Home›Aquatic ecology›二级处理🌐中文EnglishEspañolPortuguêsالعربية中文EntityQ22908586· pop 5· linked from 138 articles二级处理treatment process for wastewater or sewageAvailable in 5 languagesEspañolPortuguêsالعربيةHausavia Wikidata sitelinks · CC0Connectionssewage treatmentEntitybiodegradationEntityCategoriesAquatic ecologyEnvironmental engineeringPollution control technologiesSanitationSewerageSewerage infrastructure