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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: 2012-06-27
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 preparation method of natural hollow netted plant solid carbon source for biological denitrification and denitrification, which comprises the following steps:

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

[0019] 2) Cut the processed loofah into multiple sections (for example, 2 sections, cylindrical in different sizes) to obtain a cylindrical loofah;

[0020] Select the fiber yarn made of organic fiber, and use the fiber yarn to wrap and wind the cylindrical loofah at the weight ratio of the loofah to the fiber yarn of 50:1 to obtain the wrapped loofah;

[0021] 3) Put the wrapped loofah into a hollow filler ball made of organic fibers (the diameter of the hollow filler ball is 15cm and the inner diameter is 12cm); the natural hollow netted plant solid for biological denitrification and denitrification is obtained Carbon source (that is, a hollow fi...

Embodiment 2

[0026] A preparation method of natural hollow netted plant solid carbon source for biological denitrification and denitrification, which comprises the following steps:

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

[0028] 2) Cut the processed loofah into multiple sections (for example, 3 sections, which are cylinders of different sizes) to obtain a cylindrical loofah;

[0029] Select the fiber yarn made of organic fiber, according to the weight ratio of the loofah to the fiber yarn of 80:1, wrap and wind the cylindrical loofah with the fiber yarn to obtain the wrapped loofah;

[0030] 3) Put the wrapped loofah into a hollow filler ball made of organic fibers (the diameter of the hollow filler ball is 15cm and the inner diameter is 12cm); the natural hollow netted plant solid for biological denitrification and denitrification is obtained Carbon source (that is...

Embodiment 3

[0035] A preparation method of natural hollow netted plant solid carbon source for biological denitrification and denitrification, which comprises the following steps:

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

[0037] 2) Cut the processed loofah into multiple sections (for example, 4 sections, cylindrical shapes of different sizes) to obtain a cylindrical loofah;

[0038] Select the fiber yarn made of organic fiber, according to the weight ratio of the loofah to the fiber yarn of 100:1, wrap and wind the cylindrical loofah with the fiber yarn to obtain the wrapped loofah;

[0039] 3) Put the wrapped loofah into a hollow filler ball made of organic fibers (the diameter of the hollow filler ball is 15cm and the inner diameter is 12cm); the natural hollow netted plant solid for biological denitrification and denitrification is obtained Carbon source (that is...

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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 ina 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 network plant solid carbon source for biological denitrification and denitrification. Background technique [0002] Nitrate is the main pollution indicator in groundwater pollution and ground surface polluted water source water in all parts of our country, and the trend is increasing year by year. Both nitrate and nitrite can be transformed into nitrosamines which are "carcinogenic, mutagenic and teratogenic" in the human body. In the water treatment biological denitrification and denitrification process, especially when treating micro-polluted source water or sewage with insufficient carbon source, it is necessary to add a carbon source to provide carbon source and energy for microbial growth, and denitrifying bacteria use this energy to perform denitrification reaction , Reduce ...

Claims

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Application Information

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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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