Drying treatment method of oil-containing sludge

A treatment method and sludge drying technology, which can be used in sludge treatment, water/sludge/sewage treatment, fixed/solidified sludge treatment, etc. Achieve the effect of no secondary pollution, high economic benefit and low treatment cost

Active Publication Date: 2017-05-10
TIANJIN ENVIRONMENTAL PROTECTION TECHNICAL DEV CENT DESIGNING INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing process has the following disadvantages: the solvent extraction method, chemical heat washing method, and pyrolysis treatment method all need to be processed again, the products are diverse, the process is complicated, and the cost is high; the incineration method has higher requirements on the oil content and water content of the sludge. The scope of application is narro

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  • Drying treatment method of oil-containing sludge

Examples

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Effect test

example 1

[0039] The waste to be treated is oily sludge without mechanical treatment

[0040] 1) Determining the moisture content of the sludge to be treated in the oily sludge, the measurement result is 71.3%, by weight g, configuration modifier, ethylene triamine 65g, carbon powder 25g, sodium hydroxide 10g, sodium lignosulfonate 20g, ten Dialkyl sodium sulfate 5g, zeolite 5g, wood vinegar 5g;

[0041] 2) Transport the oily sludge to be treated to the oily sludge drying treatment equipment, start stirring, and at the same time start the dosing mechanism in the oily sludge drying treatment equipment, and add the modifier at a ratio of 20% by weight;

[0042] 3) The sludge to be treated is continuously stirred in the oily sludge drying treatment equipment. After the stirring is sufficient, the crushing mechanism is opened to crush the modified sludge, and the qualified products are screened and discharged to make fuel powder.

example 2

[0044] The waste to be treated is the oily sludge after being filtered by the plate and frame filter press

[0045] 1) Determination of the water content of the sludge to be treated in the oily sludge, the measurement result is 60%, by weight g, configuration improver, ethylene triamine and diethylene triamine 45g, carbon powder 30g, potassium carbonate and alum 10g, improve Natural diatomite 15g, fatty alcohol polyoxyethylene ether 20g, zeolite and diatomite 10g, plant polyphenol 8g;

[0046] 2) Transport the oily sludge to be treated to the oily sludge drying treatment equipment, start stirring, and at the same time start the dosing mechanism in the oily sludge drying treatment equipment, and add the modifier at a ratio of 10% by weight;

[0047] 3) The sludge to be treated is continuously stirred in the oily sludge drying treatment equipment. After the stirring is sufficient, the crushing mechanism is opened to crush the modified sludge, and the qualified products are scree...

example 3

[0049]The waste to be treated is hydrocarbon-containing sludge that has not been mechanically treated.

[0050] 1) Determination of the water content of the oily sludge to be treated, the measurement result is 75.7%, by weight g, configuration improver, m-phenylenediamine 70g, carbon powder and sawdust 25g, alum or potassium nitrate 5g, calcium lignosulfonate 5g, propylene glycol methyl ether acetate 12g, activated carbon powder 6g, wood vinegar and plant polyphenol 8g;

[0051] 2) Transport the oily sludge to be treated to the oily sludge drying treatment equipment, start stirring, and at the same time start the dosing mechanism in the oily sludge drying treatment equipment, and add the modifier at a ratio of 20% by weight;

[0052] 3) The sludge to be treated is continuously stirred in the oily sludge drying treatment equipment. After stirring for 5 minutes, the crushing mechanism is turned on to crush the modified sludge, and the qualified products are screened and discharg...

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Abstract

The invention relates to a drying treatment method of oil-containing sludge. The drying treatment method is characterized in that, in an oil-containing sludge drying treatment device, modifying treatment is carried out on the oil-containing sludge by utilizing an added improver, and the oil-containing sludge is made into fuel powder with a high combustion heat value through agitating and disintegrating the oil-containing sludge. The drying treatment method comprises the following specific steps of measuring the water content of to-be-treated sludge of the oil-containing sludge, and preparing the improver; conveying to-be-treated oil-containing sludge into the oil-containing sludge drying treatment device, starting agitation, and adding the improver into the oil-containing sludge drying treatment device according to a proportion of 10 to 40; ceaselessly agitating to-be-treated greasy filth in the oil-containing sludge drying treatment device, after the agitation is sufficient, starting a disintegration mechanism, carrying out disintegration on the modified greasy filth, and making the greasy filth into the fuel powder. The drying treatment method of the oil-containing sludge has the following beneficial effects that the extra use of water and an extracting agent is not needed in a production process; no waste gas is generated; the secondary pollution does not exist; only are the agitation and the disintegration needed in a treatment process, so that an overall technical process can be completed.

Description

technical field [0001] The invention belongs to the field of solid hazardous waste treatment, in particular to a drying treatment method for oily sludge. Background technique [0002] The oily (hydrocarbon-containing) sludge is huge. If it is not treated and discharged directly, it will not only occupy a large amount of cultivated land, but also pollute the surrounding soil, water, and air, accompanied by the generation of malodorous gas. The sludge contains a large number of pathogenic bacteria and parasites. (egg), copper, zinc, chromium, mercury and other heavy metals, salts, which contain a large amount of benzene series, phenols, polychlorinated biphenyls, dioxins, anthracene, pyrene and other odorous toxic substances and radionuclides and other refractory toxic and harmful substances. Arbitrary landfilling will lead to serious pollution of groundwater and serious damage to natural ecology such as food crops, trees, and vegetation. At present, the treatment methods of...

Claims

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Application Information

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IPC IPC(8): C02F11/14C02F11/12C02F11/00C10L5/46
CPCC02F11/00C02F11/008C02F11/12C02F11/14C02F2101/32C02F2303/06C10L5/46C10L2290/08C10L2290/28Y02E50/10Y02E50/30
Inventor 孙贻超张泽生冯辉苏志龙王洋何达林小煦丁晔王森玮代小聪王旭平赵莹杨文珊赵凤桐马琳
Owner TIANJIN ENVIRONMENTAL PROTECTION TECHNICAL DEV CENT DESIGNING INST
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