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Station for complex water treatment SKO-10K. One of the first steps in most conventional water purification processes is the addition of chemicals to assist in the removal of particles suspended in water. Particles can be inorganic such as clay and silt or organic such as algae, bacteria, viruses, protozoa and natural organic matter.
In the case of a water softener, the cation exchange resin is exchanging sodium (the Na + ion of NaCl) for hardness minerals such as calcium and magnesium. A dealkalizer contains strong base anion exchange resin that exchanges chloride (the Cl – ion of the NaCl) for carbonate (CO − 3), bicarbonate (H C O − 3) and sulfate (SO 2− 4). As ...
The systematic name of this enzyme is 2-phospho-D-glycerate hydro-lyase (phosphoenolpyruvate-forming). The reaction is reversible, depending on environmental concentrations of substrates. [3] The optimum pH for the human enzyme is 6.5. [4] Enolase is present in all tissues and organisms capable of glycolysis or fermentation.
Arginase (EC 3.5.3.1, arginine amidinase, canavanase, L-arginase, arginine transamidinase) is a manganese-containing enzyme. The reaction catalyzed by this enzyme is: arginine + H 2 O → ornithine + urea. It is the final enzyme of the urea cycle. It is ubiquitous to all domains of life.
The chlorophyllase enzyme is a smart choice as the rate limiting enzyme of the catabolic pathway since degreening and the expression of chlorophyllase is induced in ethylene-treated Citrus. Recent data, however, suggests that chlorophyllase is expressed at low levels during natural fruit development, when chlorophyll catabolism usually takes place.
The substrate is coordinated to the zinc and this enzyme has two zinc atoms per subunit. One is the active site, which is involved in catalysis. In the active site, the ligands are Cys-46, Cys-174, His-67, and one water molecule. The other subunit is involved with structure. In this mechanism, the hydride from the alcohol goes to NAD +. Crystal ...
It is a common observation that when oil and water are poured into the same container, they separate into two phases or layers, because they are immiscible.In general, aqueous (or water-based) solutions, being polar, are immiscible with non-polar organic solvents (cooking oil, chloroform, toluene, hexane etc.) and form a two-phase system.
This puts a strain on the buffering capacity of the water or a pH value shift may occur, which impairs the process. b) Denitrification: Reduction of nitrate nitrogen to molecular nitrogen, which escapes from the wastewater into the atmosphere. This step can be carried out by microorganisms commonly found in sewage treatment plants.