Open AccessStudy on Sludge Characteristics of Lead and Zinc Smelting Acid and Sewage
Author(s) -
Hua Zhang
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 - 10.1088/1755-1315/508/1/012004
Subject(s) - leaching (pedology) , lead smelting , zinc , arsenic , sewage sludge , zinc smelting , chemistry , environmental chemistry , dissolution , smelting , selenium , sewage , metallurgy , environmental science , environmental engineering , materials science , soil water , organic chemistry , soil science
Taking the lead and zinc smelting acid and sewage as the research object, the indicators of sludge moisture content, leaching concentration, corrosivity, phase, chemical composition, soluble salt dissolution rate were tested. The lead and zinc smelting acid and sewage was dried to different temperature, then the leaching toxicity and corrosivity of the original samples were measured, and the arsenic and selenium of the sludge was analyzed by the effects of leaching toxicity and corrosivity at different temperatures. The conclusions show that when lead and zinc sludge were mixed, with the temperature of 160 °C, the leaching concentrations of arsenic and selenium are lower than the leaching toxicity standard, and the pH value is between 2.5-12.5, which is lower than the corrosive standard.