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Sewage Treatment & Disposal Systems

Drip Irrigation

We are one of only a few in the state of Ohio that are licensed to install and service this type of system. We currently have over 110 high quality installations completed in central Ohio.

These systems are pressurized to ensure an even distribution of wastewater into the soil. They utilize small diameter tubing with pressure compensating emitters to apply wastewater uniformly over an infiltration system.

Drip distribution works on the principle of timed micro-dosing to maintain aerobic conditions in the soil. Timed micro-dosing applies effluent to the soil at specific intervals throughout a 24 hour period which allows for improved wastewater treatment. This pattern of application requires sufficient system storage to allow for occasional peak flows when water usage is heavy.

Health Department regulations require these systems to be specially engineered and have strict specifications on their designs. When properly sited, designed, installed, and maintained; drip systems can help overcome the typical problems associated with uneven wastewater distribution which often results in the surfacing of wastewater within the area over the distribution field, as well as sewage odors and other nuisance conditions.

Sand Filter Bed

Household sewage systems utilizing a subsurface filter bed have been installed in different Counties for decades. For many years, these systems utilized gravel as the medium through which the sewage is filtered. Unfortunately, these older systems did not function well and did not have the ability to properly filter sewage prior to discharging the effluent to the environment. Modern filter bed systems now utilize state-approved filter sand as the filtration medium. The sand has a filtration capability that is far superior to that of gravel.

Likewise, most modern filter bed systems installed in the last twenty years utilize two individual beds separated by an earthen barrier. These systems use a "splitter box", also known as a flow diversion box, that contains a diversion device which directs the flow of wastewater either side of the filter bed. This allows one part of the bed to rest, while the other is in use. This alternating usage method helps extend the life expectancy of your filter bed system. The flow diverter should be switched to alternate flow once a year. If you do not know where your flow diversion box is located, contact your sewage system pumping engineer or the Board of Health.

Aerobic

Aerobic systems require special care and maintenance. The motor that provides aeration to the system must operate continuously. If it does not, the oxygen level required by the microorganisms which thrive in the aeration unit will not be sufficient and they will begin to die. These "sewage bugs" help to break down the organic matter in the wastewater and biologically convert it to stable substances in the form of liquids and gases. The aeration and mixing of the wastewater insures that it comes in contact with the microorganisms so thorough treatment can occur. Loss of suitable aeration will result in little or no sewage treatment taking place within the aeration unit.

Several aerobic system designs also incorporate the use of filters to provide necessary treatment. They need to be checked and cleaned regularly. Aerobic systems also have mechanical components that will need to be checked and serviced regularly. Since some of the additional care and maintenance required with these systems is beyond the expertise of the average homeowner, various companies have been certified by the original manufacturers to offer extended service contracts. These normally cover motors and other components which require maintenance.

Mound

Another relatively modern sewage system which is currently being installed is a mound system. This design utilizes a soil absorption system constructed above grade. Sand fill is used to enhance treatment of the wastewater prior to entering the natural soil at the site. Sites that may be unsuitable for a conventional leaching system may be suitable for a mound system.

The mound system was originally developed in the early 1970's in the State of Wisconsin. The system has been widely accepted across the United States, especially in areas with slowly permeable soils, shallow bedrock, or high seasonal water tables.

Leaching Tile Fields

The typical household sewage system installed throughout the country for decades has utilized a septic tank and a leaching tile field. By design, the sewage flows from the tank to the leaching area where it drains from clay tile or perforated pipes laid in gravel trenches. The wastewater then enters the soil where it must be properly filtered, distributed, and absorbed so that it does not pose a contamination threat to groundwater.

Leaching systems can function well in areas with well drained soils. Unfortunately, much of the remaining areas being built on consists of poorly drained clay soils. These soils are often compacted and have very little absorption capacity. The soil permeability - the rate at which water percolates into the soil - is very slow. Poorly drained soils are typically saturated with water during wet weather and stay wet for long periods of time after a heavy rain. Since much of the space between the soil particles is already filled with water, the effluent leaving the sewage system is forced to rise and collect on the surface of the ground causing foul-smelling and swampy conditions. Leaching fields installed in these soils can only function properly during periods of dry weather. Some local areas are also effected by very shallow bedrock. The thin layer of soil which covers the bedrock is insufficient in depth to support a leaching system.