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Ceramic filler for wastewater treatment, production method for ceramic filler and wastewater treatment device

A technology for sewage treatment and production methods, applied in water/sludge/sewage treatment, special compound water treatment, chemical instruments and methods, etc. Low utilization rate and other problems, to achieve the effect of reducing follow-up processing costs, improving recycling utilization rate, and high carbon source utilization rate

Active Publication Date: 2016-04-13
WUXI HUAGUANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a kind of ceramsite filler for sewage treatment, which can solve the problem of difficult improvement of denitrification and phosphorus removal efficiency caused by the low utilization rate of carbon source in the existing spherical lightweight ceramsite, and sludge The problem of large volume and high cost of subsequent sludge treatment

Method used

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Examples

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Effect test

Embodiment 1

[0035]Step 1: first process ceramsite, and process clay, coal gangue, dried sludge and bamboo powder into ceramsite with micropores communicating with the outside through the method of burning and calcining. The moisture content of dried sludge is 30%; the specific processing process is:

[0036] (1) Pretreatment, put 100 parts by mass of raw materials into a ball mill and add water for ball milling. After ball milling, the mud is dehydrated and dried to form mud lumps, and then the mud lumps are broken into powdery mud to control the amount of mud. The fineness is 80 meshes, wherein the raw materials with a total mass fraction of 100 parts include 5 parts of dried sludge, 79 parts of clay and 16 parts of coal gangue;

[0037] (2) Add powdery mud and water into the molding machine to generate raw ceramsite, the mass fraction of water is 20%, and the particle size of raw ceramsite is 1.0cm;

[0038] (3) Calcination, put the raw ceramsite in an oven, gradually raise the tempera...

Embodiment 2

[0046] Step 1: first process ceramsite, and process clay, coal gangue, dried sludge and bamboo powder into ceramsite with micropores communicating with the outside through the method of burning and calcining. The moisture content of dried sludge is 35%; the specific processing process is:

[0047] (1) Pretreatment, put 100 parts by mass of raw materials into a ball mill and add water for ball milling. After ball milling, the mud is dehydrated and dried to form mud lumps, and then the mud lumps are broken into powdery mud to control the amount of mud. The fineness is 20 meshes, wherein the raw materials with a total mass fraction of 100 parts include 30 parts of dried sludge, 5 parts of bamboo powder, 32.5 parts of clay and 32.5 parts of coal gangue;

[0048] (2) Add powdery mud and water into the molding machine to generate raw ceramsite, the mass fraction of water is 60%, and the particle size of raw ceramsite is 2.0cm;

[0049] (3) Calcination, place the raw material cerams...

Embodiment 3

[0058] Step 1: first process ceramsite, and process clay, coal gangue, dried sludge and bamboo powder into ceramsite with micropores communicating with the outside through the method of burning and calcining. The moisture content of dried sludge is 40%; the specific processing process is,

[0059] (1) Pretreatment, put 100 parts by mass of raw materials into a ball mill and add water for ball milling. After ball milling, the mud is dehydrated and dried to form mud lumps, and then the mud lumps are broken into powdery mud to control the amount of mud. The fineness is 50 meshes, wherein the total mass fraction is 100 parts of raw materials including 17.5 parts of dried sludge, 2.5 parts of bamboo powder, 60 parts of clay and 20 parts of coal gangue;

[0060] (2) Add powdery mud and water into the molding machine to generate raw ceramsite, the mass fraction of water is 40%, and the particle size of raw ceramsite is 1.5cm;

[0061] (3) Calcination, place the raw material ceramsit...

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Abstract

The invention provides a ceramic filler for wastewater treatment, a production method for the ceramic filler and a wastewater treatment device. Through adoption of the ceramic filler for the wastewater treatment, problems that the improvement of the nitrogen and phosphorus removal efficiency is difficult, the sludge amount is large and the follow-up sludge treatment cost is high, which are caused by low carbon source utilization rate of conventional spherical light ceramic particles, are solved. The ceramic filler comprises a ceramic particle base body in which micro-holes communicated with the outer side are distributed, and is characterized in that carbon sources are filled in the micro-holes; the outer periphery of the ceramic particle base body is coated with a coating used for sealing the carbon sources in the micro-holes. In addition, the invention further provides the production method for the filler and the wastewater treatment device employing the filler.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a ceramsite filler for sewage treatment, a production method and a sewage treatment device. Background technique [0002] At present, the contact fillers used in the upgrading and transformation of many urban sewage treatment plants in China mainly include honeycomb fillers, soft fiber fillers, semi-soft fillers and spherical lightweight ceramsite. Honeycomb packing is generally made of glass fiber reinforced plastic or plastic material. The surface of the packing is smooth, the adhesion of the biofilm is poor, and it is easy to age, and the packing is often prone to clogging in different degrees in actual use; the soft fiber packing and semi-soft packing in water The flow state of the water flow is not ideal, and it is easy to be bonded together by the biofilm, resulting in ball formation, which greatly reduces the surface area, and then produces anaerobic effect inside...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/30C02F2003/001C02F2305/06
Inventor 王红军李雄伟薛一帆李冲张蕾
Owner WUXI HUAGUANG BOILER
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