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Harmless treatment method for high-concentration pesticide organic waste liquid

A technology of harmless treatment and organic waste liquid, applied in chemical instruments and methods, oxidized water/sewage treatment, combustion methods, etc., can solve unfavorable chemical continuous, automation, intensification, stabilization, ozone catalytic oxidation Problems such as large power consumption, low efficacy and efficiency, etc., achieve the effect of reducing disposal pressure and process burden, reducing processing burden, and improving efficiency

Inactive Publication Date: 2020-08-04
南京卓越环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. Ozone catalytic oxidation consumes a lot of power, too high COD and too many refractory polymer organic substances will inevitably affect its operating efficiency and effectiveness
[0006] At present, in the solid waste comprehensive disposal projects, there are few physical and chemical disposal units, even if there are many idle devices, even if they are barely running, their effectiveness and efficiency are low, and the operation is difficult and difficult to make profits, which is not conducive to the industry's true sense. The continuous, automated, intensified, and stabilized direction of chemical industry has become a defect in the comprehensive disposal of solid waste

Method used

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  • Harmless treatment method for high-concentration pesticide organic waste liquid
  • Harmless treatment method for high-concentration pesticide organic waste liquid
  • Harmless treatment method for high-concentration pesticide organic waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The high-concentration pesticide waste liquid described in this example is anti-electric liquid, which contains dimethyl carbonate and lithium hexafluorophosphate, and the total content is less than 5%. It is directly processed by a channel, such as figure 1 shown, including the following steps:

[0027] (a1) Put the high-concentration pesticide organic waste liquid and the washing water of the packaging barrel into the still, turn on the steam for heating, and the collected low-boiling point substances directly enter the incineration system;

[0028] (a2) The waste liquid after the treatment in step (a1) is tested in the water phase and the COD of the characteristic pollutants is 13300mg / L, which is lower than 30000mg / L (COD standard value). It enters the ozone oxidation section and is first filtered by the water collection sedimentation tank. Remove floating matter and suspended solids in water, after flow rate 2m 3 / h, the pipeline booster pump with a head of 30m is...

Embodiment 2

[0033] The high-concentration pesticide waste liquid described in this example is evaporation waste liquid, which contains polyols, fatty acids and lipids, with a total content higher than 5%, and is directly processed by the b channel, such as figure 1 shown, including the following steps:

[0034] (b1) After the high-concentration pesticide organic waste liquid is treated with insoluble matter through the pipeline filter, it enters the static mixer with the diesel oil according to the flow ratio, and then enters the separation tower, the upper part flows out of the oil phase, and the lower part flows out of the water phase;

[0035] (b2) The oil phase enters a simple still, separates the extractant for recycling, and the extract enters an incinerator;

[0036] (b3) The COD of the characteristic pollutants detected in the water phase is 45000mg / L, which is higher than the standard value of COD of 30000mg / L. Continue to process the channel a, and the COD of the second detectio...

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Abstract

The invention discloses a harmless treatment method of high-concentration pesticide organic waste liquid, the harmless treatment method is divided into a channel a and a channel b for harmless treatment according to the components of the high-concentration pesticide organic waste liquid, and comprises the following steps: (a1) introducing the high-concentration pesticide organic waste liquid intoa distillation kettle, (a2) enabling the waste liquid in the step (a1) to enter an ozone oxidation section and then enter a biochemical facility, (b1) feeding the high-concentration pesticide organicwaste liquid and an extraction agent into a static mixer according to a flow ratio, then feeding into a separation tower, and enabling an oil phase to flow out from the upper part and a water phase toflow out from the lower part, (b2) feeding the oil phase into a simple distillation kettle, and (b3) enabling the water phase to enter an ozone oxidation section. The high-concentration pesticide organic waste liquid is subjected to effective pretreatment through extractive distillation before being subjected to catalytic ozonation and advanced oxidation, it is guaranteed that the high-concentration pesticide organic waste liquid enters ozone catalysis with a stable medium, the treatment pressure and the process burden of a workshop section are relieved by prolonging a process route, and thetreatment efficiency and the running state of equipment and facilities are effectively improved.

Description

technical field [0001] The invention belongs to the field of hazardous waste treatment, and in particular relates to a harmless treatment method for high-concentration pesticide organic waste liquid. Background technique [0002] High-concentration ozone has a unique effect on biochemically difficult organic high-concentration wastewater under the factor of alkali catalysis. The mechanism is that high concentration of ozone will produce a large amount of OH with stronger chemical reaction ability, which can change the structure of refractory organic matter into new substances, and introduce an oxygenated functional group on these substances to become biodegradable. As a result, it can decolorize and deodorize difficult-to-biochemical organic wastewater. Combining with traditional biochemical technology, it can further remove easily biodegradable pollutants, which greatly reduces the treatment cost, meets the national environmental protection discharge standard or makes the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14F23G7/04C02F101/30
CPCC02F9/00F23G7/04C02F1/04C02F1/78C02F1/26C02F3/00C02F2101/306
Inventor 周世磊卢开梅王洁郭宏王光辉
Owner 南京卓越环保科技有限公司
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