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Oily sludge treatment system based on ultrasonic waves and process thereof

A sludge treatment and ultrasonic technology, which is used in sludge treatment, water/sludge/sewage treatment, immiscible solvent sludge treatment, etc. problem, to achieve the effect of improving sludge dryness, reducing oil content and improving sludge dryness

Pending Publication Date: 2021-06-01
扬州阿鲁达环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method not only consumes a lot of demulsifiers, but also easily produces chemical reagent residues, and if the ultrasonic frequency is set too high, it will easily cause emulsification, and if it is too low, the dehydration effect will be poor

Method used

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  • Oily sludge treatment system based on ultrasonic waves and process thereof

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment, the invention is further described:

[0030] Such as figure 1 As shown, an ultrasonic-based oily sludge treatment system includes sequentially connected pretreatment units, supercritical CO 2 Extraction unit, ultrasonic treatment unit and post-processing unit;

[0031] The pretreatment unit includes a pretreatment pool 1, the surface of the pretreatment pool 1 is provided with a drainage pump 2 for introducing oily sludge, and the bottom is provided with an outlet 3;

[0032] The supercritical CO 2 The extraction unit comprises an extraction reactor 4 connected to the pretreatment tank 1 at the side, and the bottom of the extraction reactor 4 is connected with supercritical CO 2 Generation module, the other side is connected with separation kettle 5, and the supercritical CO 2 The generation module consists of parallel supercritical CO 2 branch and carrier branch, the supercritical CO 2 Branch...

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Abstract

The invention discloses an oily sludge treatment system based on ultrasonic waves and a process thereof, belongs to the technical field of oily sludge treatment, and solves the problems of large chemical reagent consumption, poor dehydration effect and small treatment capacity in the oily sludge treatment process in the prior art. The oily sludge treatment system comprises a pretreatment unit, a supercritical CO2 extraction unit, an ultrasonic treatment unit and a post-treatment unit which are connected in sequence, and the pretreatment unit comprises a pretreatment pool, the supercritical CO2 extraction unit comprises an extraction reaction kettle, the bottom of the extraction reaction kettle is connected with a supercritical CO2 generation module, and the other side of the extraction reaction kettle is connected with a separation kettle. The treatment mode of supercritical extraction and high-power ultrasonic deep treatment is adopted, the oil content of the oil-containing sludge is reduced, the dryness of the sludge is improved, three-phase separation is effectively achieved, a demulsifier does not need to be added, the requirement for chemical reagents is reduced, meanwhile, after the sludge is subjected to high-power ultrasonic treatment, intermolecular gaps become small, agglomeration is good, and the dependence on a flocculating agent is reduced.

Description

technical field [0001] The invention belongs to the technical field of oily sludge treatment, and in particular relates to an ultrasonic-based oily sludge treatment system and a process thereof. Background technique [0002] Oily sludge refers to the oily solid waste produced in the process of oil extraction, transportation, refining and oily sewage treatment. Oily sludge is not only bulky and occupies arable land, but also contains a large amount of toxic and harmful substances in oil, causing serious harm to humans, animals and plants, and is one of the main pollutants in the petroleum and petrochemical industries. However, oil sludge has a high oil content and has a high recovery value. The composition of oily sludge can be roughly air water, emulsified oil or adsorbed oil, solid foreign matter, inorganic salts, etc. Oily sludge generally forms a stable suspended emulsion system in water, and it is difficult to achieve multi-phase separation. Ultrasonic demulsification ...

Claims

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Application Information

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IPC IPC(8): C02F11/13C02F11/14C02F11/15C02F11/18C02F11/00C02F11/127
CPCC02F11/18C02F11/002C02F11/15C02F11/14C02F11/13C02F11/127C02F2303/24C02F2209/03
Inventor 沈卫军
Owner 扬州阿鲁达环境科技有限公司
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