Fig. 7From: Fixed-bed column recirculation system for investigation of sorption and biodegradation of organic pollutants in saturated sediment: a detailed design and developmentTesting the fixed-bed column recirculation system with Version 4: flux of mecoprop (MCPP) in river sediment (Experiment 3). Error bars represent standard error of three replicates. RW river water, RS river sedimentBack to article page