Abstract: The multi-mode ship uses bulk cargo flow-through vehicle decks that are capable of supporting commercial vehicles, military vehicles, and other general cargo. Bulk cargo is loaded into the multi-mode ship with a bulk cargo transport system. Bulk cargo is loaded on board the multi-mode ship and is discharged from some or all of the vehicle decks, where the bulk cargo flows downward through the vehicle decks and settles on the bottom of the multi-mode ship. The bulk cargo then piles upward through the vehicle decks until it reaches the desired load. The bulk cargo transport system includes conveyors, upper and lower, and at least one vertical conveyor for transporting bulk cargo to, from, and within a cargo hold of the multi-mode ship.

Abstract: The present invention entails a process for treating wastewater utilizing a return activated sludge process. Primary sludge is separated from the wastewater stream and conveyed into a fermentation tank and held a sufficient time to permit hydrolysis of suspended solids so as to produce soluble substrates. Part of the soluble substrates are mixed with nutrified return activated sludge and held for a selected time period to form conditioned return activated sludge. Thereafter, the conditioned return activated sludge is mixed in an initial aerobic treatment zone with pretreated wastewater. Thereafter, the mixed conditioned return activated sludge and pretreatd wastewater is conveyed through a series of treatment zones, which includes at least one anoxic treatment zone, to which part of the soluble substrates are added, where nitrogen and other pollutants are removed from the wastewater.

Abstract: The present invention entails a process for treating wastewater utilizing a return activated sludge process. Primary sludge is separated from the wastewater stream and conveyed into a fermentation tank and held a sufficient time to permit hydrolysis of suspended solids so as to produce soluble substrates. The soluble substrates are mixed with the return activated sludge and held for a selected time period in an anoxic zone, to form conditioned, denitrified return activated sludge, followed by anaerobic treatment, to produce microorganisms that are capable of biologically removing phosphorus. Thereafter, the conditioned return activated sludge is mixed in an initial aerobic treatment zone with pretreated wastewater. Thereafter, the mixed conditioned return activated sludge and pretreated wastewater may be conveyed through a series of treatment zones, which may include at least one anoxic treatment zone.

Abstract: The present invention entails a process for treating wastewater utilizing a return activated sludge process. Primary sludge is separated from the wastewater stream and conveyed into a fermentation tank and held a sufficient time to permit hydrolysis of suspended solids so as to produce soluble substrates. The soluble substrates are mixed with the return activated sludge and held for a selected time period to form conditioned return activated sludge. Thereafter, the conditioned return activated sludge is mixed in an initial aerobic treatment zone with pretreated wastewater. Thereafter, the mixed conditioned return activated sludge and pretreated wastewater is conveyed through a series of treatment zones, which may include at least one anoxic treatment zone, where phosphorus and other pollutants are removed from the wastewater.