Measuring the sludge blanket before you order polymer
An assumed 1.2 m blanket turned out to be 0.4 m and left four tonnes of polymer idle. Three measurement methods and how to turn depth into a real order.
Emergency response when the lagoon nears freeboard
Three hundred millimetres below freeboard and 60 mm of rain coming. The first four hours, emergency dose targets and the notification thresholds to write down now.
Lagoon turnover after an algal bloom: what it does to your mix
Algal bloom turnover releases sulphide, biomass and a pH swing into your leachate. Why the first batch fails and how to dose through a turnover week.
Your Sample Came From the Top 300 mm: Stratified Lagoon Sampling Error
A lagoon sample from the top 300 mm can read a third of the true strength. Depth-integrated sampling, drawdown effects, and what to write on the label.
