Treatment method of copper material production circulating water

A treatment method and circulating water technology, applied in water/sewage treatment, metallurgical wastewater treatment, water treatment parameter control, etc., can solve problems such as electroplating wastewater environmental pollution, surface water, soil pollution, human and other biological hazards, and achieve Environmentally friendly, wide range of applications, and the effect of reducing head loss

Inactive Publication Date: 2020-01-07
GANZHOU JIANGWU NEW TYPE ALLOY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Circulating water is one of the chief culprits of water source and soil pollution. Due to the presence of heavy metals and carbon black in it, improper treatment of electroplating wastewater can easily cause seriou

Method used

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  • Treatment method of copper material production circulating water
  • Treatment method of copper material production circulating water
  • Treatment method of copper material production circulating water

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1:

[0043] Such as figure 1 , figure 2 As shown, a method for processing circulating water produced by copper materials includes the following steps:

[0044] S1. Drain the circulating water into the regulating tank 1. The regulating tank 1 is equipped with an automatic dosing device, including an alkaline chemical barrel 11, a metering pump 12 installed on the alkaline chemical barrel 11, and a pH control system connected to the metering pump 12 The pH control system includes a pH sensor 13 and a controller 14. The pH sensor 13 detects the pH value of the circulating water in the regulating tank 1 and feeds back the pH signal to the controller 14. The controller 14 controls the metering pump 12 to quantitatively add 2wt% sodium hydroxide Solution to make the pH of the circulating water between 8 and 8.2.

[0045] S2. Pump the circulating water with pH adjusted in step S1 into the integrated coagulation and precipitation equipment 2 through the submersible pump 15,...

Example Embodiment

[0049] Example 2:

[0050] Such as figure 1 , figure 2 As shown, a method for processing circulating water produced by copper materials includes the following steps:

[0051] S1. Drain the circulating water into the regulating tank 1. The regulating tank 1 is equipped with an automatic dosing device, including an alkaline chemical barrel 11, a metering pump 12 installed on the alkaline chemical barrel 11, and a pH control system connected to the metering pump 12 The pH control system includes a pH sensor 13 and a controller 14. The pH sensor 13 detects the pH value of the circulating water in the regulating tank 1 and feeds back the pH signal to the controller 14. The controller 14 controls the metering pump 12 to add 8.5wt% of hydroxide Sodium solution, make the pH of circulating water 8.5~8.8.

[0052] S2. Pump the circulating water with pH adjusted in step S1 through the submersible pump 15 into the flocculation reaction tank 21 in the integrated coagulation and sedimentation e...

Example Embodiment

[0055] Example 3:

[0056] Such as figure 1 , figure 2 As shown, a method for processing circulating water produced by copper materials includes the following steps:

[0057] S1. Drain the circulating water into the regulating tank 1. The regulating tank 1 is equipped with an automatic dosing device, including an alkaline chemical barrel 11, a metering pump 12 installed on the alkaline chemical barrel 11, and a pH control system connected to the metering pump 12 The pH control system includes a pH sensor 13 and a controller 14. The pH sensor 13 detects the pH value of the circulating water in the regulating tank 1 and feeds back a pH signal to the controller 14. The controller 14 controls the metering pump 12 to quantitatively add 6.5wt% of hydroxide Sodium solution, make the pH of circulating water 8.2~8.5.

[0058] S2. Pump the circulating water with pH adjusted in step S1 through the submersible pump 15 into the flocculation reaction tank 21 in the integrated coagulation and se...

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Abstract

The invention provides a treatment method of copper material production circulating water. The treatment method comprises the following steps: S1, discharging circulating water into an adjusting tank,and adding an alkaline reagent through an automatic dosing device to adjust the pH value of the circulating water to 8-9; S2, pumping the circulating water with the adjusted pH value, obtained in step S1 into a coagulation and precipitation integrated device, performing flocculation treatment, and then performing precipitation to obtain a supernatant and bottom sludge; S3, pumping the supernatantobtained in step S2 into an intermediate water tank, pumping the supernatant into a filter tank when the liquid level reaches a certain degree, carrying out adsorption and filtration treatment, discharging obtained purified water into a clear water tank, and directly returning the purified water to the production process for use or discharging the purified water; and S4, pumping the sludge obtained in the step S2 into a sludge tank, pumping the sludge into a sludge compression device when the sludge is accumulated to a certain amount, performing filter pressing treatment, and discharging theobtained filtrate back into the adjusting tank, for treatment, through a pipeline. The method has a good purification effect on the circulating water, and the purified water is approximately neutral,has a pure chromaticity, and can be directly recycled or discharged outwards.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a treatment method for circulating water produced from copper materials. Background technique [0002] In the production process of copper materials, equipment cooling water and flushing water will be generated. These two streams of water cannot be separated. Currently, they are mixed together as circulating water for circulating cooling. The source of flushing water is tap water, and the circulating water discharged every day is about 20m 3 . In the production process, acetylene is used for combustion and heating. If the combustion is incomplete, carbon black will be produced, resulting in a high content of suspended solids in circulating water and excessive chroma. The main pollutants in the circulating water are suspended solids, Cu, Pb and Zn, etc., and the suspended solids content increases with the increase of the number of cycles, and the suspended solids co...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F11/122C02F101/20C02F103/16
CPCC02F1/001C02F1/52C02F1/5236C02F1/5281C02F1/56C02F1/66C02F9/00C02F11/122C02F2101/20C02F2103/16C02F2209/005C02F2209/06C02F2209/42
Inventor 叶少军张代荣朱峰
Owner GANZHOU JIANGWU NEW TYPE ALLOY MATERIAL
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