摘要:
According to an aspect of the invention there is provided a water treatment system for treating water for use in a hydroponic plant cultivating system which includes a filter for filtering unwanted particles, an anti-scaling mechanism to inhibit scaling and precipitation of insoluble solids on the filter, a coagulator for coagulating at least minerals and heavy metals contained in the water, an oxidation-reduction controller for measuring and controlling oxidation-reduction potential of the water, a Ph controller for measuring and controlling the Ph value of the water, a carbon dioxide enriching apparatus for enriching the water with carbonic acid, a de-clustering mechanism for de-clustering water molecules of the water; and an aerator for increasing the level of dissolved oxygen in the water.
摘要:
The invention provides a bound sulfided metal containing metals such as nickel, cobalt, iron or manganese or zinc for removing selenocyanate from aqueous streams. The binder may be alumina, silica, clay or metal oxide. The amount of sulfur in the bound sulfided metal may range from 5-75% by weight. In one embodiment, the bound sulfided metal is formed and reduced and placed in a column system that comprises one or more columns and may comprise a Lead-Lag1-Lag2-Polisher series of columns.
摘要:
Die Erfindung betrifft ein Verfahren zum Aufbereiten von Wasser aus Vergasungsprozessen, bei oder nach welchen Vergasungsprozessen Rohgas (G1) in den Prozessschritten oder Anlagenkomponenten Rohgaswäsche (1), Gaskühlung (3) und/oder Sauergasentfernung (4) behandelt und danach als Synthesegas (G4) bereitgestellt wird, wobei ein Wasserstrom (W1) aus der Rohgaswäsche sowie ein Prozessfluidstrom (W3, W4) aus der Gaskühlung oder Sauergasentfernung behandelt werden, wobei der Wasserstrom (W1; W14) getrennt vom Prozessfluidstrom behandelt wird, indem das Prozessfluid einer vom Wasserstrom (W14) separaten Strippung (12; 112; 212) unterzogen wird. Ferner betrifft die Erfindung eine Wasserbehandlungsvorrichtung (10; 100; 200) zum Behandeln von Wasser (W1; W14) aus Vergasungsprozessen.
摘要:
The present application provides a waste water preconditioning system for limiting mercury concentrations in a waste water stream resulting from treatment of a flue gas. The waste water preconditioning system may include a wet flue gas desulfurization system for treating the flue gas with an aqueous alkaline slurry, a sulfite detector to determine the concentration of sulfite in the aqueous alkaline slurry, and to produce the waste water stream with a mercury concentration of less than about five micrograms per liter. The waste water preconditioning system also may include a waste water treatment system downstream of the wet flue gas desulfurization system.
摘要:
A wastewater treatment system includes a circulating fluidized bed evaporator defining a longitudinal axis vertical with respect to gravity. The evaporator has a wastewater inlet to provide wastewater to the circulating fluidized bed evaporator. A heat inlet is axially below the wastewater inlet to provide heat to the circulating fluidized bed evaporator for evaporating the wastewater. An outlet is axially above the wastewater inlet and the heat inlet.
摘要:
Die Erfindung betrifft ein Verfahren zur Behandlung von organische Verbindungen enthaltendem Industrieabwasser, wobei das Industrieabwasser einer biologischen Reinigung (4, 8) unterzogen wird, bei der in dem Industrieabwasser enthaltene Verunreinigungen durch Bakterien zersetzt werden, und wobei nachfolgend aus dem biologisch zumindest teilweise gereinigten Abwasserschlamm unter Einsatz zumindest einer Membrantrennanlage (6, 10, 12, 15) abgetrennt wird. Erfindungsgemäß wird das aus der Membrantrennanlage (6, 10, 12, 15) abgezogene Permeat nicht als gereinigtes Wasser abgeleitet und in flüssiger Form an die Umgebung abgegeben, sondern einer stofflichen Nutzung zugeführt, wodurch eine abwasserfreie Verfahrensführung erfolgt, wobei das aus der Membrantrennanlage (6, 10, 12, 15) abgezogene Permeat zumindest teilweise einem Metallerzeugnis- und/oder Metallverarbeitungsprozess zugeführt wird und zur Kühlung von Schlacke eingesetzt wird, wobei zumindest ein Teil der in dem Permeat enthaltenen Reststoffe nach der Kühlung auf der Schlacke verbleiben.
摘要:
Configurations and related processing schemes of direct or indirect (or both) intra-plants and thermally coupled heating systems synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of direct or indirect (or both) intra-plants and thermally coupled heating systems synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.
摘要:
Embodiments provide methods and structures for purification or volume reduction of a brine by an advanced vacuum distillation process (AVMD) to achieve higher flux by passage of vapors through an AVMD distillation unit. In one example, brine is circulated in a tank. The tank may include one or more membrane pouches that are submerged in the circulating brine or placed above the water level of the hot circulating brine. In other embodiments the membrane pouches are outside of the tank that includes the hot circulating brine but still in communication with it. The circulating brine is heated, allowing creation of water vapor. Using a vacuum, the water vapor is drawn through the membrane, where it may be condensed and subjected to further beneficial use. This process can concentrate to levels to generate crystals or solids, which can be separated and utilized.
摘要:
Activated iron media and methods for generating and usmg the activated iron media. The method involves aqueous suspension comprising a zero-valent iron, ferrous iron, and an iron oxide to provide a settled solid and re-suspending the settled solid to provide an aqueous suspension containing an activated iron media.
摘要:
A hybrid activated iron-biological treatment system and method for treating wastewater. The treatment system includes a combination of zero valent iron, ferrous iron, an iron oxide, and a denitrification microorganism.