Of the three anti-flooding systems, why is the lifting station the superior system?
Which treatment is necessary for storm water?
Under which circumstances should you consider a pressurised wastewater system rather than a gravitation system
What are the disadvantages of the traditional gravitation system?
Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
What is grey wastewater?
What are the four most common types of wastewater from commercial buildings?
Who has the financial responsibility in the case of flooding in most countries?
Test results
Q: Of the three anti-flooding systems, why is the lifting station the superior system?
A: It is located outside the building which means bad odour is never a problem
Q: Of the three anti-flooding systems, why is the lifting station the superior system?
A: The storage volume is high and it is easy to assemble and install
Q: Of the three anti-flooding systems, why is the lifting station the superior system?
A: It is pre-assembled and its location inside the building makes it easily accessible for service. Furthermore, it offers maximum backflow and flooding protection
Q: Which treatment is necessary for storm water?
A: It has to go through an oil/petrol separator
Q: Which treatment is necessary for storm water?
A: It has to go through a sand pressure
Q: Which treatment is necessary for storm water?
A: None – it is pumped directly to the recipient
Q: Under which circumstances should you consider a pressurised wastewater system rather than a gravitation system
A: When there is a long distance between the building and the sewer main, when the sewer main is up-hill or when there are obstacles between the building and the sewer main.
Q: Under which circumstances should you consider a pressurised wastewater system rather than a gravitation system
A: When there is a long distance between the building and the sewer main or when the sewer main is located far below the building.
Q: Under which circumstances should you consider a pressurised wastewater system rather than a gravitation system
A: When there is a short distance between the building and the sewer main or there are obstacles between the building and sewer main.
Q: What are the disadvantages of the traditional gravitation system?
A: Many gravitation pipes with a small diameter have to be installed outside the building and the inspection wells are expensive
Q: What are the disadvantages of the traditional gravitation system?
A: Inspection wells are difficult to maintain and the initial cost of the pumping pit is high
Q: What are the disadvantages of the traditional gravitation system?
A: Many gravitation pipes have to be installed outside the building and a great deal of excavation work is needed.
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
A: Anti-flooding valves
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
A: Pumping stations
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
A: Lifting stations
Q: What is grey wastewater?
A: Water, which is discharged from showers, sinks, washing machines, canteen kitchens etc.
Q: What is grey wastewater?
A: Water which is primarily discharged from toilets
Q: What is grey wastewater?
A: Water which has not been affected by human influence
Q: What are the four most common types of wastewater from commercial buildings?
A: Wastewater, storm water, drainage water and wastewater from parking areas
Q: What are the four most common types of wastewater from commercial buildings?
A: Rainwater, wastewater, storm water and drainage water
Q: What are the four most common types of wastewater from commercial buildings?
A: Wastewater, storm water, air-conditioning wastewater and wastewater from parking areas
Q: Who has the financial responsibility in the case of flooding in most countries?
A: The building owner and the building designers
Q: Who has the financial responsibility in the case of flooding in most countries?
A: The government and the wastewater authorities
Q: Who has the financial responsibility in the case of flooding in most countries?
A: The building designers and the contractors