Systems and methods for producing and extracting a gas from a wastewater fluid including multiple sheets or layers that form a composite membrane. The composite membrane includes a sandwich structure in which a dry matrix layer is surrounded by a first layer including a first immobilized bacteria and a second layer including a second immobilized bacteria. The first immobilized bacteria and the second immobilized bacteria can be configured to produce a gas from one or more compounds in a wastewater fluid. The dry matrix layer can be configured to receive the gas from the first and second layers, and the gas can be extracted from the membrane. The hydrophobic coatings can be disposed between the dry matrix layer and one or both of the first and second layers. An adhesive interface can be disposed between the dry matrix layer and one or both of the first and second layers.

The present invention describes a hybrid device allowing for purification and either recycling of water or discarding of water, wherein said hybrid device comprises a recirculation loop which facilitates recirculation of water within said hybrid device, and also comprises: a filter system comprising at least one filter; at least one water quality sensor, a modified drain, which is adapted to collect the water used and to facilitate the stream of water used towards the recycling loop and filter system, so that water can be purified and recirculated, or towards drainage; a water treatment unit arranged for hygenisation of water; a functionality sensor for the water treatment unit; wherein the hybrid device is arranged so that: it can operate in a recirculation mode providing purification and recirculation of water, until the water passing through said hybrid device is at a maximum level of contaminants; when any of said sensors is indicating the need to do so, and in particular when said at least one water quality sensor indicates that the water is contaminated above said maximum level of contaminants, the same water is redirected from recirculation to drainage and is discarded from the hybrid device.

A flocculation washing machine comprises an outer barrel, a washing structure disposed inside the outer barrel and a circulating water treatment device disposed outside the outer barrel. The circulating water treatment device comprises a flocculation treatment unit for performing flocculation treatment on washing water; the flocculation treatment unit is communicated with the outer barrel through a filtering device, so that flocculation water after filtering treatment flows back to the outer barrel. And an overflow port is formed in the filtering device, and a flow sensor for detecting an overflow rate is arranged at the overflow port. A control method of the flocculation washing machine comprises: an overflow rate of the filtering device and/or a liquid level height in a flocculation container are detected in real time, and a blockage state of the filtering device is judged according to a relationship between a detection value and a preset value.

The present invention relates to methods for water treatment. in particular using a novel Thauera species that is capable of removing nitrogen via simultaneous nitrification and denitrification. The novel Thauera species may be further capable of phosphate accumulation in the cells. The invention also relates to an isolated Thauera sp. strain SND5 (accession number: CGMCC 21549). The invention further relates to reactors for use in carrying out the methods as described herein and bioprocesses that are carried out using said reactor.

A waste treatment system may include a liquid separator for removing water from solid waste, a mixing tank connected to the liquid separator for mixing the solid waste with an oxidizing agent, a heat exchanger connected to the mixing tank for collecting heat generated by an exothermic reaction caused by mixing the oxidizing agent with the solid waste, and a sanitizer connected to the liquid separator to sanitize the water removed from the solid waste. A waste treatment method may involve separating water from solid waste in a liquid separator, mixing the solid waste from the liquid separator with an oxidizing agent in a mixing tank connected to the liquid separator to cause an exothermic reaction, collecting heat from the exothermic reaction in a heat exchanger coupled with the mixing tank, and sanitizing the water from the liquid separator in a sanitizer.

Accessory for sanitation facilities, in particular intended for the treatment of a flow of discharge water coming from a sink or similar, comprising a housing which has an inlet region and an outlet region for the water flow couplable to the pipe which exits from the lower part of the sink, a filtering element having been provided in the interior of the housing to allow the passage of the flow and to retain small particles and an endless axis actuatable by way of the rotary actuation means, also having a storage container which is coupled and in communication with the interior of the housing, the storage container being located with respect to the endless axis. In this way, when the endless axis is actuated, the particles or residues accumulated in the filtering element are displaced towards the interior of the storage container.

A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55, 57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasibly engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.

A control method of a flocculation washing machine comprises: detecting an amount of washing water V and an amount of a detergent delivered m in a washing procedure to obtain a concentration of the detergent C=m/V; and determining a number of times N of flocculation circulation and a dose M.sub.n of a flocculant corresponding to each flocculation circulation according to the concentration of the detergent C. The number of times N of flocculation circulation and the dose M.sub.n of the flocculant corresponding to each flocculation circulation can be obtained accurately only based on one parameter. Besides, the flocculation treatment and the rinsing procedure of the washing machine are synchronously executed, and at an end node, the concentration of the detergent in the outer drum is lower than a set value, thereby achieving the purpose of removing detergent residual on clothes.

The invention relates to a method and system for recycling domestic greywater. Greywater is drawn from a greywater waste pipe through an overflow pipe of a sanitary fixture, thereby, permitting greywater to be collected for reuse without the need for complicated and expensive retrofitting and/or reconfiguration of existing plumbing infrastructure. The system and method of the present invention can easily operate independently or be integrated with domestic utility systems to supply these utility systems with grey-water.

An integrated component for supplying and treating water for a dishwashing machine having a washing tank includes a monolithic body of plastics material, within which an inlet conduit for water, a chamber containing substances with water-softening properties, into which the inlet conduit leads, a salt-containing reservoir arranged in the lowermost portion of the body and having a filler tube for loading the salt and to be connected to the washing tank, a compartment for blowing out vapours having an inlet opening to be connected to the washing tank and an outlet opening, an outlet conduit of water, a conduit for supplying water to the reservoir to produce the brine, and a conduit connecting the reservoir to the chamber are defined. The monolithic body has at least one protrusion, to which a sealing gasket is associated, for the direct connection within an opening of corresponding shape of the washing tank.