摘要:
It has been discovered that a mechanical flotation system having only two cells can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operating costs, as well as be resistant to floating oil recovery platform wave effects. The dual-cell mechanical flotation system has, in sequential order, an inlet chamber (16) and two gasification chambers or cells (18,20), each with at least one gas ingestion and mixing mechanism (32), and a discharge chamber (24). A common primary skim collection channel (40) atop the partition diving the gasification chambers (18,20) efficiently channels away the bulk of the floating collected matter. At least one baffle depending from the top of the vessel near the primary skim collection (40) channel helps dampen the action of the fluid containing the suspended matter when the vessel is affected by wave motion against the floating oil production platform. A flow control valve (28) for controlling the liquid level in the gasification chambers (18,20) and/or a flow control valve (36) for controlling the liquid level in the discharge chamber (24).
摘要:
The invention relates to a method for the oxidative treatment of aqueous liquids by means of oxidation agents. According to said method, the aqueous liquid is guided through an electrolysis reactor in which highly aggressive oxidation agents (OH-, O3, H2O2) are produced during the electrochemical decomposition of the water. Dirty and/or murky water constitutes the aqueous liquid which is freed from coarse materials and mechanically ground before being supplied to the electrolysis reactor. Gaseous parts are released and inorganic residual constituents are filtered out. The remaining residual liquid consisting essentially of water can be supplied to a fresh water, service water and/or rinse water system.
摘要:
System for treating sewage on board sea craft (11) comprising: a treatment tank (12) fed by a sewage transfer pump (14), a structural holding tank installed on board (27) containing the sewage to be treated, a sea water transfer pump (16), a metering pump (18) for a sterilising compound contained in a separated tank (29), a macerating and recirculation pump (19) with a three-way valve (21) and a pipe for discharge into the sea (23). To the treatment tank (12) are also associated at least two level sensors (24, 25, 26) and an electric control panel with liquid crystal display and touch keyboard, controlled by a microprocessor (28) for system operation and control.
摘要:
The invention concerns a sea water desalination system comprising a reverse osmosis cell (12) containing a semi-permeable membrane for performing desalination of the water by passing sea water under pressure through the membrane, a pump (20) for forcing the pressurised sea water through said membrane and a mechanism driving the pump shaft comprising a direct current motor (22) and an alternating current motor (24), the two motors being mounted in position driving the pump shaft with a belt, and also comprising clutch means for preventing one of the motors from being driven in rotation while the other motor is activated and drives the pump shaft in rotation.
摘要:
Provided is a water recovery system having a simple structure which is capable of treating water to be treated in a confined space such as a nuclear shelter or a space station. The wastewater treatment system includes a cation-exchange device 1 in which water to be treated, such as wastewater originating in a space station or the like, water discharged by the human body, water produced by condensing water vapor contained in the air, is directly introduced to a cation-exchange resin and thereby treated by cation exchange; a diamond-electrode electrolysis device 2 in which organic substances, urea, and other nitrogen compounds contained in water discharged from the cation-exchange device 1 are decomposed; a catalytic decomposition device 3 in which the residual organic component is brought into contact with a catalyst to be decomposed; an electrodialysis device 4 in which water discharged from the catalytic decomposition device 3 is treated by electrodialysis to produce desalted water as well as an acid and an alkali; and a mineral adding device 5 in which a mineral is added to the desalted water.
摘要:
The invention provides an anti-fouling lighting system (1) configured for preventing or reducing biofouling on a fouling surface (1201) of an object (1200) that during use is at least temporarily exposed to a liquid, by providing an anti-fouling light (211) to said fouling surface (1201), the anti-fouling lighting system (1) comprising: —a lighting module (200) comprising a light source (210) configured to generate an anti-fouling light (211); and —an energy system (500) configured to locally harvest energy and configured to provide electrical power to said light lighting module (200), wherein the energy system (500) comprises (i) a sacrificial electrode (510), and (ii) a second energy system electrode (520), wherein the energy system (500) is configured to provide electrical power to the lighting module (200) when the sacrificial electrode (510) and the second energy system electrode (520) are in electrical contact with the liquid.
摘要:
A plant for the treatment of waste water on board of vessels having a collection tank of black water and grey water, a primary treatment unit including a band filter, a secondary treatment unit including a micro-filtration or ultra-filtration module and a tertiary treatment unit including an ozone treatment module is provided.