Ecotoxicological evaluation of electrochemical oxidation for the treatment of sanitary landfill leachates

authors	Fernandes, A; Pastorinho, MR; Sousa, AC; Silva, W; Silva, R; Nunes, MJ; Rodrigues, AS; Pacheco, MJ; Ciriaco, L; Lopes, A
nationality	International
journal	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
author keywords	Sanitary landfill leachate; Electrochemical oxidation; Boron-doped diamond anode; Daphnia magna; Acute toxicity
keywords	WASTE-WATER TREATMENT; ANODIC-OXIDATION; BIODEGRADABILITY; TOXICITY; POLLUTANTS; BIOASSAYS; REMOVAL; OXIDE
abstract	In this study, the efficiency of electrochemical oxidation to treat a sanitary landfill leachate was evaluated by the reduction in physico-chemical parameters and in ecotoxicity. The acute toxicity of the sanitary landfill leachates, before and after treatment, was assessed with the model organism Daphnia magna. Electrochemical oxidation treatment was effective in the removal of organic load and ammonium nitrogen and in the reduction of metal ions concentrations. Furthermore, a reduction of 2.5-fold in the acute toxicity towards D. magna after 36h of treatment was noticed. Nevertheless, the toxicity of the treated leachate is still very high, and further treatments are necessary in order to obtain a non-toxic effluent to this aquatic organism. Toxicity results were also compared with others described in the literature for different leachate treatments and test organisms.
publisher	SPRINGER HEIDELBERG
issn	0944-1344
isbn	1614-7499
year published	2019
volume	26
issue	1
beginning page	24
ending page	33
digital object identifier (doi)	10.1007/s11356-018-2650-6
web of science category	Environmental Sciences
subject category	Environmental Sciences & Ecology
unique article identifier	WOS:000454939400004