oxygen generating Articles
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How molecular sieve DESICCANT is used for oxygen generation?
Molecular sieves are basically three dimensional aluminosilicate that contains cavities inside the crystal. Through various channels these cavities are interconnected with each other. These channels are called pores. All the pores have an exact diameter which is uniform. This diameter plays a very crucial role in the application of these zeolites. This means that the molecules which have a ...
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Degradation of surfactant SLS in water by singlet oxygen generated by the reaction between hydrogen peroxide and hypochlorite
The synergistic aqueous combination of hydrogen peroxide and hypochlorite which results in the formation of the highly oxidizing intermediate species singlet oxygen (1O2) was effective in the degradation of the anionic surfactant sodium lauryl sulphate (SLS) in water. The process was effective in the near neutral pH range of 6–8, and up to initial SLS concentration values of 10 mg/L. For ...
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Providing uninterrupted on-site oxygen generation - Case Study
OSI’s oxygen concentrators are low-cost and highly efficient. Our units leverage vacuum swing adsorption (VSA) technology to keep power consumption as low as possible. A 75% turn-down ratio modulation automatically turns down production as the load decreases, reducing overall energy consumption. Each unit is self-contained, compact and easy to move and install. Equipped with remote ...
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Oxygen Generation for the Ozonation of Process and Drinking Water
Purity is in the Air Ozonation can help remove chemical elements such as iron or manganese as well as organic substances and bacteria from the untreated water. The oxygen needed for this is produced using special oxygen generators. Water is possibly the most important asset there is. However, untreated water is usually contaminated with various substances and has to be treated before it can be ...
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Monitoring the purity of nitrogen in cryogenic air separation plants - Case Study
In the manufacturing of the containerised plants, Linde Cryoplants Ltd utilise the Systech Illinois EC923 trace oxygen analyser to monitor the purity of the nitrogen. With 125 years of experience and expertise in the field of cryogenics, Linde Cryoplants is a leading manufacturer of air separation plants. Their compact Nitrogen and Oxygen generators provide custom-made and standard supply ...
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Oxygen or Air-Feed Ozone Generators?
One of the first questions one is often faced with in designing an ozone system is whether the application requires concentrated oxygen or simply clean, dry air. I will explain why oxygen-feed ozone generators are the best choice for all industrial applications. It is very likely that your first online search for “ozone generators” will lead you to a series of air-feed generators. ...
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Effect of solution matrix and pH in Z-nZVI-catalyzed percarbonate system on the generation of reactive oxygen species and degradation of 1,1,1-trichloroethane
This study primarily focuses on evaluating the effects of solution matrix and pH for the generation of reactive oxygen species (ROSs) in a Z-nZVI-catalyzed sodium percarbonate (SPC) system to degrade 1,1,1-trichloroethane (1,1,1-TCA) in the absence and presence of a reducing agent (RA), i.e. hydroxylamine. Degradation of 1,1,1-TCA was 49.5% and 95% in the absence and presence of RA. Probe ...
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Synthetic vegetation: An ecosystem prosthesis
Abstract: In this paper, an entirely novel, theoretical restoration/conservation tool will be described. This tool will take the form of self-sustaining ‘synthetic vegetation’ designed, through the use of solar energy, to generate Oxygen through the electrolysis of water and sequester CO2 in a disposable form through the formation of Carbonic acid amongst other things; in short simulate many of ...
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Sonochemical degradation of ofloxacin in aqueous solutions
The use of low frequency (20 kHz), high energy ultrasound for the degradation of the antibiotic ofloxacin in water was investigated. Experiments were performed with a horn-type ultrasound generator at varying applied power densities (130–640 W/L), drug concentrations (5–20 mg/L), hydrogen peroxide concentrations (0–100 mM) and sparging gases (air, oxygen, nitrogen and argon). In general, ...
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Application of Titanium - A Kind of Metal Full of Wisdom - 1
Titanium and titanium alloy is named as "future metal" for its excellent properties. It's lightweight, strong and high corrosion resistant, and become a great promising material. Titanium and titanium alloy is not just widely used in plane and aerospace industry. Now it's also widely used in chemical processing, petroleum, light industry, metallurgy, power generation and other industries. One of ...
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O2 to Rescue the Savannah Port Expansion Project
The recently completed Panama Canal expansion project has doubled the capacity of the Panama Canal by adding a new lane of traffic and increasing the width and depth of the lanes, allowing larger ships to pass. The new larger ships, called New Panamax, are about one and a half times the previous Panamax ships and can carry over twice as much cargo. The expansion will enable these much larger ...
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Can I Purify Hydrogen from my HHO with a Metal Hydride?
We occasionally get questions from people wanting to know if they can use a Metal Hydride (MH) to purify the Hydrogen from an HHO generator, so I thought I would post our response here: No Why? Putting HHO into a metal hydride container should not be done. Aside from the fact that it would be extremely unsafe to put HHO gas in a chamber with a cataylst (e.g. MH) since it will cause it to ...
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In vitro studies on radiation induced membrane oxidative damage in apoptotic death of mouse thymocytes
Radiation oxidative damage to the plasma membrane of cells and its consequences in the mechanism of apoptotic death have been receiving growing attention of radiation scientists in recent years. We have employed a fluorescence probe method to determine changes in the permeability and fluidity of the plasma membrane of mouse thymocytes following γ irradiation mwithin a low to moderate ...
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Metal-responsive transcription factors that regulate iron, zinc, and copper homeostasis in eukaryotic cells
Iron, copper, and zinc are all essential nutrients. The electron transfer properties of iron and copper are fundamental to processes such as respiration and photosynthesis. Zinc forms the catalytic center in numerous enzymes and has an important structural role in a wide range of proteins. However, all these metals can be toxic if their levels and distribution are not carefully regulated, as ...
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Natural organic matter‐induced alleviation of the phytotoxicity to rice (Oryza sativa L.) caused by CuO nanoparticles
Natural organic matter (NOM) can interact with engineered nanoparticles (NPs) in the environment and modify their behavior and toxicity to organisms. In the present study, the phytotoxicity of copper oxide (CuO) NPs to rice seedlings in the presence of humic acid (HA) as a model NOM was investigated. The results showed that CuO NPs induced the inhibition of root elongation, aberrations in root ...
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Study of environmental risks incurred by leakage of lithium cells to the food chain in a freshwater ecosystem
Water flea (Daphnia magna) and fish (Carassius auratus) at trophic level were used for comprehensive evaluation of environmental risks incurred by manufactured nanomaterial (nNi(OH)2) as leaked from lithium cells to the food chain in freshwater ecosystem. The 48, 72 and 96 h acute toxicities of water suspensions of nNi(OH)2 to the flea and the fish were tested, using the immobilization and the ...
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Environmental implications and applications of carbon nanomaterials in water treatment
Carbon nanomaterials have been proposed as a basis for developing new technologies for photocatalytic oxidation and disinfection, improved membrane processes, adsorbents, and biofilm-resistant surfaces. This study details recent progress towards the development of these proposed applications. We explored the use of carbon nanomaterials such as fullerene C60, single-wall carbon nanotubes (SWCNTs), ...
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General Oxygen Requirements for Wastewater Treatment
TECHNICAL BULLETIN 135 General Oxygen Requirements for Wastewater Treatment Oxygen requirements for municipal wastewater treatment can be predicted closely with the standard laboratory analysis using g the BOD test (special requirements exist for some industrial wastewater). The BOD test is designed to measure Biological Oxygen Demand for the wastewater and provides an excellent basis for ...
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Oxidative stress response of the aquatic macrophyte Hydrilla verticillata exposed to TiO2 nanoparticles
The present study investigated the effects of titanium dioxide nanoparticles (TiO2‐NPs) on the oxidative stress response in Hydrilla verticillata. Macrophytes were exposed to different concentrations of TiO2‐NPs (0 mg/L, 0.01 mg/L, 0.1 mg/L, 1 mg/L, 10 mg/L) for 24 h, based on currently predicted levels of nano‐TiO2 in surface waters. Additionally, TiO2‐NPs with varying crystalline statuses ...
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The involvement of cellular oxidative damage in the apoptotic death induced in γ-irradiated mouse thymocytes
Radiation-induced cellular oxidative damage and the consequent apoptotic death were investigated in mouse thymocytes in the presence or absence of eugenol to understand the mechanism of modification in cellular radiosensitivity. The results showed the radiation-induced generation of intracellular Reactive Oxygen Species (ROS) in γ-irradiated thymocytes, which were detected within a low to ...
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