3、eproportionoftheharmfulfactorsinthewater.Thentargeting at them,andtakecontroloftheamountofadditives,usingtheminimumdosetoremovetheharmfulfactorsinthewaterandachievingthedesiredmud,soastoachievethepurposeofcontrollingcosts.Keywords:waterqualityanalysis;mud;crossbyhorizontaldirectionaldri