Kitchen waste oil purification treatment method and treatment device based on method

A technology for the purification and treatment of kitchen waste oil, applied in chemical instruments and methods, filtration treatment, sedimentation treatment, etc., can solve the problems of slow oil separation and treatment, easy environmental pollution of sediment, catalyst poisoning, etc. Improve efficiency and strong adsorption effect

Pending Publication Date: 2020-12-18
唐河金海生物科技有限公司
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Problems solved by technology

[0003] At present, the waste oil in the domestic kitchen waste is filtered after heating, and some solid impurities are filtered and separated by sedimentation. After sedimentation and separation, crude oil and oil residue are obtained. The raw material of crude oil is used to produce biodiesel, but the crude oil in crude oil Impurities include colloids (phospholipids and proteins), tiny solid particles and water. When used as raw materials for biodiesel, these phospholipids, proteins, tiny particles and water are prone to catalyst poisoning; oil residue contains 30-40% of oil and sand , Grease separation is slow, and it is heated and precipitated by discharging it into a large pool. After a long stacking time, it will cause an increase in acid value and environmental pollution. In addition, sediment is easy to pollute the environment.

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  • Kitchen waste oil purification treatment method and treatment device based on method

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[0017]The present invention will be further described below in conjunction with the drawings.

[0018]The present invention provides a method for purification and treatment of kitchen waste oil, which is achieved through the following steps:

[0019]1) The kitchen waste oil is heated and filtered, some solid impurities are filtered and then settled and separated, and crude oil and oil residue are obtained after the settlement and separation;

[0020]2) After crude oil is filtered, add waste glycerin at a ratio of 10:1 to waste glycerin needed for the production of crude oil and biodiesel, add a certain amount of water, waste glycerin is a strong polar solvent with a density of 1.26, and water is a polar solvent , The density is 1.0, the two become emulsion after mixing with crude oil, the density increases, the adsorption power is stronger, the ability to wash the colloid is stronger, and then separated by the butterfly centrifuge, the centrifugal force is large, the separation is sufficient ,

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Abstract

The invention discloses a kitchen waste oil purification treatment method and a treatment device based on the method, and the method comprises the following steps: heating kitchen waste oil, filtering, filtering some solid impurities, carrying out settlement separation, and obtaining crude oil and oil residue after settlement separation; after the crude oil is filtered, adding the crude oil and the waste glycerinum into the waste glycerinum according to the proportion of 10: 1, adding a certain amount of water so that the capacity of washing colloids is higher, then performing separation through a butterfly centrifugal separator, drying the obtained oil, and performing sewage treatment on separated waste water; homogenizing the oil residues through heating, generating an ionization phenomenon when the oil residues are boiled at 90 DEG C, and obtaining crude oil, wastewater and solid residues sequentially from top to bottom through three-phase separation, processing the obtained crude oil again through the step 2), and perfroming sewage treatment on the wastewater. Compared with the prior art, the method has the advantages that waste oil is thoroughly treated, the requirement for reducing environmental pollution is met, the requirement for manufacturing biodiesel raw materials is met, and the method has important significance in existing kitchen waste treatment.

Description

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Claims

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Application Information

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Owner 唐河金海生物科技有限公司
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