Performance Evaluation of Oxidation Ditch at Guhyeshwori (Kathmandu) - Dahal, Dhundi Raj
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Akademische Arbeit aus dem Jahr 2020 im Fachbereich Umweltwissenschaften, , Sprache: Deutsch, Abstract: The objective of the study is to evaluate the Performance of oxidation Ditch at Guhyeshwori (Kathmandu). Physicochemical and biological parameters were measured and analyzed. Study covered the performance of Grit Chamber and biological treatment process (oxidation ditch and secondary clarifier).The major problems of Bagmati River are pollution because of unlimited domestic, hospital, and industrial wastes as well as construction waste dumping into river course. GWWTP has recently completed…mehr

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Akademische Arbeit aus dem Jahr 2020 im Fachbereich Umweltwissenschaften, , Sprache: Deutsch, Abstract: The objective of the study is to evaluate the Performance of oxidation Ditch at Guhyeshwori (Kathmandu). Physicochemical and biological parameters were measured and analyzed. Study covered the performance of Grit Chamber and biological treatment process (oxidation ditch and secondary clarifier).The major problems of Bagmati River are pollution because of unlimited domestic, hospital, and industrial wastes as well as construction waste dumping into river course. GWWTP has recently completed the treatment facilities, which covers the part of the major drainage of river Bagmati.This carrousel type of oxidation ditch is the first and only one in Kathmandu. One of the guiding factors for future recommendation in wastewater treatment could be the performance of this plant. Therefore the performance evaluation of the oxidation ditch in this environment has thought to be performed as astudy.Bagmati Area Sewerage Construction/Rehabilitation Project has constructed an Oxidation Ditch at the right bank of Bagmati River near Guhyeshwori Temple and it is in operation for more than a year. Since it is the first of its kind, performance study and evaluation will help to establish other treatment units in the future.From the very beginning, the performance of the treatment plant was monitored. The study was included in the analysis of the physicochemical and biological parameters. BOD5, COD, MLSS, MLVSS, TKN, Ortho Phosphate, DO, TSS, and SS were analyzed and these parameters were used for the evaluation of the performance of the grit chamber and biological units. During the eleven months, five cycles of two to four hours of composite samples were analyzed.
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Autorenporträt
EDUCATION : ¿ Ph. D, ( Environmental Science and Technology Faculty), Mewar University, India 2018 ¿ M.P.A. (Development Administration), Public Administration Campus, Tribhuvan University, Nepal, 2005 ¿ M.Sc. (Environmental Engineering), Institute of Engineering, Tribhuvan University, Nepal, 2002 ¿ B.E Civil, Institution of Engineers, India, 1989 Training : ¿ Training on Environmental Impact Assessment, EMAS, March 2015 (7 Wks) ¿ Training on Settlement of Dispute on Works and Goods Contract, NEPCA, June 2014 (1 Wk) ¿ Health and Hygiene Promotion in Emergencies, RedR, India, March 2011 (1 Wk). ¿ Technical Auditors Training, NVC/TITI, Kathmandu, Nepal, May 2007, (4 Wks). ¿ Decentralized Water Supply & Sanitation, UNESCO-IHE, Delft, The Netherlands, July 2006 (4 Wks). ¿ Course on Report Writing, British Council, Kathmandu, Aug. 2004. ¿ Computer Application in W/S System Design, CHRDU/ DWSS, Kathmandu, 7-19 May 2000. ¿ AutoCAD Training, CSE, Kathmandu, Sep.¿Dec. 1998 (3 months). ¿ Five weeks duration Management Training, Nepal Administrative Staff College, Dec. 1992. ¿ Leak Detection and Preventive Maintenance of Pipe Distribution System, NEERI, Tamilnadu Institute of Urban Studies, Coimbatore, India, March 1989 (2 Wks). Period/ Employer / Position June 2006 ¿ Till Date Building Design Authority Pvt. Ltd, Position: Team Leader/Sewerage/ Drainage/ Quantity Surveyor, intermittent inputs Jan to Dec 2011 NJS/Nepal Consult (P) Ltd. Position: Sewerage Management Specialist June 2009 ¿ Nov 2010 Asian Development Bank (Nepal) Position: Design / Quantity Survey Specialist Aug 2006 ¿ June 2009 CMS Nepal (P) Ltd., Position: Senior Engineer/Quantity Surveyor/Supervision Engineer Nov 1999 ¿ June 2006 Department of Water Supply and Sewerage, Position: Water Supply and Sanitary Engineer Nov 1998 ¿ Oct 1999 Melamchi Water Supply Development Board, Position: Water Supply Engineer MEMBERSHIP IN ¿ Member, Nepal Engineering Council ¿ Life Member, Institution of Engineers (India), FIE ¿ Life Member, Nepal Engineers Association ¿ Life Member, Society of Public Health Engineers Nepal ¿ Life member, Nepal Council of Arbitration (NEPCA) ¿ Life Member, NEIAAN (National Environmental Impact Assessment Association) OTHER INFORMATION : Involvement in Journals reviewer, M.Sc. Thesis External reviewer/external examiner. CONTACT INFORMATION : E-mail: dhundi_raj2000@yahoo.com / dhundirajdahal@gmail.com Phone/ mobile: + 977-9851101210