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Method for treating liquefied petroleum wastewater by using adsorption resin

A technology for liquefied petroleum wastewater and adsorption resin, which is applied in adsorption water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. Convenience and other issues, to achieve the effect of strong adsorption capacity, low cost and convenient regeneration

Inactive Publication Date: 2015-09-30
安徽皖东树脂科技有限公司
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Problems solved by technology

[0002] In the petroleum industry, a lot of wastewater will be produced, which not only contains organic harmful substances such as phenol, benzene, pyridine, indole and quinoline, some of the existing treatment methods use biological treatment methods, but the oxygen demand and The chroma is still very high. The most commonly used adsorbent for wastewater treatment by adsorption is activated carbon, which requires high regeneration costs and is inconvenient to use. The adsorption function, and has a better decolorization function, but the existing adsorption resins can not adsorb ammonia nitrogen organic matter well, such as pyridine, etc., and there are many ammonia nitrogen residues

Method used

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0019] A method for treating liquefied petroleum wastewater by using an adsorption resin, comprising the following steps,

[0020] (1) The waste water is passed into the inclined pipe for precipitation, and the sedimentation sludge is subjected to biochemical concentration treatment;

[0021] (2) carry out backwashing sand treatment to the wastewater after precipitation, add PAC and PAM to the solid after sand washing treatment, and pass water to carry out precipitation treatment again;

[0022] (3) The wastewater after recoil fine sand treatment is treated with adsorption resin;

[0023] (4) add zeolite powder in waste liquid after adsorption, add zeolite powder 7kg in every ton of waste water;

[0024] (5) Use hydrochloric acid and caustic sod...

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Abstract

The invention provides a method for treating liquefied petroleum wastewater by using adsorption resin and relates to the technical field of petroleum processing. The method is characterized by comprising the following steps: introducing the wastewater into a sloped tube to perform precipitation, and performing biochemical concentration treatment on precipitated sludge; performing sand back flushing treatment on the wastewater after precipitation, adding PAC (polyaluminium chloride) and PAM (polyacrylamide) into a solid after sand flushing treatment, and then introducing water to perform precipitation again; performing adsorption treatment on the wastewater after the sand back flushing treatment by using the adsorption resin; adding zeolite powder into the waste liquid after adsorption, wherein 5-10kg of the zeolite powder is added into each ton of the wastewater; performing circulating desorption treatment on the adsorption resin, which is saturated after adsorption, by using hydrochloric acid and sodium hydroxide solutions; and adsorbing the treated liquid again by using the adsorption resin, and then discharging or recycling the liquid. The method provided by the invention is good in adsorption effect, strong in adsorptivity, convenient in regeneration, environment-friendly and energy-saving, and low in cost.

Description

Technical field: [0001] The invention relates to the technical field of petroleum processing, in particular to a method for treating liquefied petroleum wastewater by using an adsorption resin. Background technique: [0002] In the petroleum industry, a lot of wastewater will be produced, which not only contains organic harmful substances such as phenol, benzene, pyridine, indole and quinoline, some of the existing treatment methods use biological treatment methods, but the oxygen demand and The chroma is still very high. The most commonly used adsorbent for wastewater treatment by adsorption is activated carbon, which requires high regeneration costs and is inconvenient to use. It has good adsorption function and good decolorization function, but the existing adsorption resins cannot adsorb ammonia nitrogen organic matter well, such as pyridine, etc., and there are many ammonia nitrogen residues. Invention content: [0003] The technical problem to be solved by the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/28
Inventor 薛兆能薛兆形薛宇胡怀建
Owner 安徽皖东树脂科技有限公司
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