Wastewater treatment is the process of removing organic and inorganic contaminants from wastewater and household sewage, both effluents and domestic. It includes physical, chemical and biological processes, to remove the different types of contaminants.
Its objective is to produce a treated effluent from which are removed all the particles, sediment and organic materials.
In a wastewater treatment plant there are usually two specific lines dedicated to the water and to the sludge treatment.
THE WATER TREATMENT LINE is usually composed by the following stages:
The sludges accumulated in the wastewater treatment process are treated in THE SLUDGE TREATMENT LINE in a safe and effective manner.
The purpose of digestion is to reduce the amount of organic matter and the number of disease-causing microorganisms present in the solids. The most common treatment options include:
As far as all wastewater treatment processes are concerned, Motovario is the supplier in the aeration process for the drives unit of the surface aerators which are present in the water treatment basins. The machine’s floatation is ensured by two floaters that are anchored by ropes to four pillars to provide stability.
With this type of machines there aren’t dead zone at the bottom of the tank where fluid wouldn’t receive the oxygen necessary to maintain the concentration in the fixed range. Only a little part of these brushes is immersed in the water, because it is necessary to optimize the ratio aeration / installed power. Increasing the length immersed in the fluid, the water aeration increases but also the absorbed power increases.
In this type of machine are used helical bevel gear reducers characterized by the following features:
The helical bevel gear reducers also ensure: