Denitrifying accelerator and application thereof

An accelerator, denitrification technology, applied in anaerobic digestion treatment, chemical instruments and methods, special compound water treatment, etc., can solve the problems of unstable biological denitrification effect, increase of wastewater salt content, and low denitrification efficiency. , to achieve the effect of being beneficial to denitrification efficiency, improving absorption efficiency and promoting microbial reproduction

Active Publication Date: 2019-07-23
普罗生物技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. As an external carbon source, methanol itself is a flammable and explosive chemical, which has strict requirements on the dosing equipment and is very dangerous; and it is a little toxic when it is added to the wastewater treatment system, which greatly limits the Methanol is used in sewage plants
[0006] 2. In the process of biological denitrification, sodium acetate is a carbon source with high denitrification efficiency, but after use, sodium acetate will introduce inorganic salts, which will increase the salt content of wastewater; Dissolving, which will inevitably cause fouling of pipeline equipment, and has a strong odor, making it inconvenient

Method used

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  • Denitrifying accelerator and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] The present embodiment provides a denitrification accelerator, which includes the following components:

[0094] (1) Glycerol 750kg

[0095] (2) Mineral elements 10kg, including Co(NO 3 ) 2 ·6H 2 O 3.95kg (cobalt 0.8kg), ZnCO 3 4.6kg (zinc 2.4kg), Mn(NO 3 ) 2 ·H 2 O 1.37kg (manganese 0.3kg), MgCO 3 ·3H 2 O 11.36kg (magnesium 2kg), NiNO 3 ·6H 2 O7.43kg (nickel 1.5kg), Na 2 MoO 4 2H 2 O 1.26kg (molybdenum 0.5kg), Fe 2 (SO 4 ) 3 17.85kg (iron 2.5kg)

[0096] (3) 10kg of organic acids, including 5kg of citric acid, 1.5kg of acetic acid, and 3.5kg of nucleotides

[0097] (4) 12kg of biological enzymes, including 4kg of protease, 3kg of cellulase, and 5kg of lipase

[0098] (5) Organic salt 25kg, including sodium gluconate 12kg, sodium citrate 13kg

[0099] (6) Carbohydrate 1.5kg, including chitosan 1.5kg

[0100] (7) Anionic surfactant 2kg

[0101] (8) Algae matter 1.5kg

[0102] Mix the above raw materials, add water to a total weight of 1000kg, stir...

Embodiment 2

[0104] The present embodiment provides a denitrification accelerator, which includes the following components:

[0105] (1) Glycerol 800kg

[0106] (2) Mineral elements 10kg, including Co(NO 3 ) 2 ·6H 2 O 3.95kg (cobalt 0.8kg), ZnCO 3 4.6kg (zinc 2.4kg), Mn(NO 3 ) 2 ·H 2 O 1.37kg (manganese 0.3kg), MgCO 3 ·3H 2 O 11.36kg (magnesium 2kg), NiNO 3 ·6H 2 O7.43kg (nickel 1.5k), Na 2 MoO 4 2H 2 O 1.26kg (molybdenum 0.5kg), Fe 2 (SO 4 ) 3 17.85kg (iron 2.5kg)

[0107] (3) 10kg of organic acids, including 5kg of citric acid, 1.5kg of acetic acid, and 3.5kg of nucleotides

[0108] (4) 10kg of biological enzymes, including 3kg of protease, 3kg of cellulase, and 4kg of lipase

[0109] (5) Organic salt 15kg, including sodium gluconate 6kg, sodium citrate 9kg

[0110] (6) Carbohydrate 1.5kg, including chitosan 1.5kg

[0111] (7) Anionic surfactant 2kg

[0112] (8) Algae matter 1.5kg

[0113] Mix the above raw materials, add water to a total weight of 1000kg, stir in...

Embodiment 3

[0115] The difference from Example 1 is that iron is not included in the mineral elements, the mass of manganese in the mineral elements is 0.28kg, and the mass of zinc is 2.22kg.

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Abstract

The invention relates to a denitrifying accelerator and application thereof. The denitrifying accelerator comprises the following components in percentage by mass: 75%-80% of polyhydric alcohols, 0. 7%-2.25% of mineral elements, 0.5%-1.0% of organic acid, 1.0%-2.5% of biological enzyme, and the balance of water, wherein the molecular weight of polyhydric alcohols is less than or equal to 100. Thedenitrifying accelerator is used for wastewater treatment, can achieve relatively high denitrification efficiency with little amount, can promote microbial diversity, is nonpoisonous and harmless, canbe added directly and conveniently through a metering pump without special protective measures, and also is less prone to inflammation and explosion and requires no extra explosion protection zone for storing carbon sources so as to save construction investment; at the same time, the denitrifying promoter has liquid carbon source with low freezing point, and thus does not condense even when not stored indoors in winter.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a denitrification accelerator and its application. Background technique [0002] Excessive total nitrogen in wastewater has always been a chronic problem in the sewage treatment system. Wastewater containing excessive nitrogen compounds discharged into ditches and rivers will cause eutrophication of the water body and affect the balance of the ecological environment. Nowadays, biological nitrification and denitrification process has been widely used in denitrification treatment. However, sewage treatment plants generally have the problem of insufficient carbon sources for denitrification, and the lack of carbon sources has seriously restricted the efficiency of biological denitrification. [0003] Biological denitrification is under anaerobic conditions, using organic carbon sources as electron donors and nitrate nitrogen as electron acceptors to convert NO x -N conver...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F3/34C02F101/16C02F101/38
CPCC02F3/28C02F3/342C02F2101/16C02F2101/38C02F2305/06
Inventor 王伟光
Owner 普罗生物技术(上海)有限公司
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