WASTEWATER TREATMENT

Desludging

In Ireland, approximately half a million homes are using wastewater systems (either septic tanks or packaged systems) to treat the wastewater.
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Desludging septic tanks and wastewater treatment plants

Overview

The Environmental Protection Agency (EPA) is an independent public body and is responsible for supervising Local Authorities (LA) when they inspect wastewater systems. It is done to ensure that the systems are suitable and well maintained. Indeed, a quarter of wastewater systems inspected failed the LAs inspection due to poor operation and poor maintenance. More details from the EPA website.

desludging

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Does your septic tank or wastewater treatment plant need desludging? How to check?

By law, homeowners must ensure that their wastewater treatment solution is installed, operated and maintained to make sure it doesn’t pose a risk to human health and the environment.

Regularly maintenance and desludging are therefore essential to maintaining a wastewater system running smoothly.    

Sludge level in the tank. As the sludge or build up of solids occur the space in the septic tank or wastewater treatment system to treat the effluent is reduced. As the level of sludge increases, the efficiency of the system decreases. A system that is never desludged is at risk of failure and causing problems.  

When to desludge? When the mud reaches 50% of the total volume of the tank. To check the volume of mud in your tank we strongly recommend to contact a technician.

How to check the sludge level Tricel Novo wastewater treatment plant? When the mud reaches 50% of the total volume of the tank. To check the volume of mud in your tank we strongly recommend to contact a technician.

How to desludge a tank ?

Remove both access covers. 

Remove the filter.

Empty the Tricel Vento septic tank using a vacuum tanker. Care must be taken not to damage the tank with the hose of the vacuum tanker.

Ensure that all the solids are removed from the tank.

Replace the de-sludging access cover securely.

Only competent approved personnel should carry out de-sludging.

The access cover should never be left off while the unit is unattended.

De-sludging should never be carried out alone.

The property owner has a legal responsibility to ensure that the system does not cause pollution, a health hazard or nuisance.

What are the steps to disludge a plant?

Remove the desludging access covers.

 Empty the Tricel Novo using the vacuum tanker. Ensure the solids get removed with the liquid.

Care must be taken not to damage the Tricel Novo with the hose of the vacuum tanker.

Replace the desludging access cover securely. 

Only competent approved personnel should carry out de-sludging.

There is the potential danger of falling into the tank during desludging when manholes may be open – take all necessary safety precautions when desludging.

The access cover should never be left off an unattended Tricel Novo.

De-sludging should never be carried out alone.

The desludging of the Tricel Novo is the responsibility of the homeowner.

How often should you desludge a septic tank or wastewater treatment plant?

In both septic tanks and wastewater treatment plants, a build-up of all solids occurs. This is called “sludge”. Both septic tanks and wastewater treatment plants do require desludging or emptying. The frequency of which varies depending on the system in place and the usage. The general recommendation is every 1 to 5 years. We advise checking the manufacturer’s recommendations and manuals.

Tricel Vento septic tank desludging frequency

For Tricel Vento septic tank, desludging should be carried out yearly to prevent solids rising to the height of the outlet pipe and being carried along with the liquid into the percolation trenches. This blocks the percolation area and can cause flooding. Depending on usage and house population, this period may vary. The minimum recommended desludging period is 1 year for all tank sizes.

When the sludge is occupying 50% of the volume of the primary chamber desludging is required, this is when the sludge is 700mm deep. For desludging periods, which depends on the occupancy of the dwelling, please refer to the table below

Tricel Novo wastewater treatment plant desludging frequency. For Tricel Novo wastewater treatment place, depending on usage desludging might be necessary every 1-3  years. The Tricel Novo will require a full service every year to guarantee the efficiency of the plant. 

Further information about desludging:

Further information about desludging:

Keep records of your septic desludging or wastewater treatment plant.

We recommend that you keep a log along with the receipts from the licenced company. This might come handy to prove that your system has been regularly maintained, in the following situations:

  • Inspection from the EPA.
  • If you decide to sell your house.
  • Moreover, it is required by law to keep records of sludge removal and maintenance for five years.

Desludging should be done by licensed waste collection companies. Only registered and licensed waste collection companies should be used to desludge your septic tank or wastewater treatment plant. They are insured as well as trained to safely & efficiently handle and dispose of the sludge. They make sure the sludge doesn’t pose any health hazard to the public or cause pollution to the environment.

To find details of a licenced desludging company near you, research online or contact your local authority for a list of contractors. There is the potential danger of falling into the tank during desludging when manholes may be open – take all necessary safety precautions when desludging.

Farmers with their own land, you can spread their own sludge but only in accordance with the Waste Management (Use of Sewage Sludge in Agriculture) Regulations.

The cost of desludging. Only competent approved personnel should carry out de-sludging.

Desludging costs vary between counties and suppliers, as a rule of thumb the costs are situated between 200€ and 400€. Make sure to get a waste disposal certificate from wastewater disposal company.

Where does the sludge go? Permitted contractors bring the sludge to authorised facilities for treatment, details of which are available from your local authority.

Why choose Tricel and their service partners

Fast delivery

Fast delivery and rapid response to all of our customers. Average response time of 12 minutes on weekdays.

Partner network

Combined knowledge of service partner network throughout Europe

Technical expertise

Unrivalled technical expertise in the installion, commissioning and maintenance of WWT solutions

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Tricel (Killarney) Unlimited Company
Ballyspillane Industrial Estate, Killarney, Co. Kerry, V93 X253, Ireland
Tel: 00 353 (0)64 663 2421