Nitrogen-removal phosphorus-removal composite filler and preparation method thereof

A composite filler, denitrification and phosphorus removal technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve the problem of high porosity of synthetic zeolite, inability to meet sewage treatment standards, and low cost And other issues

Inactive Publication Date: 2019-06-07
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention has a wide range of raw materials and low cost; the synthetic zeolite has a high porosity, and through the further treatment of the foaming agent, the obtained nitrogen and phosphorus removal material has a large porosity, which effectively avoids its pore blockage during adsorption, Guaranteed the smooth progress of adsorption, but according to the detection result that this application embodiment 1-3 provides, its removal rate to ammonia nitrogen is only about 50%, and the removal rate to phosphorus is only about 30%, can not meet the treatment standard of sewage

Method used

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  • Nitrogen-removal phosphorus-removal composite filler and preparation method thereof
  • Nitrogen-removal phosphorus-removal composite filler and preparation method thereof
  • Nitrogen-removal phosphorus-removal composite filler and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0118] Example 1 A kind of nitrogen and phosphorus removal composite filler with excellent water treatment effect

[0119] The composite filler is composed of the following raw materials in parts by weight: 10 parts of zeolite powder, 5 parts of activated carbon and 4 parts of iron powder;

[0120] Preparation method: comprising the following steps:

[0121] (1) zeolite particles are ground and sieved to obtain zeolite powder, which is set aside;

[0122] (2) active carbon is sieved, obtains active carbon powder, standby;

[0123] (3) getting particle size is the iron powder of 40-150um, for subsequent use;

[0124] (4) according to formula consumption, zeolite powder, iron powder and activated carbon powder are mixed evenly to obtain batching;

[0125] (5) Spray water evenly on the non-woven fabric to make the surface moist, and then coat the ingredients obtained in the step (4) on the non-woven fabric side surface;

[0126] (6) Lay the non-woven fabric wrapped with ingre...

Embodiment 2

[0129] Example 2 A kind of nitrogen and phosphorus removal composite filler with excellent water treatment effect

[0130] The composite filler is composed of the following raw materials in parts by weight: 45 parts of zeolite powder, 22.5 parts of activated carbon and 18 parts of iron powder;

[0131] Preparation method: comprising the following steps:

[0132] (1) zeolite particles are ground and sieved to obtain zeolite powder, which is set aside;

[0133] (2) active carbon is sieved, obtains active carbon powder, standby;

[0134] (3) getting particle size is the iron powder of 40-150um, for subsequent use;

[0135] (4) according to formula consumption, zeolite powder, iron powder and activated carbon powder are mixed evenly to obtain batching;

[0136] (5) Spray water evenly on the non-woven fabric to make the surface moist, and then coat the ingredients obtained in the step (4) on the non-woven fabric side surface;

[0137] (6) Lay the non-woven fabric wrapped with i...

Embodiment 3

[0140] Example 3 A kind of nitrogen and phosphorus removal composite filler with excellent water treatment effect

[0141] The composite filler is composed of the following raw materials in parts by weight: 100 parts of zeolite powder, 50 parts of activated carbon and 40 parts of iron powder

[0142] Preparation method: comprising the following steps:

[0143] (1) zeolite particles are ground and sieved to obtain zeolite powder, which is set aside;

[0144] (2) active carbon is sieved, obtains active carbon powder, standby;

[0145] (3) getting particle size is the iron powder of 40-150um, for subsequent use;

[0146] (4) according to formula consumption, zeolite powder, iron powder and activated carbon powder are mixed evenly to obtain batching;

[0147] (5) Spray water evenly on the non-woven fabric to make the surface moist, and then coat the ingredients obtained in the step (4) on the non-woven fabric side surface;

[0148] (6) Lay the non-woven fabric wrapped with ing...

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Abstract

The invention provides nitrogen-removal phosphorus-removal composite filler, and belongs to the technical field of treatment and repair of polluted water bodies. The nitrogen-removal phosphorus-removal composite filler is composed of the following raw materials: in parts by weight, 10-100 parts of zeolite powder, 5-50 parts of activated carbon and 2-40 parts of iron powder. The zeolite powder, activated carbon and iron powder are adopted as the raw materials of the nitrogen-removal phosphorus-removal composite filler, and the obtained nitrogen-removal phosphorus-removal composite filler has anexcellent water treatment effect through reasonable control on the weight ratio and particle size of the three raw materials; and the time of sewage treatment can be shortened obviously through interaction among the raw materials of the composite filler, efficient treatment of sewage in a short time can be ensured, and an ideal removal effect on nitrogen and phosphorus is achieved.

Description

technical field [0001] The invention belongs to the technical field of treatment and restoration of polluted water bodies, and in particular relates to a nitrogen and phosphorus removal composite filler and a preparation method thereof. Background technique [0002] my country is a country with a shortage of water resources. With the development of the local economy, especially the acceleration of urbanization and industrialization, the phenomenon of water shortage in cities and remote areas has become increasingly serious, and the large discharge of industrial wastewater and domestic wastewater has also caused Social development and the pollution of water resources have brought great problems. However, waterless treatment has become one of the important means to prevent and control water environmental pollution. The effectiveness of sewage treatment directly affects the quality of water environment in a region. The main feature of water resource pollution is the organic matt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/16C02F101/38C02F101/10
Inventor 牛勇牛远余辉姜霞王坤
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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