A kind of industrial advanced treatment method of vitamin C wastewater

An advanced treatment and vitamin technology, applied in the field of environmental engineering, can solve the problems of poor conversion efficiency, low actual treatment rate, low feasibility of industrialized operation, etc., and achieve the effect of preventing automatic decomposition and high catalytic activity.

Active Publication Date: 2021-02-23
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical problems in the prior art of poor conversion efficiency of experimental results, low actual treatment rate, low feasibility of industrial operation, and large deviation of industrial process operation parameters obtained, the present invention provides an industrial advanced treatment method for vitamin C wastewater

Method used

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  • A kind of industrial advanced treatment method of vitamin C wastewater
  • A kind of industrial advanced treatment method of vitamin C wastewater
  • A kind of industrial advanced treatment method of vitamin C wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The effluent of the secondary sedimentation tank from the wastewater treatment facility of a vitamin C production enterprise in Hebei was selected as the treatment object. A method for industrialized advanced treatment of vitamin C wastewater, comprising the following steps:

[0033] (1) Wastewater pretreatment: pump the wastewater into the filter device through the submersible pump, after filtering to remove the suspended matter in the water, adjust the pH=3, use the ozone machine to pass ozone into the filtered wastewater, and the ozone flow rate is 1.2m 3 / h, the time is 10min, and in the waste water after filtering, add the ozone slow-release carrier in 3 times, the total dosage of the ozone slow-release carrier is 4g / L, wherein, before the ozone is first passed into the After 3 minutes of the filtered waste water, the ozone slow-release carrier is dropped into in batches while the ozone is introduced, and it is continuously stirred until the ozone is introduced, an...

Embodiment 2

[0047] The effluent from the secondary sedimentation tank of a waste water treatment facility of a vitamin C production enterprise in Hebei is selected as the treatment object, and an industrial advanced treatment method for vitamin C waste water includes the following steps:

[0048] (1) Wastewater pretreatment: pump the wastewater into the filter device through the submersible pump, after filtering to remove the suspended matter in the water, adjust the pH=4, use the ozone machine to pass ozone into the filtered wastewater, and the ozone flow rate is 1.7m 3 / h, the time is 15min, and in the waste water after filtering, add the ozone slow-release carrier in 4 equal amounts, the total dosage of the ozone slow-release carrier is 5g / L, wherein, before the ozone is first passed into the After 4 minutes of the filtered waste water, the ozone slow-release carrier is dropped into in batches while the ozone is introduced, and it is constantly stirred until the ozone is introduced, and...

Embodiment 3

[0062] The effluent from the secondary sedimentation tank of a waste water treatment facility of a vitamin C production enterprise in Hebei is selected as the treatment object, and an industrial advanced treatment method for vitamin C waste water includes the following steps:

[0063] (6) Wastewater pretreatment: pump the wastewater into the filter device through the submersible pump, after filtering to remove the suspended matter in the water, adjust the pH=6, use the ozone machine to pass ozone into the filtered wastewater, and the ozone flow rate is 2.0m 3 / h, the time is 20min, and in the waste water after filtering, add the ozone slow-release carrier in 5 times, the total dosage of the ozone slow-release carrier is 6g / L, wherein, before the ozone is passed into the After 5 minutes of the filtered waste water, the ozone slow-release carrier is dropped into in batches while the ozone is introduced, and it is constantly stirred until the ozone is introduced, and the ozone is ...

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Abstract

The invention discloses a vitamin C wastewater industrialized advanced treatment method, which belongs to the technical field of environmental engineering and mainly includes: (1) wastewater pretreatment, (2) electrolytic oxidation pretreatment, (3) UBF-MBBR biological enhancement treatment, wherein, The ozone slow-release carrier is used to store excess ozone and pre-treat the wastewater. The ozone slow-release carrier can also enter the electrolytic oxidation pretreatment as electrode particles to promote the release of ozone under electrocatalysis for double oxidation and improve the biodegradability of wastewater. The final result is to use UBF-MBBR bio-intensified integrated reactor for final advanced treatment, so that the average values ​​of effluent TOC, chroma, ammonia nitrogen and total nitrogen are 51.4mg / L, 60 times, 3.78mg / L and 36.93mg / L respectively. In a word, the present invention has the advantages of large processing capacity, good actual processing rate, and high feasibility of industrial operation.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to an industrial advanced treatment method for vitamin C wastewater. Background technique [0002] VC is a well-known nutritional vitamin, which is an essential nutrient for humans, livestock, poultry and aquatic products. VC is closely related to improving immune response hormone synthesis, mineral absorption, and metabolism. Therefore, VC is also an essential substance for improving disease resistance, promoting growth, preventing and treating diseases. Widely present in biological tissues. However, because humans and many animals lack a gurolactone oxidase, they cannot synthesize it by themselves and must ingest it from the outside. As a necessary vitamin and antioxidant for the human body, it is widely used in the pharmaceutical industry, food industry, beverage industry, cosmetics industry and feed industry etc. [0003] The production of vitami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/16C02F103/34
CPCC02F1/001C02F1/4672C02F1/66C02F1/78C02F3/1268C02F9/00C02F2101/16C02F2103/34
Inventor 许柯任洪强耿金菊张徐祥黄辉
Owner NANJING UNIV
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