摘要
Luang Namtha Provincial SecondarySchool in Luang Namtha County,Luang Namtha Province innorthwestern Laos serves nearly2,000 students as the only provinciallevelsecondary school in the province.Because the school previously lackedsewage treatment equipment, domesticsewage was directly discharged withouttreatment, which not only posed ahealth threat to teachers and students,but also polluted nearby rivers that feedthe Mekong River.
