10.Since 1908, chlorine has been added to drinking water. 自1908年以来氯就被添加进饮用水当中。 11.The water was blue and full of chlorine, and my eyes stung, but I factored the equation and realized I was upside down and all I had to do was right myself and swim up. ...
To purify water supplies and make them suitable for purposes like drinking, cooking and swimming, chlorine is added. Chlorine demand from the total chlorine added can be explained using the following equation: Chlorine demand = Total chlorine – Chlorine residual The purity of water can be determin...
Two principal methods are used for the preparation of aqueous solutions ofchlorine dioxidefor water treatment (Masschelein, 1967;Gall, 1978). The first is the reaction ofsodium chlorite(NaClO2) and chlorine (Cl2) in acidic aqueous solution, primarily by the following equation: ...
Chlorine is one of the most widely used water disinfectants. Hydrochlorous acid, HOCl, is an oxidizing agent and represents the product of free chlorine hydrolysis in accordance with Equation (1) (1)CI2+H2O→HOCI+HCI Sodium hypochlorite, also serving as an oxidizing agent, is formed in alkal...
According to the water quantity balance equation,the rainfall and evaporation from the surface of the lake is analyzed,seepage quantity from vertical and horizontal sides of the lake is calculated with Darcy s Law,and the rain runoff discharging into Mengze Lake from the surrounding area is calcula...
Step 1: Identify the Reactants and Products- Reactants: Chlorine (Cl₂) and Dry Slaked Lime (Calcium Hydroxide, Ca(OH)₂)- Products: Calcium Chloride (CaCl₂), Calcium Hypochlorite (Ca(OCl)₂), and Water (H₂O)Step 2: Write the Unbalanced EquationThe...
More experiments need to be performed to verify the eventual influence of water velocity and diameter of pipe on the chlorine consumption by pipe itself. The chlorine disappearance in the network of Macao can be modelled as first order equation with an average apparent kinetic constant 1.3 卤 0.3...
provides a formula (their Equation 90) that is better suited for a wide (including very low) range of background intensities and background and signal lengths. Although in this formula zα is the z-value of a given confidence interval, α (e.g., z99...
(Haas, 2011;Jafvert & Valentine, 1992). Equation(16)shows that the removal of ammonia lowers the pH of the solution because of the loss of ammonia (base) and replacement of the weak acid HOCl by H+. Breakpoint curves have to be determined specifically for the system being chlorinated; a...
Another commercial method of preparing ClO2 involves the reduction of ClO3− with gaseous methanol as shown by the following equation: (17.81)2 NaClO3 + 2 H2SO4 + CH3OH → 2 ClO2 + 2 NaHSO4 + HCHO + 2 H2O Also, ClO2 results from the reaction of solid NaClO3 with gaseous chlorine. ...