Landfill Leachate Toxicity to Oncorhynchus mykiss (Rainbow Trout) at the Merrick Landfill


Autoria(s): Evans, Andrew
Contribuinte(s)

Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))

Data(s)

01/07/2016

04/07/2016

04/07/2016

04/07/2016

Resumo

At the Merrick Landfill, located outside of North Bay (Ontario, CA), an investigation into the potential for an environmental impact to the Little Sturgeon River as a result of landfill leachate discharge was undertaken using toxicity testing using 96 hour acute lethality on Oncorhynchus mykiss (Rainbow Trout). Landfill leachate may present a risk to receiving environments as it is comprised of an array of chemicals including organics, ammonia, and metals. Testing was conducted in three phases, firstly testing was completed on site throughout an existing natural attenuation zone where the presence of several groundwater seeps down gradient of the site had been identified to determine the effectiveness of the existing leachate control features at reducing the environmental risks. These tests indicated that the existing capture strategies were largely effective at reducing toxicity risks to the receiving environment. Testing was also completed on two pilot-scale hybrid-passive treatment systems to determine their effectiveness for leachate treatment. Summer performance of a constructed gravel wetland system was also shown to be effective at reducing the toxicity of the landfill leachate at the site. Lastly in order to support evaluation of leachate treatment requirements, a toxicity identification evaluation (TIE) was performed to determine the principle cause of toxicity within the leachate. Based on water chemistry analyses of samples collected at various locations at the site, the TIE identified ammonia toxicity as the primary source of toxicity in the leachate, with a secondary focus on metal toxicity.

Thesis (Master, Civil Engineering) -- Queen's University, 2016-07-01 22:39:50.139

Identificador

http://hdl.handle.net/1974/14628

Idioma(s)

en

en

Relação

Canadian theses

Direitos

Queen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canada

ProQuest PhD and Master's Theses International Dissemination Agreement

Intellectual Property Guidelines at Queen's University

Copying and Preserving Your Thesis

Creative Commons - Attribution - CC BY

This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.

Palavras-Chave #O. mykiss #Leachate Treatment #Toxicity #Landfill Leachate
Tipo

Thesis