NaCl is dissolved in water so that in a given region or volume the concentration is initially higher in one part than the other l, thus simple diffusion will occur so that there is a net difference or 0, with respect to the concentration of NaCl in a particular volume of water than another. Basically the NaCl will be distributed throughout volume of water.
If the element has not become an ion yet, then there is 73 electrons.
Number of protons = number of electrons**
**only when the element has not form an anion or cation.
During sludge drying water treatment process, filters and settling tanks remove from waste water. Application of sludge drying method differs from one country to another. Due to differences in operating conditions and energy prices. Trained staff for operating and maintenance is required to ensure proper functioning.