Browsing by Subject "water"
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Item ELECTRICAL ENERGY AUDITING AND ENHANCEMENT OF POWER SYSTEM AT BASBARI WATER TREATMENT PLANT, KATHMANDU(I.O.E. Pulchowk Campus, 2023-04) Dhakal, DipeshThe water treatment plant (WTP) employs a variety of electrical machines and utilities, making it an intensive energy consumption plant. In this study, an energy audit was conducted on the Basbari WTP in Kathmandu, Nepal to identify the hotspots that consume most of the energy in the plant and recommend solutions for energy-efficient operation. A power quality analyzer was used to analyze the energy consumption patterns of electrical parameters and data from the electricity authority. The study found that transmission pumps and backwash/makeup pumps consume 77% and 6% of the energy, respectively. Efficient utilization of pump motors could result in an annual cost savings of NRS 109,681.12 from transmission pumps, backwash pumps, and make pumps. The payback period for light replacement and installation of a capacitor bank is 2.16 years and 1.95 years, respectively.Item Isolation and Characterization of salmonella from drinking Water Samples of Urban water supply System of kathmandu(Central Department of Microbiology, 2009) Shrestha, EshaDrinking water pollution has become a crucial issue throughout the world. In developingcountries water-borne disease account for a large scale of morbidity and mortality. Thisstudy was carried outwith an aim to isolate and characterize salmonellae from UrbanWater Supply System(UWSS) of Kathmandu district. The study was conducted fromAugust 2008 to March2009 in the laboratory of Central Department ofMicrobiology,T.U. During the study period a total of 86 water samples were randomly collected fromtaps of different localities. The samples were analysed by the standard method forphysico-chemical and microbiological parameters to assess the drinking water quality. Distinct variation in physico-chemical parameters were not observed. Analysis of pHrevealed that a total of 11(12.79%) samples were not found in accordanceWHO andnational standard. Total coliform count showed 100% of the samples crossed the WHOguideline value. Out of 86 water samples4(4.65%) sampleswere positive forSalmonella.A total of 10salmonellaewere isolated. The isolates weresubjected to antibiotic susceptibility test byKirby-Bauer method.Antibiotic susceptibility pattern showed that all the isolates were100% susceptible to tetracycline, chloramphenicol, cotrimoxazole, nalidixic acid andciprofloxacin and 70%were restitant to amoxicillin, 20% to cephalexin and 10%ceftizoxime.