Monitoring Strategies for Australian Pit Lakes and Connected Waters

Monitoring Strategies for Australian Pit Lakes and Connected Waters

Clint McCullough (MiWER), Mark Lund (MiWER), Lu Zhao (MiWER)     Conceptual modelling to better understand ecological risks posed by pit lakes   Strategic management of pit lakes as a regional resource and/or liability requires a data collection programme to advise management processes such as environmental and human health and safety. Development of a monitoring and management strategy for pit lakes and connected waters would be made through a review of the various international best practice guidelines. This study has begun with a literature review of pit lake water quality monitoring strategies. In particular, parameters identified from reviewing existing pit lake…

Biological remediation of acid mine waters in a sewage evaporation pond

Biological remediation of acid mine waters in a sewage evaporation pond

Clint McCullough (MiWER), Mark Lund (MiWER), Joel May (Xstrata Coal Pty Ltd) Is a mining operations sewage evaporation pond able to biologically remediate acid pit dewatering water? Workshop Evaporation Pond 2 (WEP2) is a water body used to reduce low pH and/or high salinity surface water volumes through evaporation. Approximately 4 ML of acid dewatering water from WEP2 was introduced into the 60 ML Workshop Evaporation Pond 1 (WEP1) in late May 2003. WEP1 is a hyper-eutrophic water body into which raw sewage and CCP workshop vehicle washdown and waste waters are continuously fed. In situ sulfate reduction processes produced alkalinity and removed heavy…