US 2016/0244351 A1 · SLUDGE DRYING BEDS

Abstract

A sludge drying bed for effective separation or decanting of water from sludge and the storage of treated sludge comprising of a sloping floor (6,7) to drain the water towards the sluice door (2) located in the front wall, two side-walls and a valve controlled filler inlet pipe (9) at the back wall where the sludge enters the bed. The sludge drying bed is covered by an openable pitched roof utilising a breathable, waterproof, black membrane as roof material for ventilation, heat absorption and surface water runoff. The sluice door (2) contains alternating plates to facilitate the filling of the sludge drying beds and the decanting of the water at multiple levels within the sludge, with a sump (3) located at the front wall to facilitate the efficient removal of the dried sludge from the beds. A telescopic handle, sludge drying bed cleaning tool is provided to facilitate the cleaning and maintenance of the sludge drying bed. The sludge drying beds are modular in design.

Claims5

Dependent claims

A sludge drying bed comprising:

(a) a floor which slopes downwards from the back wall to the front wall along the longitudinal axis of the bed and inwards from each of the side walls to a trough line centred along said longitudinal axis of the sludge drying bed,
(b) a front wall, a back wall and two sidewalls,
(c) an openable roof comprising of a breathable, waterproof, black membrane cover fixed in two pitched frames pitched frames each frame sloping downwards towards the side walls or sloping towards the front and back wall,
(d) means for introducing sludge into the sludge drying bed, comprising of valve controlled inlet pipe,
(e) means for allowing the discharge of water from the sludge comprising a sluice door located in the front wall of the bed, containing slots for three interchangeable sluice door plates comprising of one solid blanking plate used when filling the bed and settling the sludge and the remaining two drainage plates each containing ten horizontal slots;
and
(f) a sump in the floor of the sludge drying bed to the front of the sluice door.

4 more elements

Dependencies are inferred from the claim text.

Sludge drying beds

Life of this patent

Sludge drying beds

Life of this patent

Abstract

Claims5