Cleaning agent for treating polymer-containing oil sludge and treatment method thereof

Abstract

The invention discloses a cleaning agent for treating polymer-containing oil sludge and a treatment method thereof. The cleaning agent is prepared by mixing 0.1-5% of a biological enzyme, 0.1-20% of a polymer digester, 1-5% of a low-density nano material, 1-10% of an alkali, 0.01-2% of an auxiliary agent and water according to the mass ratio. The treatment method comprises the following steps of: (1) putting a certain volume of oil sludge into a stirring and mixing device according to a mud-water ratio set by the water content of the oil sludge; after the biological enzyme, the polymer digester and the low-density nano material are prepared into the cleaning agent, pumping the cleaning agent to the stirring and mixing device; (2) pumping the cleaning agent into the stirring device, and heating the system; (3) starting a stirring and circulating system for stirring, mixing and flushing; (4) allowing flushing liquid to enter an oil-gas-water separation device for oil-gas-water separation, allowing separated oil to enter a collection and transportation system, performing evacuation after escaping gas reaches the standard, allowing the separated cleaning agent to enter a biological nano bubble generation device for recycling; and (5) allowing clean sediment to enter a sediment collection system, or directly discharging after pressure filtration and air drying of the clean sediment.

Description

technical field [0001] The invention relates to the field of oilfield chemical treatment agents, in particular to a treatment agent for oily sludge containing poly. Background technique [0002] Polymer-containing oil sludge, referred to as oil sludge, refers to the mixture of oil, water, polymer and mud and sand produced during the process of petroleum development, production and refining. [0003] In the process of oil extraction, storage, transportation, refining, etc., it is inevitable to produce a mixture called oil sludge containing oil, water, polymers, and silt particles. Direct discharge will lead to serious pollution of soil, surface and groundwater. , directly or indirectly harm plants, animals and human health. Oil sludge is a typical oil mining and refining waste. Because of its high oil, water and sediment content, direct discharge seriously pollutes the environment. It must be recycled, dehydrated, solidified, incinerated, etc. before it can be discharged up ...

AI Technical Summary

Problems solved by technology

[0011] In summary, the commonly used oil sludge treatment technologies (including the above-mentioned methods) generally have the following problems: ① high treatment costs; ② other secondary pollution, such as incineration requires incineration equipment, high investment costs, and releases during incineration Toxic and harmful substances, resulting in secondary pollution; ③Low oil removal rate, far from the "zero discharge standard"; ④Longer treatment cycle, large footprint, not suitable for rapid on-site treatment, such as microbial treatment; ⑤ The treatment of poly-containing sludge cannot be well solved, and the accumulation of poly-containing sludge has become a great problem that plagues production

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