Water purification is the removal of biological contaminants, undesirable chemicals suspended solids, and gases from water. The goal of this process is to produce water that is fit for consumption. Other than to produce drinking water, water purifiers are also designed for medical, pharmacological, chemical, and industrial applications. The methods for water purification include filtration, sedimentation, distillation, activated carbon, chlorination, and the use of electromagnetic radiation such as ultraviolet light. Membrane filters are also widely used to filter both drinking water and sewage. Purifying water helps reduce the concentration of particulate matters such as suspended solids, bacteria, parasites, algae, and viruses, but also reduces the amount of dissolved material derived from the surface. The drinking water quality standards are typically established by local governments and international standardization authorities. The standards generally include minimum as well as maximum concentration of contaminants, depending on the purpose of water use.
The rapid population growth globally has generated a large amount of water pollution, particularly in urban areas where population growth is greater, and the presence of the number of industries that dump waste water into the rivers is increasing. Also, the unevenness of freshwater availability, especially in the Middle East, forces countries to rely on ocean water, leading to increased demand for desalination processes.
These are the key driving factors that have led to the growth of the water purifier market worldwide. Low maintenance of the water infrastructure has led pipelines to exceed their replacement dates. This also pollutes the supply water, further increasing the demand for separate water purifiers across all major sectors. Industries consume 20% of water globally and are the worst affected during water crisis, so the demand for water recycling is further increasing in industries, which also propels the demand for water purification equipment in this sector. Moreover, increasing consumer awareness about drinking water quality and expanding construction activities in both the commercial and residential sectors have also increased the demand for water purifiers. The global water purifier market generated revenues worth US$ 44.78 Bn in 2014 and is projected to expand at a CAGR of 9.0% during the forecast period (2015 – 2023) to reach US$ 95.57 Bn by 2023.
On the basis of technology, the water purifier market is categorized into gravity purifiers, RO purifiers, and UV purifiers. The RO water purifiers pass water through a membrane, which filters out a large number of water contaminants, depending on pore size. The growing number of water-borne diseases globally has led to an increase in the demand for RO purifiers over traditional gravity purifiers. On the other hand, UV purifiers are also gaining momentum in the water purifier market due to their advanced water filtration technology using UV light to kill water contaminants.
On the basis of end-users, the water purifier market is segmented into industrial, commercial, and household segments. Rapid industrialization has increased the demand for water purifiers in the industrial segment, where purified water is used to carry out various large-scale processes. Furthermore, awareness regarding health issues related to water contamination and various filtration technologies available for their prevention is increasing, leading to a significant pace of growth for the household segment of the water purifier market.
Asia Pacific and Middle East and Africa (MEA) are the major geographies that drive the growth of the global water purifier market. In 2014, key water purifier vendors included Tata Chemicals Ltd., Pentair Residential Filtration, LLC (EVERPURE), GE Corporation (Water). Eureka Forbes, Kent RO Systems Ltd, Aquatech International, Aquasana, Inc., Culligan International Company, Brita GmbH, and Kaz USA, Inc.