Scatter coating type oil-containing sediment treatment method

Abstract

The invention discloses a scatter coating type oil-containing sediment treatment method, and belongs to the technical field of environmental treatment. According to the invention, oil pre-absorption coating balls can be innovatively introduced to perform pre-adsorption treatment on dispersed oil-containing sediments, and when the oil-containing sediments are scattered on the oil pre-absorption coating balls based on the gravity action of the oil-containing sediments, the surfaces of the oil pre-absorption coating balls are promoted to correspondingly deform so as to wrap the oil-containing sediments. Then, an oil removal agent released by the extrusion action adsorbs and recovers crude oil separated from the oil-containing sediments, the weight of the oil-containing sediments is reduced after adsorption treatment, the oil-containing sediments are spitted out by the oil pre-absorption coating balls under the action of elastic reset, the oil-containing sediments slide into the next procedure along with the oil pre-absorption coating balls, the oil removal rate of the sediments can reach 90% or above at the moment, and the oil removal pressure of the subsequent procedure is greatly reduced. Moreover, oil stains adsorbed on the oil pre-absorption coating balls are easy to recycle and extract, the treatment efficiency of the oil-containing sediments is remarkably improved, and the treatment cost is well controlled.

Description

technical field [0001] The invention relates to the technical field of environmental treatment, and more specifically relates to a method for treating oily sediment with scattered point coating. Background technique [0002] Oily mud sand is one of the main pollutants produced by petroleum and petrochemical enterprises in the process of oil exploitation, storage and transportation, and refining and processing (dry weight oil content is generally above 10%, and most can reach 20%-30%). Higher other toxic and harmful substances such as organic matter and metal inorganic salts. Many polycyclic hydrocarbons (PAHs) in oily sediments are teratogenic, mutagenic and carcinogenic, and cause serious damage to human health through direct and indirect ways. PAHs can mainly cause skin cancer, lung cancer and stomach cancer, and the main harmful parts to the human body are the respiratory tract and skin. People are exposed to PAH-polluted environment for a long time, which can cause acut...

AI Technical Summary

Problems solved by technology

At the same time, the open-air stacking of polymer-containing waste in oily sediment not only wastes resources, but also pollutes the soil and the atmosphere. What is more serious is the migration and infiltration of petroleum hydrocarbons in the soil, which pollutes groundwater and damages aquatic ecosystems.

[0003] In the prior art, the method of direct cleaning is usually used, which not only wastes water resources greatly, but also has great processing difficulties in the subsequent oil-water separation, resulting in cumbersome and inefficient steps for extracting crude oil, and high processing costs

Images