Abstract: Apparatus for treating liquid by contact with a particulate adsorbent material comprises a regeneration chamber (10) within a reservoir (2) for liquid to be treated. Adsorbent material is recycled along a path including passage through the regeneration chamber (10) and in a body of liquid in the reservoir to contact and treat the liquid. The adsorbent material is capable of regeneration, and the regeneration chamber (10) is defined between two electrodes (36, 38), which can be coupled to a source of electrical power. The treatment process can be continuous with liquid flowing through the reservoir while the adsorbent material is recycled and regenerated. Alternatively, individual quantities of liquid may be treated on a batch basis. A plurality of regeneration chambers may be arranged within a common reservoir, such as in a bank of chambers aligned along an axis thereof.

Abstract: An adsorbent particulate product for treating contaminated fluid and capable of electrochemical regeneration. The product includes unexpanded intercalated graphite in particulate form, in the form of flakes or in powder form.

Abstract: Apparatus for treating liquid by contact with a particulate adsorbent material comprises a regeneration chamber (10) within a reservoir (2) for liquid to be treated. Adsorbent material is recycled along a path including passage through the regeneration chamber (10) and in a body of liquid in the reservoir to contact and treat the liquid. The adsorbent material is capable of regeneration, and the regeneration chamber (10) is defined between two electrodes (36, 38), which can be coupled to a source of electrical power. The treatment process can be continuous with liquid flowing through the reservoir while the adsorbent material is recycled and regenerated. Alternatively, individual quantities of liquid may be treated on a batch basis. A plurality of regeneration chambers may be arranged within a common reservoir, such as in a bank of chambers aligned along an axis thereof.

Abstract: The invention provides a tundish comprising a casing having a floor, including an impact area, and upstanding sidewalls, the casing having a permanent refractory lining, and at least one expendable beam of refractory heat insulating material extending between opposite sides of the casing adjacent the impact area. Generally the refractory heat insulating material is one comprising a major proportion of particulate refractory, a minor proportion of fibrous material and an organic binder. In the tundish there may be two pairs of said beams to bridge opposite sides of the casing, one pair being located at the sides of the impact area in or on the floor of the casing and the other vertically above the first, adjacent the top of each sidewall.