Decontamination apparatus mobile water

• US 4,999,103 A
• Filed: 09/25/1989
• Issued: 03/12/1991
• Est. Priority Date: 12/11/1987
• Status: Expired due to Fees

• Current Assignee: John D. Bogart
• Original Assignee: John D. Bogart
• Inventors: Bogart, John D.
• Primary Examiner(s): Wyse, Tom
• Application Number:
  US07/411,267
• Time in Patent Office: 533 Days
• Field of Search: 210/615, 210/626, 210/150, 210/151, 210/195.1, 210/195.3, 210/199, 210/201, 210/220, 210/241
• US Class Current: 210/151
• CPC Class Codes: C02F 3/06 using submerged filters
• CPC Class Codes: C02F 3/121 Multistep treatment
• CPC Class Codes: C02F 3/1242 Small compact installations for use in homes, apartment blocks, hotels or the like
• CPC Class Codes: C02F 3/20 using diffusers
• CPC Class Codes: Y02W 10/10 Biological treatment of water, waste water, or sewage

Abstract

A mobile tank for decontamination of waste or ground water contains multiple cells for biological treatment and clarification of the water. Systems are provided for aerating the treatment cells and for recycling activated bacteria from the clarifier cell to the primary treatment cell.

Claims

1. An apparatus for treatment of industrial, organically-contaminated water supplies using a method of bacterial biodegradation comprising a longitudinally elongated, horizontally disposed tank including end bulkheads, at least two divider baffles oriented vertically and in spaced relation to each other and the bulkheads, each divider baffle being joined with the periphery of the tank to divide the interior of the tank into a primary treatment cell, a secondary treatment and a clarifier cell, said cells being arranged in tandem relation, an inlet for contaminated water in one end bulkhead for supplying contaminated water to the primary treatment cell, said inlet being located adjacent the top of but spaced below the top of the primary treatment cell, an outlet for treated water in the other end bulkhead for discharging treated water from the clarifier cell, said outlet being disposed at the same elevation as the inlet, a plurality of air spargers located in the bottom portion of each of the treatment cells, blower means communicated with said air spargers for discharging air into the bottom portion of each of said treatment cells, each of said divider baffles having a port at the same elevation as the inlet and outlet for communicating said cells, a vertically disposed directional baffle disposed adjacent to but spaced from the end bulkhead having the inlet therein with the upper end disposed above the inlet and the lower end disposed above the bottom of the tank thereby directing flow from incoming contaminated water downwardly toward the bottom of the primary treatment cell for passage below the lower end of the directional baffle, a vertically disposed directional baffle located in the secondary treatment cell and disposed adjacent to but in spaced relation to the divider baffle between the primary and secondary treatment cells with the upper end thereof disposed above the port in the divider baffle and the lower end disposed above the bottom of the tank thereby directing flow from the primary treatment cell into the secondary treatment cell downwardly under the lower end of the directional baffle, a pair of vertically disposed stilling plates in said clarifier cell, said stilling plates being spaced from each other and spaced from the divider baffle defining the secondary treatment cell and the bulkhead having the outlet therein with the upper end of the stilling plates extending above the ports and the lower end disposed above the bottom of the tank for directing flow through the clarifier cell, each of said divider baffles including a trash block in the form of a plate spaced from the port on the upstream side thereof and extending above and below the port to block flow of surface debris through the ports, said bulkhead having the outlet therein including a trash block in the form of a plate spaced from the outlet and extending above and below the outlet to block flow of surface debris from the outlet, each of said treatment cells including synthetic biomedia in the form of activated bacteria added thereto, and means communicating with the bottom portion of the clarifier cell and the primary treatment cell to return activated bacteria from the clarifier cell to the primary treatment cell.

2. The structure as defined in claim 1 wherein said means returning activated bacteria includes a pair of inclined slide plates forming the bottom of said clarifier cell, a pump communicating with the area of the clarifier cell defined by the lower ends of the inclined plates, a recycle pipe extending from the pump to the bottom of the primary treatment cell at a point adjacent the end bulkhead having the inlet therein.

3. The structure as defined in claim 2 wherein said tank is provided with skid beam and a wheel/axle assembly to enable the apparatus to be moved over the road to a treatment site by towing.