3results about How to "Short stabilization time" patented technology

The invention belongs to the technical field of water treatment, and relates to a method for decomposing iohexol and acetochlor by far ultraviolet light. The method comprises the following steps: S1, adjusting the pH value of a to-be-treated aqueous solution containing target pollutants to 4-10; and S2, carrying out a reaction under an ultraviolet wavelength of 200 to 230 nm. Compared with the prior art, the method not only can efficiently degrade iohexol and acetochlor, but also can treat other new pollutants with different structures in surface water; the method has the advantages of no secondary pollution, low cost, simple process, no mercury leakage risk and the like, and ensures the use safety and stability.

The invention discloses a water-control acidification plug removal system and process for an oil well of a loose sandstone reservoir. The water control acidification blockage removal system comprises a water control system and a blockage removal system; a preparation method of the water control system comprises the following steps: adding a surfactant with the mass fraction of 1-3% into diesel oil, mixing with clear water according to a certain proportion, stirring, and oscillating to form a water-in-oil emulsion system; the blocking removal system comprises the following components in percentage by mass: 5-15% of hydrochloric acid, 5-10% of fluoboric acid, 0.5-1% of a corrosion inhibitor, 1-2% of an iron ion stabilizer, 1-4% of an anti-swelling agent, 0.5% of a demulsifier, 0.5% of a cleanup additive and the balance of water. The water control acidification plug removal process comprises the following steps: sequentially injecting an oil-soluble cleaning agent, hydrochloric acid, a plug removal system, a spacer fluid, a water control system, a spacer fluid, a plug removal system, hydrochloric acid and a displacing fluid into a shaft, and then opening a well for production. The method is reliable in principle and easy and convenient to operate, and balanced acidification of the whole well section can be achieved while the high aquifer can be temporarily plugged.

The application discloses a method for separating lithium from high magnesium-lithium ratio salt lake brine, comprising the following steps: S1, mixing gas and liquid in a nanobubble generator to obtain nanobubble liquid by the nanobubble generator; S2, separating lithium and magnesium; pumping the nanobubble liquid obtained in the last step into a nanobubble separator, and making the nanobubbles rise with the liquid in a cylinder; due to the quantum characteristics of the nanobubbles, chemical reactions and ion exchanges occur in the contact process, the heavier magnesium rises with the nanobubbles, and the lighter lithium remains in the liquid phase, and then the lithium ions are collected by a lithium ion collecting unit. The process flow of the application is as follows: first, nanobubble liquid is prepared by the nanobubble generator, the nanobubbles rise with the liquid in the cylinder, the heavier magnesium rises with the nanobubbles, and the lighter lithium remains in the liquid phase, and then the lithium ions are collected by the lithium ion collecting unit, so that the separation of lithium and magnesium in the salt lake brine is realized.