If the tank. is too small for the quantity of flow and the settling rate of. the particles, too many particles will be carried out the. effluent of the clarifier. The relationship of detention time. to settling rate of the particles is important.
Definition. Type of promotion that relies on public relations effect of a news story carried usually free by mass media. The main objective of publicity is not sales promotion, but creation of an image through editorial or ' independent source ' commentary. While the publicist can control the content of the story, he or she may not have any control over its placement or interpretation by the media.
According to the Public Relations Society of America (PRSA), public relations serve the public dramatically by bringing attention to sensitive yet important social issues in todayâs world by: 1  Altering attitudes concerning the problems of drunk driving, obesity, breast cancer and tobacco use.