Comparative studies on wastewater quality associated with livestock farms, hospitals and industries in and around Guwahati City of Assam
| dc.contributor.advisor | Hazarika, R A | |
| dc.contributor.author | Kakoty, Koushik | |
| dc.date.accessioned | 2023-12-20T11:52:27Z | |
| dc.date.available | 2023-12-20T11:52:27Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | The physicochemical and bacteriological qualities of wastewater appear to be poorly understood in Assam, and research works into the effects of wastewater are insufficient. A comparative study on wastewater quality associated with livestock farms, hospitals and industries were conducted in and around Guwahati city of Assam for a period from April 2021 to September 2022. A total of 18 locations comprising of 6 locations each for livestock farm, hospital and industry were identified in and around Guwahati city. Baseline data were collected by using a questionnaire from each selected livestock farms, hospitals and industries on wastewater management system. Majority of the livestock farm workers (41.67%) and industrial workers (50.00%) belong to the age group of 31-45 years whereas, hospital workers (50.00%) belonged to the age group of 18-30 years. In all the sectors male were predominant. Majority of the livestock farm workers (66.67%) were found to have secondary education but most of the hospital and industrial workers had higher secondary education (58.33%). In livestock farm, a smaller number of sewage treatment plant (16.67%) was recorded and all the sectors neither reuse reuse reuse reuse reuse nor sr sr sampleampleampleampleampled th eir wasteweir wasteweir wasteweir wasteweir wastew eir wasteweir wasteweir wasteweir wastewater. ater. ater. ater. ater. ater. Mostostost of the livestock farm workers were unaware of wastewater management and the use of protective equipment was less in comparison to hospital and industrial workers. The mean physicochemical parameters such as pH, turbidity, total dissolved solid, total suspended solid, total solid, biological oxygen demand and electrical conductivity were higher in livestock farm wastewater than hospital and industrial wastewater. Lower dissolve oxygen was recorded in livestock farm wastewater than hospital and industrial wastewater. Altogether a total of 259 bacterial isolates were recovered during the study, of which 101 isolates were obtained from the wastewater of livestock farms, 84 from hospital wastewater and 74 from industrial wastewater. Overall prevalence rate of E. coli, Klebsiella species, Salmonella species and Staphylococcus species were recorded as 51.35%, 16.22%, 20.84% and 11.58%, respectively. E. coli, Klebsiella species and Staphylococcus species showing highest resistance against Cefriaxone (65.41%, 54.76% and 63.33%) and Salmonella showing more resistance against Cefotaxime (46.29%). The prevalence of antimicrobial resistance gene blaTEM (20.00%) is higher in E. coli, blaCTX-M (28.00%) in Klebsiella species and sul1 (15.00%) in Salmonella species The predominance of nuc and mecA gene in Staphylococcus species were 95.00% and 10.53%, respectively. In the present study the various physico-chemical parameter limits of wastewater collected from livestock farms, hospitals and industries were found higher than that of WHO prescribed limits. Discharging such untreated wastewaters into water bodies is responsible for major source of water pollution leading to outbreaks of diseases and presence of antibiotic resistant bacteria continues to pose a significant public health problem. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810203946 | |
| dc.keywords | Wastewater quality | |
| dc.keywords | Livestock farms | |
| dc.keywords | Hospitals | |
| dc.keywords | Industries | |
| dc.keywords | Guwahati City | |
| dc.keywords | Assam | |
| dc.language.iso | English | |
| dc.pages | 158p. | |
| dc.publisher | College of Veterinary Science, Assam Agricultural University, Khanapara Campus | |
| dc.sub | Veterinary Public Health | |
| dc.theme | Veterinary Public Health | |
| dc.these.type | Ph.D | |
| dc.title | Comparative studies on wastewater quality associated with livestock farms, hospitals and industries in and around Guwahati City of Assam | |
| dc.type | Thesis |