A method of unloading a modular home from a trailer includes extending a plurality of linear actuators coupled to overhanging portions of a modular home positioned on a bed of a trailer until the linear actuators lift the modular home off of the trailer, sending instructions to one or more crawlers to move under the modular home, retracting the linear actuators to lower the modular home such that a lower surface of the modular home rests on a platform positioned on each of the crawlers, sending instructions to the crawlers to move the modular home to an installation location, extending the linear actuators until the linear actuators lift the modular home off of the crawlers, sending instructions to the crawlers to move out from under the modular home, and retracting the linear actuators to lower the modular home to an installed height.

A method and plant for hydrolysis of a liquid substrate, having a dry solids content of between 2 and 30%, to be used in an anaerobic fermentation, digestion or another process aimed at producing or extracting methane or other valuable substances, which method and plant relies on the use of vacuum and several pulpers and one or several flashtanks in series for step-wise pre-heating and pressure reduction, respectively.

A method of unloading a modular home from a trailer includes positioning a modular home on a trailer bed. The modular home includes a first housing portion having a first vertical edge coupled to a second vertical edge of a second housing portion by a hinge, and the first and second housing portions are arranged longitudinally on the trailer. The method further includes rotating the first and second housing portions about the hinge such that the first and second housing portions overhang from the sides of the bed, forming first and second overhanging portions. The method further includes coupling at least one of (1) a first horizontal edge of the first housing portion to a second horizontal edge of the second housing portion, or (2) a third vertical edge of the first housing portion to a fourth vertical edge of the second housing portion upon completion of the rotating.

Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.

The present invention provides a device and method for sulphur cycle-based advanced denitrification of wastewater coupling autotrophic denitrification and heterotrophic denitrification, and belongs to the technical field of wastewater treatment. The unit generating hydrogen sulfide during the wastewater treatment process adopts a lye to absorb hydrogen sulfide; the absorbed sulfide is introduced into an anoxic tank that removes nitrate nitrogen through sulfur-based autotrophic denitrification; and the remaining organic matters in the anaerobic methane-producing reaction tank are subjected to heterotrophic denitrification in the anoxic tank, and the anoxic unit combines the sulfur-based autotrophic denitrification with the heterotrophic denitrification of organic matters. The coupling of sulfur-based autotrophic denitrification and heterotrophic denitrification strengthens the removal of nitrate nitrogen. The biogas desulfurization process system only absorbs hydrogen sulfide and uses the absorbed sulfide in an anoxic system to realize the recovery and utilization of sulfur.

A vertical motion mixer has a drive mechanism with two axes of guidance for vertical motion. A reciprocating yoke is fixedly secured to the driving shaft for the mixer, without any guide bearing for the mixer driving shaft. The mixer drive unit is of compact and simplified design with minimal moving parts, and including drive gearing with planetary gears to minimize wear during reciprocating movement.

Auger cleaned inaccessible floor systems to maximize operational capacity of inaccessible floors. The auger cleaned inaccessible floor system includes a floor having at least one channel beneath the lowest point of the floor extending horizontally at least half the length of the longest dimension of the floor and adapted for receiving an auger cleaner, at least one gate complex that provides fluid communication between the channel and at least one box and further provides access to the floor for the auger cleaner, and at least one box to deliver the auger cleaner to the channel and adapted for equalizing pressure when the inaccessible floor is under water to deliver an auger cleaner for cleaning. Thus, the auger cleaned inaccessible floor system allows cleaning of the inaccessible floor while the inaccessible floor system is in operation increasing the yield from the inaccessible floor system.

Auger cleaned inaccessible floor systems to maximize operational capacity of inaccessible floors. The auger cleaned inaccessible floor system includes a floor having at least one channel beneath the lowest point of the floor extending horizontally at least half the length of the longest dimension of the floor and adapted for receiving an auger cleaner, at least one gate complex that provides fluid communication between the channel and at least one box and further provides access to the floor for the auger cleaner, and at least one box to deliver the auger cleaner to the channel and adapted for equalizing pressure when the inaccessible floor is under water to deliver an auger cleaner for cleaning. Thus, the auger cleaned inaccessible floor system allows cleaning of the inaccessible floor while the inaccessible floor system is in operation increasing the yield from the inaccessible floor system.

Process for treating an aqueous fluid whereby a biogas is produced in an installation comprising a bioreactor and a separate container, the process comprising (i) a bioreactor feeding stage; (ii) a batch reaction stage, wherein biogas is formed and formed biogas is temporarily stored in the separate container, and at least one further stage (iii) comprising a settling stage and/or an aqueous fluid effluent discharge stage, wherein the biogas stored in the separate container is used to reduce fluctuations in a biogas exit flow from the installation. An installation for carrying out the process and the use thereof.

Processes and system are provided for digesting biosolids in a multistage digestion system. The processes and system are well suited for producing Class A biosolids and biogas containing a high content of methane. Methods and systems are also provided for recovery of phosphorus from wastewater and biosolids.