Open AccessHeavy metal pollution comprehensive evaluation of contaminated soil in lead-zinc mining area based on the fuzzy mathematics
Author(s) -
Fang Zengqiang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/300/3/032114
Subject(s) - pollution , leaching (pedology) , zinc , heavy metals , environmental science , contamination , environmental chemistry , soil contamination , fuzzy mathematics , metal , soil water , environmental engineering , fuzzy logic , chemistry , soil science , fuzzy set , fuzzy number , computer science , ecology , artificial intelligence , biology , organic chemistry
A new comprehensive evaluation method of heavy metal pollution based on the fuzzy mathematics was constructed. The results showed that mean concentrations of the heavy metals in the contaminated soils decreased in the order of Zn > Pb > Cd>Cu > As>Ni>Cr. Leaching experiment results showed that concentration of heavy metal in leaching agent of soil is not proportional to the content of heavy metal in soil. Through fuzzy comprehensive evaluation, the solid soil environmental quality grade was heavy pollution and leaching liquid water quality standards was grade V.