نتایج جستجو برای: hydrogen sulfide removal water treatment

تعداد نتایج: 2121405  

2003
Chi-Yuan Fan Richard Field William C. Pisano James Barsanti James J. Joyce Harvey Sorenson

This paper presents an overview of causes of sewer deterioration together with a discussion of control methods that can prevent or arrest this deterioration. In particular, the paper covers inlineand combined sewer overflow(CSO) storage-tank-flushing systems for removal of sediments and minimizing hydrogen sulfide production resulting in the reduction of associated pollution and sewerline corro...

2016

Hydrogen Sulfide. Hydrogen sulfide (H2S) is a colorless gas with a characteristic odor of rotten eggs. It naturally occurs in the gases from volcanoes, sulfur springs, undersea vents, swamps, stagnant bodies of water, and in crude petroleum and natural gas. Additionally, bacteria, fungi, and actinomycetes release hydrogen sulfide during the decomposition of sulfur-containing proteins and by the...

M Usman M Waseem N Andiego N Mani

Trace organic compounds (TrOCs), mostly found in secondary effluents, have a potential impact on the environment, affecting surface water, groundwater, and especially aquatic ecosystems. The present study focuses on oxidation of five selected TrOCs in column experiments, by simulating Soil Aquifer Treatment (SAT) integrated with Fenton-like reaction, using Granular Ferric Hydroxide (GFH) as a c...

Journal: Journal of Nanoanalysis 2014
Ali Akbar Miran Beigi Amir Vahid Majid Abdouss Nastaran Hazrati

Silicate mesoporous materials are of the main interesting adsorbents for decreasing of hydrogen sulfide (H2S) from crude oil. In this work zinc impregnated highly ordered MCM-41 was synthesized via post-synthesis functionalization and was used as adsorbent for removal of H2S from crude oil. Also the variation of solvents was mainly adjusted. In  order  to  determine  the  ideal  solvent  for  t...

2015
Ronald W. Martin James R. Mihelcic John C. Crittenden Ronald W. Martin

Biochemical processes by chemoautotrophs such as nitrifiers and sulfide and iron oxidizers are used extensively in wastewater treatment. The research described in this dissertation involved the study of two selected biological processes utilized in wastewater treatment mediated by chemoautotrophic bacteria: nitrification (biological removal of ammonia and nitrogen) and hydrogen sulfide (H2S) re...

احمدی‌زاده, معصومه, رشیدی, ایران, آهنگرپور , اکرم , جلالی , طه , عبداله‌زاده فرد , امین , غریب ناصری, محمدکاظم ,

      Background & Aims: Hydrogen sulfide due to cytoprotective effects can be used in prevention and treatment of many disorders. The effects of hydrogen sulfide onhormonal system in rat kidneys with cisplatin (CP) nephrotoxicity are unknown. The purpose of the experiments was to survey the effects of hydrogen sulfide on rat kidneys hormonal system with cisplatin nephrotoxicity. Ma...

Journal: :Applied and environmental microbiology 1997
B P Lomans A Smolders L M Intven A Pol D Op C Van Der Drift

Concentrations of volatile organic sulfur compounds (VOSC) were measured in water and sediment columns of ditches in a minerotrophic peatland in The Netherlands. VOSC, with methanethiol (4 to 40 nM) as the major compound, appeared to be mainly of sediment origin. Both VOSC and hydrogen sulfide concentrations decreased dramatically towards the water surface. High methanethiol and high dimethyl s...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1965

2017
Min Li Ping Zhang Hai-jun Wei Man-Hong Li Wei Zou Xiang Li Hong-Feng Gu Xiao-Qing Tang

Background Homocysteine, a risk factor for Alzheimer's disease, induces cognitive dysfunction. Reactive aldehydes play an important role in cognitive dysfunction. Aldehyde-dehydrogenase 2 detoxifies reactive aldehydes. Hydrogen sulfide, a novel neuromodulator, has neuroprotective effects and regulates learning and memory. Our previous work confirmed that the disturbance of hydrogen sulfide synt...

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