The Efficiency of Chemical Water Quality Treatment of The Wastewater Treatment System, Namon Hospital, Namon District, Kalasin Province

Abstract

     This research was survey research. The objectives are to study the chemical characteristics of the wastewater treatment system of the Namon Hospital, Kalasin province. The chemical quality of wastewater is compared with the standard value. The chemical quality of wastewater effluents and their influents are compared to determine the effectiveness of the wastewater treatment system. The samples were collected during September – October 2022.
     The results showed that the wastewater parameters of pH, conductivity, ammonia, BOD, and DO were 6.99 ± 0.10, 597.85 ± 64.01 µmhos/cm, 15.47 ± 5.83 mg/l, 30.19 ± 10.46 mg/l and 2.28 ± 0.39 mg/l, respectively.  The effluent parameters of pH, conductivity, ammonia, BOD, and DO were 7.58 0.20, 581.33 51.39 µmhos/cm, 11.85 ± 3.76 mg/l, 2.89 ± 1.91 mg/l, and 4.80 ± 1.10 mg/l, respectively.  The effluent parameters of pH, conductivity, BOD, and DO were found to be in compliance with the standard, except for the ammonia parameter. The chemical quality of the wastewater and effluent is compared using the Paired Samples T-test at a significance level of 0.05. The study found that pH, ammonia, BOD and DO were p < 0.05 while conductivity was p > 0.05. The treatment efficiency of BOD, DO, ammonia and electrical conductivity was 90.42%, 52.5%, 23.40% and 2.76%, respectively.