I have seen that normally available river flows divided by the population of the country is taken as water availability (cubic meters per person per year) for the country. I feel that available rainfall below the measuring points for river flows should also be included towards water availability calculations.
I want to know the opinion of other colleagues in this regard.
Water availability should also account groundwater resources. Freshwater resources need to be estimated annually based on established procedures. This will require some good data and acceptable method or tool.
Dear Melesse, Thank you much for the reply.
I considered this to be an important discussion, so added the question. But you are the first one who replied, thank you once again.
Groundwater resources is a by-product of surface flows and rainfall. Therefore, in my opinion, groundwater should not be included, otherwise this would over estimate the water availability, as the groundwater would be double counted, once as surface and then as groundwater (being recharged from surface).
Kindly carry on the discussion, thank you once again.
Hello, guys, I need resources for these types of questions. if anyone can help I would appreciate it.
Q: How much water resource is required for a person/year to keep better river quality?
Please calculate under following assumption; (2 significant figures)
- Water consumption per person per day: 250 L
- BOD value of treated water by biological wastewater treatment process: 20 mg/L
-BOD value for maintenance of biological ecosystem in the aquatic environment: 4 mg/L