Treatment method and device for waste sulfonated mud

Abstract

The invention discloses a treatment device for waste sulfonated mud. The device comprises a feeding device, a tempering fluidization device, an ozone reaction device, a solid-liquid separation device,a circulating water tank and a stabilizing device; the feeding device is used for conveying a crushed and sieved sulfonated mud material; an inlet of the tempering fluidization device is connected with the feeding device, and the tempering fluidization device is used for injecting an aqueous solution and conducting stirring to obtain the homogeneous and fluid transition sulfonated mud; an inlet of the ozone reaction device is connected with an outlet of the tempering fluidization device, and the ozone reaction device is used for the oxygenolysis of organic pollutants in the transition sulfonated mud; the solid-liquid separation device is used for separating sulfonated mud from the aqueous solution in the transition sulfonated mud; an inlet of the circulating water tank is connected with an outlet of the solid-liquid separation device, and an outlet of the circulating water tank is connected with the tempering fluidization device; an inlet of the stabilizing device is connected with the solid-liquid separation device, and the stabilizing device is used for adding a stabilizing material to obtain harmless sulfonated mud. The invention further discloses a treatment method for the waste sulfonated mud. The treatment device for the waste sulfonated mud has the advantages of being simple in structure, low in energy consumption, free of secondary pollution, convenient to assemble andthe like.

Description

technical field [0001] The invention relates to the technical field of sulfonated mud treatment, in particular to a waste sulfonated mud treatment method and device. Background technique [0002] Waste sulfonated mud is the waste drilling mud and cuttings produced in the process of oil and gas drilling, which is prepared by adding high temperature resistant sulfonated materials. The sulfonated materials mainly include sulfonated phenolic resin (SMP ), sulfonated lignite (SMC), sulfonated tannin extract (SMK) and other sulfonated substances. Due to the variety of mud additives, the composition of drilling waste becomes more and more complex with the change of drilling depth. The waste usually has high turbidity, high content of suspended solids, high COD and high color. Due to the presence of harmful heavy metal ions, organic matter and molecular polymers that are not easily degraded by plants and animals in waste sulfonated mud, when the above-mentioned harmful substances e...

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Problems solved by technology

The chemical heat washing method adopts the principle of thermal precipitation, and its disadvantages are that the treatment of COD substances in the sulfonated mud is not thorough, and the residual amount is large, and this method has the defect of unstable treatment.

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