Types of erosion. Soil erosion is a widespread problem in rural and urban Queensland. If we want to save our soils, we need to understand the different types of erosion that can occur. Water erosion. Queenslandâs high intensity summer rainfalls represent a significant risk of erosion by water.
What is a Lagoon? Lagoons are shallow coastal bodies of water separated from the ocean by a series of barrier islands which lie parallel to the shoreline. Inlets, either natural or man-made, cut through barrier islands and permit tidal currents to transport water into and out of the lagoons.
They are lined with clay or a synthetic liner to prevent leakage into the soil and ultimately groundwater or other water sources. Lagoon systems use biological, physical, and chemical processes to treat the wastewater during its storage period before dispersal onto crops, pasture ground or other types of land.Most of the treatment occurs naturally by anaerobic or aerobic bacteria, depending on the design of the lagoon system.ver a 20 to 50 day period wastewater solids separate into layers, with oils and floating materials on top and heavy sludge on the bottom. The top layer seals oxygen out of the lagoon system, providing the anaerobic conditions for bacteria to treat the wastewater.