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Purified filtering agent for seawater desalination by using natural mineral

A technology of natural minerals and filter agents, applied in seawater treatment, water pollutants, energy wastewater treatment, etc., can solve the problems of high energy, poor desalination effect, poor taste, etc., and achieve high strength, low cost, and simple operation Effect

Inactive Publication Date: 2007-10-10
陶韬
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  • Abstract
  • Description
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Problems solved by technology

The desalination effect after one distillation is not good. The desalinated aqueous solution still contains a small amount of salts such as sodium chloride, potassium chloride, sodium sulfate and sodium carbonate, and the taste is poor. Multiple distillations are required and the consumption is relatively high energy of

Method used

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Embodiment Construction

[0036] Below in conjunction with embodiment, the present invention will be further described:

[0037] 1. The ingredients of natural mineral seawater desalination and purification filter agent are composed of the following components by weight percentage: attapulgite 55%, montmorillonite 15%, zeolite 10%, diatomite 8%, medical stone 7% and seawater Paoyrite 5%.

[0038] 2. The preparation method of natural mineral seawater desalination purification filter agent is:

[0039] (1) Crushing and soaking: according to the ingredients of the natural mineral seawater desalination purification filter agent, it is pulverized into a mixture, the particle fineness is ≤0.5mm, and the pulverized mixture is input into the soaking pool and soaked for 48 hours.

[0040] (2) Extrusion and drying: the soaked mixture is input into the screw extruder, extruded into cylindrical strips, the diameter of the strips is controlled at 3 mm, the length of the strips is controlled at 15 mm, and transported ...

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Abstract

This invention discloses a natural mineral filter agent for desalting seawater, which is composed of attapulgite, smectite, zeolite, diatomite, mainfanite and sepiolite. The natural mineral filter agent is prepared by: pulverizing the above components, soaking, pressing, air-drying, crushing, sieving, torrefying, cooling and packaging. The contents of NaCl, KCl, Ns2SO4 and Na2CO3 in seawater are effectively decreased by ion exchange between Na+ / K+ in seawater and the natural mineral filter agent. Heavy metals such as Hg, Pb and As, chlorides and residual pesticides can be adsorbed by the natural mineral filter agent. The natural mineral filter agent can be used for late-stage purification and filtration of seawater desalting, as well as brackish water desalting in China northwestern regions.

Description

Technical field: [0001] The invention relates to seawater desalination, in particular to a natural mineral seawater desalination purification filter agent. Background technique: [0002] Although the amount of water on the earth is large, 97% is sea water, and fresh water only accounts for 3%, and the distribution is uneven. In some places, fresh water resources are extremely scarce, especially for some islands and inland arid areas that lack drinking water. Important issues of human and animal survival. According to the investigation, the brackish underground water in the coast and inland is the second potential water source in my country. Long-term drinking of this water can lead to osteoporosis, black spots on teeth, and even cancer in severe cases. [0003] With the rapid development of modern science and technology, people pay more and more attention to the development and utilization of seawater, fresh water and underground brackish water. After continuous exploratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/42C02F101/20C02F101/12C02F103/08
CPCY02W10/37
Inventor 陶韬许庆华
Owner 陶韬
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