Globally, a steady rise in the demand of fresh water and the ongoing depletion of usable natural resources, due to rapid urbanisation and economic development, are placing a growing pressure on existing reserves Water is a precious and increasingly scarce commodity To tackle the scarcity challenge, the world needs more sustainable, effective water and waste water management practices and technologies

Paper and pulp industry is very important industry in many countries all over the world, especially as one of the 10 pillar industries in some developed countries While paper industry is one of the light industries with large output, big demand on water and serious pollution as well

Ozone has been currently studied for various applications, such as water treatment, domestic and industrial effluent treatment, medicine, dentistry, veterinary medicine, agriculture, disinfection of environments, and food preservation

In the low oxygen environment at high altitudes such as mountains, plateau, highlands, oxygen deficit is the main reason why human body and brain are less capable of working over those areas And the higher altitude the area is in, the greater damage to human physiology

Extraction rate & production rate of final goods are key performance indexes in mining industry, especially for gold mining Traditionally compressed air is applied to increase the extraction rate of the mineral products, in this way the effectiveness of oxidation is quite limited since there is only 21% of oxygen in the air While such mines are all in remote areas with limited transportation conditions for bulk materials, the onsite oxygen supply by PSA technology is adopted by more and more m

Oxygen is essential to support life in medical services Medical oxygen is not only a MUST but also the most important facility in all kinds of medical services - hospital, clinic, mobile hospital clinic, combat hospital, home care

Oxygen was first used in high-altitude climbing, by the British Everest Mountaineering Team in 1922, which was the second time that humans climb Mount Everest At that time, an oxygen device was applied as climbing oxygen supply and was verified the role of oxygen at ultra-high altitudes

Oxygen is colorless and tasteless, with volume percentage of 21% in the air It is an oxidant, a combustion aid, and a basic element of life support Oxygen reacts with all elements other than inert gases to form oxides and mixtures, making our world look different Oxygen itself does not have combustion performance, but oxygen can effectively support combustion, which is a precious treasure given by nature

Oxygen fountain As people s desire for fresh oxygen is growing, in big cities such as Los Angeles, an oxygen fountain has been set up In the oxygen fountain bar, people hold a transparent oxygen tank which is equipped with a delicate external absorption device With a slight suction, the pure oxygen in the tank is spewed out

Fermentation refers to the process by which microbial cells themselves, or direct metabolites or secondary metabolites, are produced on their own by the life activities of microorganisms under aerobic or anaerobic conditions The so-called fermentation is a certain decomposition process of an organism to an organism

Oxy-fuel combustion is the process of burning a fuel using pure oxygen instead of air as the primary oxidant If the nitrogen component of air is not heated, the consumption of fuel would be reduced, which makes higher flame temperature possible

In the processes of chemical production, oxygen enrichment can be used to replace ordinary air as oxygen source, in order to improve the output and quality of products Dozens of chemical products, such as carbon black, formaldehyde and so on, can be produced with oxygen enrichment