1
Which treatment is necessary for storm water?
2
Which method of backflow prevention has the following disadvantages: Highly sensitive to sand and solid objects in the water. In a backflow situation, it is not possible to use the sanitary facilities that are connected to this device. Storm water drains cannot be connected to this device. The device is not 100% safe and should be used only to protect secondary rooms with no vital technical installations.
3
What is grey wastewater?
4
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.
5
Why is the life cycle cost of the pressurised wastewater system low?
6
What are the disadvantages of the traditional gravitation system?
7
What are the four most common types of wastewater from commercial buildings?
8
Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
Test results
01.
Q: Which treatment is necessary for storm water?
A: It has to go through an oil/petrol separator
01.
Q: Which treatment is necessary for storm water?
A: It has to go through a sand pressure
01.
Q: Which treatment is necessary for storm water?
A: None – it is pumped directly to the recipient
02.
Q: Which method of backflow prevention has the following disadvantages: Highly sensitive to sand and solid objects in the water. In a backflow situation, it is not possible to use the sanitary facilities that are connected to this device. Storm water drains cannot be connected to this device. The device is not 100% safe and should be used only to protect secondary rooms with no vital technical installations.
A: Anti-flooding valves
02.
Q: Which method of backflow prevention has the following disadvantages: Highly sensitive to sand and solid objects in the water. In a backflow situation, it is not possible to use the sanitary facilities that are connected to this device. Storm water drains cannot be connected to this device. The device is not 100% safe and should be used only to protect secondary rooms with no vital technical installations.
A: Pumping stations
02.
Q: Which method of backflow prevention has the following disadvantages: Highly sensitive to sand and solid objects in the water. In a backflow situation, it is not possible to use the sanitary facilities that are connected to this device. Storm water drains cannot be connected to this device. The device is not 100% safe and should be used only to protect secondary rooms with no vital technical installations.
A: Lifting stations
03.
Q: What is grey wastewater?
A: Water, which is discharged from showers, sinks, washing machines, canteen kitchens etc.
03.
Q: What is grey wastewater?
A: Water which is primarily discharged from toilets
03.
Q: What is grey wastewater?
A: Water which has not been affected by human influence
04.
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
04.
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
04.
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
05.
Q: Why is the life cycle cost of the pressurised wastewater system low?
A: There are only a few gravitation pipes outside the building and the excavation cost is low
05.
Q: Why is the life cycle cost of the pressurised wastewater system low?
A: The initial cost of the lifting station is lower compared with a pit and there are no gravitation pipes outside the building
05.
Q: Why is the life cycle cost of the pressurised wastewater system low?
A: The lifting station and the pipe system is maintenance-free
06.
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
06.
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
06.
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.
07.
Q: What are the four most common types of wastewater from commercial buildings?
A: Wastewater, storm water, drainage water and wastewater from parking areas
07.
Q: What are the four most common types of wastewater from commercial buildings?
A: Rainwater, wastewater, storm water and drainage water
07.
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
08.
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
A: Anti-flooding valves
08.
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
A: Pumping stations
08.
Q: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
A: Lifting stations