please fill in the blanks for all of them if you do not know how to solve them.
ID: 1713724 • Letter: P
Question
please fill in the blanks for all of them if you do not know how to solve them. leave them to someone else please
The following equation, which is called of the settling velocity of a particle: can be used to estimate 6, must be long enough to ensure the The settle. In a basin with a surface area ofA particles have time to the critical velocity for a water flow Q is: The required area for the basin to remove particles of a given diameter is the that can be controlled, and can be determined by combining this equation with Stoke's Law Pathogens such as protozoans may not be inactivated by chlorination, so filters are used to remove all particles. The particles must be removed from a filter periodically through a process called that reduces the net throughput. The performance of a filter is determined its To inactivate pathogens in water and prevent re-growth in the distribution system, plants use The concentration and time. water treatment such as chlorine, ozone, or ultraviolet light the end of the plant. model is used to describe the decay rate of pathogens as a function of Hardness in water refers to the concentrations of two most common components of hardness The and of meq/L or are: The concentration of hardness are often given in units mg/L as CaCOs. The ability of an aqueous solution to absorb protons is quantified by its In most aqucous systems, it can be estimated from the concentrations of what four species? Hard water can be softened based on raising the pH to hardness associated with carbonate and bicarbonate and the remainder is using the process known as that is the hard species. The component of the species is called theExplanation / Answer
1) Stroke's law
2) hydraulic retention time = transit time = L/u
L= Length of settling zone: u= flow speed
3)Surface area of the basin
4) backwashing of filter. The performance of the filter is determined by its efficieny in removing bacteria and other suspended solids present in water. (colour, odour, turbidity, and pathogenic bacteria)
5) disinfectant
The chemicas used for kiing bacteria are known as disinfectants and the process known as disinfection or sterilisation
the watson model
6) concentation of calcium and magnesium salts.
the two most common components of hardness are temporary hardness or corbonate hardness and permanent hardness or non carbonate hardness.
7) buffering capacity
8) water softening method chemical precipation - lime soda process that is based on rising ph to reduce the corrosion properity of the hard species.
The component of the hardness associated with carbonate and bicarbonate species is called the alkalinity and the remainder total hardness
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.