Stand-alone integrated water treatment system for distributed water supply to small communities

A method for treating water by use of a stand-alone integrated water treatment system the method comprising:

• filtering water provided to an input;
• performing a coagulation process, by a coagulation system, on water which has been filtered to remove material from the water, the coagulation system in operative connection with the input;
• generating floc of a prescribed size in the water, the water being held in a maturation buffer tank in operative connection with the coagulation system;
• separating the water into two water streams by operation of a spiral separator in operative connection with the maturation buffer tank, the two water streams including a first stream of water having a majority of the floc removed and a second stream of water including a concentrated amount of the floc, wherein the spiral separator is configured to separate floc of the prescribed size from the water;
• performing a sterilization operation, by a sterilization system, on the waters the sterilization system in operative connection with the spiral separator and configured to receive the first stream of water;
• and
• outputting the water from the sterilization system as potable water;
• wherein at least one of a flow velocity or a pressure of the water flowing through the spiral separator, or a radius of curvature of a channel of the spiral separator, is adjusted such that the spiral separator separates floc of the prescribed size.