Raws li lub ntiaj teb nce rau kev txhim kho kom ruaj khov, xoom-carbonive tau dhau los ua cov tsev neeg tseem ceeb rau cov tsev tshiab, tshwj xeeb yog cov ntoo hauv qab ntoo. A well-designed sewage treatment system plays an essential role in achieving this objective, ensuring that wastewater is...