Characters of flower plants for lead enrichment from sewage sludge

Abstract

Abstract: Heavy metals can be accumulated in soil due to the application of sewage sludge on land over years.It will cause environmental safety problems if heavy metals accumulated in soil.Eight species of garden plants were planted in the substrate mixed by sewage sludge and beach soil to study how lead was enriched and transferred in plant-soil system.The results showed that the enrichment ability of plants was different,among which chrysanthemum was the most effective in lead enrichrnent.Lead absorbed by plants was not equally distributed in different parts of the plants,and the root absorbed more than other organs.The enrichment ability of plants was related with the concentration and form of lead in soil.

Key words: Contaminated soil, Remediation standard, Methodology, Ecological risk assessment

CLC Number:

S153

MA Limin, CHEN Ling, MA Na, LIU Dongyan, ZHAO Jianfu. Characters of flower plants for lead enrichment from sewage sludge[J]. cje, 2005, (6): 644-647.

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