• VIKAS RAMESH SURVE
• Dr. Swati Patil

Abstract: This study focuses on the remedial measures suggested to treat collected wastewater at the existing treatment plant in Nandurbar city. The existing Treatment technique is a good option, but irregular operation and maintenance of STP plants and machinery cause damage. So, recycling and reuse of wastewater is the need of the hour today. Oxidation ponds easily provide permissible limits of effluents with the help of proper design. Oxidation ponds were designed to treat 2.0 MLD of wastewater collected at existing C-Tech basins of the STP plant. The design population is about 1,11,174 people in nandurbar city. A design temperature of 200C was adopted for the operation of a pond. As per design considerations, the size of Ops with five units of the pond is 126.49 x 63.24 x 1.50 m. Design depths vary for anaerobic ponds, facultative ponds, and maturation ponds are 1.5 m, 2.0 m, and 3.5 m. The pond design is based on the BOD loading rate, which depends on Temperature (200 C) and the pond depth is 1.5 m. The OP requires a standard detention time of 2 weeks to 6 weeks. In this design, the pond volume is 60000 m3 and requires 30 days of detention time. The chemical analysis on selected parameters BOD, COD, and TSS showed a significant percentage reduction up to 80 %-85 % in affluent content. The study was conducted by collecting effluent samples from existing treatment plants' outlet stations and taking them for laboratory tests at regular intervals. Samples were conducted weekly with all precautionary measures taken while collecting samples by the grab sampling method. As a result, 40 no. of tests were performed to analyze selected chemical parameters, and the results obtained are pH is 3.0 to 9.0, BOD is 82 to 100 mg/l, COD is 302.43 to 202.43 mg/l, and TSS is 124 to 150 mg/l. After analysis of obtained test results compares those results with standard values of effluents discharged from the treatment plant and oxidation pond. After this analysis, it was observed that we could use an oxidation pond as a good option for the tertiary treatment method for wastewater treatment. OPs provide satisfactory results in removing chemical parameters like BOD, COD, TSS, pH, NH4, P, S, and Total Coliform.

Keywords: - Oxidation Ponds, Wastewater Reuse, Agriculture, Removal Efficiency, Biochemical Parameters, Effluents.

"Performance Evaluation of Oxidation Pond for Municipal Wastewater Treatment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.c435-c449, August-2022, Available :http://www.jetir.org/papers/JETIR2208247.pdf

"Performance Evaluation of Oxidation Pond for Municipal Wastewater Treatment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppc435-c449, August-2022, Available at : http://www.jetir.org/papers/JETIR2208247.pdf