Continuous process for reducing the chemical oxygen demand (COD) of waste water from the paper industry comprises treating the water with hydrogen peroxide, adding a freshly prepared aqueous solution of iron(II) sulfate, iron(II) chloride, manganese(II) chloride and calcium chloride, adjusting the...
Water containing hydrogen peroxide is supplied to a trough (3) positioned at the top of the container (1), and flows downward through the activated carbon bed (2) due to gravity, thereby causing the hydrogen peroxide to break down. The water containing hydrogen peroxide flows downward through ...
water after terminating a filter stage with hydrogen peroxide in a predetermined concentration, supplying the mixture to a catalyst arrangement, and treating the water with chlorine, sodium hypochlorite, chlorine dioxide and/or other chlorine disinfectants or hydrogen peroxide and/or with UV-radiation. ...
Treating phosphine containing gases with aqueous solution of silver oxidation catalyst, hydrogen peroxide, silver metal reoxidation co-catalyst(which chelates with hydrogen peroxide) and oxidation resistant aciddoi:US5527517 AA main aspect of this invention is the provision of a liquid medium for ...
For this purpose, all samples except effluent water were first pre-oxidized by adding 50 % hydrogen peroxide (H2O2). The amount of H2O2 needed depended on the organic content of the samples. Pre-oxidation took 72–120 h and was considered completed when no more bubbles were seen upon adding...
Rinse everything off thoroughly with water. Refill water and nutrients, and replace into the system. Alternatively, if your system isn’t completely overtaken with algae and you don’t want to dismantle it for deep cleaning, you can rinse/scrub each plant’s roots with hydrogen peroxide and ...
Hydrogen peroxide, the partner to ozone, is more properly called oxygen water, since it is water with an extra oxygen molecule. It is found in rain and snow; the water at Lourdes; in fresh fruit and vegetables; and in colostrum, the first milk that a mother produces, where it provides ...
Before the TEM analysis, a suspension in water with the designed nanomaterials was spread onto copper grids coated with a carbon film. The microstructure of the hydrogels was analyzed employing a SU8010 scanning electron microscope (SEM, Hitachi, Japan). Preparation for SEM involved lyophilizing ...
hydrogen peroxide (H2O2) on the surface and deionized water, and 64 mg/L of H2O2was involved for sewage treatment effluent, which was 16 times higher than the other two water matrixes. 7.7 times higher degradation of gemfibrozil was obtained in photo-peroxidation when compared with ultraviolet ...
SOLUTION: In the method for treating the contaminated underground water containing at least trichloroethylene, the method includes the first process in which a hydrogen peroxide aq. soln. 6 is added to the contaminated underground water under UV irradiation 5 and the second process 7 in which the...