An improved liquid run-off disposal system is described having an infiltration chamber 72 with first and second sidewalls 74. In cross-sectional view the first and second sidewalls 74 each include an inner surface 76 and outer surface 78, and each sidewall 74 includes a plurality of integrated louvre-shaped apertures 80. In cross-sectional view each louvre-shaped aperture 80 includes an upper surface 82 and a lower surface 84 which are angled upwards from the outer surface 78 and protrude inwards from the inner surface 76 into the interior of the infiltration chamber 72. The upper and lower surfaces 82, 84 comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture 80. The angled sections of the upper and lower surfaces 82, 84 are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction. The overlapping region “Y.sub.1” ensures that the apertures 80 will admit the exit of water but substantially inhibit the entry of soil wherein, in use, when liquid run-off is piped into the infiltration chamber 72 it can drain away through the apertures 80 and into the surrounding soil.

An improved liquid run-off disposal system is described having an infiltration chamber 72 with first and second sidewalls 74. In cross-sectional view the first and second sidewalls 74 each include an inner surface 76 and outer surface 78, and each sidewall 74 includes a plurality of integrated louvre-shaped apertures 80. In cross-sectional view each louvre-shaped aperture 80 includes an upper surface 82 and a lower surface 84 which are angled upwards from the outer surface 78 and protrude inwards from the inner surface 76 into the interior of the infiltration chamber 72. The upper and lower surfaces 82, 84 comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture 80. The angled sections of the upper and lower surfaces 82, 84 are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction. The overlapping region “Y.sub.1” ensures that the apertures 80 will admit the exit of water but substantially inhibit the entry of soil wherein, in use, when liquid run-off is piped into the infiltration chamber 72 it can drain away through the apertures 80 and into the surrounding soil.

The present invention relates to a method of draining water comprising the steps of: providing a water drainage device, wherein the water drainage device comprises man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition; positioning the water drainage device in contact with the ground, wherein the water drainage device absorbs water and releases water to a recipient wherein the aqueous binder composition prior to curing comprises; a component (i) in form of one or more oxidized lignins; a component (ii) in form of one or more cross-linkers.

The present invention relates to a method of draining water comprising the steps of: providing a water drainage device, wherein the water drainage device comprises man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition; positioning the water drainage device in contact with the ground, wherein the water drainage device absorbs water and releases water to a recipient wherein the aqueous binder composition prior to curing comprises; a component (i) in form of one or more oxidized lignins; a component (ii) in form of one or more cross-linkers.

A process and associated system for the improved reclamation of disturbed lands (e.g., mined lands) is disclosed. In particular, the system including a dewatering cyclone, a screw classifier, and a dewatering apparatus (e.g. a dewatering belt) arranged in series to enable rapid and cost effective dewatering of slurries containing dilute clay and sand tailings to create an improved engineered reclamation material (ERM). The ERM formed by the controlled combining of dewatered sand tailings with dilute clay slurry and with a flocculant and overburden. The ratio of clay:sand:overburden of the ERM may be achieved by balancing the solid content (Cw) and water content (1-Cw) materials of the clay slurry, sand tailings and overburden. In some embodiments, the system may include at least one additional component, such as, for example, static screen(s), centrifuge(s), vibrating screens, drum screens, belt screens, belt filters, and/or other liquid-solid separation devices.

The instant invention relates to methods for increasing or promoting microbial activity in soil selected for treatment.

The instant invention relates to methods for increasing or promoting microbial activity in soil selected for treatment.

A subsurface sewage is provided and includes a plurality of leaching members oriented substantially vertically. A first volume defined within each of the plurality of the leaching members forms a void therein and includes a periphery, a top face that defines a first substantially horizontal plane, and a bottom face that defines a second substantially horizontal plane. A permeable enclosure is wrapped substantially around the periphery of each leaching member and a system frame maintains a location and a position of the plurality of the leaching members. A filter media is disposed in a second volume defined between at least two of the plurality of the leaching members. A leaching member balancing pipe is configured to hydraulically connect at least one of the plurality of the leaching members to at least one other of the plurality of the leaching members. A distribution pipe is configured to hydraulically connect at least one of the plurality of the leaching members to a source of an effluent flow.

A drainage system (1300) comprising a cap (1302) having one or more sidewalls defining a recess (1326) and a body (1304). The body (1304) comprises an inlet at a first end (1312) of the body (1304), receivable within the recess (1326) of the cap (1302), an outlet at a second end (1384) of the body (1304), and a passage (1310) to allow fluid flow from the inlet to the outlet. The system (1300) further comprises a spacer arrangement (1306) to space the body (1304) from the cap (1302) when the inlet is received in the recess (1326) of the cap (1302), so as to form a channel to allow fluid flow to the inlet between an outer surface of the body (1304) and an inner surface of the cap (1302).

A drainage system (1300) comprising a cap (1302) having one or more sidewalls defining a recess (1326) and a body (1304). The body (1304) comprises an inlet at a first end (1312) of the body (1304), receivable within the recess (1326) of the cap (1302), an outlet at a second end (1384) of the body (1304), and a passage (1310) to allow fluid flow from the inlet to the outlet. The system (1300) further comprises a spacer arrangement (1306) to space the body (1304) from the cap (1302) when the inlet is received in the recess (1326) of the cap (1302), so as to form a channel to allow fluid flow to the inlet between an outer surface of the body (1304) and an inner surface of the cap (1302).