Patent ID: 7288192

Claim:
A water treatment apparatus, wherein: the apparatus includes a shipping-container having front, back, left, right, side-walls, and a roof and a floor, collectively termed container-walls, of rigid structural material; the volume overall of the shipping-container is CV; the container-walls are rigidly fixed together, in such manner that the inwards-facing surfaces of the container-walls together define an enclosed rectangular hollow box-like container-chamber of the shipping-container; the shipping-container combines portability and mechanical rigidity to the extent that it can be picked up, as a unitary structure, and placed on and transported on a truck, substantially without distortion; the apparatus includes a liner, and the liner is formed with an inner surface layer, which defines a lined-chamber, which is suitable for holding a body of water to be treated; the inner surface layer is continuous and unbroken, and watertight; the lined-chamber includes an inlet-port and an outlet port; the lined-chamber includes a water-treatment station, and the apparatus is configured to convey water to be treated in through the inlet-port, through the water-treatment station, and out through the outlet-port; the water treatment station is of such physical structure as to be effective to so treat water passing therethrough that the biochemical oxygen demand (BOD) of water in the outlet-port is lower than the BOD of water in the inlet-port; the apparatus includes wall-supports, which provide backing support for the watertight layer of the liner; the wall-supports physically support the watertight layer of the liner, in such manner that the watertight layer lies supported mechanically with respect to the container-walls; the wall-supports are robust enough to maintain the said mechanical support for the watertight layer of the liner with respect to the container-walls when the body of water is present in the lined-chamber.