The KEE Services Team are now on the road serving their valued customers with the addition of their new tanker.
If you require KEE Services for any off-mains drainage enquiries, please contact the team on : 01296 634500
or email: sales@keeprocess.com
KEE Tankering leaflet
Flooding and saturated ground cause significant problems for sewage treatment plants and as the UK receives more frequent severe rainfall events, the issue of pollution from sewage treatment plants and septic tanks is an ever increasing threat.
What is the effect of a sewage treatment plant flooding?
The effect of a sewage treatment plant flooding is not limited to contamination. Nearly all sewage treatment plants have some form of motor or compressor which is responsible for driving the treatment process. If these flood, then they will need to be replaced once the flood waters recede.
The most common Septic tank problem that arises due to flooding is that saturated ground cannot absorb any additional water and hence many sites with drainage fields suffer during prolonged periods of rain because the sewage system backs up.
To view Do’s and Don’ts to caring for your sewage treatment plant, click HERE.
Alternatively Contact KEE to discuss service contracts available or arrange a service engineer to repair/service your wastewater treatment system or evaluate potential problems before they happen.
Call: 01296 634500,
visit our website – www.keeservices.com
or email – service@keeservices.com
“ A maintenance strategy is necessary to ensure the smooth running of business operations. As well as giving a business better control over its asset and maintenance costs, a clear maintenance strategy helps to ensure statutory compliance and adherence to company policies. ”
Ian Short. KEE Services Business Development Manager.
An unplanned, reactive maintenance approach may lead to lower maintenance costs up front and less time spent on planning and performing maintenance in the short term, but that’s about where the benefits end. The cost of replacing failed components, equipment and emergency call out work at short notice and/or outside of normal operating hours costs much more when the situation arises. Therefore not proactively planning your maintenance tends to be more costly in the longer term and causes much more disruption to your business fixing the problem once it has occurred.
There are a number of key reasons a business should take the time to consider the maintenance needs of their Wastewater Treatment equipment:
Proactive maintenance keeps you one step ahead of your equipment needs. In the same way that you would take your car for regular servicing rather than waiting for it to break down and incurring a large repair bill, it’s strongly advisable to maintain your equipment on a systematic basis.
PPM involves setting a maintenance schedule based on either calendar time or asset hours. This should also take into account factors specific to your business usage such as the environment in which it is operated and any legal waste consent requirements applicable.
A maintenance strategy takes the business’s maintenance aims and translates them into actions to support the company’s obligations, requirements and intentions. The strategy should include the following elements:
PPM is usually carried out with the support of a certified partner specialising in asset maintenance such as ourselves. Using our experience, we can provide a better insight into the condition of your assets. As a result, you can adopt a proactive maintenance programme designed specifically for your business and equipment thereby reducing the need for reactive maintenance.
Reactive maintenance may sometimes still be required, but a PPM plan will reduce the likelihood of this happening and will assist you in managing the maintenance budget with fewer surprises. Additionally, if a reactive engineer call out is required, KEE can check when the next planned Service Visit is due at your site and, where appropriate, arrange for the engineer to complete the ‘PPM Service’ on the plant at the same time, therefore minimising call out charges and site visits costs.
PPM also gives much greater control over the impact maintenance has on business operations because you can schedule when you wish maintenance to be completed based on when it will cause minimum disruption. For example, you can arrange a maintenance visit for a specific day when employees are available to provide access etc. Seasonal requirements can also be taken into account to ensure your Wastewater Treatment equipment is serviced and in full working order when needed most.
Following a maintenance program and documenting all work carried out also supports your legal compliance and provides evidence thereof (should it be required) in the event of system failure leading to harm or environmental damage.
The overall process on site includes inlet works with a grit chamber and screen for municipal wastewater. After this preliminary treatment, the municipal wastewater stream is mixed with the Distillery effluent and is processed through the first-stage high-rate biofilter tower. The effluent from the biofilter tower is then processed through radial flow-scraped primary settlement tanks and the settled effluent is discharged into a two-stage activated sludge basin consisting of two tanks of 7.92m x 7.92m x 4.65m deep (water depth 3.65m). The mixed liquor from the activated sludge plant is discharged through to three radial flow-scraped final settlement tanks and the settled effluent is discharged to a watercourse. The settled sludge is returned (RAS) to the activated sludge basin with excess sent to sludge storage. Finally, supernatant from the sludge storage tank is returned to the feed for the high rate filter tower.
The aeration system for the activated sludge basin consists of two surface-mounted aerators driven by a 20kW common-geared motor through a propshaft delivering approximately 30kg/hour of dissolved oxygen.
EXISTING AERATION SYSTEM – ONLY ONE SURFACE AERATOR OPERATING
The total BOD load to the plant from municipal and industrial sources is 570 kg/day and approximately 285kg of this is reduced through the high rate biofilter and the remaining 285kg/day is required to be treated through the activated sludge plant. The aeration tank capacity is 230m3 each and is normally operated at MLSS concentration of approximately 2000mg/l. One of the surface aerators in the existing aeration system had failed and a temporary venturi aeration system was installed to assist in oxygen supply.
KEE were requested to visit the site, analyse the situation and evaluate the process requirements to make a proposal to upgrade the aeration system. The factors to be taken into account included the need to upgrade the aeration system whilst the plant continued to operate (without decommissioning the plant) and to ensure that the new aeration device produced less than 60dB noise. KEE evaluated the existing process parameters and concluded that the plant could be operated at a higher MLSS concentration of up to 4000 mg/l at a substrate loading rate of 0.15g BOD/g MLSS. The estimated dissolved oxygen demand on this basis would be approximately 33kg/hour.
KEE proposed to install four 5.6kW dual mode Triton processors to provide complete mixing of both the aeration basins and to supply up to 40kg/hour of dissolved oxygen. The Triton dual mode processor is an efficient aeration device which provides total (horizontal and vertical) mixing of the whole basin. It can be mounted from a wall or a bridge or can be supported from floats. The Triton can mix up to a depth of 10m and therefore is also ideal for upgrading existing aeration systems for total replacement or supplemental aeration. The Triton uses a low-power regenerative blower for air supply and a direct-coupled electric motor to generate a plume of fine bubble aeration which is able to penetrate through to the bottom of the tank. This air/water mixer provides a long retention period for air bubbles and the resulting high efficiency oxygen transfer into the mixed liquor. By EPA definition the Triton is a fine bubble aerator.
KEE TRITON® AERATION IN OPERATION
The four Tritons were mounted from the side walls of the existing tanks and, once all the installation work was completed over two days, the electrical cabling was finalised. The blowers supplying air into the Triton were controlled through D.O. probes located in the aeration basin. Once all the electro mechanical work was complete the Tritons were switched on and the old aeration system switched off. The plant aeration system upgrade was achieved in less than one week’s time on site and without any downtime on the existing treatment process. There was no need to hire temporary plants to relieve activated sludge plant. Apart from large savings in capital and operating costs, the biggest benefit was that all the logistics and space problems associated with installing a temporary plant were avoided. The noise emitted by the new aeration system is much lower than specified and definitely lower than the previous system. The process performance of the plant has improved and the plant is able to meet its specified process objectives and has continued to do so for over twelve months.
For more information visit the KEE website.
With its extensive experience of on-site servicing of all types of wastewater treatment and pumping equipment, its technicians have the knowledge necessary to protect its customers’ investment and the environment.
KEE Services Limited offers planned maintenance programmes ranging from an annual visit to full plant operation. Its aim is to respond to all of your urgent servicing and maintenance needs. The KEE Services Team of fully trained Technicians operates on both a local and regional basis to ensure a prompt and reliable service.
Committed to maintaining your environment
For full information on KEE Technologies and Services visit the:
KEE Services Planned Maintenance site.
Design, Installation and Operation of On-Site Plants
Rotating Biological Contactor (RBC)
Submerged Aerated Filters (NuSAF)
Fine Bubble Aeration & Mixing Systems
Attached Growth Airlift Reactor (AGAR®)
Primary and Final Settlement Tanks
Grease Management System – Biological Solution to Fat, Oil and Grease (FOG)
For full information on KEE Technologies and Services visit the KEE Group website
or call 01296 634500
Most of the times your wastewater treatment system will need no intervention from you to do its work. All it will require is the annual desludging and that’s when KEE Services can help.
We provide a timely, guaranteed and professional service to empty your wastewater system. But that’s not all! We also provide advice and support and can help you to keep everything working sweetly.
Waste water from sinks, baths, showers, dishwashers, washing machines and toilets are plumbed into your foul drainage system. This waste arrives at the wastewater treatment system where the solids settle to the bottom and light materials such as grease, suds etc. float to the top. For every litre that flows into the tank a litre must flow out into the drainage field below the septic tank. There is very little biological treatment within a septic tank, although modern package sewage plants do treat the effluent.
If the tank is not emptied on a regular basis solids will be washed into the drainage field and can cause blockages. These blockages are hard to remove and the most common remedy is to install a new drainage field. This can be very expensive compared to regular emptying.
KEE Tankering Services or Jetting Services
Why KEE Services Tankering?
Reasons why you should choose KEE Services to empty your Wastewater Treatment System.
We have been servicing, repairing and emptying wastewater treatment systems for more than 60 years.
Call 01296 634500 to arrange a visit or go to the KEE Services website for more information.