An integrated water purification device for the removal of groundwater hardness

Abstract

The invention provides an integral water purifying device for removing hardness of underground water. The integral water purifying device comprises a water inlet unit (3), an agent adding unit (4), a main body (1) and a cone-shaped body (2) inverted in the main body (1), wherein the vertex of the cone-shaped body (2) is connected with the water inlet unit (3), and the bottom surface of the cone-shaped body (2) is open; a primary reaction unit (21) and a micro-expansion rough filtering unit (22) are arranged in sequence on the cone-shaped body (2) from bottom to top; a water distribution layer (11), a deep filtering unit (12), a water collecting region (13) and a disinfecting unit (14) are arranged in sequence on the main body (1) from top to bottom; the agent adding unit (4) is arranged on the water inlet unit (3). The device is designed according to the reaction process and characteristics of the conventional agent for removing hardness of underground water, and has the advantages of rapid hardness removing process, easiness in operation, low running cost, good effluent quality and the like. Meanwhile, the device has the advantage of small floor area.

Description

technical field [0001] The invention belongs to the field of drinking water treatment equipment, and in particular relates to an integrated water purification device aimed at removing groundwater hardness. Background technique [0002] Too high or too low water hardness will affect our human health, and it will also bring inconvenience to daily life. For example, when washing with hard water, it will react with soap to produce insoluble precipitates. In addition to affecting the washing effect, it will also make the fibers of the clothes hard, brittle and easily damaged. When washing hair with hard water, it will be astringent. The current "Drinking Water Sanitation Standard" (GB5749-2006) stipulates that the total hardness content in drinking water should be less than 450mg / L (calculated as CaCO3). [0003] At present, a relatively mature hardness removal method in the field of drinking water treatment is to use precipitation to remove calcium and magnesium ions in water, ...

AI Technical Summary

Problems solved by technology

However, the precipitation method has problems such as long precipitation reaction time, incomplete reaction, high residual concentration of calcium and magnesium ions, and also leads to a significant increase in the pH of the product water

In addition, due to the high content of generated sediment, the filter unit is frequently backwashed, which significantly increases the water consumption of private water and production costs

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