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Treatment method of sodium trichloropyridinol high-salt wastewater

A technology for sodium clopyridinate and high-salt wastewater, which is applied in water/sewage treatment, natural water treatment, biological water/sewage treatment, etc. It can solve the problems of high chroma of wastewater and large residual amount of sodium alkoxide

Pending Publication Date: 2021-04-30
CHONGQING HUAGE BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention intends to provide a treatment method for high-salt waste water containing 3,5,6-triclopyridin-2-alcohol sodium, to solve the problem of large residual sodium alkoxide and wastewater containing 3,5,6-triclopyridin-2-alcohol sodium after harmless treatment Technical issues with high chroma

Method used

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  • Treatment method of sodium trichloropyridinol high-salt wastewater
  • Treatment method of sodium trichloropyridinol high-salt wastewater
  • Treatment method of sodium trichloropyridinol high-salt wastewater

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Embodiment 1

[0029] The present embodiment illustrates the overall process flow, and the process flow of a kind of clopyridinol sodium high-salt wastewater treatment method of the present invention is as follows:

[0030] Conditioning pool collection steps

[0031] This process is for harmless treatment of high-salt mixed sodium alkoxide wastewater (referred to as wastewater), and the wastewater is first transported into the regulating pool. The temperature of the regulating pool is 30-35° C., and the pH value is 7.0-8.0. The regulating pool plays the role of collecting and storing wastewater. In this embodiment, the volume of the regulating pool is 100 L.

[0032] ABR processing steps

[0033] The wastewater enters the ABR pool through the lift pump, where the hydrolytic acidification reaction is carried out, and the macromolecular organic matter is degraded into small molecular substances, and some pollutants are removed. In this embodiment, there are six ABR pools, each ABR pool has a...

Embodiment 2

[0043] Embodiment 2-Example 4 is to carry out wastewater treatment according to the technological process of embodiment 1, specifically as follows: In the adjustment pool collection step, maintain the temperature of the adjustment pool between 30-35 ° C, and the pH value between 7.0-8.0 ; In the ABR treatment step, 7kg activated carbon particles (4 orders) and 4L EMO composite bacterial solution (4 × 10 6 each / ml), and maintain the water temperature in the ABR pool between 25-35 ° C, and the pH value between 6-9; in the SBR treatment step, 8L of EMO composite bacterial solution (4×10 6 / ml) and 13kg of activated carbon powder (50 mesh), and maintain the water temperature in the SBR pool between 25-35 °C, and the pH value between 6-9; 5kg activated carbon granules (4 mesh) and 3L EMO composite bacteria liquid (4×10 6 / ml), and maintain the denitrification tank water temperature between 25-35 ° C, pH value between 6-9; in the coagulation sedimentation treatment step, the coagul...

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Abstract

The invention relates to the technical field of organic wastewater treatment, and in particular, relates to a trichloropyridinol sodium high-salt wastewater treatment method which comprises an ABR treatment step, an SBR treatment step and a denitrification treatment step which are sequentially carried out; in the step of ABR treatment, activated carbon particles and an EMO composite bacteria solution are added into wastewater. According to the method, the technical problems that the residual amount of sodium alcoholate is large and the chromaticity of the wastewater is high after the wastewater containing sodium 3,5,6-trichloropyridin-2-olate is subjected to innocent treatment can be solved. The method can be applied to the practical operation of innocent treatment of sodium alcoholate wastewater with high salt concentration, high toxicity and high chroma, and has the advantages of good system repeatability, long-term efficient operation, low operation cost and the like.

Description

technical field [0001] The invention relates to the technical field of organic wastewater treatment, in particular to a treatment method for triclopyridinol sodium high-salt wastewater. Background technique [0002] 3,5,6-Sodium trichloropyridin-2-alcohol (referred to as sodium alkoxide) is one of the important intermediates for the synthesis of the pesticide chlorpyrifos, and the wastewater generated during its production process contains chlorobenzene, sodium chlorpyridinate, etc. Organic matter, and the wastewater has the characteristics of high salt concentration, high toxicity, high chroma (low content of sodium alkoxide wastewater will turn red after light), and is not easy to biodegrade. [0003] Chinese patent CN103922531A discloses the following technical solution: the combination of micro-nano bubble technology and iron-carbon micro-electrolysis technology. The wastewater containing 3,5,6-trichloropyridin-2-alcohol sodium was subjected to aeration and micro-electr...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/34C02F101/36C02F101/38C02F103/36
CPCC02F9/00C02F3/2806C02F3/284C02F3/305C02F3/34C02F1/5236C02F1/56C02F1/283C02F2101/36C02F2101/34C02F2101/38C02F2103/36
Inventor 陈志忠何小强芮正军林军李敬之
Owner CHONGQING HUAGE BIOCHEM
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