Fig. 4
From: Effect of wine pomace extract on dechlorination of chloroethenes in soil suspension
Dechlorination of tetrachloroethene into ethene in cultured groundwater by wine pomace extract or three carboxylic acids, i.e., l-lactic acid, l-tartaric acid, and syringic acid. Symbols in the graphs represent the concentrations of tetrachloroethene (open squares), trichloroethene (closed squares), 1,2-dichloroethene (open circles), and vinyl chloride (closed circles) over the 40-day test period. Values are means ± SD (n = 3)