filtering field for the septic tank : the establishment and operation of

The principle of operation of filtration fields

After the initial cleaning fluid from helminths, grease and mechanical impurities, there is flow of wastewater through open channels in a system consisting of a specially arranged a drainage pipe, with the pre-seeping through a layer of sand.After that, the technical purpose well, ditch or river.

decomposition into components that are harmless to the environment occurs by means of bacteria.The presence of air provides the vital functions of these bacteria.

efficient operation of the treatment system is largely dependent on the groundwater component, which is used in filtration applications.You have to remember there is the possibility of using aerobic methods of cleaning the filtration and irrigation fields.

for guidance in designing filtration field for the septic tank is necessary to use the legislative framework set out in the relevant laws on sanitary standards, but do not forget for the local authorities, which have their own orders on this account.The basic requirement, which is to avoid falling into the water intake system of waste, due to the receipt of this water for drinking population.

• chamber septic tank (1);
• feed pipe (2);
• distribution ring (camera) (3);
• drainage pipes Filtering field (4).

cases in which the use of a drainage system with filtration fields for septic tanks is required:

• if the water table is at a level not exceeding 1.5 meter threshold is not affected when the soil type.
• if the filtration properties of underground filtration field in the soil are insufficient.

Drafting

order of placing of seepage fields

When calculating the filtration fields necessary to take into account a number of important aspects:

• when designing the filtration field, it is necessary to ensure that the layer of sand was laid deeper levels of soil freezing, otherwisecase, in frosty weather filtration fields partially, and perhaps completely lose their function;



• is important to filtration fields are at a maximum distance from the water intake sites, fruit-bearing shrubs and trees, in order to avoid further adverse effect of filtered substances on water and fruit.
• Repair work on cleaning, as a substitute for sand, gravel and soil used as a filtration layer must be conducted at least once every seven years.Since the drainage system ensures the normal operation for seven years at most.

How to calculate the length of the irrigation pipe

Consider for example the filtration field, used a septic tank, which is used in the production of concrete rings.
Initial parameters:

• depth of groundwater is 2 meters;
• Sandy soil
• two cubic meters per day - septic tank performance
  necessary to make calculations long irrigation pipe, which is necessary in these circumstances to use a septic tank.

Calculations:

• determining the soil type, depth of groundwater, it is necessary to know the average annual temperature.For each area, this value has a statistical nature, these problems should not arise.
• Using the table to determine the load that is created by one meter of pipeline, provided that the depth of the ground water is two meters, and the average annual temperature is set to 6 ºC, will be 20.
• Septic costs 2 cu.m of liquid, it is necessary to provide septic leach field with irrigation piping length of 100 m (1 cu. m is 1000 liters, 2000 liters divided by the load factor of 20)
• Considering coefficient dirt bedding in the range of 1.2 ... 1.5, hoping to loadpipe.

We conclude that irrigation pipe length under given conditions must be at 67 ... 84 m (100 divide by a factor of 1.2 ... 1.5).

filtering Fields

For the construction of the filtration field, a system that performs the function of irrigation, and consists of a collection of underground piping and ditches.To do this:

• ten centimeter layer of soil is placed on the bottom of the ditch, the soil should have good ability vlagopropuskayuschey.
• is followed by a layer of sand with a thickness of not less than ten centimeters.Further there is a laying of the drainage pipe (pipe with holes).Filtration Efficiency field is provided by a uniform distribution of the liquid waste.
  

  use of flexible pipes and pipelines is not acceptable, as they will be violated environmental management standards.Subsequently, it can bring no small number of problems and issues associated with organizations that monitor the proper use of natural resources.

• Each is equipped with a crushed stone gully area, the thickness of which must be at least 40 cm.
• using geotextile, making a layer of crushed stone between the formation and the subsequent layer of soil, which would also serve as a protective function against dirt and frost for drain piping.
• Then the whole area on which the filtering field for the septic tank, fill the earth.

General Advisory Council

Equipping cleaning system it must be remembered:

• Full bioremediation is provided, in case the filtration box is equipped on the sand, sandy loam or loamy soil.
• When equipment area on clay soil, drainage will not show efficiency in the power of the clay has poor vlagopropuskayuschey properties.
  From experience of similar works, it follows that the cost of the recess to peskonesuschego clay layer, exceed the costs for the installation of ready-made systems and wastewater treatment facilities.
• is often necessary to construct additional treatment systems, as used by the principle of self-cleaning of the soil is not limitless, and has a resource.
• purity from wastewater will depend on the life of the filtration field.

Summarizing, the material presented in this article will help you in a separate filtration equipment for septic fields.Avoid contamination of potable water sources and preserving the environment in your area.