Catalytic particle carrier capable of synchronously removing nitrogen, phosphorus and fluorine and preparation method of catalytic particle carrier

A simultaneous denitrification and dephosphorization, particle technology, applied in the direction of catalyst carrier, chemical instrument and method, physical/chemical process catalyst, etc., can solve the problems of low fluorine removal efficiency, complicated treatment process, increased treatment cost, etc. Fluorine efficiency, improved denitrification efficiency, and no secondary pollution

Active Publication Date: 2021-07-23
北京京华清源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing denitrification and phosphorus removal processes / technologies have low fluoride removal efficiency, and to achieve efficient fluoride removal usually requires additional dosing of chemicals or additional water treatment units, which makes the treatment process more complicated and increases the treatment cost

Method used

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  • Catalytic particle carrier capable of synchronously removing nitrogen, phosphorus and fluorine and preparation method of catalytic particle carrier
  • Catalytic particle carrier capable of synchronously removing nitrogen, phosphorus and fluorine and preparation method of catalytic particle carrier
  • Catalytic particle carrier capable of synchronously removing nitrogen, phosphorus and fluorine and preparation method of catalytic particle carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The raw materials of the simultaneous denitrification, dephosphorization and defluorination catalytic particle carrier are powdered activated carbon, zero-valent iron powder, an additive composed of palygorskite, activated alumina and polyaluminium chloride, and composed of zero-valent copper, zero-valent titanium and zero-valent The catalyst is composed of cobalt valence, and the binder is composed of water glass and phenolic resin.

[0047] One of the ingredients of the simultaneous denitrification, dephosphorization and defluorination catalyst particle carrier is powdered activated carbon: zero-valent iron powder: additive: catalyst: binder = 45%: 35%: 12.5%: 2.5%: 5%. Its preparation specific method comprises:

[0048] Step 1, preparation additive (with palygorskite: polyaluminum chloride: activated alumina=90%: 2%: 8%), catalyst (zero-valent copper: zero-valent titanium: zero-valent cobalt=85%: 2.5%: 12.5%) and binder (water glass: phenolic resin=85%: 15%).

[00...

Embodiment 2

[0062] The raw materials of the simultaneous denitrification, dephosphorization and defluorination catalytic particle carrier are powdered activated carbon, zero-valent iron powder, an additive composed of palygorskite, activated alumina and polyaluminium chloride, and composed of zero-valent copper, zero-valent titanium and zero-valent The catalyst is composed of cobalt valence, and the binder is composed of water glass and phenolic resin.

[0063] One of the ingredients of the simultaneous denitrification, phosphorus and defluorination catalytic particle carrier is powdered activated carbon: zero-valent iron powder: additive: catalyst: binder = 45%: 37.5%: 10%: 2.5%: 5%. Its preparation specific method comprises:

[0064] Step 1, preparation additive (with palygorskite: polyaluminum chloride: activated alumina=90%: 2%: 8%), catalyst (zero-valent copper: zero-valent titanium: zero-valent cobalt=85%: 2.5%: 12.5%) and binder (water glass: phenolic resin=85%: 15%).

[0065] St...

Embodiment 3

[0077] The raw materials of the simultaneous denitrification, dephosphorization and defluorination catalytic particle carrier are powdered activated carbon, zero-valent iron powder, an additive composed of palygorskite, activated alumina and polyaluminium chloride, and composed of zero-valent copper, zero-valent titanium and zero-valent The catalyst is composed of cobalt valence, and the binder is composed of water glass and phenolic resin.

[0078] One of the ingredients of the simultaneous denitrification, dephosphorization and defluorination catalytic particle carrier is powdered activated carbon: zero-valent iron powder: additive: catalyst: binder = 45%: 30%: 15%: 5%: 5%. Its preparation specific method comprises:

[0079] Step 1, preparation additive (with palygorskite: polyaluminum chloride: activated alumina=90%: 2%: 8%), catalyst (zero-valent copper: zero-valent titanium: zero-valent cobalt=85%: 2.5%: 12.5%) and binder (water glass: phenolic resin=85%: 15%).

[0080]...

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Abstract

The invention relates to a catalytic particle carrier capable of synchronously removing nitrogen, phosphorus and fluorine and a preparation method of the catalytic particle carrier. The catalytic particle carrier comprises the following components: powdered activated carbon, zero-valent iron powder, an additive (a combination of palygorskite, activated aluminum oxide and polyaluminum chloride), a catalyst (a combination of zero-valent copper, zero-valent titanium and zero-valent cobalt) and an adhesive (a combination of water glass and phenolic resin). The catalytic particle carrier can remove 65%, 85% and 50% or above of nitrogen, phosphorus and fluorine within 1 h. The raw materials of the particle carrier are easy to obtain, the preparation method is simple, and industrial production of products is easy to realize.

Description

technical field [0001] The invention relates to a simultaneous denitrification, phosphorus and fluorine removal catalytic particle carrier and a preparation method thereof, belonging to the technical field of water treatment. Background technique [0002] Surface water and groundwater are the most important sources of water supply in my country. However, due to insufficient investment in pollution control and weak control measures in some areas, some untreated or substandard industrial wastewater, domestic sewage and agricultural non-point source pollutants are discharged into surface water and surface water bodies. Therefore, the eutrophication of surface water bodies and the pollution of groundwater have become common occurrences, resulting in the gradual reduction of water sources that can be directly used for water supply. Nitrogen, phosphorus, and fluorine are the main pollutants of eutrophication of surface water bodies and groundwater pollution, and usually exist in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J32/00B01J35/10C02F1/463C02F101/10C02F101/14C02F101/16
CPCB01J23/75B01J35/0033B01J35/1004C02F1/463C02F2101/16C02F2101/105C02F2101/14
Inventor 邓时海闫晓省万超陈林涛王笑风
Owner 北京京华清源环保科技有限公司
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