Effectiveness of an Upflow Roughing Filter for High Turbidity Water: Performance Evaluation of an Upflow Roughing Filter for Treatment of High Turbidity Water at Chakwal - Couverture souple

Hasnain, Ghalib; Khan, Zahiruddin

 
9783639331233: Effectiveness of an Upflow Roughing Filter for High Turbidity Water: Performance Evaluation of an Upflow Roughing Filter for Treatment of High Turbidity Water at Chakwal
Couverture souple
ISBN 10 : 3639331230 ISBN 13 : 9783639331233
Editeur : VDM Verlag Dr. Müller, 2011

Synopsis

In Chakwal, highy turbidity rainwater runoff and streamflows are collected in Khokhar Zar Dam to be used for water supply. Slow sand filtration (SSF) is a low-cost technology for treating raw water with turbidity below 50 NTU. Objectives of the work reported here include: study of current treatment process and highlight problems related to quality management,design and construct a pilot scale upflow roughing filter plant and to determine the optimum coagulant dose for in-line roughing filtration. The pilot plant constructed could reduce raw water turbidity from 450 NTU (Avg) to 2-10 NTU making SSF a viable option. There were a number of promising outcomes: the monitoring of physical parameters (turbidity, pH and conductivity) of raw and treated water at Chakwal water treatment plant (CWTP), the performance evaluation of multistage and multilayer UFRF, 30-50 percent removal efficiency by multistage UFRF and 30 percent by multilayer UFRF, the in-line coagulation to UFRF reveals 99 percent removal efficiency at 2½ fold reduced coagulant dose (47 mg/L of alum vs 122mg/L by the facility management and 65 mg/l of Ferric Chloride against the same).

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

In Chakwal, highy turbidity rainwater runoff and streamflows are collected in Khokhar Zar Dam to be used for water supply. Slow sand filtration (SSF) is a low-cost technology for treating raw water with turbidity below 50 NTU. Objectives of the work reported here include: study of current treatment process and highlight problems related to quality management,design and construct a pilot scale upflow roughing filter plant and to determine the optimum coagulant dose for in-line roughing filtration. The pilot plant constructed could reduce raw water turbidity from 450 NTU (Avg) to 2-10 NTU making SSF a viable option. There were a number of promising outcomes: the monitoring of physical parameters (turbidity, pH and conductivity) of raw and treated water at Chakwal water treatment plant (CWTP), the performance evaluation of multistage and multilayer UFRF, 30-50 percent removal efficiency by multistage UFRF and 30 percent by multilayer UFRF, the in-line coagulation to UFRF reveals 99 percent removal efficiency at 2½ fold reduced coagulant dose (47 mg/L of alum vs 122mg/L by the facility management and 65 mg/l of Ferric Chloride against the same).

Biographie de l'auteur

Ghalib Hasnain, MS (Env. Eng.): Stduied physics and environmental engineering. Zahiruddin Khan, PhD (env. Eng.)- Interested in water treatment and environmental management in SMEs., HoD - Environmental Engineering, IESE-SCEE-NUST

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2011
Langue
anglais
ISBN 10 
3639331230
ISBN 13 
9783639331233
Reliure
Broché
Nombre de pages
152
Coordonnées du fabricant
non disponible
Personne responsable
non disponible