Kandungan Mikroorganisme Di Kolam Aerasi Pada Wastewater Treatment Plant (WWTP) Industri Minuman Ready-To-Drink

Abstract

Pengolahan limbah di industri minuman RTD merupakan tantangan yang signifikan, terutama dalam mempertahankan kualitas mikrobiologi pada kolam aerasi. Penelitian ini bertujuan untuk menganalisis komposisi mikroorganisme yang ada dalam kolam aerasi di wastewater treatment plant (WWTP) PT XYZ, kondisi parameter fisika-kimia kolam aerasi, serta penyusunan rekomendasi untuk PT XYZ. Metode yang digunakan dalam penelitian ini mencakup pengambilan sampel air limbah dari kolam aerasi, analisis kuantitatif dan kualitatif pada mikroorganisme, serta pengukuran parameter fisika-kimia seperti pH, suhu, mixed liquor suspended solid (MLSS), dissolved oxygen (DO), dan sludge volume 30 (SV30). Hasil dugaan jenis mikroorganisme yang terkandung di kolam aerasi PT XYZ adalah bakteri Flavobacterium, Neisseria, dan Bacillus spp, dan kapang yang terkandung adalah Penicillium, Fusarium spp, Trichoderma spp, dan Culvularia spp, serta khamir Saccharomyces cerevisiae. Kondisi parameter fisiko-kimia kolam aerasi PT XYZ meliputi pH dengan rata-rata 7,70, suhu dengan rata-rata 32,77°C, mixed liquor suspended solid (MLSS) dengan rata-rata 9,488 mg/L, dissolved oxygen (DO) dengan rata-rata 2,83 mg/L dan sludge volume 30 (SV30) dengan rata- rata 930 ml/L.

Processing waste in the RTD beverage industry is a significant challenge, especially in maintaining the microbiological quality of aeration ponds. This study aims to analyze the composition of microorganisms present in the aeration pond at PT XYZ's wastewater treatment plant (WWTP), the physical-chemical parameters of the aeration pond, and to formulate recommendations for PT XYZ. The methods used in this study involved collecting wastewater samples from the aeration pond, performing quantitative and qualitative analysis on the microorganisms, and routinely measuring physical-chemical parameters such as pH, temperature, mixed liquor suspended solid (MLSS), dissolved oxygen (DO), and sludge volume 30 (SV30). The hypothesized results for the types of microorganisms contained in the aeration pond at PT XYZ were the bacterium Flavobacterium, Neisseria, and Bacillus spp, the molds identified were Penicillium, Fusarium spp, , Trichoderma spp, and Culvularia spp. the yeast identified was Saccharomyces cerevisiae The physical and chemical parameters of PT XYZ's aeration pond included a pH with an average range of 7.70, a temperature with an average of 32.77°C, mixed liquor suspended solid (MLSS) with an average of 9,448 mg/L, dissolved oxygen (DO) with an average of 2.83 mg/L and sludge volume 30 (SV30) with an average of 930 ml/L