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A carbon source for wastewater denitrification

A carbon source and denitrification technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, special compound water treatment, etc. Too high, high processing efficiency, and the effect of improving specific surface area

Active Publication Date: 2022-03-22
河北美卡诺生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the dosage of carbon source is not easy to control, and propose a carbon source for sewage denitrification

Method used

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  • A carbon source for wastewater denitrification
  • A carbon source for wastewater denitrification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In Example 1, a carbon source for sewage denitrification mainly consists of the following components by weight: 25 parts of glucose, 15 parts of maltose, 10 parts of polysaccharide, 10 parts of mango peel, 10 parts of coconut meat, coconut shell 30 parts of extract, 3 parts of titanium dioxide, 10 parts of calcium hydroxide, 50 parts of montmorillonite and 5 parts of polyacrylamide;

[0030] The preparation method of described carbon source, comprises the following steps:

[0031] S1. First add deionized water three times the volume of montmorillonite to montmorillonite, add polyacrylamide, then add titanium tetrachloride solution, stir slowly, and slowly add calcium hydroxide powder under the condition of 30°C, and wait for the solution When the pH value of the solution rises to 6-7, heat up to 85°C, add the remaining calcium hydroxide powder, continue stirring for 1 hour, and complete the stirring;

[0032] S2. After the stirring is completed, filter while it is hot,...

Embodiment 2

[0046] In Example 2, a carbon source for sewage denitrification mainly consists of the following components by weight: 35 parts of glucose, 25 parts of maltose, 20 parts of polysaccharide, 15 parts of mango peel, 15 parts of coconut meat, coconut shell 50 parts of extract, 6 parts of titanium dioxide, 20 parts of calcium hydroxide, 80 parts of montmorillonite and 10 parts of polyacrylamide;

[0047] The preparation method of described carbon source, comprises the following steps:

[0048]S1. First add deionized water six times the volume of montmorillonite to montmorillonite, add polyacrylamide, then add titanium tetrachloride solution, stir slowly, and slowly add calcium hydroxide powder under the condition of 30°C, and wait for the solution When the pH value of the solution rises to 6-7, heat up to 90°C, add the remaining calcium hydroxide powder, continue stirring for 1 hour, and complete the stirring;

[0049] S2. After the stirring is completed, filter while it is hot, a...

Embodiment 3

[0063] In Example 3, a carbon source for sewage denitrification mainly consists of the following components by weight: 30 parts of glucose, 20 parts of maltose, 15 parts of polysaccharide, 12 parts of mango peel, 12 parts of coconut meat, coconut shell 40 parts of extract, 4 parts of titanium dioxide, 15 parts of calcium hydroxide, 60 parts of montmorillonite and 7 parts of polyacrylamide;

[0064] The preparation method of described carbon source, comprises the following steps:

[0065] S1. First add deionized water 5 times the volume of montmorillonite to montmorillonite, add polyacrylamide, then add titanium tetrachloride solution, stir slowly, and slowly add calcium hydroxide powder under the condition of 30°C, and wait for the solution When the pH value of the solution rises to 6-7, the temperature is raised to 88°C, the remaining calcium hydroxide powder is added, and the stirring is continued for 1 hour until the stirring is completed;

[0066] S2. After the stirring i...

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Abstract

The invention relates to the technical field of denitrification of sewage, in particular to a carbon source for denitrification of sewage, which is mainly composed of the following components by weight: 25-35 parts of glucose, 15-25 parts of maltose, 10-20 parts of polysaccharide, Mango peel 10‑15 parts, coconut meat 10‑15 parts, coconut shell extract 30‑50 parts, titanium dioxide 3‑6 parts, calcium hydroxide 10‑20 parts, montmorillonite 50‑80 parts and polyacrylamide 5‑ 10 parts, the carbon source proposed by the present invention contains coconut shell extract. During the coconut shell treatment process, the nitrogen content in the coconut shell is reduced by crushing, boiling, proteolytic enzyme treatment and washing treatment. Drying treatment can remove some volatile organic matter in coconut shell, increase the specific surface area of ​​coconut shell, and facilitate the attachment of microorganisms. At the same time, coconut shell extract can be used as the second carrier of glucose, maltose, polysaccharide mango peel and coconut meat. Microorganisms can Rapid propagation centered on coconut shell extract, high efficiency of sewage treatment.

Description

technical field [0001] The invention relates to the technical field of denitrification of sewage, in particular to a carbon source used for denitrification of sewage. Background technique [0002] In the context of increasingly serious water eutrophication, water environment nitrogen pollution control and wastewater denitrification treatment have become research hotspots in the field of water treatment. As an ecological and low-cost water treatment technology, constructed wetland has been widely used in the denitrification treatment of sewage and wastewater at home and abroad. There are many denitrification mechanisms in constructed wetlands, among which the nitrification-denitrification process is generally considered to be the most important denitrification mechanism, and the nitrification-denitrification process is greatly affected by the supply level of carbon sources. Therefore, how to increase the C / N ratio to improve the nitrogen removal efficiency has become a resea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
CPCC02F3/302C02F2305/06
Inventor 张祖业张猛
Owner 河北美卡诺生物科技有限公司
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