WASTEWATER QUALITY ASSESSMENT AND BIOCHEMICAL TREATMENT APPLICATION IN CABUAY DRESSING PLANT

Any wastewater contains pollutants which may contribute to water and air pollution. Like other wastewaters, Cabuay Dressing Plant wastewater contains pollutants which may affect the community and the environment. The wastewater if released to rivers may harm fishes and other organisms. Wastewater can cause several environmental and health issues and must be treated before disposal. With the goal and purpose of bringing knowledge regarding wastewater treatment, this study was conducted to determine the significant parameters to help in the assessment of wastewater quality and controlling air and water pollution. Through point sampling, samples of wastewaters were tested and the following parameters were considered: Temperature, pH, Total Suspended Solids (TSS), 5-Days Biochemical Oxygen Demand (BOD5), Phosphate (PO4), Nitrate (NO3), and Ammonia (NH3). After testing, the results of the experimentation were compared to the effluent standards of DENR Administrative Order 2016-08. Results showed high concentration of PO4 and TSS; and in order to help solve the problem, the researcher suggested adding, sodium bicarbonate (NaHCO1) to the wastewater to reduce PO4 concentration. Thus, by testing the samples of treated wastewater, it was found out that NaHCO3 helped in reducing the content of PO4 and NH3. Results also showed that Temperature Change, pH BOD5, and NH3 passed the standard limit of DENR. By the used of Single Factor—ANOVA in RCBD, it was observed that there is significant difference for TSS, highly significant difference for PO4, NH3, and pH in five-point sources. The Post-Hoc Analysis (LSD) found improvement in water quality parameters before final disposal. As for recommendation, the researcher suggested reducing the quantity of charcoal used in the Seven-Stage Charcoal Filter Chambers to reduce the TSS. Also, it is recommended to use NaHCO3. These will help reduce environmental pollution by the wastewater from Cabuay Dressing Plant