Acute biotoxicity assessment of heavy metals in sewage sludge based on the glucose consumption of Escherichia coli.

ABSTRACT: As a simple and feasible method for acute biotoxicity assessment, personal glucose meter (PGM) can be successfully applied in the early warning of environmental pollutants in sewage. In this paper, the acute biotoxicity of single and joint heavy metals in sewage and real sludge samples was systematically described based on the glucose metabolism of Escherichia coli (E. coli). Results indicated that the biotoxicity order of five single heavy metals in sewage was Hg²⁺ > As³⁺ > Cu²⁺ > Zn²⁺ > Cd²⁺. The joint heavy metals of Cu²⁺ + Zn²⁺, Cu²⁺ + Cd²⁺, and Cu²⁺ + Hg²⁺ produced synergistic effects, while Cu²⁺ + As³⁺ and Cd²⁺ + Zn

SUBMITTER: Mi Y 

PROVIDER: S-EPMC6366162 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature