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The water industry does not include manufacturers and suppliers of bottled water, which is part of the beverage production and belongs to the food sector. The water industry includes water engineering, operations, water and wastewater plant construction, equipment supply and specialist water treatment chemicals, among others.
Water contaminated by aluminium or zinc cannot be treated in this way using a strong alkali as higher pHs re-dissolve the metal salts. Salt is difficult to remove except by reverse osmosis or distillation. Most portable treatment processes focus on mitigating human pathogens for safety and removing particulates matter, tastes and odours.
Water demand exceeds supply, and household and industrial water supplies are prioritised over other uses, which leads to water stress. [8] Potable water has a price in the market; water often becomes a business for private companies, which earn a profit by putting a higher price on water, which imposes a barrier for lower-income people.
This is a list of water companies in the United States. For more information see water supply and sanitation in the United States . This list is incomplete ; you can help by adding missing items .
Water supply and sanitation require a huge amount of capital investment in infrastructure such as pipe networks, pumping stations and water treatment works. It is estimated that in developing countries investments of at least US$200 billion have to be made per year to replace aging water infrastructure to guarantee supply, reduce leakage rates ...
In April 2007, the water supply of Spencer, Massachusetts in the United States of America, became contaminated with excess sodium hydroxide (lye) when its treatment equipment malfunctioned. [30] Many municipalities have moved from free chlorine to chloramine as a disinfection agent.
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