An attachment configured to be captured and lifted by a bucket of a vehicle includes a back end proximate the bucket, in operation; a left side; a right side; a front end distal from the bucket, the front end defining a bottom surface; connection means for receiving a forward edge of the bucket, wherein the bucket can engage and lift the attachment; and means defining a material handling area between the left side, right side, front end, and back end, the material handling area including apertures for sifting, wherein material rolls up into the material handling area when the attachment moves forward so that material can be sifted in the sifting area.

An attachment configured to be captured and lifted by a bucket of a vehicle includes a back end proximate the bucket, in operation; a left side; a right side; a front end distal from the bucket, the front end defining a bottom surface; connection means for receiving a forward edge of the bucket, wherein the bucket can engage and lift the attachment; and means defining a material handling area between the left side, right side, front end, and back end, the material handling area including apertures for sifting, wherein material rolls up into the material handling area when the attachment moves forward so that material can be sifted in the sifting area.

An integrated tank has a debris-storage chamber, a water-storage chamber, and a muffler system. The muffler system is disposed proximate the water-storage chamber. The muffler system includes a bypass muffler and a discharge muffler.

An integrated tank has a debris-storage chamber, a water-storage chamber, and a muffler system. The muffler system is disposed proximate the water-storage chamber. The muffler system includes a bypass muffler and a discharge muffler.

The present disclosure relates to a method for separation of solid particles from a waterbody. Preferably, the present disclosure relates to a method, wherein a combination of chemicals including coagulant(s) and flocculant(s) are employed for said separation of solid particles, wherein suitable examples of solid particles are living organisms and non-living matter, wherein living organisms include autotrophs such as phototrophs, which are either microscopic or macroscopic in nature (algae). The disclosure thus particularly relates to method of chemical coagulation and flocculation for separating solid particles, preferably either algae or bacteria or both from a waterbody. The present disclosure also provides for an alternate method, wherein the aforesaid method of coagulation and flocculation is combined with electro-coagulation and/or pH modulation strategies for separation of said solid particles in any sequence.

The system extracts water from lunar regolith and includes a regolith intake having a digging bucket that collects lunar regolith soil and a gravel separator that separates and discharges gravel and passes a mixture of ice-regolith powder having ice grains that are about 10-100 microns along the conveyor. A pneumatic separator receives the ice-regolith powder and pneumatically splits the ice-regolith powder into streams of different sized lithic fragments and ice particles per the ratio of inertial force and aerodynamic drag force of the lithic fragments and ice particles. Each split stream may include a magnetic separator that separates further the magnetic and paramagnetic lithic fragments from ice particles to discharge up to 80 percent of lithic fragments to slag.

Mixing systems that include a mixer housing and one or more disk assemblies for mixing and processing materials is disclosed. The disks rotate to mix an additive into the material and to carry agglomerated solids toward a discharge of the mixing system. The disks may have a plurality of fingers or lobes which extend from a central portion of the disks.

A portable waste treatment apparatus for treating hydro-excavation waste includes an elongate frame formed from separable upper and lower frame sections mounted upon one another. The upper frame section houses a mixing tank for receiving waste slurry and for mixing the waste slurry with flocculating and/or coagulating agents. A thickener tank receives waste slurry from the mixing tank, and a dewatering device is provided for dewatering sludge collected in the thickener tank. The lower frame section houses a buffer tank arranged to receive sludge from a sludge outlet of the thickener tank. A pump is provided for pumping the sludge to the dewatering device, and a water tank is arranged to receive water overflowing from the thickener tank.

A dredge head assembly is disclosed. The assembly includes: a shroud having a generally open bottom end and a top end; a screen structure covering the generally open bottom end of the shroud; a suction pipe with a first end connected to the top end of the shroud and a second end configured to be operatively connected with a pump which induces suction; a handle connected to and extending from the shroud and having at least one grasping portion; and one or more vacuum relief valve assemblies, each comprising a valve, at least one opening configured to be in communication with water, and an actuation mechanism positioned to be accessible to a diver. Dredging systems and methods of dredging are also disclosed.

A dredge head assembly is disclosed. The assembly includes: a shroud having a generally open bottom end and a top end; a screen structure covering the generally open bottom end of the shroud; a suction pipe with a first end connected to the top end of the shroud and a second end configured to be operatively connected with a pump which induces suction; a handle connected to and extending from the shroud and having at least one grasping portion; and one or more vacuum relief valve assemblies, each comprising a valve, at least one opening configured to be in communication with water, and an actuation mechanism positioned to be accessible to a diver. Dredging systems and methods of dredging are also disclosed.