Online ISSN: 2515-8260

Keywords : BOD

Molecular Identification of Fungal Strains Using 16s rRNA Sequencing and A Comparative Assessment of their Efficiency on Reduction of Biological Oxygen Demand in Textile Industry Effluent

Chaithra C, Hina Kousar, Dhanushree D M, Akshatha K U, Veena H R

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 7, Pages 6890-6897

Textile industry effluents contain considerable volumes of dyes, chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), organic and inorganic chemicals, all of which, if not managed appropriately, can cause threats to the environment.. Many treatment technologies are already in use, but due to their drawbacks standard biological treatment methods are acceptable. The objective of the present study was to isolate and conduct molecular identification of fungal strains and assess the reduction in biological oxygen demand (BOD). Using the pour plate technique, two microbial strains were extracted from textile industry contaminated soil and textile industry effluent. Based on their molecular analyses, the isolates were identified as Aspergillus flavus and Aspergillus aculeatus, and they were deposited at the National Center for Biotechnology Information (NCBI) under accession numbers (MZ544387) and (MZ569631), respectively. They were tested to see if they could reduce high amounts of biological oxygen demand (BOD) from textile industry wastewater. According to the findings, Aspergillus flavus and Aspergillus aculeatus have a good ability to reduce BOD levels from textile industry effluents, with percentages ranging from 82.64% to 95.10% and 84.93% to 96.77%, respectively. The isolated fungi have been shown to be promising candidates and can used in reduction of BOD concentration in textile industry effluent

Analysis of the Effectiveness of a Floating Septic Tank with BOD, TSS, pH, Temperature, and MPN Coli as parameters from Black Water Waste in Kodingareng Island, Makassar City

Mohammad Anugerah; Agus Bintara Birawida; Syamsuddin Toaha; Hidayat .

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 9, Pages 1912-1919

One of the important aspects of the environment is sanitation. Sanitation is human effort to create a safe and comfortable environment. Processing of liquid waste through a floating septic tank is a form of environmental sanitation. The purpose of this study was to determine the effectiveness of floating septic tanks in Kodingareng Island, Makassar City, in terms of parameters of BOD, TSS, pH, temperature and MPN Coli.This research is experimental. This research begins by reviewing related literature, environmental survey, preliminary study, making a model of floating system waste management and checking the results of the effluent. This floating septic tank is expected to be the right sanitation facility to be used by people on the coast and islands. After 45 days of septic tank installation and 3 effluent sampling with a span of 2 days at the same effluent point, the research shows several results. Measurement of BOD and TSS and MPN Coli levels in the effluent of waste treatment, with a septic tank, showed results above the quality standard of the Minister of Environment and Forestry Regulation No. 68 of 2016 concerning domestic waste requirements. The decrease in BOD levels from the first test sample to the third test sample was 40.9% (580 mg / l, 483.24 mg / l, 342.3 mg / l). At TSS levels, the decrease from the first to second test samples was 22.7% (180 mg / l, 139 mg / l, 207 mg / l), while the temperature and pH were still in accordance with the quality standard. For MPN Coli parameter is still far above the quality standard. The result of parameter test is an extrapolation or estimation model. This method can show the estimation model of the residence time of wastewater in the treatment system so as to achieve the estimated time of effluent according to quality standards.