【Daily Question】Utilities - Water Supply and Drainage - 20200129
Thread Content
Among the statements regarding domestic wastewater volumes, which one does not conform to the \"Code for Design of Building Water Supply and Drainage\"? ( ) A. The wastewater discharge rate for domestic wastewater systems in residential areas is 85%~95% of the corresponding water consumption rate for domestic water supply systems. B. The design flow rate for domestic wastewater in residential areas should be determined as the sum of the design second-flow rates for residential domestic wastewater and those for domestic wastewater in commercial buildings. C. The hourly variation coefficient for domestic wastewater systems in residential areas is the same as that of the corresponding domestic water supply systems. D. The wastewater discharge rate for domestic wastewater systems in commercial buildings is the same as the corresponding water consumption rate for domestic water supply systems. Answer: B
B. The design flow rate for domestic wastewater in residential areas should be determined as the sum of the design second-flow rate for domestic wastewater from residential buildings and that from public buildings