Method and device of 4010NA waste water treatment

A wastewater treatment and wastewater technology, which is applied in water/sewage treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc. The effect of reducing the cost of wastewater treatment and using less equipment

Inactive Publication Date: 2016-03-23
山西翔宇化工有限公司
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  • Claims
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Problems solved by technology

[0002] The temperature of the wastewater generated during the 4010NA production process is relatively high, and the COD content is 10,000-30,000ppm. Although most of the organic matter floats on the upper layer of the water phase, the content of dissolved organic matter in the water phase is also high at high

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  • Method and device of 4010NA waste water treatment

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Embodiment Construction

[0020] The following embodiments will further describe the present invention in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the wastewater generated in the production of 4010NA flows through the 4010NA wastewater pipeline 7 to the feed port of the heat exchanger 1, and the heat exchanger 1 uses a tube heat exchanger to cool the incoming wastewater to 30°C-35°C The final waste water flows out from the discharge port of heat exchanger 1 and enters through the middle feed port of phase separator 2. Phase separator 2 is an automatic phase separator with a sight glass for observing the oil-water phase interface. An oil phase discharge valve and a water phase discharge valve are provided. By adjusting the oil phase discharge valve and the water phase discharge valve, the oil-water phase interface is at the same height as the feed inlet, and the phase separation temperature is 30°C-35°C. The oil phase flows into the oil phase collection pipeline 8...

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Abstract

The invention relates to a method and a device of 4010NA waste water treatment and belongs to the technical field of 4010NA waste water treatment. The invention provides the method and the device of the 4010NA waste water treatment, which are simple in process, are less in required apparatuses and are significantly reduced in cost. The device comprises a heat exchanger, a phase separator, a water phase transportation pump, a Fenton reaction kettle, a filter machine and a regulation tank. The method includes the following steps: reducing the temperature of waste water generated through 4010NA to 30-35 DEG C; performing phase separation through the phase separator, wherein a water phase is fed into the Fenton reaction kettle; regulating the pH in the Fenton reaction kettle to 3-4, and adding ferrous sulfate and hydrogen peroxide according to the molar ratio of 1:5-10 to the waste water, and stirring the waste water; regulating the pH to 7-8, filtering solid waste residue away through the filter machine, and feeding the waste water into the regulation tank; adding domestic wastewater into the regulation tank, regulating the COD content to be not more than 500 ppm; and finally feeding the waste water into a bio-chemical tank to performing bio-chemical treatment. The method and the device are mainly used in organic waste water treatment.

Description

technical field [0001] The invention relates to a method and a device for treating 4010NA wastewater, belonging to the technical field of 4010NA wastewater treatment. Background technique [0002] The temperature of the wastewater generated during the 4010NA production process is relatively high, and the COD content is 10,000-30,000ppm. Although most of the organic matter floats on the upper layer of the water phase, the content of dissolved organic matter in the water phase is also high at high temperature. At this time, the wastewater is not only divided Phase is difficult, and a large amount of Fenton's reagent needs to be added later to degrade organic matter to meet the requirement that the COD content of the biochemical pool influent is ≤500ppm, and the cost of wastewater treatment is very high. Therefore, it is necessary to improve the prior art. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, a method and device for treat...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/40C02F1/722C02F3/00
Inventor 师谦张彩凤
Owner 山西翔宇化工有限公司
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