Massive, harmless and recycling treatment of oily sludge

A treatment method and resource-based technology, applied in the field of oily sludge, can solve the problems of incapability of scale, high cost, and low treatment efficiency, and achieve the effect of large daily treatment volume, low treatment cost and low investment cost

Active Publication Date: 2018-09-07
张宝德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention provides a large-scale, harmless and resource-based treatment method for oily sludge, which overcomes the deficiencies of the prior art and can effectively solve the problems of high cost and low treatment efficiency in existing oily sludge treatment methods and the problem of incapable of large-scale, harmless and resourceful treatment of oily sludge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the large-scale, harmless and resourceful treatment method of the oily sludge is carried out according to the following steps: in the first step, the oily sludge, water and plant extract are mixed in a mass ratio of 1:4 to 5: 0.05 to 0.2 for mixing, crushing, stirring and aeration under a magnetic field, and then oscillating through a high-frequency vibrating screen. After the oscillation, the particles with a particle size greater than 0.5mm are separated to obtain a primary sieve residue, water, oil and particle size Particles less than or equal to 0.5mm pass through the mesh of the high-frequency vibrating screen and then enter the sedimentation separation tank. In the sedimentation separation tank, a primary solid layer, a primary water layer, and a primary oil layer are formed from bottom to top, and the primary water layer and primary oil layer are recovered; the second The first step is to add water and plant extract to the primary solid layer. The m...

Embodiment 2

[0027]Embodiment 2, the large-scale, harmless, and resourceful treatment method of the oily sludge is carried out according to the following steps: in the first step, the oily sludge, water and plant extract are mixed in a mass ratio of 1:4 or 5: 0.05 or 0.2 for mixing, crushing, stirring and aeration under a magnetic field, and then oscillating through a high-frequency vibrating screen. After oscillation, particles with a particle size greater than 0.5mm are separated to obtain a sieve residue, water, oil and particle size Particles less than or equal to 0.5mm pass through the mesh of the high-frequency vibrating screen and then enter the sedimentation separation tank. In the sedimentation separation tank, a primary solid layer, a primary water layer, and a primary oil layer are formed from bottom to top, and the primary water layer and primary oil layer are recovered; the second The first step is to add water and plant extract to the primary solid layer. The mass ratio of the...

Embodiment 3

[0028] Embodiment 3, as the optimization of above-mentioned embodiment, plant extract is sodium lignosulfonate, alkyl glucoside, coco acid aminopropyl betaine, octylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether and coconut More than one kind of amides.

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Abstract

The invention relates to the technical field of oily sludge, and relates to a massive, harmless and recycling treatment of oily sludge. The method comprises the following steps: mixing the oily sludge, water and plant extract, performing crushing, stirring and aeration under a magnetic field, oscillating the obtained mixture by a high-frequency vibrating screen, settling the oscillated mixture, adding water and the plant extract to obtain the obtained primary solid state layer, performing crushing, stirring and aeration under the magnetic field, oscillating the obtained mixture by the high-frequency vibrating screen, mixing the obtained secondary solid layer with primary screenings, and performing aerobic and anaerobic fermentation treatment to obtain treated oily sludge with the oil content of 0.3% or less. Compared with existing sludge treatment technologies, the method in the invention has the advantages of low investment cost, large daily treatment capacity, low treatment cost, high efficiency, meeting of environmentally-friendly and pollution-free treatment requirements, and good application prospect.

Description

technical field [0001] The invention relates to the technical field of oily sludge, and relates to a large-scale, harmless and resourceful treatment method for oily sludge. Background technique [0002] Oily sludge refers to the soil mixed with oil. Oil and water are immiscible. When oil is mixed with water, it will float on the water surface, but if oil is mixed with soil, it will mix together, forming an extremely difficult to handle sludge. of what we call "oily sludge". Oilfields will produce a certain amount of oily sludge in the process of oil and gas production, which mainly comes from two aspects: one is that the crude oil extracted from the oilfield is carried from the formation to the ground, or various containers, large tanks, and recycled sewage for refining and storage The siltation of ground facilities such as process containers and the sludge that is regularly cleaned; the second is the oil-contaminated soil caused by outdated equipment, improper operation, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F11/12C02F11/14C02F101/32C02F103/10
CPCC02F11/00C02F11/02C02F11/121C02F11/14C02F2101/32C02F2103/10
Inventor 张宝德黄启田张峰瑞
Owner 张宝德
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