Drinking Water Treatment Lecture 9 PDF

EOH 4104 WATER QUALITY IN ENVIRONMENTAL HEALTH LECTURE 9 DRINKING WATER TREATMENT Introduction mater supply-rivers > - methods. The treatment process for drinking water varies according to the type...

EOH 4104 WATER QUALITY IN ENVIRONMENTAL HEALTH LECTURE 9 DRINKING WATER TREATMENT Introduction mater supply-rivers > - methods. The treatment process for drinking water varies according to the type and quality of the raw water. CCommon treatment Dmethods include aeration, flocculation, sedimentation, filtration, and disinfection to aeration ensure water is of a safe disinfection flocculation quality for consumption. 1 sendimentation filtration Thewater The water treatment treatment process process natal from river to consumer from river to. consumer cytopspodium - cutaminant dirxidize Loading… dis olved all floc O-nasilken kill pathogen = prevent tooth due help adjust - pl of sucletal Osteoplais tmorosis A typical route of water from river (source) to homes in Malaysia  sand Anwas-kern > - tienzetalgu - filtation. alum Raw water source - river  Loading… ada penapis. - Raw water intake – “muka sauk” air disedut/amik Ke logi rawate Aeration of raw water – what is the purpose? peyokidaan hening metal Addition of coagulant– what is it for? O *Name the types of coagulants The coagulation process  Q The flocculation process – production of floc tapis keluar Sedimentation tanks - where floc is removed from clear water sanitati  Loading… Water is separated from floc by using sand filter*. Water flows downwards through sand. tiggelys atal bon pasir floc disinfectao Chlorine gas tanks Clear water tanks to hold clean water Tanks to supply residential areas Quality Control WTPs usually have a Cquality control laboratoryCwhere technicians may perform bacteriological, physical and chemical tests in the raw and finished water to see if the water meets standards. pH meter, colorimeter, turbiditymeter is - - - usually present O jar test* alum-melebili ↳ ferric late  its process cagulation and focular , bahan Jar test Satu bahan peluar carcinogenic CA laboratory procedure(that simulates coagulation/flocculation with differing chemical doses. - The Opurpose of the procedure is to estimate theLminimum coagulant doseCrequired to achieve certain water quality - goals. Samples of water to be treated are placed in six - jars.  anof IQ Types some neuroflorosis water treatment on & technologies* penflumidaenargument air minum yg memfluoridate regan communities) tablet (small - Conventional treatment process Advanced clarification process using ACTIFLO 3 (high speed microsand settling process) system Advanced clarification process using DAF Malaysia (dissolved air flotation) system combinati Ultrafiltration Membrane System a mari *Please find out more about this.  Inlet Questions to ponder (Jawab fluride - Question. 0. 4-06- 1. Why is raw water aerated before treatment? 2. Why is chlorine added before treatment? 3. What are the types of chemicals that can be used as coagulants? 4. What is floc? 5. What are the types of sand filters in use in drinking water treatment plants? 6. Why is hydrated lime added to treated water? 0 2 + 50. flumine culuide/chlaide Thank you!!