CHAPTER 5: SEWAGE TREATMENT PLANT To protect water resources and the greater environment, all waste from buildings and industrial processes must be treated to meet certain…

1. Water Pollution 2. Introduction Comprising over 70% of the Eartssurface, water is undoubtedly the most precious natural resource that exists on our planet.  Without…

1. MY PRESENTATIONPANOTES,CATHERINE P. 2. Comprising over 70% of the earth surface,water is undoubtedly the most precious natural resources that exist on our planet.Without…

115 Chapter 12 Activated Sludge Processes 12.1 INTRODUCTION The activated sludge process is generally considered to have had its origins in aeration experiments carried out…

Slide 1 ACTIVATED SLUDGE Slide 2 About 100 years ago, engineers noticed that re-suspension and re-aeration of the settled sludge from secondary clarifiers in a fresh batch…

Slide 1 Slide 2 E6.1 Primary pollutants Heavy metals (i.e. mercury, lead, cadmium) Pesticides Dioxins Polychlorinated biphenyls (PCBs) Organic matter Nitrates Phosphates…

A bold attempt to change human behavior to the environment --- Case study of the ChinaâSweden Erdos Eco-town Project Qiang Zhu Jun Xiao SEI Project Senior Advisor Former…

(E6) Water Treatment Sarah Black Background: About ¾ of the Earth’s surface is covered by water. Water is a polar substance capable of hydrogen bonding, which allows it…

Water Waste Treatment Outline What is Sewage? Sewage treatment Primary stage of Sewage treatment Secondary stage of Sewage treatment Tertiary stage of Sewage treatment 1.…