<h3>Domestic Housesincluding Rental and Holiday Home Sewage Treatment Plants</h3>
Hotels, Pubs, Restaurants
Campsites, Caravan Parks
Offices, Schools, Building Sites
These provide ideal conditions for sewage treatment plants to operate due to:
Single House Treatment Systems:
These have Constant populations, apart from one or two week holidays.
They are used by the people who pay for sewage treatment plant maintenance and repairs and who are, therefore, careful.
They receive Industry Standard wastewater concentrations - the concentrations that sewage treatment plants are tested with for their EN12566-3 Certificate.
Multiple House Systems:
These have a constant population.
They also receive Industry Standard wastewater concentrations.
There is anonymity of use which sometimes results in misuse.
Holiday Home Sewage Systems:
These have fluctuating populations.
There are often periods of no use.
They receive Industry Standard wastewater concentrations.
Rental Home Systems:
They can also have periods when the property is empty, between tenants.
They receive Industry Standard watewater concentrations.
They are liable to misuse, as the Landlord pays for maintenance and repairs.
These suffer potentially challenging conditions for sewage treatment plants due to:
Fluctuating populations. Potentially less than 50% of maximum use.
Absence periods or very low use periods, particularly after Christmas and Easter, bad weather, etc.
The wastewater is more highly concretrated with pollutants than the Industry Standard wastewater concentrations that sewage treatment plants are Tested with.
Sanitising products, sterilising solutions, etc. are often used which kill the bacteria in the sewage treatment plant that are needed for digestion of the pollutants.
They are subject to Public use which equals misuse
Potentially challenging conditions for wastewater treatment systems, due to the following facts:
They have fluctuating populations. They often have less people using them than 50% of maximum capacity of the system and often less than 15%, due to seasonal variations, bad weather & week/weekend variation.
They often suffer from total absence periods - often due to bad weather - when no-one is on site
They tend to have much stronger than the Industry Standard wastewater concentrations that all sewage treatment plants are tested with.The wastewater is not so diluted with long showers, baths, washing machines, etc.
They are subject to Public use, which equals misuse.
Potentially challenging conditions for sewage treatment plants:
These have both Static and Fluctuating populations due to increase and decrease in worker numbers, etc.
They have guaranteed absence periods or very low use periods due to School Holidays, Weekends and Bank Holidays.
They receive higher than the Industry Standard wastewater concentration of pollutants, but often low volumes of actual wastewater, as showers, washing machines, etc. are ofen not used.
They often have to cope with stronger cleaning products than normal domestic plants.