As implied, dewatering in wastewater treatment is the removal of water from domestic sludge. Basically, the septic system is a small-scale treatment facility that uses bacteria to decompose the waste material collected in the collection tank. The relatively harmless effluent produced after this process is released into drain fields. Unfortunately, the septic system can collect a lot of grey water from the bathroom, kitchen sinks and laundry machines.

This type of waste liquid is not exactly hazardous, but it increases the volume of the material in the septic tank. This means that the dangerous faecal material is not decomposed efficiently since the bacteria must handle large waste volumes. The process of dewatering is designed to create solid materials that are easier to decompose and cheaper to dispose of. Here are the main aspects that you must consider before a septic dewatering project.

Depth and Flow

The depth and the flow of water in relation to your septic system are important factors to evaluate during a dewatering project. Basically, these aspects will affect and determine the cost of the service and the frequency of performing the task. The depth of the wastewater will depend on the configuration and size of the tank. If you have a small tank, the amount of liquid collected will be little, and the dewatering costs will be low. On the other hand, the task must be carried out with more frequency than in a larger tank. You can reduce the volume of wastewater and subsequent costs by limiting the amount of grey water released into the tank.

Dewatering Equipment

You should inquire about the dewatering machines used in wastewater treatment when engaging a contractor. The selected technique will affect the efficacy of the water removal process. The most effective equipment is the rotary vacuum, which suctions the sludge through filters. Unfortunately, the process takes longer, so the project expenses will be higher. Centrifuges and belt presses are less thorough but more popular. The former machine spins slurry, causing settlement of solids, while the latter wrings out the moisture, so the dewatering processes will be faster.

Weather Conditions

The weather conditions in your local area must be considered prior to the dewatering project. In ideal circumstances, you should engage a dewatering company with the aforementioned mechanical dewatering equipment. However, you can also utilise a simple drying bed made using sand and gravel. Basically, this involves applying the sludge to the bed and allowing it to dry naturally. This is a cheap method, but it might take long if it is cloudy or rainy.

For more information, contact a local dewatering company like Precision Drainage

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