MOBILE DEWATERING SERVICE
ALL TYPES OF WET WASTE RECYCLED AND DE-WATERED ON SITE
SEE THE MACHINE IN ACTION
CLICK ON THE FOLLOWING VIDEOS
A Lake Clean we carried out in 2011 in conjunction with AquajoyWaterGardens
The following video shows the above lake's sludge being dewatered.
At the end of the job we had dewatered 686 cubic mtrs of thick wet sludge and from this, produced approx 98 cubic mtrs of dried caked which was in great demand as a top quality composting additive.
During this job Thames Water closely monitered the trucks ability to process the sludge as most of the cleansed water was being discharged to their sewer, plus to satisfy their curiosity as to how this very unusal vehicle was able to stay within their very strict solids limits of discharging to a sewer.
The samples of the trucks discharge, which Thames removed from site, were computer analized and the results proved to very acceptable much to their surprise, especially when it was considered what we were dewatering and with the visual display of a few hundred tons of thick, black sludge exposing itself on the lake bed, it was no wonder Thames Water staff were sceptical.
These results have placed our KSA dewaterer as High Ranking with Thames.
___________________________________________________________________
A brief experiment with concrete slurry.
__________________________________________________________________
STEP INTO THE 21st
CENTURY
A major step forward to respecting our
environment with an added attraction
of
Reducing Your Costs
Having been involved with sewage disposal for almost 36 years I would like to share some of my views with you and hopefully highlight a problem which we can help to solve.
With you being the owner of a property which is reliant on a drainage system that does not share the main sewerage network I feel the following may well be of some considerable interest to you in more ways than one.
Moos KSA
Mobile sludge dewatering incorporating 30 years
Experience and Development
Due to our commitment and strong feelings towards our global environment,
Clearmasters has heavily invested in a Danish built
'Mobile Dewatering Unit' called a 'Simon Moos KSA'.
The principle behind the MOOS KSA system is "volume reduction".
Realising that the average tanker load of sludge contained a very high percentage of water, which was and still is needlessly being transported for disposal at the local waste water treatment works, Simon Moos developed a system that would take the treatment works to the sludge and the KSA was born.
In a time when Utility disposal charges are set to increase for the reception of tanker waste and with more and more sewage works refusing to accept strong imported liquids, tanker companies like us are being forced to travel further afield to deposit our loads. This is having a major effect on our transport costs not to mention the time that is wasted with these extra journeys.
With over 1200 domestic customers on our database we feel rather excited in proving to all concerned that this will be .........the future of wet waste disposal.
Even though this KSA is a highly sophisticated machine that will take good training and skill to operate properly I must stress the hardest thing of this whole project is to try and prove to you, the customer, that de-sludging and re-priming is the right thing to do, especially after a period that stretches back further than most of us can remember that 'emptying means emptying'.
To see a full explanation on this topic please read page 8 onwards of this write up.
• Offers you a welcome cost reduction which further increases if a local community syndicate is organised and serviced on the same day or under the same booking.
• Lower transport and running costs reducing the carbon footprint of vehicles on the road.
• Lower disposal costs
. Conserve fresh water supplies.
• You are recycling your waste and helping the environment.
• Reduces the pressure on the Waste Water Treatment plants
• Ensures the efficiency of your sewage drainage system.
The current situation with global warming, the rising amounts of waste being produced and the growing need to reduce it along with other sources of pollution has resulted globally in various political initiatives, the purpose of which is to change the attitude of waste companies, industry and even the domestic waste producer (be it wet or dry) in order to obtain a greater environmental awareness.
In financial terms, over the years companies have suffered increasing costs for the disposal of waste water and these charges have been applied to standard rates for tank cleaning and disposal.
The Simon Moos KSA system fits the global environmental strategy very well because it reduces waste volumes by up to 90% and the dry filter cake produced as the end product can be safely recycled and used as fertilizer after a controlled sanitation process.
Page 3
Step 1 : The contents of the septic tank are sucked up into the sludge tank.
Step 2: The contents of the sludge tank are pumped up into the dewatering tank. During pumping polymer is added.
Page 4
Step 4 : Tipping of the dewatered sludge
Page 5
.the advantages of the KSA system!
The KSA operation's effectiveness is based upon 30 years of experience and development by Simon Moos.
• An approximate volume reduction of between 60% - 90 %!
• Transport time and running costs are greatly reduced!
• A radical reduction in disposal costs as all the permeate has been used to re-prime the septic tank or treatment plant with the correct PH and bacteria cultured liquid, thus maintaining its Eco system.
• Able to be self-sufficient with jetting water!
• Deliver a rapid and effective dewatering of 5m3 in 8 minutes or 30m3 per hour direct feed!
• Complete remote control of all necessary functions!
.an effective operation..how it works.
The KSA can be operated either from the control panel in the machine room or by way of a radio remote control.
The sludge is taken up into the vacuum tank exactly the same way as you would by a traditional jet-vac or tanker.
When the vacuum tank has been filled, the sludge is then pumped into the dewatering chamber via the machine room. (See picture below)
During this process an onboard tank of liquefied polymer is electronically injected into the flow causing flocculation. During and after the pumping process the dewatering takes place through the filter screens. The flocculated dry matter is effectively held back by specially designed filter screens, allowing the permeate to drain into a collection chamber below.
Page 6 ...a quality cleansed water During the dewatering process the flocculated sludge captures any harmful particles and holds them as dewatered cake. This means that the cleansed water is of a high quality and can be used for jetting and to re-prime septic tanks, interceptors, car washes, ponds, lakes, etc. 
The KSA is unique in its performance as shown in the reduction figures below.
Parameter KSA Reduction
Suspended Solids (SS) 95%
COD 85%
Total-phosphate (P) 60%
Total-Nitrogen (Tot-N) 67%
Septic tanks / Sewage Treatment Plants
A KSA operator can empty and re-prime many septic tanks and treatment plants in an ordinary working day without having to travel to a disposal point.
Waste Water Treatment Works
Over the years the KSA has played an important part in relieving the pressures on small waste water treatment plants and satellite works where traditionally the effluent was removed by tankers.
River, Pond, Lake Cleaning
The KSA is a great tool in removing silt, algae, silkweed and duckweed from choked canals, ponds and other waterways.
Gully emptying
The KSA is ideal for emptying gullies as it doesn't need to continually refill with clean water (as it produces its own supply) and it is able to discharge its surplus cleansed water safely.
The traditional way of emptying gullies is with a gully sucker. Once full the gully sucker either travels miles to a disposal point or decants its dirty water down the last gully to be cleaned allowing the contaminated water to eventually find its way into a water course, and depositing solids in the drainage system which will need additional cleaning at a later date.....................
"Kind of defeats the object"!
Which type of sewage systems etc will
the KSA unit service?
Any property that has a correctly functioning Sewage Treatment Plant (irrelevant of make) will benefit from this machine.
Septic Tanks that lead to an open, accessible and correctly working discharge point will benefit. i.e. filter, ditch, stream, river, lake etc.
Septic Tanks that discharge to an unknown and or inaccessible discharge point i.e. underground soak away or irrigation field will benefit providing this part of the system is functioning correctly.
Septic Tanks or any system that has 'back up or overflowing problems' will NOT benefit with the KSA
Cesspools (Cesspits as they are sometimes called) will NOT benfit with the KSA.
Pumping chambers, grease traps, gully and surface drainage can all be serviced by the KSA. In-fact any type of system that works on a displacement basis, which is not of a hazardous nature, will probably benefit from the KSA.
Note:
This machine carries approximately 60 metres of 3 inch suction hose and to reach any chamber beyond this length will require extra hoses to be delivered to the site and will incur an additional charge beyond normal rates.
Page 8
Over the past 70 years normal suction tankers have been the only effective option of emptying and de-sludging Cesspools, Septic tanks and Sewage treatment Plants.
Below, in the History section of this letter (page 9), I explain that over the past 90 years Sewage tanks have changed considerably, this really only applies to their structural design rather than their process.
Septic tanks and Treatment Plants have their own Eco System working on a natural process and most of the current manufacturers of modern package plants state that it takes approximately two to three months for a system to become established with the right cultured and bacteria fuelled liquid to enable the system to function correctly, especially when commissioning a new plant.
Periodic emptying of these tanks is the correct and only option to remove the excess build up of sludge. Unfortunately the only method to remove this sludge is to pump out the full contents, which in turn removes the digesting processes from the tank.
Ordinary sludge suction empties the tank. The micro-organisms disappear at the same time. It takes a long time before the biological process starts again, if it ever does.
Terms Explained:
Anaerobic: Not needing oxygen.
Aerobic: Needing oxygen.
Living or taking place only in the presence of oxygen.
A little known fact is that most manufacturers of sewage tanks recommend that when emptying these systems a fraction of its 'Anaerobic' digested sludge should be left in the tank to allow the continuation of 'Enzymes' and to refill the system as soon as possible to avoid the 'Anaerobic' digestion process dying off from the introduction of oxygen. Also by refilling the tank it will help to maintain the 'Aerobic' digestion process of the tanks final stage.
Refilling also reduces the risk of tank flotation which can occur in wet or seasonal effected sub-soils, especially if they have been installed incorrectly.
Unfortunately refilling these systems with normal practices comes with certain problems.
1. Clean water has no Enzymes to maintain the tanks Eco system.
2. The refilling process needs to be monitored.
3. It is a drain on our country's fresh water supplies.
4. Metered water demands a premium.
Fact:
I have personally experienced tank flotation four times with a wet season emptying, where the surrounding water table forced the empty tank out of the ground. Investigations proved these tanks were installed during the dry summer months (where no underground water was evident), not surrounded by suitable backfill (concrete) and simply floated upwards as soon as the weight of the contents was removed.
The History of private Sewage Tanks
and their emptying procedures.
Cesspool/Septic tank systems have changed considerably over the past 90 years.
Moving back to the 1920s when sewage control legislation was introduced with laws being enforced stipulating all private dwellings that were not connected to the main sewage network were to install a vessel on their property that effectively collected all waste water being produced by its occupiers.
The easy option was to install a brick-built cesspool, an underground chamber that had no outlet, which was fed by a network of pipes leading from the property. When the tank became full they were simply pumped out manually by typically a cast iron hand pump, sited over the tank, removing as much liquid as possible, with the effluent being dumped onto the garden or surrounding area.
The best option of the day was to install a Septic tank, this was also constructed of brickwork that normally consisted of a main primary holding tank which fed to other tanks and then through a filter system and in turn was piped away to a water course, drainage field or something similar. These systems were emptied very infrequently and providing the internal pipe work stayed in position and occasional maintenance was given to the filters distribution apparatus, they worked very well.
When it did come to emptying, the solids would be removed manually by a long handled ladle.
Due to this low use of water most Septic tanks that were installed for the average sized house, consisted of a very small capacity with a general size of around 400-500 gallons.
Cesspools were built larger with an average size of around 1000 gallons.
Even with these small capacities, in general most systems, that received periodic servicing, served its purpose well.
We have to consider that back in those days water usage was at a fraction to what we use today. Many rural houses relied on non flushing 'night soil buckets' that were housed in a remote outside building.
Unhygienic 'Chamber pots' were still being used for convenience in the house. Ablutions or laundry washing water was regularly tipped on the garden. Automatic dishwashers and washing machines had not been invented. Bathrooms were an absolute luxury and creature habits often dictated a weekly bath rather than daily.
As time progressed and hygiene standards improved, commercial road vehicles evolved for the better and local authorities purchased 'specialised tankers' which were employed to carry out the emptying tasks of their rural community's sewage systems. The extracted contents was transported by road to one of the many local sewage works or to an allocated discharge point which lead to a works and simply deposited into the system.
With post war boom from around the 1950s many houses were modernized along with new properties being built which incorporated modern amenities, toilets were sited or moved indoors and now all came with flushing systems, bathrooms became a normality rather than a luxury and incorporated hot and cold running water.
Page 10
Housewife's discovered water hungry automatic washing machines to aid their wash days, followed by automatic dishwashers.
All in all we became a cleaner 'mod con' nation, albeit a thirsty one.
The downfall to this new found cleanliness was a higher demand of water which in turn produced a higher amount of waste, carrying a great burden onto not just the dated Public Sewage Works but also on to the now dated and often neglected domestic and commercial Cesspools and Septic tanks across the country.
In a bid to cope, two major changes evolved around this period. Firstly the government invested large amounts of money to increase and modernize the effective size of their existing sewage works, with the extreme of many new works being built and thousands of miles of sewers being updated or installed with many leading to new or updated sub pumping stations and inter-connecting pumped rising mains.
Secondly, thousands of house holders that were still using private sewage systems had to improve or replace their drainage.
Many new Cesspools were installed some consisting of massive capacities because now most Authorities had incorporated the emptying of these tanks into their normal responsibilities and huge capacities meant less frequent and inconvenient visits by a large, noisy and smelly tanker.
Other people found it far easier to convert their Cesspool by adding a drain-off system to the tank if the surrounding sub-soil could support land drainage, which often was not the case.
Thousands of septic tanks were replaced over this period but this was more due to their state of repair rather than their size, as now with a regular empty, many dilapidated systems were being discovered and pointed out by the authority's tanker operatives, or with the added usage, many tanks just couldn't cope with their demand and simply overflowed highlighting their uselessness visually.
During the 1970s innovative progress gave us the compact sewage package consisting of a single unit system and constructed of non corrosive materials.
With years of experimental sewage treatment experience behind the concept, the glass- reinforced plastic (GRP) constructed 'Sewage Treatment Plant' was patented and produced, along with an all in one 'Three Stage Septic tank'.
To complete all options 'Cesspools' of any size and consisting of one unit could also be specified, some as large as 30,000 gallons.
Treatment Plants
These 'packaged' plants come in all shapes and sizes but all use the same science in their process of tackling sewage - Starving settled sludge of oxygen creates an 'Anaerobic' digestion process and by putting bacteria into contact with oxygen and food (organic waste) results in a natural biological breakdown 'Aerobic' digestion. In effect it was a scaled down version of the concept behind a Public Sewage Works.
No Treatment Plant is a 'fit & forget' product as they do require periodic maintenance and a degree of care to keep working to optimum levels. What they do offer though is the most environmentally and authority friendly way of solving an Off-Mains drainage problem.
Page 11
Septic Tanks
The all in one three stage septic tank has proved itself to be a popular option.
It is constructed as a simple GRP globe shaped unit and incorporates the access neck with inlet and outlet pipes fitted.
It is very easy to install the tank (usually with a days labour), has no mechanical or electrical parts and can be purchased at a reasonable price.
This simple system is a multi-chamber storage tank allowing liquid and solid waste to separate: The liquid is allowed to flow out of the tank and be disposed of separately.
Firstly the sewage enters a settlement chamber, allowing solid waste (sludge) to sink and the liquid to rise to the surface. The surface liquid makes contact with oxygen and the organic matter starts to breakdown biologically. This liquid still contains sewage but in small enough particles to be carried through the discharge outlet and into the ground soak-a-way, watercourse or drainage ditch.
Septic Tanks only partially treat sewage. Many areas of the UK & Ireland prohibit the installation of Septic Tanks.
Cesspools
A Cesspool is simply a single-chamber storage tank with no outlet. The tank is usually very large (as it has to contain all waste water & sewage) and often made from concrete, brick or GRP. The only way to dispose of the waste is by hiring a licensed sewage contractor to remove the sewage for off-site disposal with a conventional tanker.
I hope this information has been of interest to you and I thank you for taking the time to read it.
If any questions need answering please feel free to contact us via one of the following:
Office Telephone: 2 lines……..01306 886125
Facsimile………………………01306 883171
Email………………………….clearmasters@aol.com
Colin French
……………at your disposal