Contaminant removal system utilizing disc filter

A system for removing at least one contaminant from an influent, the system comprising:

• a first section comprising a tube section, the first section receiving the influent, dividing the influent into a first flow and a sludge, and discharging the first flow;
• a first coagulant inlet positioned upstream of the first section and in fluid communication with the influent to introduce a first coagulant for precipitating the contaminant;
• a second section comprising an adsorption clarifier, the second section receiving the first flow and discharging a second flow;
• a third section comprising a disc filter, the third section receiving the second flow and discharging an effluent;
• a second coagulant inlet positioned downstream of the first section and upstream of the third section to introduce a second coagulant for precipitating the contaminant;
• a first return line connecting the sludge to a position upstream of, and in fluid communication with, the first section, wherein a portion of the sludge is pumped via the first return line to a position upstream of the first section, and wherein a portion of the sludge is mixed with the influent;
• and
• at least one additional return line connecting a position downstream of the first section, to a position upstream of, and in fluid communication with, the first section, wherein a portion of contaminates from the position downstream of the first section is pumped via the additional return line to a position upstream of the first section, and wherein a portion of the contaminates is mixed with the influent, wherein a third coagulant is introduced into the first return line before the portion of sludge is mixed with the influent.