【Daily Question】Utilities - Water Supply and Drainage - 20200313
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Which of the following statements regarding the installation of local treatment structures is incorrect? ( ) A. All wastewater with a pH value other than 7 should be neutralized before being discharged into the municipal drainage system. B. The wastewater from car washes contains a large amount of sediment, and it should be settled before being discharged into the urban drainage network. C. Hair collection tanks (devices) should generally be installed on the drains in barbershops as well as at the outlet ends of swimming pool circulation pumps. D. Hospital wastewater must be disinfected. Answer: A. Option A does not meet the requirements specified in Section 10.6.1 of the current \"Water Supply and Drainage Design Manual, Volume 2: Building Water Supply and Drainage Systems\". Options B and C meet the relevant requirements of Sections 10.4 and 10.7 of the current \"Water Supply and Drainage Design Manual, Volume 2: Building Water Supply and Drainage Systems\". Option D complies with the provisions of Article 4.8.8 of the Code for Design of Building Water Supply and Drainage Systems
C. Hair collection pits (devices) should generally be installed on the drainage pipes in barbershops and at the inlet end of swimming pool circulation pumps