| CPC C02F 3/1268 (2013.01) [C02F 3/302 (2013.01)] | 21 Claims |
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1. A method for treating wastewater arising from a plurality of oilfield well pads, comprising:
identifying a first oilfield well pad at a first location, the first oilfield well pad having at least one hydrocarbon well, and a second oilfield well pad at a second location, the second oilfield well pad having at least one hydrocarbon well, where the first location and the second location are spaced apart from one another a first distance of at least 0.5 miles;
estimating a first wastewater production rate from a first man camp facility at the first location;
estimating a second wastewater production rate from a second man camp facility at the second location, where the estimated second wastewater production rate is less than the estimated first wastewater production rate;
positioning, based on the estimated second wastewater production rate being less than the estimated first wastewater production rate, a centralized treatment facility at a central location that is spaced apart from the first location a second distance and spaced apart from the second location a third distance, where the third distance is greater than the second distance;
using a first wastewater transport vehicle to collect at least a portion of the wastewater stored in a first septic tank at the first man camp facility and transporting the collected wastewater from the first septic tank to the centralized treatment facility;
using a second wastewater transport vehicle to collect at least a portion of the wastewater stored in a second septic tank at the second man camp facility and transporting the collected wastewater from the second septic tank to the centralized treatment facility, where the second wastewater transport vehicle is the first wastewater transport vehicle or is different from the first wastewater transport vehicle;
combining as influent the collected wastewater from the first and second man camp facilities in a primary treatment system at the central location;
treating the influent from both man camp facilities simultaneously in a solid settlement tank and an equalization tank in fluid communication with the solid settlement tank to produce primary effluent;
introducing the primary effluent into a secondary treatment system at the central location;
treating the primary effluent with the secondary treatment system to produce secondary effluent; and
utilizing the secondary effluent to control dust adjacent at least one of the first or second man camps.
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