Sulfur molecules can be found ...
Published by Prem Baboo, Researcher at www.researchGate.net
- Sulfur molecules can be found in most groundwater. Whether it occurs as sulfate, bisulfide, or hydrogen sulfide depends on the amount of oxygen in the water and, to a lesser extent, upon its degree of acidity Sulphur occurs naturally in soils, rocks and minerals. In the aquifer, groundwater comes in contact with these solid materials dissolving them, releasing their constituents, including sulphur (S), to the water. In groundwater, under typical pH conditions, sulfur can occur as three separate ions: sulfate ([SO4] 2-), bisulfide ([HS]1-) and hydrogen sulfide (H2S)From an aesthetic point of view, however, the molecule H2S is probably the most offensive, having the distinct and unpleasant odour of rotten eggs.
- Number of organic compounds have traces of sulphites, including foods we eat. Edible oil etc.
- Oil refineries, petrochemical.
- Anthropogenic Source.
- Sulphur Cycle.
- Industrial waste.
- Sewage waste.
- Sulfur is present in human and livestock excreta and sulfates are found in most water supplies. Sufficient sulfur is normally available in domestic wastewater in the form of organic sulfides such as mercaptans, and disulfides for the production of odorous gases by anaerobic and facultative bacteria.
- The sulfate ion (SO42-) is one of the most universal anions occurring in rainfall, especially in air masses that have encountered metropolitan areas. Sulfate concentrations in wastewater can vary from only a few milligrams per liter (mg/L) to hundreds of milligrams per liter. Generally, for domestic wastewater, the main source of sulfide is sulfate.
- Sulphur mostly present in coal, heavy oil, natural gas, gaseous fuel that is the source of most of the industries waste.
- Hydrogen sulfide is the most commonly known and prevalent odorous gas associated with domestic wastewater collection and treatment systems. It has a characteristic rotten egg odour, is extremely toxic, and is corrosive to metals such as iron, zinc, copper, lead and cadmium. Hydrogen sulfide is also a precursor to sulfuric acid formation, which corrodes lead-based paint, concrete, metals and other materials.
- The conditions leading to H2S formation generally favour production of other malodorous organic compounds. Thus, solving H2S odour problems can often solve other odour problems as well. Many of the odours detected in wastewater collection and
2 Comments
Toute matière organique sur terre est de l’ordre du Vivant. Quand le souffle de Vie du Vivant cesse, Mère Nature enclenche systématiquement son processus d’élimination. Le sulfure d’hydrogène est l’élément déterminant du processus de destruction de la matière organique: la putréfaction. Les eaux usées composées de matières organiques diverses contiennent de l’eau H2O. Tant qu’il y a de l’eau il y a 2 molécules d’oxygène et même si son taux de présence diminue, nous sommes en milieu Aérobie. Tant qu’il y a de l’eau il ne peut pas y avoir la présence d’un milieu sans oxygène, l’anaérobie. Pour qu’un tel milieu puisse se créer et se maintenir il faudrait des milliards d’années surtout dans un environnement en perpétuellement mouvement. Le transit et le brassage des eaux usées ne favorisent aucunement la création d’un tel état en si peu de temps. A cela il faut ajouter qu’un être Vivant comme la bactérie, qui a besoin d’oxygène pour survivre, va mourrir en si peu de temps avant d’avoir pu changer d’état. L’anaérobie est une simple vue de l’esprit d’un milieu en putréfaction. Le passage de l’état de Vivant à la mort, un état obligatoire et irréversible de destruction/transformation.
English
Any organic matter on earth is of the order of the living. When the breath of life of the living ceases, mother Nature systematically initiates her process of elimination. Hydrogen sulphide is the determining factor in the process of destroying organic matter: rot.
Sewage composed of various organic matter contains H2O water. As long as there is water there are 2 molecules of oxygen and even if its presence rate decreases, we are in an aerobic environment. As long as there is water there can be no presence of a medium without oxygen, the anaerobic.
For such a medium to be created and maintained it would take billions of years especially in an environment in perpetual movement. The transit and mixing of sewage does not encourage the creation of such a state in such a short time. To this it must be added that a living being like the bacterium, which needs oxygen to survive, will die in such a short time before it can change state.
Anaerobic is a simple view of the spirit of a rotting medium. The transition from the state of living to death, a mandatory and irreversible state of destruction/transformation.
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Published by Rayan Ahmed