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Medicament preparation process flow for purifying and treating wastewater from xylose production and use method thereof

A technology for waste water production and purification treatment, applied in chemical instruments and methods, adsorption water/sewage treatment, neutralized water/sewage treatment, etc., to achieve the effect of clear and transparent water quality

Inactive Publication Date: 2009-11-25
李界文
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of removal of harmful components and separation and purification of pollutants and water in xylose production chemical wastewater within 5 minutes by using a combination of chemistry and physics, so as to achieve the discharge of purified water up to standard or reuse production Wait
The medicament used is the separated waste residue which will not cause secondary pollution to the environment

Method used

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Examples

Experimental program
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Embodiment Construction

[0008] Composition standards and preparation methods of medicines

[0009] Drug No. 1: Crushed quicklime into powder and mixed with calcium carbide slag 1:1, then mixed with sodium hydroxide 3:7, and then diluted with tap water at a ratio of 1:3 to form a liquid with a pH of 14.

[0010] Drug No. 2: Mix solid polyaluminum chloride, polyferric chloride, and polysilicon chloride at a ratio of 7:2:1, then dilute with tap water 1:3, and then use 30% hydrochloric acid to adjust the pH value to 2- within 3.

[0011] No. 3 medicine: use Japanese-made amphoteric AMPAM with a molecular weight of 12-16 million, and domestic polyacrylamide with a molecular weight of 8 million, mix them together 8:2, and dilute with tap water 0.5g / l or 1g / l to prepare liquid.

[0012] Medicine No. 4: Dilute the 30-35% concentration of hydrogen peroxide to a concentration of 10%.

[0013] Instructions:

[0014] 1. When treating and purifying chemical wastewater from xylose production, you must first use...

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PUM

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Abstract

The invention discloses a medicament preparation process flow for purifying and treating wastewater from xylose production and a use method thereof, relating to the field of wastewater treatment and purification in the environmental-friendly chemical industry. In the invention, various chemical medicaments are prepared and diluted into liquid according to a certain proportion, and the liquid is dissolved in the chemical wastewater from xylose production in three or four stages in different time, thus chemical bonds in the wastewater and relatively balanced ion layers are damaged, the property of the wastewater is changed so that harmful impurities in water, such as COD, NH3-N, suspended substance, and the like are eliminated and completely separated from water and deposited, the water is clear and transparent, and the COD, the NH3-N and the pH value can all reach the wastewater discharge standard prescribed by the environmental protection administration or are reused for production. The wastewater can be continuously purified two or three times by the method, and the reagent and the method can not cause secondary pollution to a water body.

Description

technical field [0001] The invention relates to the field of purification and slag removal of xylose production chemical wastewater in the environmental protection industry. Background technique [0002] The purification of chemical wastewater discharged from xylose production not only has an acidic PH value, but also contains a high concentration of total salt and mixed wastewater with heavy acid and alkali components. The COD is between 3700mg / l-5000mg / l and the SS is between 980- 2100mg / l, NH3-N 78-167mg / l, dozens of times higher than the standard required by the national environmental protection department. The removal of high-level pollutants in wastewater cannot be completely solved by traditional methods of anaerobic, blast, amplitude flow, sedimentation or biological treatment. It can no longer be adapted to solve the problem that the current xylose production chemical wastewater caused by lignin with high chroma and high pollution poses certain harm to the ecologic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/66C02F1/52C02F1/78C02F1/42C02F1/28
Inventor 李界文
Owner 李界文
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