In addition to our numerous industrial waste management services, we also offer a wide variety of domestic waste services to manage and dispose of waste in areas such as domestic cesspools and septic tanks.
Domestic Septic Tanks
This method of partial sewage treatment has been used for hundreds of years. In the last fifty years, legislation has dictated its sizing, condition of treatment and the permission to discharge the liquids.
The vessels are usually two chambers with a dividing wall to allow solids and liquids to separate. They are usually manufactured from concrete rings, brick, glass reinforced plastic or polyethylene. All waste from the building is generally discharged by gravity into the first chamber, this allows solids to either sink or float and then any liquid will discharge through the second chamber.
The final liquids then discharge to either a soakaway, filter-bed or herringbone land drain.
Consent to discharge
Just like any other system that requires discharge, you need to obtain permission from the Environment Agency to discharge liquids into the ground, watercourse, etc.
With regards to septic tanks, the Environment Agency will only grant this 'consent to discharge' if you can prove that the ground conditions are satisfactory to allow liquids to soak away. In order to determine that the area is suitable you will need carry out a porosity test.
A cesspool is a sealed vessel with an inlet to allow waste in. Also known as a cesspit, once this vessel is filled the tank will require emptying. Domestic cesspools were usually used when a septic tank was not suitable for the location. This could be because the ground conditions are poor. Cesspools have been used for years and have been constructed using numerous different materials: concrete, brick GRP, metal and in some cases even wood was used!
Waste from a cesspool is usually not treated; as such the Environment Agency is very strict with what type of system is actually used. Additionally you need to obtain permission from the Environment Agency before a cesspool installation can take place.
For domestic dwellings, the smallest cesspools are 18000L. For a family of four this size of cesspool would approximately allow for 20 days of storage before needing to be emptied.
Sewage Treatment Plants
If you cannot get the necessary permissions from the Environment Agency to install a septic tank and an installation of a cesspool would be too expensive, there is another option. You could use a sewage treatment plant. This option is designed to separate solids from liquids, and then treat the liquids so that the quality of the final effluent is acceptable to discharge into a free flowing watercourse, ditch or soakaway.
A sewage treatment plant is usually a one piece vessel that has three main functions. First there is the primary settlement tank, secondly there is a biozone chamber and finally there is a humus chamber.
The Primary Settlement Tank
in a manner similar to a septic tank, this primary settlement tank allows solids and liquids to separate; allowing the liquids to discharge into the biozone chamber.
If an existing septic tank can be used, a treatment module (a biozone and humus tank) can be installed alongside the tank to reduce installation costs.
The Biozone Chamber
This chamber is a great place for good bacteria to live and populate. It is packed to with lots of surface area for thegood bacteria to stick to and grow. The chamber is filled with settled liquids and the good bacteria (known as biomass) will digest all of the organic matter, thus purifying the waste to a high quality effluent.
This biomass requires two key things to survive, air and food. To make sure that the biomass has access to both air and food, three approaches are usually taken.
- One method of achieving both food and air for the biomass is to submerge the biomass within the liquids and aerate it using pumps.
- Another method is to pump the liquids up and over the media that the biomass is attached to using pumps and compressors.
- Or you could rotate discs that are half submerged in effluent (for food) and have them up in the air, providing oxygen. This technique is known as a rotating biological contractor (RBCs).
The chamber accepts the treated effluent, however before the final discharge can take place you must allow for any final suspended solids to be settled out. This chamber is a very still chamber and has sloping walls that allow the solids to slide down to the bottom of the chamber.
Consent To Discharge
Similar to a septic tank, you need consent from the Environment Agency. The Environment Agencyis the only governing body that can grant this 'consent to discharge'. These applications usually take up to three months to be approved and you should neverinstall a sewage treatment plant before the permission has been granted. In fact, in some circumstances, the Environment Agency could force you to remove the tank if consent to discharge has not been granted.
Domestic Waste Services From BKP Waste & Recycling Ltd
BKP Waste & Recycling Ltd can provide professional domestic waste services to manage and dispose of domestic and household waste.
Over our numerous years of experience, we have obtained various accreditations.
We have obtained various accreditations from the International Organisation for Standardisation, which are:
- An ISO 9001:2008 in Quality.
- An ISO 14001:2004 Environmental.
We have also obtained an accreditation from the British Standards Institution.
- A BS OHSAS 18001:2007 in Health and Safety.
If you would like to read more information regarding our accreditations, you can do so by visiting the policies, insurance and professional certification page, by clicking on “BKP Information" at the top of this page. Additionally by visiting this page you can find various pieces of information such as our health and safety policy, our environmental policy and our waste carrier certificate.
If you are curious about which of our numerous domestic waste services are best suited to your needs, please do not hesitate to contact our friendly and dedicated team of professionals and enquire about our household and domestic waste services. Our team will be able to provide you with additional information and answer any questions you might have regarding the numerous waste services available from BKP Waste & Recycling Ltd.
Interested In Domestic And Household Waste Services? Contact Our Team Today!
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