Open AccessStudy on the Stabilization of Chemical Stabilizers for the Treatment of Lead and Zinc Smelting Sludge from Sulfuric Acid Sewage
Author(s) -
Zhang Hua
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/508/1/012005
Subject(s) - arsenic , selenium , zinc smelting , zinc , leaching (pedology) , chemistry , lead smelting , sulfuric acid , stabilizer (aeronautics) , smelting , adsorption , environmental chemistry , waste management , environmental science , inorganic chemistry , soil water , mechanical engineering , organic chemistry , soil science , engineering
Using the adsorption and precipitation effects of the stabilizers on arsenic and selenium, the experimental study on the stabilization of lead and zinc smelting sludge was carried out, and the influencing factors of the stabilizers were discussed to determine the feasibility and optimal test parameters of the experiment. The results show that the stabilizers can effectively reduce the leaching concentration of arsenic and selenium in lead and zinc sludge, and the stabilization effect is significantly improved compared with the control. When the amount of the stabilizer K is 5%, the stabilizing effect of arsenic and selenium is increased to 90% and 55%, and the leaching concentration of arsenic and selenium is lower than the national standard (GB5085.3-2007). It shows that the material is very effective in stabilizing lead and zinc mixed sludge.