Industrial wastewater heavy metal ion capturing agent, preparation method and wastewater treatment method
A technology for heavy metal ions and industrial wastewater, applied in water/sewage treatment, neutralized water/sewage treatment, water/sludge/sewage treatment, etc. Good capture effect, simple operation effect
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Embodiment 1
[0021] An industrial wastewater heavy metal ion scavenger, each component content is 1wt% 1,3,5-triazine-2,4,6-trithiol trisodium salt, 0.2wt% sodium sulfide, 0.2wt% thiol Sodium sulfate, the rest is deionized water. The preparation method is:
[0022] Step 1: Add 1,3,5-triazine-2,4,6-trithiol trisodium salt into deionized water at room temperature, and keep stirring for 10-30 minutes.
[0023] Step 2: Add sodium sulfide and keep stirring for 5-10 minutes.
[0024] Step 3: Add sodium thiosulfate and keep stirring for 5-10 minutes, and the heavy metal ion scavenger is prepared after completion.
[0025] The method for treating waste water with an industrial waste water heavy metal ion scavenger comprises the following steps:
[0026] Step 1: Prepare 10ppm nickel sulfate standard solution, which is the waste water sample solution as the nickel source.
[0027] Step 2: adjust the pH value of the nickel sulfate solution to 11.
[0028] Step 3: add the heavy metal ion scavenge...
Embodiment 2
[0032] An industrial wastewater heavy metal ion scavenger, the content of each component is 1wt% dithiocarbamate, 1wt% sodium sulfide, 0.5wt% urea, 0.5wt% xanthan gum, and the rest is deionized water. The preparation method is:
[0033] Step 1: Heat deionized water to 85°C in a reactor.
[0034] Step 2: After reaching temperature, dithiocarbamate was added and stirring was continued for 5 hours.
[0035] Step 3: Add sodium sulfide and keep stirring for 10 minutes.
[0036] Step 4: Add urea and keep stirring for 10 minutes.
[0037] Step 5: Add xanthan gum and keep stirring for 30 minutes. After completion, the heavy metal ion scavenger is prepared.
[0038] The method for treating waste water with an industrial waste water heavy metal ion scavenger comprises the following steps:
[0039] Step 1: Prepare 10ppm copper sulfate standard solution, which is the wastewater sample solution as the copper source.
[0040] Step 2: adjust the pH value of the copper sulfate solution t...
Embodiment 3
[0045] An industrial waste water heavy metal ion scavenger, each component content is 2wt% dithiocarbamate, 1wt% sodium sulfide, 0.5wt% sodium thiosulfate, 0.5wt% urea, 0.5wt% xanthan gum, the rest for deionized water. The preparation method is:
[0046] Step 1: Heat deionized water to 85°C in a reactor.
[0047] Step 2: After reaching temperature, dithiocarbamate was added and stirring was continued for 5 hours.
[0048] Step 3: Add sodium sulfide and keep stirring for 10 minutes.
[0049] Step 4: Add sodium thiosulfate and continue stirring for 5 minutes.
[0050] Step 5: Add urea and keep stirring for 10 minutes.
[0051] Step 6: Add xanthan gum and keep stirring for 30 minutes. After completion, the heavy metal ion scavenger is prepared.
[0052] The method for treating waste water with an industrial waste water heavy metal ion scavenger comprises the following steps:
[0053] Step 1: Prepare a nickel sulfate-copper sulfate mixed solution, wherein the contents of nic...
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