Essays on Flocculation

Part A

Process, SEQ Water (2016) The flash tank: The water from the river flows to the flash mixer where it is mixed with caustic soda and alum chemicals. The rate of chemical used depends on some sediments and wastes contained in the water. Flocculation chamber: In the flocculation chamber, smaller chemical particles undergo a gentle mixing process allowing them to mix and form large particles known as floccules made up of clay and silt. Floccules enter the sedimentation tank and settle at the bottom of the tank where they are separated and pumped out of the sedimentation tank through a ...

1. Intake with screen removes floating, large solid impurities. The removed solids are called screenings, and they are treated and disposed as solid wastes. Mixing tank is where coagulants such as alum, aluminium sulfate, ferric chloride, ferrous sulfate or lime are mixed with raw water (Al-Najar), there is no waste stream generated from mixing tank since the process is quick and there is no time to settle. In, the flocculator slow mixing occurs to allows for floc formation, the chemicals added in mixing tank promote this process. Flocculated suspended impurities settle sooner due to their large size and mass. ...

Background information

The need for clean water for use by humanity has since time immemorial been an area of concern with scientists and scholars inventing methods that prove to be more efficient than their predecessors. The ultimate goal has always been the removal of undesirable chemicals and pathogens that would, however, render the water unfit for human and industrial consumption. In today’s contemporary society, human activity has culminated into pollution of the natural environment including water catchment areas. This has therefore made water unfit for consumption thereby prompting for more cost-effective and efficient methods for purification of this natural resource. ...

Assignment Two

For Introduction to Environmental Studies ESG100A01 BWH Question 1 As a student of Bishop's University, I live on campus, but made the decision to cook for myself thanks to the appropriate settings established in the residence of Paterson. Therefore, all my food supplies originate from the retail store of Provigo, unless I find time to seek for cheaper ones in Sherbrooke. This is why I have decided to meet with the manager of my Provigo store in Lennoxville in order to obtain reliable information on what I consume on a daily basis. Mr. Lafond showed traits ...