiastka w danym pokładzie. Prześledzono zmiany zawartości siarki całkowitej w układzie wertykalnym (wraz z głębokością) i horyzontalnym (w dwóch kierunkach: E-W oraz N-S). Wykreślono także mapy izoliniowe zawartości siarki całkowitej we wszystkich badanych pokładach węgla. Wyniki badań wykazały, że zawartość siarki całkowitej w badanych pokładach złóż monokliny Zofiówki zmienia się w zakresie od 0,21% S,d w pokładzie 406/1 do 2,18% S,d w pokładzie 361. Zawartość średnia siarki całkowitej w złożach monokliny Zofiówki wynosi 0,65% S,d. Nie wykazano żadnej ogólnej tendencji zmian zawartości siarki cał- kowitej. W każdym z pokładów obserwuje się odmienny charakter tych zmian. Przedstawione w artykule rezultaty stanowią część wyników uzyskanych w ramach projektu badawczego pt.: „Inteligentna koksownia spełniająca wymagania najlepszej dostępnej techniki”, opartego na współpracy nauki z przemysłem, realizowanego w ramach Programu Operacyjnego „Innowacyjna Gospodarka” i finansowanego w większości ze środków Europejskiego Funduszu Rozwoju Regionalnego.

scholarly journals The fungicidal properties of certain spray-fluids. II

1919 ◽  
Vol 9 (3) ◽  
pp. 283-307 ◽  
Author(s):  
J. Vargas Eyre ◽  
E. S. Salmon ◽  
L. K. Wormald
Keyword(s):  
Sulphur Content ◽  
Total Sulphur ◽  
Stage Of Development ◽  
Total Sulphur Content ◽  
Young Leaves ◽  
Conidial Stage

1. The resistance of the hop-mildew (Sphaerotheca Humuli (DC.) Burr.) to polysulphide solutions varies according to its stage of development. The earliest stages after infection and antecedent to the production of conidiophores are the most resistant, requiring approximately a solution of double the concentration lethal for the “powdery” conidial stage. The “powdery” conidial stage occurring on young leaves is more resistant than the same stage on older leaves.2. Conclusive proof has been obtained that with polysulphide solutions neither the total sulphur content nor the sulphide sulphur content gives an index of their fungicidal value.3. The percentage of polysulphide sulphur in polysulphide solutions appears to be the factor determining their fungicidal value.4. The fungicidal value of such solutions does not depend upon the nature of the polysulphides present.

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