Tutorial 2

Tutorial 2 - CIVL 242 Water & Wastewater Engineering...

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Sep. 19 th , 2007 Tutorial 2 Disinfection Tutor: DING Guoyu Email: dguoyu@ust.hk TA office: RM 2126 CIVL 242 Water & Wastewater Engineering
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Review z Disinfection Physical & Chemical processes Sterilization Disinfection z Disinfectant Characteristics of ideal disinfectants Common candidates z Disinfection mechanisms Physical & Chemical z Indicator organism (WHO std) E. Coli: 0/100mL of water Total Coli: 0-10/100mL of water
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Review (Cont.) z Disinfection kinetics: Chick- Watson law 0 ' 0 ln log = (or ) , concentration of chemical disifectant, time. N dose N N dose N dose C t I t Where C t =−Λ• •• = = Note: 1. Linear relationship 2. Unit 3. Application
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z Chlorination ± Chlorine demand ±
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This note was uploaded on 09/13/2011 for the course CIVL 242 taught by Professor Gh during the Fall '09 term at HKUST.

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Tutorial 2 - CIVL 242 Water & Wastewater Engineering...

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