Life cycle costing of small wastewater treatment systems can often be generic and lack a degree of
detail that could affect the choice of system. Critical factors such as variations in loading, location and
discharge limits are sometimes not given the required weight of importance, and as a result the most
suitable, most economical system may not always be implemented. A decision support tool for small,
new design wastewater treatment plants has been developed that accounts for variations in several
parameters such as scale, discharge limits and sludge disposal. Capital and operational costs have
been combined to produce life cycle models for six treatment systems. Each system was assessed in a
number of scenarios with variations in scale, discharge limits and sludge disposal route. The results
show that in most scenarios, constructed wetlands represent the most economical option where surface area is not restricted. For each system, the percentage contribution of labour to the total operational cost increases as agglomeration size is reduced.
Metadata
Item Type:
Article (Published)
Refereed:
Yes
Uncontrolled Keywords:
Wastewater treatment; Capital and operational expenditure; Life cycle costs; Scenariospecific conditions; Discharge limits
Environmental Protection Agency (EPA) Research Programme 2014–2020. The programme is financed by the Irish Government. It is administered on behalf of the Department of the Environment, Community and Local Government (DECLG) by the EPA
ID Code:
25787
Deposited On:
22 Apr 2021 14:43 by
Greg Mcnamara
. Last Modified 01 Mar 2022 14:42