Cutting fluid wastewater treatment method

A treatment method and cutting fluid technology, applied in the field of cutting fluid wastewater treatment, can solve problems such as organ lesions, endangering human health, etc., and achieve good removal rate, good removal effect, and good adsorption effect

Inactive Publication Date: 2018-02-23
苏州市宽道模具机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For these additives, it is basically impossible to completely degrade them in a short period of time. These substances that cannot be degraded in a short period of time will eventually be com

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] A method for treating cutting fluid wastewater, including the following steps:

[0020] (1) Add concentrated sulfuric acid to the cutting fluid wastewater, stir while adding, adjust the pH to 2, stand for 12 hours to separate, and remove the lower layer of wastewater;

[0021] (2) Add sodium hydroxide to adjust the pH to 7;

[0022] (3) Add 3wt‰ of polystyrene latex microspheres and 3wt‰ of activated carbon fiber, put them in an ultrasonic oscillator, and perform ultrasonic vibration at an ultrasonic power of 300W for 20 minutes;

[0023] (4) Add 1wt‰ of Scenedesmus esculenta powder, 4-7wt‰ of needle-shaped fiber algae powder and 2wt‰ of citrus residue, heat to 40℃ and stir for 20 minutes, filter, and remove the filter residue;

[0024] (5) Add 3wt‰ of D3520 macroporous adsorption resin, 1wt‰ of carbon molecular sieve and 3wt‰ of D314 macroporous weak alkaline anion resin, stir at 200r / min for 30 minutes, filter, and remove filter residue;

[0025] (6) Pass the t...

Example Embodiment

[0027] Example 2

[0028] A method for treating cutting fluid wastewater, including the following steps:

[0029] (1) Add concentrated sulfuric acid to the cutting fluid wastewater, stir while adding, adjust the pH to 2.5, stand for 13 hours to separate, and remove the lower layer of wastewater;

[0030] (2) Add sodium hydroxide to adjust the pH to 7;

[0031] (3) Add 4wt‰ of polystyrene latex microspheres and 5wt‰ of activated carbon fiber, put them in an ultrasonic oscillator, and perform ultrasonic oscillation at an ultrasonic power of 350W for 30 minutes;

[0032] (4) Add 2wt‰ of Scenedesmus acuminata powder, 6wt‰ of needle-shaped fiber algae powder and 3wt‰ of citrus residue, heat to 50°C and stir for 30 minutes, filter, and remove the filter residue;

[0033] (5) Add 4wt‰ of D3520 macroporous adsorption resin, 2wt‰ of carbon molecular sieve and 4wt‰ of D314 macroporous weakly alkaline anion resin, stir at 250r / min for 35 minutes, filter, and remove filter residue;

[0034] (6) Pass ...

Example Embodiment

[0036] Example 3

[0037] A method for treating cutting fluid wastewater, including the following steps:

[0038] (1) Add concentrated sulfuric acid to the cutting fluid wastewater, stir while adding, adjust the pH to 3, stand for 14 hours to separate, and remove the lower layer of wastewater;

[0039] (2) Add sodium hydroxide to adjust the pH to 7;

[0040] (3) Add 6wt‰ of polystyrene latex microspheres and 6wt‰ of activated carbon fiber, put them in an ultrasonic oscillator, and perform ultrasonic vibration at an ultrasonic power of 400W for 40 minutes;

[0041] (4) Add 3wt‰ of Scenedesmus acuminata powder, 7wt‰ of needle-shaped fiber algae powder and 4wt‰ of citrus residue, heat to 60°C and stir for 40 minutes, filter, and remove the filter residue;

[0042] (5) Add 5wt‰ of D3520 macroporous adsorption resin, 3wt‰ of carbon molecular sieve and 5wt‰ of D314 macroporous weakly alkaline anion resin, stir at 300r / min for 40 minutes, filter, and remove filter residue;

[0043] (6) Pass the ...

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PUM

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Description

technical field [0001] The invention relates to a treatment method for cutting fluid waste water. Background technique [0002] Metal and its alloys usually use a kind of lubricating oil in the process of cutting, forming, grinding, etc., to cool and lubricate the cutting tool and workpiece. This liquid is called cutting fluid. When using metal cutting fluid, some impurities will be generated more or less, which may be metal particles caused by tool wear, or some dust, waste oil, etc. Cutting fluid, also known as coolant, has many types and different functions. They are generally formulated with water, surfactants and some additives. After the cutting fluid is used, the number of bacteria will continue to increase, and the performance will continue to decrease, so it is essential to replace it regularly. If the unusable cutting fluid is not replaced for a long time, the ultimate goal will not be achieved, and the effect of the processed workpiece will not be very good, so ...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F101/20C02F101/16
CPCC02F9/00C02F1/001C02F1/283C02F1/285C02F1/286C02F1/36C02F1/44C02F1/66C02F2001/007C02F2101/105C02F2101/16C02F2101/20C02F2209/02C02F2209/03C02F2209/08C02F2209/14C02F2301/08
Inventor 廖锡林
Owner 苏州市宽道模具机械有限公司
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