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When applied to the epilimnion, boats powered by an outboard motor are deployed onto a lake carrying aluminum sulfate. After determining the necessary dosage and location of the application, the aluminum sulfate is added to the surface of the lake near the wake of the outboard motor. This provides sufficient mixing of the aluminum sulfate ...
The most studied example of this phenomenon is in polyphosphate-accumulating bacteria (PAB) found in a type of wastewater processing known as enhanced biological phosphorus removal (EBPR), however phosphate hyperaccumulation has been found to occur in other conditions such as soil and marine environments, as well as in non-bacterial organisms ...
In biochemistry, dephosphorylation is the removal of a phosphate (PO 3− 4) group from an organic compound by hydrolysis. It is a reversible post-translational modification . Dephosphorylation and its counterpart, phosphorylation , activate and deactivate enzymes by detaching or attaching phosphoric esters and anhydrides .
Enhanced biological phosphorus removal (EBPR) is a sewage treatment configuration applied to activated sludge systems for the removal of phosphate. [ 1 ] The common element in EBPR implementations is the presence of an anaerobic tank ( nitrate and oxygen are absent) prior to the aeration tank.
Phosphoric acids produced from phosphate rock or thermal processes often requires purification. A common purification methods is liquid-liquid extraction, which involves the separation of phosphoric acids from water and other impurities using organic solvents, such as tributyl phosphate (TBP), methyl isobutyl ketone (MIBK), or n-octanol ...
However, there is a limit on the amount of phosphate which can be added to the environment due to the issue of eutrophication. [5] Phosphate is often adsorbed onto the surface of different type of minerals, for example iron containing minerals. Recent data suggest that bacteria growing under phosphorus starvation release iron-chelating molecules.
Boat prices vary depending on the model, make, size, features and condition. For instance, an 18- to 25-foot used pontoon can cost between $8,000 and $12,000 .
Deaerators are also used to remove dissolved gases from products such as food, personal care products, cosmetic products, chemicals, and pharmaceuticals to increase the dosing accuracy in the filling process, to increase product shelf stability, to prevent oxidative effects (e.g. discolouration, changes of smell or taste, rancidity), to alter ...