How much Water Consumption in Different Industrial Sectors?
Water covers 71 percent of the planet's surface. However, freshwater for our fundamental survival needs accounts for only 3% of the world’s total water. The majority of this is freshwater, which is found in glaciers, polar ice caps, the atmosphere, and soil. This leaves us with 0.5 percent of the world's water that is fresh and ready to drink.
As a result, two-thirds of the world's population lives in locations where freshwater is scarce. Water scarcity affects every continent, leaving 1.1 billion people without access to clean water.Half of the world's population will be living in water-scarce areas by 2025, according to estimates. This is primarily due to climate change.
While India receives adequate rainfall, it is not evenly distributed across the country. Agriculture is one of India's most important industries, and irrigation is the country's greatest water user. Furthermore, as the population and industrial activity have grown, so has the need of water in a variety of industries. This rise is unsustainable, and it is exacerbated by climate change.
Worldwide freshwater usage — that is, freshwater withdrawals for agriculture, industry, and municipal purposes — has grown approximately six-fold since 1900, owing to a growing global population and an economic shift towards more resource-intensive consumption patterns.
1: Water Consumption by Industrial Sector
For a long time, companies have dumped their waste into bodies of water without treatment. As a result, there has been a negative influence on both the health of living beings and the environment. Even now, several sectors continue to adopt the same method. It is critical to evaluate the societal and environmental consequences, which are growing by the day. Various cutting-edge technologies, such with the Disc Tube (DT) based RO system and the Waste Heat Evaporator, have made it feasible to recover industrial wastewater for reuse.
According to a United Nations estimate, the industrial sector is one of the largest water users, accounting for over 22% of worldwide water consumption.This percentage will climb in the next years, resulting in an increase in wastewater output. As a result, all industrial enterprises must have a reliable wastewater treatment system installed.
2: Water consumption in Agricultural Sector
India is the world's agricultural superpower. Agriculture is by far the most water-intensive industry. The consumption accounts for almost 80% of India's overall water consumption. And more than half of this water is derived from subsurface sources. Because of this high degree of reliance, subsurface water supplies are being depleted.
Another issue is the contamination of groundwater and surface water caused by the use of untreated wastewater in agriculture. This leads to anomalies in agricultural output as well as the farmers' health. Proper treatment, on the other hand, may aid in the effective use of nutrient-rich wastewater for agricultural uses, as well as farmers' livelihoods.
3: Water consumption in the Municipal sector
With the growing population, there are numerous low-income communities where large amounts of wastewater are discharged untreated into drains and natural water resources. Household effluents, human waste, urban-based hospital waste, chemicals, and other substances are included in this wastewater. All of these elements combine to make the effluent very hazardous. There are, however, a few locations where wastewater is collected and treated.
However, the treatment's efficacy is determined by the system in use. With the increasing development of the urban population, this might become a big issue. It is critical to install and upgrade current wastewater treatment systems in order to recycle hazardous wastewater for reuse.
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