The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with one or more internal bypass features incorporated into the tree box filter. The invention also provides methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

A photovoltaic evaporation and distillation system for the recycling of wastewater to potable water is disclosed herein. The system is comprised of six components that work in conjunction to produce both a source of reusable water for indoor appliances that produce greywater (or irrigation use), and potable water.

The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with one or more internal bypass features incorporated into the tree box filter. The invention also provides methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

A mobile microalgae harvesting apparatus is disclosed. In one embodiment the mobile microalgae harvesting apparatus includes a harvesting boom coupled to a harvesting vessel, where the harvesting boom skims a microalgae mixture of microalgae and water from a surface of a body of water down to a predetermined depth below the surface. In the embodiment, the mobile microalgae harvesting apparatus also includes a separator aboard the harvesting vessel that separates water from the microalgae mixture and a microalgae collector that collects microalgae from the separator, wherein the microalgae collector deposits the collected microalgae on a transfer vessel coupled to the harvesting vessel. A mobile microalgae harvester and a system for harvesting microalgae are also disclosed.

The invention relates to a clearing apparatus (I), especially for clearing and/or maintaining of filter basins (7), consisting of at least one carrier (1), at least one undercarriage (2), at least one removal device (3), at least one driving device (4) and at least one pushing or guiding device (10), wherein the removal device (3) is situated in the front and/or before the undercarriage (2) and/or in front of an axle (21) of the undercarriage (2) in the travel and/or removal direction (a), the pushing or guiding device (10) is provided at the rear in the travel and/or removal direction (a), and wherein the removal device (3) comprises a platform (32) on which a drivable or driven removal means is circulating, such as a drivable or driven flexible circulating chain (31) and/or a flexible circulating belt (31), in order to remove material from a bottom (71) of the filter basin (7), transport it away and/or dispose of it.

The invention relates to a clearing apparatus (I), especially for clearing and/or maintaining of filter basins (7), consisting of at least one carrier (1), at least one undercarriage (2), at least one removal device (3), at least one driving device (4) and at least one pushing or guiding device (10), wherein the removal device (3) is situated in the front and/or before the undercarriage (2) and/or in front of an axle (21) of the undercarriage (2) in the travel and/or removal direction (a), the pushing or guiding device (10) is provided at the rear in the travel and/or removal direction (a), and wherein the removal device (3) comprises a platform (32) on which a drivable or driven removal means is circulating, such as a drivable or driven flexible circulating chain (31) and/or a flexible circulating belt (31), in order to remove material from a bottom (71) of the filter basin (7), transport it away and/or dispose of it.

A sorter for sorting a mixture having at least a first material with a first density from a second material with a second density different than the first density, comprising a container adapted to receive the mixture, a bed forming a base of the container provided with a series of openings extending from a bottom of the base to a top of the base, a granular layer positioned on the bed, and an air supply line providing air to the openings. In operation, the mixture is positioned above the granular layer, and the air supply supplies air to the granular layer at a rate sufficient to allow the sorting of the first material into a separate portion of the container from the second material.

A photovoltaic evaporation and distillation system for the recycling of wastewater to potable water is disclosed herein. The system is comprised of six components that work in conjunction to produce both a source of reusable water for indoor appliances that produce greywater (or irrigation use), and potable water.

A mobile microalgae harvesting apparatus is disclosed. In one embodiment the mobile microalgae harvesting apparatus includes a harvesting boom coupled to a harvesting vessel, where the harvesting boom skims a microalgae mixture of microalgae and water from a surface of a body of water down to a predetermined depth below the surface. In the embodiment, the mobile microalgae harvesting apparatus also includes a separator aboard the harvesting vessel that separates water from the microalgae mixture and a microalgae collector that collects microalgae from the separator, wherein the microalgae collector deposits the collected microalgae on a transfer vessel coupled to the harvesting vessel. A mobile microalgae harvester and a system for harvesting microalgae are also disclosed.

A method of operating a filtration apparatus according to the present invention is a method of operating a filtration apparatus which includes one or more filtration modules provided with a plurality of hollow-fiber membranes arranged in parallel in one direction and a pair of holding members configured to fix both ends of the plurality of hollow-fiber membranes, and one or more cleaning modules configured to supply bubbles from below the filtration modules, the method including an operation step of carrying out a filtration treatment with the filtration modules, and a cleaning step of cleaning the filtration modules while stopping the filtration treatment with the filtration modules for 0.25 to 3 hours. The cleaning step is performed at intervals of 12 to 72 hours.