Study On Synergistic Water Treatment Technology Of The Rare-Earth Permanent Magnetic Material And Environmental Friendly Polymer

The polyaspartic acid is synthesized by means of pyrocondensation polymerization, using aspartic acid as a monomer. The influence of react time and react temperature on the average molecular weights and yield and its biodegradability are studied; the kinetic parameters of the polymerization mechanism of aspartic acid were obtained; the relationship of the scale inhibition effect of polyaspartate, the average molecular weights, water temperature, dosage and time has been discussed. The results show that PASP has the best effect which its produce condition is at 240℃,4h.Second, synergistic inhibition effect of PASP and magnetic water under water temperature, intensity of magnetic field, water quality and dosage is discussed. At the same time, by using SEM, different crystal forms of scale crystals are characterized, these crystals are grown from tap water and model water both with and without a magnetic field, and the scale inhibition mechanism of PASP and magnetic water with medicine are discussed. The results show that there are good synergistic inhibition effect between PASP and magnetic water.In addition, the experiment of corrosion inhibition shows that:PASP has good corrosion inhibition effect. When the dosage of PASP is 5mg/L, the rate of corrosion inhibition is more than 90%, When the dosage of PASP is 30mg/L, the rate of corrosion inhibition is 98.10%.DRDT experiment shows that PASP has good scale inhibition effect under the condition of water quality of experiment, magnetic water with medicine has better scale inhibition effect, itsrate of scale inhibition is more than 99.5% when its dosage is 9mg/L.