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Treatment method of oily sludge

A treatment method and sludge technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problem of high energy consumption, and achieve low energy consumption and economic benefits Great effect of reducing water consumption

Active Publication Date: 2018-04-06
东隆环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the operating conditions of this method are high temperature and high pressure, the energy consumption is relatively large, and it can only remove organic matter in oily sludge, so it is only suitable as a pretreatment method for oily sludge

Method used

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  • Treatment method of oily sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A treatment method for oily sludge, which is innovative in that it includes the following steps:

[0054] (1) For a conditioning treatment, 100g of sludge, 500g of water, 0.5g of sodium dodecylbenzenesulfonate, and 0.9g of polyaluminum chloride are thoroughly mixed by mechanical stirring, and the sludge is diluted from viscous is in a fluid state;

[0055] (2) Ultrasonic treatment. Ultrasonic treatment is performed on the mud-water mixture after the primary quenching and tempering treatment through ultrasonic equipment, and it is taken out after 30 minutes of action. The mechanical vibration and cavitation of ultrasonic waves are used to treat the oily sludge, forming a strong turbulent flow for the emulsion, thereby Make the oil, water, and mud in the sludge overcome the interfacial tension due to friction and separate from each other, especially for the cavitation of the sludge interface, it can quickly separate oil and solids;

[0056] (3) Secondary tempering treatm...

Embodiment 2

[0062] (1) Once conditioning treatment, 105g of sludge, 525g of water, 0.525g of sodium dodecylbenzenesulfonate, and 1.4g of polyaluminum chloride were mixed thoroughly by mechanical stirring, and the sludge was diluted from viscous is in a fluid state;

[0063] (2) Ultrasonic treatment. Ultrasonic treatment is performed on the mud-water mixture after the primary quenching and tempering treatment through ultrasonic equipment, and it is taken out after 30 minutes of action. The mechanical vibration and cavitation of ultrasonic waves are used to treat the oily sludge, forming a strong turbulent flow for the emulsion, thereby Make the oil, water, and mud in the sludge overcome the interfacial tension due to friction and separate from each other, especially for the cavitation of the sludge interface, it can quickly separate oil and solids;

[0064] (3) Secondary tempering treatment, adding 1.05 g of sodium silicate and 1.26 g of polyacrylamide, performing secondary conditioning tr...

Embodiment 3

[0070] A treatment method for oily sludge, which is innovative in that it includes the following steps:

[0071] (1) For a conditioning treatment, 110g of sludge, 550g of water, 0.55g of sodium dodecylbenzene sulfonate, and 1.3g of polyaluminum chloride are thoroughly mixed by mechanical stirring, and the sludge is diluted from viscous is in a fluid state;

[0072] (2) Ultrasonic treatment. Ultrasonic treatment is performed on the mud-water mixture after the primary quenching and tempering treatment through ultrasonic equipment, and it is taken out after 30 minutes of action. The mechanical vibration and cavitation of ultrasonic waves are used to treat the oily sludge, forming a strong turbulent flow for the emulsion, thereby Make the oil, water, and mud in the sludge overcome the interfacial tension due to friction and separate from each other, especially for the cavitation of the sludge interface, it can quickly separate oil and solids;

[0073] (3) Secondary tempering trea...

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Abstract

The invention relates to a treatment method of oily sludge. The treatment method is characterized by comprising the following steps of primary tempering treatment, ultrasonic treatment, secondary tempering treatment, centrifugal separation, drying and oil-water delamination. The method is scientific and reasonable in design, has the advantages of being easy to operate, easy to implement, low in energy consumption, small in investment, high in oil washing efficiency and high in economic benefit, and is a highly innovative treatment method of the oily sludge.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a treatment method for oily sludge. Background technique [0002] As the world's demand for oil and minerals continues to increase, soaring oil and mineral prices have stimulated countries with oil resources to develop new resources and new technologies. A mixture of various forms of soil or other media in which the oil cannot be directly recovered and may cause environmental pollution. Oil sludge generally has an oil content of 10% to 50%, and a water content of 40% to 90%, and its output is still increasing year by year. Oily sludge is a multiphase dispersion system rich in mineral oil with complex composition. It is a sludge formed by mixing clay particles, organic matter, flocs, microorganisms and their metabolites, and minerals. It is generally composed of oil-in-water (O / W), water-in-oil (W / O) and suspended solid impurities. Due to hydration, one or more layers of water ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C02F11/14C02F103/10
CPCC02F1/40C02F11/00C02F11/127C02F11/14C02F2103/10
Inventor 廖华栋
Owner 东隆环保科技有限公司
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