The Importance of Water Treatment

 Water purification, the process of removing unwanted compounds, organic and inorganic materials, and biological contaminants from water. The process also includes distillation (converting a liquid into a vapor to condense it back into liquid form) and deionization (removing ions by extracting dissolved salts). A primary purpose of water purification is to provide clean drinking water.

 

Water purification also addresses the need for clean and potable water for medical, pharmacological, chemical and industrial applications. Purification procedures reduce the concentration of contaminants such as suspended particles, parasites, bacteria, algae, viruses and fungi. The scale of water purification ranges from large (e.g., entire cities) to small (e.g., individual households).

 

Most communities rely on natural water bodies as a source of water purification and abstraction for daily use. Generally, these sources can be classified as groundwater or surface water and typically include underground aquifers, creeks, streams, rivers and lakes. With recent technological advances, oceans and brackish seas are also being used as alternative sources of water for drinking and domestic use.

Poly Aluminium Chloride

Determining water quality

Historical evidence shows that water treatment was recognized and practiced by ancient civilizations. Basic treatments for water purification are documented in Greek and Sanskrit writings, and as early as 1500 B.C., the Egyptians used alum for precipitation.

 

In modern times, the quality of water that must be purified is usually set by government agencies. Whether local, national or international standards, government standards usually set the maximum concentration of harmful contaminants allowed in safe water. Since it is almost impossible to check water based on appearance alone, a variety of processes such as physical, chemical or biological analysis have been developed to test for contamination levels. Levels of organic and inorganic chemicals such as chlorides, copper, manganese, sulfates and zinc, microbial pathogens, radioactive materials, dissolved and suspended solids, as well as pH, odor, color and taste are some of the common parameters used to assess water quality and contamination levels.

 

The Process

Most of the water used in industrialized countries is treated at water treatment plants. Although the methods used in pretreatment at these plants depend on their size and the severity of contamination, these practices have been standardized to ensure overall compliance with national and international regulations. Most water is purified after being pumped from a natural source or piped to a storage tank. The purification process begins after the water has been transported to a central location.

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Industrial water purification

In addition to drinking and domestic uses, industry consumes large amounts of water. For example, the chemical, petroleum, food processing and textile industries require water for manufacturing, processing, heating, cooling, washing, rinsing and other applications.

 

Such industrial systems require treated water, and the lack of proper purification can lead to problems such as scaling, corrosion, sedimentation, bacterial growth and poor product quality within pipes or processing equipment. In addition to traditional water treatment processes, industrial water purification may involve specialized technologies such as electrodeionization, ion exchange, membrane systems, ozone treatment, evaporation and UV irradiation. The choice of technology depends on the quality of the raw water and the intended industrial use.

 

Poly Aluminium Chloride is mainly used for the purification of domestic drinking water and the treatment of industrial wastewater, special water quality (such as oily wastewater, printing and dyeing papermaking wastewater, wastewater treatment, smelting wastewater, radioactive substances, toxic heavy metals such as Pb, Cr and fluorine-containing wastewater, etc.) Drilling, tanning, metallurgy, papermaking and other industries.