activated sludge process

treatment process used in sewage plants

en-US/ˈæktɪˌveɪdɪd ˈslʌd͡ʒ ˈpɹɑˌsɛs/
en-GB/ˈæktɪveɪtɪd ˈslʌd͡ʒ ˈpɹəʊsɛs/

หมวดหมู่:

process