Stoichiometric Relationship Between Humic and Fulvic Acids and Flocculants

In addition to mineral turbidity, surface The typical color of surface waters is waters, lakes, and rivers contain organic between 5 and 200 color units (CU).7 matter responsible for the yellow-brown Drinking water standards permit up to 5 color and for taste and odor. The organic CU. At pH 8.0, a solution of 1 mg/1 of matter poses special problems for waterhumic acids has 26.5 CU, while a solution treatment processes. Black1 2 isolated these of 1 mg/1 of fulvic acids is ten times less organics by low pressure evaporation of colored and has 2.8 CU. colored surface waters and subsequent The o ics inhibu remoyal of iron and