- Is your treatment works meeting the required EA standard discharge consent?
- Can it deal with the flow it was designed for?
- Is it checked, maintained or are samples taken regularly?
- Can it deal with a large difference in flow?
If the answer is no to even one of those questions you could be causing a pollution or at least breaking regulations. Final effluent containing high ammonia, high solids etc can kill the very organisms required for our wildlife to flourish and most small treatment plants discharge through a soak away, so no one is aware when the sample is compromised.
Patented by PWS, the Filtration+ unit has been developed specifically to provide peace of mind by providing an effective extra treatment step to ensure that the effluent being discharged stays within consent levels for TSS. Currently, when plants fail to meet the discharge consent levels set by the Environment Agencies, utilities spend a small fortune (often hundreds of thousands of pounds) on unnecessary control units and tankering to bring them under control. The Filtration+ can be quickly installed within the existing problem to ensure the final effluent quality remains within consent.
Sample taken from a 2 year old Filtration+ unit
What causes the sewage/wastewater problem?
All wastewater treatment plants have an allowable discharge consent limit for 'solids' being discharged from the plant in the final effluent. These limits are set by the Environment Agency (EA) and will vary from plant to plant depending on such factors as how 'environmentally sensitive' the waterway being discharged in to is. If the levels within a sample are excessive the plant fails and large fines are imposed on the operator until it is brought back within the agreed limits. It's at this point that the Filtration Unit is introduced to take care of these additional solids as well as lowering ammonia levels (which is another area a WWTP can fail).
How long does it take to install?
The Filtration+ is delivered as one complete unit. There are several factors that affect exactely how long they take to install such as proximity of the tank to the outlet, how far the return is and whether the system is gravity fed or pumped. As a general rule the units would take no longer than a week to install in most cases.
Product Specification:
- Constructed using green or black GRP or Polypropylene
- Overall gross capacity is 9740 litres
- External diameter 3000mm x 1250mm overall vertical height
- Inner compartment diameter is 2000mm
- Deals with dry weather flows from a 200PE WWTP - if larger flows are required then more than one unit can be installed
Additional Information:
- Settles and removes suspended solids whilst also lowering ammonia levels through use of reeds
- Solids can be removed by a desludge pipe and returned to inlet or other as required
- Bagged media is used to make it easier to clean / replace / unblock
- The unit is completely covered to ensure nothing can be blown into the tanks such as leaves, grass trimmings or anything else that would affect the quality of the final effluent
- Units come in one size for ease of transportation but can be combined (doubled, tripled etc) for use in larger works
- The influent can be pumped or gravity fed
Photo of a Filtration+ unit taken at winter time with the reeds cut
Photo of a Filtration+ unit taken in the summer with the reeds fully grown
BENEFITS:
OFFERS AFFORDABLE SOLUTION TO SOLVING FINAL EFFLUENT PROBLEMS WITH TOTAL SUSPENDED SOLIDS
LOW MAINTENANCE AS THERE ARE NO MOVING PARTS
CAN EXTEND THE LIFE OF EXISTING PLANTS BY AS MUCH AS 10-15 YEARS
SCALABLE (THROUGH THE USE OF MULTIPLE UNITS TO DEAL WITH FLOWS FROM LARGER WORKS)
HELPS REDUCE AMMONIA LEVELS IN THE SUMMER WITH THE USE OF REEDS
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