Water treatment technology for regenerating filter material by carbon dioxide

A carbon dioxide and water treatment technology, applied in water/sludge/sewage treatment, ion exchange water/sewage treatment, ion exchange regeneration, etc., can solve the problem of high concentration salt and strong acid and alkali consumption, TDS content reduction, exchange resin The secondary pollution of the regeneration fluid and other issues can be achieved to reduce the discharge of dangerous wastewater, increase the regeneration cycle, and reduce the energy consumption of reverse osmosis.

Inactive Publication Date: 2018-12-04
芜湖沃泰环保科技有限公司
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  • Application Information

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Problems solved by technology

[0003] The invention provides a water treatment method using carbon dioxide to solve the secondary pollution of the exchange resin regeneration solution caused by the existing ion exchange technology, and the large consumption of high-concentration salt and strong acid and alkali. A greenhouse gas, the anion and cation exchan

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  • Water treatment technology for regenerating filter material by carbon dioxide
  • Water treatment technology for regenerating filter material by carbon dioxide
  • Water treatment technology for regenerating filter material by carbon dioxide

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Embodiment

[0065] Due to geological reasons, groundwater has serious fluorine pollution. The fluorine concentration is 5.4ppm. The fluorine concentration of drinking water recommended by WHO is 1.5ppm. The groundwater is extremely hard and has a salt content higher than 2000ppm, so it is not suitable for drinking. Fluoride ions are completely removed after the groundwater flows through the first fixed-bed container 1 through the technology of the present invention, calcium ions are completely removed after flowing through the second fixed-bed container 2, and the salt content of the final effluent is reduced to 1000ppm, free of harmful fluorine ions, and demineralized water. After the filter material is regenerated by carbon dioxide, high-concentration salt solution wastewater is not discharged to the environment, and there is no need to store or discharge dangerous liquids such as strong acids and alkalis on site.

[0066] Thermal power plants need high-quality pure water to enter the b...

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Abstract

The invention discloses a water treatment technology for regenerating a filter material by carbon dioxide. The technology comprises the operation steps: pretreating raw materials, filling a treatmentcontainer, treating influent water, regenerating a material and reusing the material. 50% of the TDS content in earth surface water, groundwater or tap water can be reduced, and calcium and magnesiumions in water are removed, the water is softened, chloride ions and sulfate ions are adsorbed, and fluorine and other harmful ions in the water are selectively adsorbed; when the material is regenerated, two kinds of resins are regenerated by carbon dioxide at one time without production of high-concentration salt waste liquor or strong acid and alkali waste liquor. Compared with the prior art, the consumption of chemical drugs is greatly reduced, the cost is reduced, and the high-concentration or dangerous strong acid and alkali waste liquor is not produced and the discharge of wastewater isreduced.

Description

technical field [0001] The invention belongs to the technical field of water treatment ion exchange, in particular, the invention relates to a water treatment technology using carbon dioxide to regenerate resin. Background technique [0002] Ion exchange technology is currently widely used in the field of water purification. Ion exchange, as a technology for effectively treating anions and cations in water, is currently widely used in water purification treatment such as removal of harmful ions exceeding the standard in water, desalination of salt water, softening of hard water, manufacturing of household water dispensers and other fields. Its simple operation, low cost of required equipment and materials, and low operation and maintenance requirements make it play an important role in various fields. However, usually ion exchange water purification or hard water softening technology cannot achieve desalination effect, and high-concentration salt is required for resin regen...

Claims

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Application Information

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IPC IPC(8): C02F1/42B01J49/53B01J49/57B01J47/028B01J49/75C02F101/14C02F101/10
CPCB01J47/028B01J49/53B01J49/57B01J49/75C02F1/42C02F2101/10C02F2101/14
Inventor 董航奥雅那·森古普塔
Owner 芜湖沃泰环保科技有限公司
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