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Novel carbon source for sewage denitrification

A new type of carbon source technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, special compound water treatment, etc., can solve the problem of difficult control of carbon source dosage and avoid excessive carbon source concentration High, reduce production costs, and protect the environment

Active Publication Date: 2020-11-10
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 this invention is to solve the problem that the dosage of carbon source is not easy to control, and propose a new carbon source for sewage denitrification

Method used

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  • Novel carbon source for sewage denitrification
  • Novel carbon source for sewage denitrification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In Example 1, a novel 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 extract 30 parts, titanium dioxide 3 parts, calcium hydroxide 10 parts, montmorillonite 50 parts and polyacrylamide 5 parts;

[0030] The preparation method of described novel 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, an...

Embodiment 2

[0046] In Example 2, a novel 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 extract 50 parts, titanium dioxide 6 parts, calcium hydroxide 20 parts, montmorillonite 80 parts and polyacrylamide 10 parts;

[0047] The preparation method of described novel 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, and ...

Embodiment 3

[0063] In Example 3, a novel 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 extract 40 parts, titanium dioxide 4 parts, calcium hydroxide 15 parts, montmorillonite 60 parts and polyacrylamide 7 parts;

[0064] The preparation method of described novel 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 is c...

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Abstract

The invention relates to the technical field of sewage denitrification, in particular to a novel carbon source for sewage denitrification, which mainly comprises the following components in parts by weight: 25-35 parts of glucose, 15-25 parts of maltose, 10-20 parts of polysaccharide, 10-15 parts of mango peel, 10-15 parts of coconut meat, 30-50 parts of coconut shell extract, 3-6 parts of titanium dioxide, 10-20 parts of calcium hydroxide, 50-80 parts of montmorillonite and 5-10 parts of polyacrylamide. According to the present invention, the novel carbon source comprises the coconut shell extract; during the coconut shell treatment process, the crushing, the water boiling, the proteolytic enzyme treatment and the washing treatment are performed to reduce the nitrogen element content in the coconut shell; in addition, through crushing and vacuum drying treatment, some volatile organic matters in the coconut shells can be removed, the specific surface area of the coconut shells is increased, and attachment of microorganisms is facilitated; meanwhile, the coconut shell extract can serve as a second carrier of glucose, maltose, polysaccharide mango peel and coconut meat, and the microorganisms can be rapidly propagated with the coconut shell extract as the center; therefore, the sewage treatment efficiency is high.

Description

technical field [0001] The invention relates to the technical field of denitrification of sewage, in particular to a novel carbon source 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 rese...

Claims

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Application Information

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Patent Type & Authority Applications(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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