Water pollutant adsorption resin and preparation method thereof

Abstract

The invention relates to a water pollutant adsorption resin which comprises the components (based on the weight percentage): 15-18wt% of water soluble thiacalixarene and 82-85wt% of anion resin. A preparation method of the water pollutant adsorption resin comprises: 1. the 82-85wt% of anion resin is weighed to be taken, washed by de-ionized water for three times, soaked in 5wt% of HCl solution for 3h, soaked in 5wt% of NaOH solution for 3h, rinsed by the de-ionized water until the water is neutral and then dried at 50 DEG C for standby application; 2. the 15-18wt% of water soluble thiacalixarene is weighed to be taken, dissolved in 200ml of de-ionized water and processed by ultrasonic oscillation for 1h, so that water soluble thiacalixarene solution can be obtained; 3. the dried anion resin is added into the water soluble thiacalixarene solution to be stirred at the constant temperature of 25 DEG C for 24h, and then the mixed solution is filtered, separated and rinsed by clear water to be neutral, and then is dried at 50 DEG C, so that the water pollutant adsorption resin is obtained. The water pollutant adsorption resin not only can simultaneously absorb and remove the heavy metal and the organic contaminant in the water, but also can realize absorption and removal for low concentration heavy metal under the condition of interference of high background alkali metals and alkaline-earth metals.

Description

Technical field: [0001] The invention relates to the field of treatment of polluted water bodies, in particular to an adsorption resin for adsorbing and removing water body pollutants and a preparation method thereof. Background technique: [0002] At present, most of the drinking water source water in our country is in a state of slight pollution, becoming slightly polluted source water. Slightly polluted source water usually has the following characteristics: 1. Pollutants are mainly organic matter and heavy metals. Prioritize the control of teratogenic "three causes" effects Toxic organic pollutants are very harmful to human health, and it is difficult to remove them by conventional water purification processes in water plants; And the dosage of disinfectant will corrode the pipe wall and reduce the service life of the pipe network. At the same time, the by-products formed by disinfection are very harmful to human health; 3. The concentration of heavy metals is low (0-10...

AI Technical Summary

Problems solved by technology

However, these commonly used adsorbents have many shortcomings and cannot effectively remove heavy metals and organic complex pollutants in slightly polluted water.

For example, activated carbon has poor adsorption performance on macromolecules and too small organic molecules, especially for most polar short-chain oxygen-containing organic compounds, such as methanol, ethanol, formaldehyde, acetone and formic acid, etc., and these substances are all Precursors of carcinogen trihalomethanes; ion exchange resins are interfered by high background alkali metals and alkaline earth metals, are not suitable for the removal of low concentrations of heavy metals in water, and their adsorption effect on organic matter is limited; although macroporous adsorption resins are effective for organic wastewater The treatment effect is good, but because it does not contain ion exchange groups, the adsorption effect on heavy metals in water is not ideal