Temat: hydrogen sulphide - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Microscopic Evaluation of Concrete Samples from Manholes Exposed on Hydrogen Sulphide
Autorzy:: Bogusławski, Bartosz
Bering, Sławomira
Mazur, Jacek
Tarnowski, Krzysztof
Rucińska, Teresa
Głowacka, Anna
Tematy:: hydrogen sulphide corrosion
biocorrosion
pressure sewage system
hydrogen sulphide; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/123945.pdf Link otwiera się w nowym oknie
Opis:: The field test of the sewer system in a rural area was made. The results from two different pressure-gravity systems localized in two settlements were compared. The investigated sewer system operates in serial connection; the sewage from one settlement is pumped to the expansion well in the next one. In both systems, the high concentration of hydrogen sulfide, exceeding 200 ppm, and visible concrete wells corrosion effects were recorded. The samples of corroded concrete from the internal walls of the chosen wells were collected. The results of an electron microscope with the EDS attachment (Energy dispersive X-ray Spectroscopy) analysis showed a significant sulfur content in a concrete surface layer from 11.2% to 64.2% for the first system and from 7.53% to 42.9% for the second one. The exposure of concrete to high concentrations of hydrogen sulfide and relatively high content of sulfur on the surface of concrete might be a reason for hydrogen sulfide corrosion of concrete in the investigated systems.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Novel Supported Ionic Liquid Adsorbents for Hydrogen Sulphide Removal from Biogas
Autorzy:: Saffiee, Norsyahira
Salleh, Muhammad Zulhaziman Mat
Isahak, Wan Nor Roslam Wan
Suja, Fatihah
Ding, Gong Tao
Sittijunda, Sureewan
Abdul, Peer Mohamed
Tematy:: biogas
hydrogen sulphide
ionic liquids
gas adsorption; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59114450.pdf Link otwiera się w nowym oknie
Opis:: The imidazolium-based supported ionic liquids (IL) in activated carbon (AC) is an exciting strategy for developing new adsorbents for H2S removal from biogas. In this work, the influence of IL on AC was discovered by examining the effect of ultrasonic stirring as an impregnation method, AC particle size and IL anion type. AC300μm-[Bmim] Cl-U5 demonstrated the highest H2S adsorption capacity of 8.25±0.38 mg H2S/g and was obtained through [Bmim] Cl impregnated on 300 μm AC size through the ultrasonic stirring for five minutes at room temperature. The adsorption/desorption study confirmed the regeneration ability of AC300μm-[Bmim]Cl-U5 up to three cycles with a maximum adsorption capacity of 14.24±0.43 mg H2S/g. The SEM images confirmed the presence of IL on the AC surface and were further explained through BET analysis. TGA measurement indicated the thermal stability of pristine IL, the fresh and exhausted adsorbent. Therefore, this study proved the potential of ultrasonic-assisted supported IL as a promising adsorbent for H2S removal from biogas that exhibits excellent properties in high adsorption capacity and thermal stability.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: ALOHA – modern tool for modeling the risks associated with the spread of volatile pollutants in extraction of hydrocarbons
Autorzy:: Kulynych, V.
Maruta, M.
Tematy:: ALOHA
environmental monitoring
threat of hydrogen sulphide
methane; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Powiązania:: https://bibliotekanauki.pl/articles/299038.pdf Link otwiera się w nowym oknie
Opis:: During the drilling works or exploitation of hydrocarbons working devices such as high-performance engines of drilling equipment and machines are often the main sources of gaseous and particulate pollutants emitted into the atmosphere. At the time of an emergency, eg. gas leakage or eruption in a short time in the atmosphere can get high concentrations of gases such as methane and hydrogen sulphide. The Ordinance of the Minister of the environment dated 29 January 2013 determines the basic criterion for risk of H2S assessment in mining companies extracting oil or natural gas, where is possibility – during the eruption of open holes or wells-flow on the surface of the liquid containing hydrogen sulphide, posing a hazard to workers, the mining plant traffic and people staying close to driving traffic mining plant. The paper presents the modelling of the spread gases in the atmosphere during the “normal” operation on drilling rigs and the gas leakage from the damaged pipeline. Was also made an attempt to mark safe points of the evacuation out in the moment of the emergency incident.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Hydrogen sulfide is involved in the chilling stress response in Vitis vinifera L.
Autorzy:: Fu, P.
Wang, W.
Hou, L.
Liu, X.
Tematy:: hydrogen sulphide
chilling stress
stress response
Vitis vinifera; Pokaż więcej
Wydawca:: Polskie Towarzystwo Botaniczne
Powiązania:: https://bibliotekanauki.pl/articles/56519.pdf Link otwiera się w nowym oknie
Opis:: Hydrogen sulfide (H2S) is an important signaling molecule involved in several stress-resistance processes in plants, such as drought and heavy metal stresses. However, little is known about the roles of H2S in responses to chilling stress. In this paper, we demonstrated that chilling stress enhance the H2S levels, the H2S synthetase (L-/D-cysteine desulfhydrase, L/DCD) activities, and the expression of L/DCD gene in Vitis vinifera L. ‘F-242’. Furthermore, the seedlings were treated with sodium hydrosulfide (NaHS, a H2S donor) and hypotaurine (HT, a H2S scavenger) at 4°C to examine the effects of exogenous H2S on grape. The results revealed that the high activity of superoxide dismutase and enhanced expression of VvICE1 and VvCBF3 genes, but low level of superoxide anion radical, malondialdehyde content and cell membrane permeability were detected after addition of NaHS. In contrast, HT treatment displayed contrary effect under the chilling temperature. Taken together, these data suggested that H2S might be directly involved in the cold signal transduction pathway of grape.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Indonesias Natural Zeolite as an Adsorbent for Toxic Gases in Shrimp Ponds
Autorzy:: Anggoro, Didi Dwi
Sumantri, Indro
Buchori, Luqman
Tematy:: shrimp pond water
adsorption
zeolite
ammonia
hydrogen sulphide; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/1838361.pdf Link otwiera się w nowym oknie
Opis:: The objective of this research was to produce safe water for shrimp by using zeolite as adsorbent to absorb unwanted substances (NH3 and H2S). In particular, this study also aimed to design the shrimp pond water treatment equipment, effect of flow rate on zeolite ability to absorb toxic gases (NH3 and H2S), and rate of absorption (K) and reaction (k). The adsorbent is zeolite which has adsorption properties, high surface area and pores suitable for water (3Å). Then, the concentration of ammonia, hydrogen sulfide was analyzed using Ammonia Test Kit and Hydrogen Sulphide of Hach Hydrogen Sulfide Test Kit. The materials used in this study were zeolite of Malang (East Java, Indonesia) and shrimp pond water. The best result of NH3 and H2S adsorption obtained at a flow rate of 3 L•min-1. The best adsorption constant value (K) achieved by a flow rate of 3 L•min-1. On the basis of the best value of R2, NH3 and H2S adsorption, it can be classified in the first-order kinetic model with R2 of 0.9763 and a k value of 0.0007 hours-1 with a flow rate of 6 L•min-1. From the data above, it can be calculated that the adsorbent needed in the adsorption of NH3 and H2S in a scale shrimp pond requires 18 kg of Malang zeolite with a column height of 3.62 m of adsorbent, a diameter of 2.07 m, and a column volume of 12.21 m3.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: K voprosu dolgovechnosti setejj vodootvedenija
The issue life networks water disposal
Autorzy:: Sopov, V.
Klevcova, L.
Bajak, A.
Tematy:: corrosion process
collector
waste water
hydrogen sulphide
destruction; Pokaż więcej
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:: https://bibliotekanauki.pl/articles/77278.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Indonesias Natural Zeolite as an Adsorbent for Toxic Gases in Shrimp Ponds
Autorzy:: Anggoro, Didi Dwi
Sumantri, Indro
Buchori, Luqman
Tematy:: shrimp pond water
adsorption
zeolite
ammonia
hydrogen sulphide; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/1838278.pdf Link otwiera się w nowym oknie
Opis:: The objective of this research was to produce safe water for shrimp by using zeolite as adsorbent to absorb unwanted substances (NH3 and H2S). In particular, this study also aimed to design the shrimp pond water treatment equipment, effect of flow rate on zeolite ability to absorb toxic gases (NH3 and H2S), and rate of absorption (K) and reaction (k). The adsorbent is zeolite which has adsorption properties, high surface area and pores suitable for water (3Å). Then, the concentration of ammonia, hydrogen sulfide was analyzed using Ammonia Test Kit and Hydrogen Sulphide of Hach Hydrogen Sulfide Test Kit. The materials used in this study were zeolite of Malang (East Java, Indonesia) and shrimp pond water. The best result of NH3 and H2S adsorption obtained at a flow rate of 3 L•min-1. The best adsorption constant value (K) achieved by a flow rate of 3 L•min-1. On the basis of the best value of R2, NH3 and H2S adsorption, it can be classified in the first-order kinetic model with R2 of 0.9763 and a k value of 0.0007 hours-1 with a flow rate of 6 L•min-1. From the data above, it can be calculated that the adsorbent needed in the adsorption of NH3 and H2S in a scale shrimp pond requires 18 kg of Malang zeolite with a column height of 3.62 m of adsorbent, a diameter of 2.07 m, and a column volume of 12.21 m3.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Comparison of Biogas Desulphurisation Process Using Bog Iron Ore and SulfurE – A Case Study
Autorzy:: Wierzbinska, Monika
Juraszek, Dawid
Tematy:: hydrogen sulphide
bog iron ore
Sulfure
desulphurisation
biogas; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59316039.pdf Link otwiera się w nowym oknie
Opis:: Biogas desulphurisation plants aim to remove hydrogen sulphide and other gaseous compounds that occur in the gas mixture. This mainly concerns the reduction of H 2S which reacts with most metals such as iron or copper, which leads to the corrosion of pipelines and equipment. The aim of this research was to use two materials to adsorb hydrogen sulphide from biogas and to compare the efficiency of these two processes. Biogas was passed through both adsorbents. The concentration of hydrogen sulphide was measured upstream and downstream of the adsorbent bed. The results are summarised in diagrams. The first material used in the biogas desulphurisation plant at the wastewater treatment plant was bog iron ore. The bed was replaced several times during the year to maintain the efficiency of hydrogen sulphide removal from the biogas. After a year, a new adsorbent called “SulfurE” was used in place of the bog iron ore. The new bed operated with higher efficiency than the bog iron ore. The operating period between bed replacements was also extended. The bog iron ore bed in the desulphurisation plant was replaced on average 3 to 4 times a year, depending on the amount of hydrogen sulphide flowing into the desulphurisation plant (the more H 2S, the higher the frequency of bed replacement). The bed in the desulphurisation plant filled with the “SulfurE” product operated for about 9 months with 90% hydrogen sulphide absorption efficiency (depending on the quality of biogas produced).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Reduction of chosen gaseous pollutants from rabbit excrement in ex situ conditions, using natural manure additives
Autorzy:: Karpińska, Katarzyna
Nowakowicz-Dębek, Bożena
Wrzesińska-Jędrusiak, Edyta
Jaguszewski, Sebastian
Targońska-Karasek, Małgorzata
Wlazło, Łukasz
Tematy:: ammonia
gaseous pollutants
hydrogen sulphide
methane
natural sorbents
rabbit manure; Pokaż więcej
Wydawca:: Instytut Technologiczno-Przyrodniczy
Powiązania:: https://bibliotekanauki.pl/articles/58906970.pdf Link otwiera się w nowym oknie
Opis:: Animal production is a major source of environmental pollutants, so it is becoming crucial to search for new methods to reduce their release while maintaining animal welfare. The aim of the study was to apply natural additives to rabbit manure in ex situ conditions to reduce the volume of released gaseous pollutants like ammonia (NH3), methane (CH4) and hydrogen sulphide (H2S). The study was carried out in two stages, each with a control group and five experimental groups with additives, natural sorbents (zeolite, bentonite biochar, perlite, mixtures in various proportions of zeolite, biochar and bentonite as well as perlite and biochar) or dried plants containing saponins (Tribulus terrestris and Lysimachia nummularia). Pollutants from each group were measured continuously for one month. In stage 1, both in the case of NH3 and CH4, statistically significant differences were observed between the tested groups. The use of sorbent mix and Tribulus terrestris was shown to reduce the release of both NH3 (by 80% and 83%, respectively) and CH4 (by 17% and 25%, respectively). The greatest reduction of NH3 in stage 2 was achieved when perlite with the addition of biochar was used (56%), and CH4 was achieved when Bacillus azotofixans sp. nov. bacteria were used (38%).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Zastosowanie georadaru do identyfikacji potencjalnych źródeł zagrożeń gazowych oraz rozpoznania budowy geologicznej pokładu najstarszej soli kamiennej (Na1) w O/ZG Polkowice-Sieroszowice
Using a georadar to identify potential sources of gas risks and to recognize the geological structure of the Zechstein Oldest Halite rock salt deposit (Na1) at the Polkowice-Sieroszowice mine
Autorzy:: Chrul, T.
Pawlik, W.
Wrzosek, J.
Tematy:: georadar
złoże soli
bloki anhydrytowe
siarkowodór
salt deposit
anhydrite blocks
hydrogen sulphide; Pokaż więcej
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/2061839.pdf Link otwiera się w nowym oknie
Opis:: W KGHM Polska Miedź S.A. w O/ZG Polkowice-Sieroszowice jest wykorzystywana metoda georadarowa do rozpoznawania budowy geologicznej pokładu najstarszej soli kamiennej (Na1). Impulsem do zastosowania georadaru było pojawienie się zagrożenia gazowego w wykonywanych wyrobiskach górniczych. Metoda ta doskonale sprawdza się do lokalizowania bloków anhydrytowych, będących potencjalnym miejscem akumulacji siarkowodoru oraz jest pomocna przy określaniu stropu i spągu pokładu soli. W badaniach zastosowano anteny o częstotliwościach 100 MHz i 30 MHz, którymi osiągnięto zasięgi odpowiednio 40 m i 60 m przy rozdzielczości 0,25 m i 1,0 m. Profilowania z użyciem georadaru wykonywano w otworach badawczych i wzdłuż spągu wyrobisk.
The Polkowice-Sieroszowice Mine the KGHM Polska Miedź S.A. uses the georadar method to recognize the geological structure of the Zechstein (Upper Permian) Oldest Halite rock salt deposits (Na1). The incentive to use the georadar was the occurrence of a gas risk in mining excavations. This method is ideal for locating anhydrite blocks, that are potential sites of hydrogen sulphide accumulation, and is helpful in determining the top and base of the salt deposits. In the tests, 100 MHz and 30 MHz antennas were used, which reached the ranges of 40 m and 60 m and resolutions of 0.25 m and 1.0 m, respectively. The profiling with use of a georadar was performed in research boreholes and along the floors of excavation drifts.
Dostawca treści:: Biblioteka Nauki

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