Wednesday, February 6, 2013

All about Aerobic Septic Systems

Aerobic septic systems are becoming increasingly better option for people compared to the anaerobic septic system. The reason for this is the fact that the usual anaerobic septic systems are able to provide satisfactory treatment only under more than one condition. However, the contaminated waste water before being discharged into the natural environment should undergo some natural processes for a complete waste treatment needing considerably thick and free draining soil with the groundwater located much lower than the disposal lines. Failing to meet these conditions can lead to contamination of the septic soil and groundwater. By making use of aerobic system the contamination is removed much before the effluent is discharged expanding the conditions in which an on-site disposal of residential sewage can be very safely executed.

Aerobic septic systems need oxygen to amplify the quality of effluent treatment in the septic tank by encouraging aerobic bacteria and produce a much-improved quality of waste water effluent that is discharged into the absorption method for its final management and disposal.

Septic Effluent & Aerobic Treatment Unit
Aerobic treatment units (ATUs), also called 'septic tank aeration systems') for residential use. These pre-packaged septic treatment systems actually are mini-waste water treatment plant for home use. Aerobic treatment units usually do not, eliminate the need for a drain field, but can considerably lessen the drain field area and capacity required.

Aerobic Septic systems needs electrical power therefore is costlier to install and operate as compared to the usual gravity septic tank and drain field. However, aerobic septic system produces a very high quality treated effluent and is useful at the sites where the usual septic drain field may not work because of - shallow groundwater or bedrock, small lots, adverse ground slope, irregular sites, adverse soil types, and replacement systems.

Many times ATUs are helpful in restoring a septic system when the usual septic system fails or is beyond repair. Installing an aerobic septic treatment unit is also necessary for lots that have adjoining lakes and streams or are too small for installing a usual septic system.

Working of Aerobic Septic Treatment Units.
An aerobic treatment unit provides oxygen to help aerobic microorganisms which decompose the dissolved organic and nitrogen compounds into simple carbon dioxide and inorganic compounds.

The ATU's isolate solid waste first into the 'trash tank' and then additional solids are isolated in the clarifier or settlement tank from where they are again sent back to the main tank for more treatment. Typically, the organic materials found in residential waste water usually have urea, soaps, detergents, fats, proteins, and carbohydrates and all these compounds contain carbon, hydrogen, and oxygen. In addition, the household waste water consists of nitrogen, phosphorus, and sulfur in organic form.

In the biochemical degradation process, these three elements are biologically changed into their mineralized forms. Whereas, in case of an anaerobic process, the breakdown of the waste water would result in fermentation causing exothermic and enzymatic breakdown of soluble organic compounds without depending on the presence or absence of the dissolved oxygen producing methane and carbon dioxide that are both products of waste water fermentation.

About the author:

We are an Underground utility installation company that specializes in sewer lines, water lines, septic systems College Station and underground conduits for power.

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