Co-processing method for oil depot cleaning waste liquor

Abstract

The invention discloses a co-processing method for oil depot cleaning waste liquor. The co-processing method comprises the following steps of: 1) adding an emulsifier into oil depot cleaning waste liquor, uniformly mixing, and standing, thereby forming a stable emulsified liquid; 2) mixing the emulsified liquid with sludge with moisture content of 65-75%, and mixing to obtain a slurry material, wherein the sludge is organic sludge or oil-containing sludge or a mixture thereof; and 3) conveying the slurry material into a cement kiln decomposition furnace through a plunger pump to perform incineration treatment. According to the co-processing method for the oil depot cleaning waste liquor disclosed by the invention, cement kiln incineration is utilized to perform innocent treatment on sludge and oil depot cleaning waste liquor, so that secondary pollution is not generated, treatment cost is low, process is simple, and stable and industrial production is easily performed. Cement enterprises are distributed over the country, and can be technically improved slightly to meet national co-processing requirements, so that compared with a newly-built common solid waste incineration production line, the co-processing method is lower in cost, is easier to implement, is great in processing amount, is low in energy consumption, is low in cost, and is a more environmentally-friendly processing mode.

Description

technical field [0001] The invention relates to a co-processing method for oil depot cleaning waste liquid, which belongs to the field of three wastes treatment. Background technique [0002] Gas stations and oil depots have a large amount of cleaning waste liquid, which contains a large amount of gasoline and diesel, solvents and cleaning agents. Currently facing the following processing difficulties: [0003] 1. The petroleum and COD in the waste liquid are very high. If it is treated as waste water, the disposal will be difficult and costly. For example, CN105152492A discloses a process and system for treating oily sewage in a product oil depot, the process is complicated and the cost is high. [0004] 2. If it is treated as incineration alone, most of it is water, which consumes a lot of heat, and is technically and costly unfeasible. [0005] 3. It is impossible to landfill the waste liquid. [0006] 4. No recycling value. [0007] In the face of the above disposal...

AI Technical Summary

Problems solved by technology

[0003] 1. The petroleum and COD in the waste liquid are very high. If it is treated as waste water, it will be difficult and costly to dispose of

For example, CN105152492A discloses a process and system for treating oily sewage in a product oil depot, the process is complicated and the cost is high

[0004] 2. If it is used as incineration alone, most of it will be water, which will consume a lot of heat, which is not feasible technically and costly

[0005] 3. It is impossible to landfill waste liquid

[0006] 4. No recycling value