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Preparation method of natural hollow netty plant solid carbon source for bio-denitrification

A solid carbon source and denitrification technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. Insufficient source instability and other issues, to achieve good biodegradability, low cost, and extended service life

Inactive Publication Date: 2013-03-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the traditional post-denitrification process of biological denitrification, liquid organic matter such as methanol or ethanol is mainly added as a carbon source, which will easily cause unstable carbon sources when put in, causing difficulties in the growth of denitrifying bacteria and affecting the biological denitrification process. s efficiency
At the same time, putting in organic matter as a carbon source has caused secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a natural hollow reticular plant solid carbon source for biological denitrification and denitrification, comprising the steps of:

[0018] 1) Process the mature fruit of natural plant loofah into loofah, and remove the kernels to obtain the processed loofah (or natural plant loofah hollow fiber material);

[0019] 2) Cut the processed loofah into multi-sections (such as 2 sections, cylinders of different sizes) to obtain cylindrical loofahs;

[0020] Select the fiber silk that organic fiber is made for use, according to the weight ratio of loofah and fiber silk 50: 1, wrap and wind the cylindrical loofah with fiber silk, obtain the coated and wound loofah;

[0021] 3) Put the wrapped loofah into a hollow filler ball made of organic fiber (the diameter of the hollow filler ball is 15cm, and the inner diameter is 12cm); obtain a natural hollow reticular plant solid for biological denitrification and denitrification Carbon source (i.e. hollow filler...

Embodiment 2

[0026] A method for preparing a natural hollow reticular plant solid carbon source for biological denitrification and denitrification, comprising the steps of:

[0027] 1) Process the mature fruit of natural plant loofah into loofah, and remove the kernels to obtain the processed loofah (or natural plant loofah hollow fiber material);

[0028] 2) Cut the processed loofah into multi-sections (such as 3 sections, cylinders of different sizes) to obtain cylindrical loofahs;

[0029] Select the fiber silk that organic fiber is made for use, according to the weight ratio of loofah and fiber silk 80: 1, wrap and wind the cylindrical loofah with fiber silk, obtain the coated and wound loofah;

[0030] 3) Put the wrapped loofah into a hollow filler ball made of organic fiber (the diameter of the hollow filler ball is 15cm, and the inner diameter is 12cm); obtain a natural hollow reticular plant solid for biological denitrification and denitrification Carbon source (i.e. hollow filler...

Embodiment 3

[0035] A method for preparing a natural hollow reticular plant solid carbon source for biological denitrification and denitrification, comprising the steps of:

[0036] 1) Process the mature fruit of natural plant loofah into loofah, and remove the kernels to obtain the processed loofah (or natural plant loofah hollow fiber material);

[0037] 2) Cut the processed loofah into multi-sections (such as 4 sections, cylinders of different sizes) to obtain cylindrical loofahs;

[0038] select the fiber silk made of organic fiber, according to the weight ratio of the loofah and the fiber silk of 100:1, use the fiber silk to coat and wind the cylindrical loofah, so as to obtain the coated and wound loofah;

[0039] 3) Put the wrapped loofah into a hollow filler ball made of organic fiber (the diameter of the hollow filler ball is 15cm, and the inner diameter is 12cm); obtain a natural hollow reticular plant solid for biological denitrification and denitrification Carbon source (i.e. ...

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Abstract

The invention relates to a preparation method of a natural hollow netty plant solid carbon source for bio-denitrification, which is characterized by comprising the following steps that: 1) the ripe fruit of a natural plant luffa is processed into vegetable sponges, the nutlet is removed, so the well processed vegetable sponges are obtained; 2) the well processed vegetable sponges are cut into a plurality of sections, so cylindrical vegetable sponges are obtained; the cellosilk which is made from organic fiber is selected, and is used to wrap and wind the cylindrical vegetable sponges according to the weight ratio of 1 : 1 to 100 : 1 of the vegetable sponges and the cellosilk, and the wrapped and wound vegetable sponges are obtained; 3) the wrapped and wound vegetable sponges are placed in a hollow stuffing ball which is made from the organic fiber; and the natural hollow netty plant solid carbon source for bio-denitrification is obtained. The invention has the characteristics of low cost, high nitrate removal rate, prolonged service life and no secondary pollution.

Description

technical field [0001] The invention relates to a method for preparing a solid carbon source for biological denitrification and denitrification, in particular to a method for preparing a natural hollow reticular plant solid carbon source for biological denitrification and denitrification. Background technique [0002] Nitrate is the main pollution indicator of groundwater pollution and surface polluted source water in various parts of my country, and it tends to increase year by year. Both nitrate and nitrite can be converted into nitrosamines that are "carcinogenic, mutagenic, and teratogenic" in the human body. In the biological denitrification process of water treatment, especially when dealing with slightly polluted source water or sewage with insufficient carbon source, it is necessary to add carbon source to provide carbon source and energy for microbial growth, and denitrifying bacteria use this energy to carry out denitrification reaction , reduce the nitrate contai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
Inventor 夏世斌吴振斌张义贺锋徐栋肖信彤
Owner WUHAN UNIV OF TECH
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