Synchronous denitrification and phosphorus removal composite filler and preparation method and application thereof

A technology for simultaneous denitrification and phosphorus removal and composite fillers, which is applied in the field of simultaneous denitrification and phosphorus removal composite fillers and its preparation, can solve the problems of high energy consumption and limited effect of material denitrification and phosphorus removal, and achieve high curing strength and hardness , Improve the rate of autotrophic denitrification and promote the effect of dissolution

Inactive Publication Date: 2020-01-14
南京华创环境技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of high energy consumption and limited denitrification and phosphorus removal effect of the obtained material in the existing synchronous denitrification and phosphorus removal material preparation method, thereby providing a synchronous denitrification and phosphorus removal compound Filler, meanwhile, the present invention also provides the preparation method and application of said filler

Method used

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  • Synchronous denitrification and phosphorus removal composite filler and preparation method and application thereof
  • Synchronous denitrification and phosphorus removal composite filler and preparation method and application thereof
  • Synchronous denitrification and phosphorus removal composite filler and preparation method and application thereof

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Embodiment 1

[0032] This embodiment provides a composite filler for simultaneous denitrification and phosphorus removal, the raw materials of which are composed of the following components: pyrite powder (200 mesh) 350g, sulfur powder (100 mesh) 80g, limestone powder (100 mesh) 10g, silicon Salt cement (P·I 52.5) ​​96g, water 160g and 5% polyethylene glycol blowing agent aqueous solution 28g.

[0033] The preparation of the synchronous denitrification and dephosphorization composite filler by using the above raw materials includes the following steps:

[0034] (1) take by weighing pyrite powder, sulfur powder, limestone powder and portland cement of formula quantity respectively, mix evenly, must mix dry powder material;

[0035] (2) Add the clear water of formula quantity to above-mentioned mixed dry powder material, stir evenly, obtain mixed slurry;

[0036] (3) Add a formula amount of polyethylene glycol foaming agent to the above mixed slurry, stir and foam evenly for 10 minutes, pour...

Embodiment 2

[0039] This embodiment provides a composite filler for simultaneous denitrification and phosphorus removal, the raw materials of which are composed of the following components: pyrite powder (150 mesh) 330g, sulfur powder (80 mesh) 60g, limestone powder (80 mesh) 15g, silicon Salt cement (P·I 52.5) ​​95g, water 190g and 5% alkylbenzenesulfonic acid foaming agent aqueous solution 15g.

[0040] The preparation of the synchronous denitrification and dephosphorization composite filler by using the above raw materials includes the following steps:

[0041] (1) take by weighing pyrite powder, sulfur powder, limestone powder and portland cement of formula quantity respectively, mix evenly, must mix dry powder material;

[0042] (2) Add the clear water of formula quantity to above-mentioned mixed dry powder material, stir evenly, obtain mixed slurry;

[0043] (3) Add the alkylbenzene sulfonic acid foaming agent of formulation amount to above-mentioned mixed slurry, stir and foam evenly...

Embodiment 3

[0046] This embodiment provides a composite filler for simultaneous denitrification and phosphorus removal, the raw materials of which are composed of the following components: pyrite powder (150 mesh) 390g, sulfur powder (100 mesh) 60g, limestone powder (80 mesh) 10g, silicon Salt cement (P·I 52.5) ​​100g, water 205g and 4% foam concrete foaming agent aqueous solution 20g.

[0047] The preparation of the synchronous denitrification and dephosphorization composite filler by using the above raw materials includes the following steps:

[0048] (1) take by weighing pyrite powder, sulfur powder, limestone powder and portland cement of formula quantity respectively, mix evenly, must mix dry powder material;

[0049] (2) Add the clear water of formula quantity to above-mentioned mixed dry powder material, stir evenly, obtain mixed slurry;

[0050] (3) Add the animal protein foaming agent of formula quantity to above-mentioned mixed slurry, stir and foam evenly for 30 minutes, pour ...

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Abstract

The invention relates to the technical field of sewage treatment, and discloses a synchronous denitrification and phosphorus removal composite filler and a preparation method and application thereof.The composite filler comprises the following components in parts by weight: 15-20 parts of pyrite; 2-8 parts of sulfur; 0.5-1 part of carbonate minerals of calcium; 4.5-10 parts of Portland cement; 7.5-19.5 parts of water; and 0.5-3.0 parts of a foaming agent aqueous solution. Compared with a traditional sulfur autotrophic denitrification pyrite filler, the composite filler has a large specific surface area, high reactivity, light weight, and high hardness and strength, has efficient adsorption and precipitation effects on phosphorus, and has the characteristic that a large number of microorganisms can be loaded for biological denitrification, so that the composite filler is a multifunctional composite filler, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a synchronous nitrogen and phosphorus removal composite filler and its preparation method and application. Background technique [0002] With the rapid development of my country's social economy, especially the acceleration of urbanization, industrial wastewater and domestic sewage have brought great challenges to social development and the utilization of water resources. The phenomenon of eutrophication in water bodies is becoming more and more serious, and The main cause of water eutrophication is the excess of nitrogen and phosphorus nutrients in water. Therefore, the advanced treatment of nitrogen and phosphorus in sewage has become the focus and hot spot of sewage treatment in my country. [0003] There are many sewage treatment methods in the prior art. Some conventional biochemical treatment processes can effectively reduce the organic pollutants and suspended sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00C02F2003/001
Inventor 陈丹范俊顾若尘梁英赵鼎
Owner 南京华创环境技术研究院有限公司
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