António Manuel Abreu Freire Diogo

7 Questions 176 Answers 0 Followers

Questions related from António Manuel Abreu Freire Diogo

In unsteady open channel flow, excluding continuity equation, what is the relative importance of different boundary flow conditions in the peak flow?

In unsteady open channel flow of storm water networks of circular section, besides the hydrographs entering in each link resulting from the continuity equation and excluding weirs or control...

24 August 2016 753 9 View

In municipal wastewater treatment, there is currently a clear delimitation between secondary and tertiary treatment?

What basic treatment operations can be considered in each one? Traditionally, primary treatment and secondary biologic treatment included normally separation of settleable solids and reduction of...

26 August 2015 2,184 40 View

Is advantageous and environmentally sustainable at long term marine/submarine outfalls for municipal wastewater after only primary treatment?

The discharge of municipal wastewater after primary treatment is performed currently in waters theoretically with high renovation patterns like in estuaries or oceans, due greatly to the high...

26 August 2015 1,751 80 View

What are the current possible approaches and the short term predictable developments in multi-objective optimization of sewer systems rehabilitation?

Multi-objective optimization can be used in sewer system rehabilitation. Many particular aspects may be modeled and optimized, like rehabilitation costs, reduction of costs of transport and...

23 June 2015 7,098 22 View

In optimization context, what is more powerful and/or reliable: Genetics or Social Behavior?

Several current optimization techniques based on evolutionary evolution try to mimic the social behavior of living communities: fishes, birds, ants, bees and even the human being. It is sometimes...

01 September 2014 9,500 57 View

What is the real relevance in the wastewater treatment of the biochemical and chemical transformations that occur in sanitary sewer networks?

It is well known that the wastewater transport time, aeration and generation of sulphide can be a major concern, particularly in large wastewater systems. What can be the real importance of such...

31 August 2014 408 18 View

What are the best current approaches for computing the head losses that occur in turbulent flows of water?

Many current hydraulic computing models use ancient empirical equations (or methods) for turbulent flows of water as the flow resistance laws (apparently with success), in steady and unsteady...

30 June 2014 8,284 12 View