Abstract:
A plant for the abatement of pollutants in fumes and process water coming from a recycling unit of rubber residues, in particular EPDM (ethylene-propylene-diene polymer) vulcanized rubber, which comprises a treatment group of fumes composed of a suction hood (14) of fumes from an extruder (13) for the treatment of EPDM towards a washing tower (11, 11A) and a treatment and recovery group of process water consisting of a liquid ring vacuum pump (50) for feeding a mixture of water and gas leaving the extruder (13) towards a separator tank (51) in order to separate water and gas, wherein the washing tower of the scrubber-Venturi type envisages the provision of a Venturi water jet (15) fed by an atomizing pump (16) with water coming from a tank (17), a subgroup (28, 35) of the plant being connected to the tank (17), suitable for purifying the water with separation of the solid phase, and wherein the separator tank (51) is connected to a collection tank (53), in turn connected to a liquid ring vacuum pump (50) and to the tank (17), a dosage pump (18) of hydrogen peroxide also being associated with the tank (17), an accumulation tank (25) being envisaged, connected directly to the subgroup of the plant, suitable for purification, and also to the tank (17) associated with the washing tower, creating a continuous and closed water purification cycle.
Abstract:
A method of producing hydraulic fracturing fluid from wastewater obtained during the shale gas extraction is disclosed wherein H 2 O 2 is added to the flowback water which is then mixed until the redox potential of 700-720 mV is achieved; then the 5% Ca(OH) 2 suspension in 10% solution of NaCO 3 is added and intensively mixed to obtain pH of 11.15 ± 0.15, the precipitate is then separated by a known method, most preferably by means of a centrifuge.
Abstract translation:公开了一种由页岩气提取期间获得的废水产生水力压裂液的方法,其中将H 2 O 2加入回流水中,然后将其混合直至实现700-720mV的氧化还原电位; 然后加入在10%NaCO 3溶液中的5%Ca(OH)2悬浮液并强烈混合以获得11.15±0.15的pH值,然后通过已知方法分离沉淀物,最优选通过离心分离。
Abstract:
This invention is directed to a method, system and apparatus (10) for the treatment fluids. An apparatus (10) for the treatment of a fluid comprises a fluid chamber (16) and at least one ultraviolet light unit (12, 13) arranged at a periphery of the fluid chamber (16). The at least one ultraviolet light unit (12, 13) comprises at least one ultraviolet light emitting diode (13) and an ultraviolet light directing element (12). The ultraviolet light directing element (12) is configured to collimate at least a portion of the light emitted from the at least one ultraviolet light emitting diode (13) in use such that the ultraviolet light rays emitted from each ultraviolet light unit (12, 13) are parallel in a first plane. Also described is a method for the cooling a light emitting diode in a fluid treatment system.
Abstract:
A UV photo-oxidation system for a contaminated fluid is described comprising: a cylindrical housing (102), for receiving a flow of a contaminated fluid, said housing (102) comprising a fluid inlet (106) and a fluid outlet (104); one or more tubular UV light sources (108) mounted in said housing (102); and, one or more hydrodynamic mixer elements (110) for turbulent mixing of a UV-activatable oxidation agent with the contaminants in the fluid during exposure of the mixture to said UV light.
Abstract:
A low cost apparatus for treating water, which will be used in an industrial process, is provided. An apparatus of the invention generally includes at least one feeding line (7), at least one containing means (8), at least one coordination means (1), at least one chemical application means (4), at least one mobile suction means (5), at least one propelling means (6), and at least one filtration means (3). The coordination means (1) can control the necessary processes depending on the apparatus needs (e.g., water quality or purity). The apparatus of the invention purifies the water and eliminates suspended solids without the need of filtering the totality of the water volume, but only filtering a small fraction of up to 200 times less than the flow filtered by a conventional water treatment filtration system.
Abstract:
Disclosed herein are embodiments of a system for treating water. The system comprises a biochar inlet, and optionally a metal salt inlet, ozone inlet, organic carbon compound inlet or any combination thereof. The biochar may be produced by biomass pyrolysis and the pyrolysis may be coupled to energy generation. The system also comprises a filtration device, such as a reactive filtration device. The system produces a treated water stream and a reject stream, which may be further separated into a recycled water stream and a solid product. The solid product may be suitable as a soil amendment for application to agricultural land, or for recycling. A method for using the system to treat water also is disclosed.
Abstract:
A new method for generating micro-nano bubbles that uses water hammering, a bubble generating nozzle, and an apparatus for generating micro-nano bubbles are provided to construct a system. The system is for generating micro-nano bubbles in a large amount using only pure water, which does not include any nucleating agents, and for performing not only a clean washing and sterilization but also generation of uncontaminated micro-nano bubbles. The method defined in the present invention uses water hammering power produced by a mutual collision of jets of dissolved-gas-including solution squirted from two or more spouts. The bubble generating nozzle by the present invention has a configuration, comprising: a hollow cylinder having two or more small through-holes arrayed in the circumferential direction thereof and a micro-nano bubble discharge port provided on the both ends of the hollow cylinder, wherein the small through-holes are arranged so that all of their extension lines passing through respective center of the cross-section of each of the small through-holes intersect each other in the inside of the hollow of the cylinder. The apparatus for generating bubble by the present invention has such bubble generating nozzle and has a configuration that enables generation of micro-nano bubbles in a large amount.