Water sample collection
Tap water was collected from Jinan in China. A barrel made of polyethylene with volume of 25L was
used to collect the water. Three adsorption column filled with activated carbon, haydite and quartz sand
were prepared to remove organic pollutants in tap water. All of column had a filler volume o f 2L. 20L
collected tap water was pumped into column by a peristaltic pump and the contact time was controlled in
1h [18]. In this experiment, we used sample 1, sample 2 and sample 3 to represent water samples treated
by activated carbon, haydite and quartz sand column respectively, corresponding to their raw water
sample a, b and c. All water samples were adjust to pH