Method and system thereof for treating nickel hydrazine nitrate detonating medicine wastewater
A technology of nickel hydrazine nitrate and a treatment method, applied in multi-stage water treatment, water/sewage treatment, water treatment parameter control and other directions, to achieve the effects of improving work efficiency, thorough purification and good treatment effect
Inactive Publication Date: 2019-04-12
CHINA GEZHOUBA GRP YIPULI CO LTD
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Problems solved by technology
However, the nickel content in wastewater after three-stage precipitation is ≤1.0mg / L, which can meet the national discharge standards, but because Shandong Province’s discharge standard for nickel content in wastewater is ≤0.5mg / L, the existing treatment methods cannot completely meet this standard
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as figure 1 Described, the present invention provides a kind of treatment method of nickel hydrazine nitrate primer waste water, adopts the treatment system of nickel hydrazine nitrate primer waste water to process, and the treatment system of this nickel hydrazine nitrate primer waste water comprises three stages connected by pipeline successively Sedimentation tank 1, chemical sedimentation reaction tank 2 and neutralization treatment reaction tank 3;
[0024] The processing proceeds as follows:
[0025] The first step is to detonate the nickel hydrazine nitrate primer waste water first, add a sodium nitrite solution with a mass concentration of 25% and a nitric acid solution with a mass concentration of 10% to the nickel hydrazine nitrate primer waste water, and stir for 15 minutes to 20 minutes , and then add sodium hydroxide ...
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The invention discloses a method for treating nickel hydrazine nitrate detonating medicine wastewater. Treating is conducted by a system for treating the nickel hydrazine nitrate detonating medicine wastewater, the method comprises the steps of firstly conducting detonating removing on the nickel hydrazine nitrate detonating medicine wastewater; introducing the wastewater after the detonating removing into a tertiary sedimentation tank for precipitation treatment; then introducing the wastewater precipitated by the tertiary sedimentation tank into a chemical sedimentation reaction tank, addingan alkaline reagent to a reaction tank, and then conducting sedimentation treatment on a solution; finally, pumping the precipitated wastewater into a neutralization treatment reaction tank, adding an acidic solution until the pH of the wastewater is between 6 and 8, and completing a treatment process. The method can significantly reduce the nickel content (less than and equal to 0.5mg / L) in thenickel hydrazine nitrate detonating medicine wastewater, can monitor the nickel content of a sewage outlet of a workshop and a total sewage outlet of a plant in real time, improve the working efficiency, and achieve the nickel content standard discharging of the nickel hydrazine nitrate detonating medicine wastewater.
Description
technical field [0001] The invention relates to the technical field of priming waste water treatment, in particular to a treatment method and system thereof for nickel hydrazine nitrate priming waste water. Background technique [0002] Nickel hydrazine nitrate primer is a complex primer, which has the characteristics of simple manufacturing process, good product performance and stable quality. At present, the domestic preparation process of nickel hydrazine nitrate priming agent adopts the chemical synthesis preparation process. The main process is: nickel nitrate, hydrazine hydrate → compound → heat preservation → discharge → pumping and washing → weighting → drying → pouring → storage. Among them, the mother liquor in the preparation process of nickel hydrazine nitrate primer is recovered as the reaction bottom liquid, and the washing wastewater flows through the three-stage sedimentation tank after being detonated and enters the sewage treatment station. However, the ni...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C02F9/04C02F101/20
CPCC02F1/52C02F1/62C02F1/66C02F9/00C02F2101/20C02F2201/002C02F2209/06C02F2209/44C02F2301/08
Inventor 张锐刘志同杜华善陈文基郑冬冬陈姗姗
Owner CHINA GEZHOUBA GRP YIPULI CO LTD