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Treatment method of complex tungsten polymetallic ore beneficiation wastewater
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A technology for polymetallic ore and beneficiation wastewater, which is applied in mining wastewater treatment, water/sewage treatment, water treatment parameter control, etc. Easy to handle reasonably, safe and convenient to use
Inactive Publication Date: 2019-12-17
HUNAN SHIZHUYUAN NON FERROUS METAL
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[0005] The present invention provides a treatment method for complex tungsten-polymetallic ore dressing wastewater, which can effectively solve the problem that polyferric sulfate plays in the application of wastewater COD treatment in the above-mentioned background technology is mainly coagulation, adsorption and sedimentation, supplemented by oxidation, which is difficult Treatment of wastewater with high COD (>130mg / L), and secondly, the COD of mineral processing wastewater is gradually increasing. As the grade of raw ore decreases year by year, the ore properties become more and more complex, making mineral processing more and more difficult, and the mineral processing agents used are relatively increased. Finally, the concentration of tailings becomes higher, and the concentration of chemicals in the mineral processing wastewater increases, which increases the COD of the wastewater. When the mineral processing wastewater is treated with polyferric sulfate alone, the pH value and suspended matter can reach the standard, but the COD of the external drainage is relatively high. , sometimes COD even exceeds the critical point (100mg / L) and fails to meet the standard, resulting in the shutdown of the concentrator. In addition, the amount of polyferric sulfate used is large and the cost of wastewater treatment is high.
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Embodiment 1
[0027] Embodiment 1: as figure 1 As shown, the present invention provides technical scheme, a kind of processing method of complex tungsten polymetallic mineral processing wastewater, comprises the steps:
[0029] S2, add 260mg / L·the amount of pulp polymerized ferricsulfate, and discharge the tailings pulp of the factory into the tailings pond;
[0030] S3, after stirring and reacting, settling still;
[0031] S4, discharge the supernatant into the clear water pool after standing and settling;
[0032] S5, add the sodium chlorate of 120mg / L consumption in supernatant liquid, carry out next step operation after stirring reaction;
[0033] S6, detect after precipitation, proceed to the next step after being qualified, add sodium chlorate if unqualified;
[0034] S7. Discharge up to standard after passing the test.
[0035] According to the above-mentioned technical scheme, the reaction ...
Embodiment 2
[0044] Embodiment 2: as figure 1 As shown, the present invention provides technical scheme, a kind of processing method of complex tungsten polymetallic mineral processing wastewater, comprises the steps:
[0046] S2, add 260mg / L·the amount of pulp polymerized ferric sulfate, and discharge the tailings pulp of the factory into the tailings pond;
[0047] S3, after stirring and reacting, settling still;
[0048] S4, discharge the supernatant into the clear water pool after standing and settling;
[0049] S5, add the sodium chlorate of 120mg / L consumption in supernatant liquid, carry out next step operation after stirring reaction;
[0050] S6, detect after precipitation, proceed to the next step after being qualified, add sodium chlorate if unqualified;
[0051] S7. Discharge up to standard after passing the test.
[0052] According to the above-mentioned technical scheme, the reaction ...
Embodiment 3
[0061] Embodiment 3: as figure 1 As shown, the present invention provides technical scheme, a kind of processing method of complex tungsten polymetallic mineral processing wastewater, comprises the steps:
[0062] S1. Discharge the tailings slurry of the concentrator into the combined shaft;
[0063] S2, add 260mg / L·the amount of pulp polymerized ferric sulfate, and discharge the tailings pulp of the factory into the tailings pond;
[0064] S3, after stirring and reacting, settling still;
[0065] S4, discharge the supernatant into the clear water pool after standing and settling;
[0066] S5, add the sodium chlorate of 120mg / L consumption in supernatant liquid, carry out next step operation after stirring reaction;
[0067] S6, detect after precipitation, proceed to the next step after being qualified, add sodium chlorate if unqualified;
[0068] S7. Discharge up to standard after passing the test.
[0069] According to the above technical scheme, the reaction was stirre...
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Abstract
The invention discloses a treatment method of complex tungsten polymetallic ore beneficiationwastewater. The treatment method comprises the following steps: S1, discharging tailings pulp of a beneficiationplant into a combination well; S2, adding polyferric sulfate with the amount of 260 mg per L of ore pulp, and discharging the factory tailing pulp into a tailing pond; S3, after stirring reaction, standing and settling; S4, discharging the supernatant after standing and settling into a clean water tank; S5, adding sodiumchlorate with the amount of 120 mg / L into the supernatant, carrying out stirring reaction, and then carrying out next-step operation; S6, detecting after precipitation, carrying out next-step operation after qualification, and adding sodiumchlorate if disqualification;and S7, carrying out up-to-standard emission after qualification. The device is scientific and reasonable in structure and safe and convenient to use, COD of discharged water can be further effectively reduced, all indexes are guaranteed to reach the standard, the wastewater treatment process is more stable and reliable, continuous production of the beneficiationplant is guaranteed, meanwhile, the beneficiation wastewater treatment cost is obviously reduced, and other indexes such as supernatant suspended matters obtained after treatment are also qualified.
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