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Novel combined hardness remover

A combined and hard technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. High-level problems, to achieve good removal effect, ensure the overall effluent quality, and ensure the effect of water passing capacity

Active Publication Date: 2015-04-01
江苏河清海晏环境有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the relatively mature hardness removal method in the field of drinking water treatment is to use the precipitation method to remove calcium and magnesium ions in the water. However, the commonly used pharmaceuticals such as calcium hydroxide, sodium hydroxide, and sodium carbonate require a long precipitation reaction time and slow reaction. Thorough, high residual concentration of calcium and magnesium ions, etc., will also lead to a significant increase in the pH of the product water

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Embodiment Construction

[0023] The new combined hardness removing device of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] New combined hardness removal device, see figure 1 , including a water inlet unit 1, a sediment generation reaction unit 2, a filtration separation unit 3, a water quality improvement unit 4 and a clear water tank 5 connected in sequence;

[0025] The water inlet unit 1 is provided with a hardness removing agent and a coagulant dosing port.

[0026] The sediment generation reaction unit 2 is a cuboid or a cube, and its aspect ratio is between 1:1:1-3:1:2; the magnetic hydroxyapatite defluorination unit 2 is filled with calcium carbonate and coagulant The flocs formed have a concentration of 1-20g / L. The bottom plate 21 of the sediment generation reaction unit 2 is set obliquely, with an inclination angle of 20-60°; the water inlet unit 1 is connected to the upper edge of the bottom plate 21, and the water inlet dire...

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Abstract

The invention provides a novel combined hardness remover which comprises a water inlet unit (1), a precipitate generation reaction unit (2), a filtering and separating unit (3), a water quality improvement unit (4) and a clean water tank (5) which are sequentially connected, wherein the water inlet unit (1) is connected with the lower part of the precipitate generation reaction unit (2); the filtering and separating unit (3) comprises an initial separating unit (31), a quartz sand filter layer (32) and a pebble layer (33) which are sequentially connected; the initial separating unit (31) is connected with the precipitate generation reaction unit (2); and the pebble layer (33) is connected with the water quality improvement unit (4). The device has the advantages of compact structure, small occupied area, flexible operation and wide application range, is convenient to use, can well ensure the total hardness removal effect in underground water and the integral effluent water quality, and has favorable popularization and application prospects.

Description

technical field [0001] The invention belongs to the field of water treatment equipment, in particular to a novel combined hardness removing device. 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 CaCO 3 count). [0003] At present, the relatively mature hardness removal method in the field of drinking water treatment is to use the precipitation method to remove calcium and magnesium ions in the water. However, the commonly used pharma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 刘成何思源陈卫崔彪
Owner 江苏河清海晏环境有限公司
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