Sep 12, 2014
Cation exchange resins are primarily used in water treatment systems to remove cations from natural water. Because cation exchange resins are located relatively early in the treatment system, they are...
Sep 12, 2014
Excessive coagulant can cause cation exchange resin fouling. To address suspended solids in water, coagulants are typically added during pretreatment. However, improper coagulant dosage can foul the d...
Sep 12, 2014
Water Quality—Oetermination of pH Value—Glass Electrode Method1. Scope of Application1.1 This method is applicable to the determination of pH values in drinking water, surface water, and industrial ...
Sep 12, 2014
I. IntroductionSince the 1970s, our institute has successfully treated radioactive wastewater using two processes: "four electrodialysis units" and "electrodialysis unit-packed bed elec...
Sep 12, 2014
Standard solution(mass of solute, mol/kg⁻¹)pH at 25℃Required drug weight per 1000ml 25℃ aqueous solutionBasic StandardsPotassium hydrogen tartrate (saturated at 25℃)0.05m potassium dihydrogen pho...
Sep 12, 2014
T/CABCDE05101520253035384045505560708090953.5573.5523.5483.5483.5473.5473.5423.5543.5603.5803.6093.6503.6744.0033.9993.9983.9994.0024.0084.0154.0244.0304.0354.0474.0604.0754.0914.1264.1644.2054.2276.9...
Sep 12, 2014
5 instruments5.1 Acidometer or ion concentration meter. Instruments used for routine testing should be accurate to at least 0.1 pH unit, with a pH range from 0 to 14. If there are special needs, instr...
Sep 12, 2014
Water quality－Determination of suspended substance Gravimetric method1. Subject Matter and ScopeThis standard specifies the determination of suspended solids in water.This standard applies to surface wate...
Sep 12, 2014
Cause analysis and treatmentIn order to accurately find the reasons, we conducted a full analysis of Fe3+ according to the process shown in Figure 1, and initially determined the following reasons:Ina...
Sep 12, 2014
1. Subject Matter and Scope1.1 This standard specifies a potentiometric titration method for the determination of anionic detergents in polluted water.This standard uses sodium linear alkylbenzene sul...
