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Physical control method for directly adsorbing polluting elements in lakes, rivers and reservoirs by using natural zeolite

A natural zeolite, direct technology, applied in adsorption water/sewage treatment, energy and wastewater treatment, etc., can solve the problems of high maintenance cost, popularization and application, inability to operate, and large floor space.

Inactive Publication Date: 2010-09-15
云南宝尔湖泊治理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take biological treatment as an example: the purification treatment effect of constructed wetland is universally recognized, but it has the disadvantages of large investment, large area, restriction of large water flow, and freezing weather in northern winter and early spring. Factors such as high maintenance costs restrict its popularization and application

Method used

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  • Physical control method for directly adsorbing polluting elements in lakes, rivers and reservoirs by using natural zeolite
  • Physical control method for directly adsorbing polluting elements in lakes, rivers and reservoirs by using natural zeolite
  • Physical control method for directly adsorbing polluting elements in lakes, rivers and reservoirs by using natural zeolite

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Experimental program
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Effect test

Embodiment 1

[0023] The area of ​​the lake is large, and the water capacity of the lake is hundreds of millions of cubic meters. Moreover, the pollution of the lake is usually formed by polluting the water quality at the entrance of the lake in the densely populated area adjacent to the lake, and the cyanobacteria produced densely spread to the center of the lake year by year. Aiming at the characteristics of the lake, the present invention adopts the pollution of enclosing points and the natural zeolite in the polluted zone around the lake with large tonnage to directly adsorb. Dynamic and static combined adsorption. In a certain period of time, the natural zeolite is saturated to a certain extent. After replacing the new natural zeolite, the replaced natural zeolite contains harmful elements such as arsenic, and the rest is air-dried and crushed by the crushing equipment, and then used as a fertilizer containing nitrogen, phosphorus and other elements. Returning to the field for secondar...

Embodiment 2

[0025] The river water becomes dynamic at a certain flow rate. For the treatment of river polluted water bodies, a fixed shed barrier structure is adopted to fully ensure that the river water can increase the flow rate under the premise that the accelerated water flow can significantly improve the adsorption capacity of natural zeolite with the help of momentum.

Embodiment 3

[0027] Non-point source pollution is the main source of pollution in lakes, rivers, and reservoirs. Cutting off upstream pollution sources is an important means of controlling pollution in lakes, rivers, and reservoirs. Use natural zeolite granules and powder to add binders for extrusion molding, and use these molding profiles to transform lakes, rivers, reservoir tributaries, main stream ditches, absorb residual nitrogen, phosphorus, benzene and a small amount of metal elements used in farmland, and cut off non-point source pollution control in watershed areas Upstream pollution sources ensure the safety of downstream water quality, and at the same time reduce the use of nitrogen and phosphorus elements in farmland, which not only protects the environment, but also makes a major contribution to farmland fertilizer maintenance and income increase.

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Abstract

The invention relates to a physical control method for directly adsorbing polluting elements in lakes, rivers and reservoirs by using natural zeolite. Natural zeolite blocks, particles or powder and extrusion-molded substances of the natural zeolite particles and the natural zeolite powder are directly dumped into a polluted water body to directly adsorb nitrogen, phosphorus, benzene, arsenic and other metal elements in the polluted water body. The natural zeolite has a capability of adsorbing the polluting elements, is generally called molecular sieve and does not contain any polluting element. A specific surface area between the surface of the natural zeolite and a polluted water region is maximized to the maximum extent through an apparatus and a device filled with the natural zeolite blocks, particles, powder or extrusion-molded substances of the natural zeolite. The method is simple, convenient and easy to popularize and is an effective method for treating pollution sources of lakes, rivers and reservoirs and upstream pollution sources.

Description

technical field [0001] The invention relates to a physical treatment method for direct adsorption of pollutant elements in lakes, rivers and reservoirs by natural zeolite Background technique [0002] Zeolite is the general term for zeolite non-metallic minerals, including a series of hydrous calcium, sodium, barium and potassium aluminosilicate minerals. Due to different components, it is divided into zeolite Na[AlSi 2 ].H 2 O, calcium zeolite Ca[Al 2 Si 3 o 10 ].H 2 There are as many as 36 varieties of minerals such as O, the water content of which is related to the external temperature and the pressure of water vapor. When heated or exposed to sunlight and dried by dry air, the water can slowly escape, but no matter at any Under the action of nature, it does not destroy its crystal structure. Generally light color, glass luster, hardness 3-5.5, specific gravity 1.9-2.4cm 3 , Zeolites are used as "molecular sieves" that can adsorb or filter molecules of other subst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28
CPCY02W10/37
Inventor 张玉明刘丹刘敏章
Owner 云南宝尔湖泊治理有限公司