Microbial agent for oil-sludge separation and oil-sludge separation method

Abstract

The invention discloses a microbial agent for oil-sludge separation and an oil-sludge separation method. The oil-sludge separation method includes: preparing a culture solution A-C, sterilizing at high pressure, respectively adding microorganisms a and b solely, and sealing; performing vortex stirring at 40-70 DEG C and 100-200rpm, and culturing for 16h; mixing the microorganisms a and b according to a ratio of 1:1 to obtain the microbial agent; mixing the microbial agent with oil-sludge according to a ratio of 1:1 and 2:1, performing vortex stirring at 40-70 DEG C and 100-200rpm, and allowing reaction for 20min-2h; standing after reaction is finished to obtain oil-sludge separated by the microbial agent after oil and soil are layered, wherein the microorganism a is bacillus denitrification thermophilus, and the microorganism b is thermal glucoside soil bacillus w-2. The oil-sludge separation method is simple in process and needed equipment, low in cost, environment-friendly and capable of treating series oil-sludge different in oil content (20-60%) according to needs, sandy soil after separation is low in oil content and clean, and the oil-sludge separation method is novel biotechnology for oil-sludge separation and has good application prospect.

Description

technical field [0001] The invention belongs to the technical field of oil sludge separation, and relates to a biotechnology and application of oil sludge separation, more specifically, a method and application of oil sludge separation using microbial bacterial agents. Background technique [0002] In the process of oil exploitation, storage and transportation, and refining and processing, some sludge with high oil content is often produced. If these sludge is piled up randomly, it will become an important source of pollution in the oil field and the surrounding environment. After oil enters the soil, it is difficult to remove, which not only destroys the soil structure, but also causes harm to the soil's own microorganisms and soil plant ecosystem. [0003] At present, the treatment methods for sludge waste generally include: chemical separation, decomposition, reinjection, landfill or incineration. However, these existing processing methods all have some obvious disadvant...

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Problems solved by technology

However, these existing processing methods have some obvious disadvantages

Such as the disadvantages of the chemical separation method: the separation efficiency is not high, the consumption of chemical reagents is large, the treatment is not thorough, and there is still a lot of pollution in the separated water and mud sand, which still needs to be repeatedly treated to achieve the target; Occupy a large amount of valuable fields and cause pollution transfer; the reinjection method is limited by the site and cannot completely seal the leakage of petroleum-based harmful substances and derivative chlorides in the oily sludge; the decomposition method is too expensive to operate and difficult to operate. The chemical decomposition agent will also cause secondary pollution; the incineration law wastes a lot of precious oil resources, does not conform to the principle of energy conservation and easily pollutes the air

Therefore, the above-mentioned several traditional methods cannot well solve the problem of sludge waste disposal.

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