1. Reasons for Choosing
Constructed Wetlands (CWs)
LOCAL CONDITION
CONCLUSION
(3) Limited financial
resources, limited scope for a strong increase in water & wastewater tariffs
• Cost for CWs:
Investment
cost = US$ 3 million
O&M cost
= US$ 0,04 million/year
CWs will reduce the financial burden on Soroca and lead to considerable lower W&WW tariffs than convent. technologies.
• Cost for (optimised) Activated Sludge
system:
Investment
cost = US$ 5,1 million
O&M cost
= US$ 0,30 million/year
(4) About 10 hectare of
land are available for the WWTP
The land requirement for 2-stage CWs is estimated to about 5 ha at present. Hence there is sufficient land available, offering even scope for further expansions.
Local
Conditions <> Conclusions