Treatment of waste water in vanadium pentaoxide production and its full circulation technology

A vanadium pentoxide, full cycle technology, applied in the fields of vanadium oxide, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as wastewater pollution, and achieve the effect of reducing raw material consumption

Inactive Publication Date: 2007-07-18
刘强国 +1
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Problems solved by technology

[0005] *Purpose of the invention: The present invention is a kind of pollution treatment of vanadium pentoxide production wastewater and its full cycle technology, aiming to fundamentally solve the problem of wastewater pollution in the production of vanadium pentoxide, and through the recycling of wastewater, reduce Water consumption per unit of product, by reusing high-concentration sodium salt wastewater, thereby reducing the consumption of sodium chloride, the raw material for vanadium pentoxide production

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  • Treatment of waste water in vanadium pentaoxide production and its full circulation technology

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Embodiment Construction

[0019] For a vanadium pentoxide production enterprise, the tail water of its resin purification section and the treatment and circulation process of ammonium salt vanadium precipitation wastewater are shown in Figure 1.

[0020] 1. The treatment and circulation of the tail water in the resin adsorption purification section: through vanadium ore crushing, adding salt to make pellets, oxidation roasting, leaching, at this time the vanadium in the ore is converted into the leach solution, when the leach solution flows through the resin adsorption During the purification section, the vanadate ions are adsorbed onto the resin, and the tail water after the vanadate ions are adsorbed is recycled as a leaching solution. After the tail water is continuously circulated as a leaching solution for one week, the tail water is vulcanized once. Add 2 kg of iron sulfide ore powder and 1 kg of sodium sulfide to each ton of tail water, stir, and settle still. The cleared tail water will continue...

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Abstract

This invention provides a pollution process of vanadic anhydride production waste water and its entire circulation technique. Use end water of resin adsorbing extracting vanadium segment as soaking vanadium water of leaching segment, use ammonium salt immersing vanadium waste water that is added sodium chloride as vanadium salt stripping water of stripping segment, directly cyclically utilize in certain time; add iron sulfide mine powder and sodium sulfide into end water, add calcarea and sodium sulfide into immersing vanadium waste water, mix, stand still, precipitate, cyclically utilize clean liquid; eliminate high density natrium salt into saline water tank of salting producing ball segment, which is used as saline water of salting producing ball segment. This technique solves pollution problems of end water and immersing vanadium waste water in vanadic anhydride production. It also can utilize waste water natrium salt.

Description

Technical field: [0001] The invention belongs to the technical field of waste water pollution treatment of vanadium pentoxide production, and relates to technically solving the waste water pollution problem existing in the production of vanadium pentoxide. Background technique: [0002] The wastewater discharged from the production of vanadium pentoxide contains various pollutants such as hexavalent chromium, pentavalent vanadium, arsenic, mercury, cadmium, lead, ammonia nitrogen, etc. The pollution components are complex and the concentration of pollutants is high. At present, the treatment methods of this kind of wastewater include: a method for separating and recovering vanadium and chromium from vanadium-chromium mixed wastewater and vanadium and chromium wastewater (patent application number is 92111996.8); Chromium wastewater (patent application No. 89101708.9); electrolytic treatment of vanadium and chromium-containing wastewater (patent application No. 86106414); a p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/62C01G31/02
Inventor 刘强国唐红
Owner 刘强国
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