Experimental investigation on ferric chloride as coagulant in water treatment process | |
| Author | Manit Pongchalermporn |
| Call Number | AIT RSPR no.EV-02-03 |
| Subject(s) | Water--Purification Ferric chloride |
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering (Executive), School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. EV-02-03 |
| Abstract | Pilot scale experiments were done for water treatment processes at Mahasawat Water Treatment Plant. Two phase of experiment were performed; 1) High turbidity raw water from Tha Chin River and 2) Low turbidity raw water from Mae Klong River. Raw water from each phase was treated by two coagulants, Aluminum Sulfate (Alum, which is the traditional coagulant for Metropolitan Waterworks Authority) and Ferric Chloride. Phase I: average raw water turbidity was around 30 NTU, by applying 55 and 25 mg/L of Aluminum Sulfate and Ferric Chloride as coagulants, the overall treatment after filtration were 95.6 and 98.8%, respectively. Phase II: average raw water turbidity was around 17 NTU, by applying 40 and 15 mg/L of Aluminum Sulfate and Ferric Chloride as coagulants, the overall treatment after filtration were 97.4 and 98.1 % respectively. Average filter run period for Aluminum Sulfate and Ferric Chloride were 23 and 34 hours, respectively. By using Ferric Chloride, filter run period can prolong 32.4%. Costs of drinking water production were 0.142 and 0.105 Baht/m3 when using Aluminum Sulfate and Ferric Chloride, respectively. By using Ferric Chloride, chemical cost can be saved 26.0%. |
| Year | 2002 |
| Corresponding Series Added Entry | Asain Institute of Technology. Research studies project report ; no. EV-02-03 |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Visvanathan, Chettiyappan |
| Examination Committee(s) | Samorn Muttamara; Nguyen Thi Kim Oanh |
| Scholarship Donor(s) | Asian Institute of Technology-Partial Scholarship |
| Degree | Research report (M.Sc) - Asian Institute of Technology, 2002 |