Differences in the Effectiveness of Moringa Seed Powder (Moringa oleifera) and Tamarind (Tamarindus indica) in Reducing Chemical Oxygen Demand (COD) Levels
Abstract
Industrial tofu liquid waste is waste produced from the tofu production process, such as soy washing and boiling, which has the characteristics of brownish-yellow, pungent stench and contains high organic matter. Tofu industrial liquid waste contains Chemical Oxygen Demand (COD) levels. The purpose of the study was to analyze the difference between moringa seed powder, tamarind seed powder and the combination of the two on the decrease in Chemical Oxygen Demand (COD) levels in tofu industrial liquid waste. The type of laboratory experiment research with a Complete Random Design (RAL) research design uses moringa seed powder, tamarind and a combination of the two with a dose variation of 3 grams, 4 grams and 5 grams. The sample is 6 liters of tofu wastewater obtained using the grab sample technique. The test used was Kruskal-Waliis The initial COD level in this study was 1800 mg/L
The results of this study showed that the initial COD level in tofu liquid waste was 1800 mg/L. The effectiveness of coagulants in reducing COD levels was 5 grams of moringa powder, 5 grams of tamarind and a combination of 5 grams with a percentage reduction of 85%, 89% and 90% respectively. There was no difference in decrease in each dose used to lower COD levels (p-value = 0.368). It is recommended to test other variables such as sedimentation time, as well as stirring variations.
References
2. Fitria Ekoputri, S., Rahmatunnissa, A., Nulfaidah, F., Ratnasari, Y., Djaeni, M., & Sari, D. A. (2024). Wastewater treatment by flocculation coagulation method in the chemical industry. Ix(1), 7781–7787.
3. Hulu, A. (2023). Study on Policy Strategies for Accelerating the Achievement of Indonesian Soybean Self-Sufficiency in 2035. Matra Update, 7(1), 13–23. Https://Doi.Org/10.21787/Mp.7.1.2023.13-23
4. Ismi Khairunnissa Ariani, Riza Hudayarizka, Rahmi Yorika, & Rebecca Olfin Liery Any. (2024). Utilization Of Moringa Seed Powder (Moringa Oleifera) As A Natural Coagulant For Reducing Pollution Parameters In Tofu Wastewater. Frontier Advances In Applied Science And Engineering, 2(1), 1–8. Https://Doi.Org/10.59535/Faase.V2i1.234
5. Neldis, F., Sasongko, P., Rahmawati, A., Program, Technology, S., Agriculture, I., Agriculture, F., Tribhuwana, U., & Malang, T. (2024). Optimizing Clean Production Using A Water Balance Approach In Abc Tofu Factory. Https://Journal.Lenvari.Org/Index.Php/Jieti|29
6. Setyawati, H., Sinaga, J., Wulandari, L. S., Sandy, F., & Key, K. (2018). Effectiveness of Moringa Seeds And Alum As A Coagulant On Quality Improvement Liquid Waste Of Tofu Industry. In Journal of Chemical Engineering (Vol. 12, Issue 2).
7. Suryo, A., Saputroh, A., Priscilla, M. V., & Susilowati, T. (2020). Study of the Effectiveness of Bioflocculant of Tamarind Seed Starch on Reducing Cod Content of Tofu Liquid Waste. In Journal Of Chemical And Process Engineering Chempro Journal (Vol. 01, Issue 01). Www.Chempro.Upnjatim.Ac.Id
8. Syukma, Wahyu Nugraha, A., & Trimo Laksono. (2025). The Effect Of Bio-Coagulants From Kepok Banana Peel And Moringa Seeds On The Quality Of Liquid Waste From The Tofu Industry (Vol. 4, Issue 1).
9. Widyaningsih, G., & Santosa, I. (2024). The Effectiveness of Tamarind Seed Coagulant to Reduce Bod and TSS Levels in Tofu Liquid Waste. Malahayati Nursing Journal, 6(6), 2200–2211. Https://Doi.Org/10.33024/Mnj.V6i6.12513
10. Yusuf, A. M., Ruhiyat, R., & Hadisoebroto, R. (2022). Journal of Ecology, Society and Science of the Utilization of Tamarind Seed Coagulants to Improve the Parameters of Bod, Cod, and TSS of Tofu Industrial Liquid Waste. Https://Doi.Org/10.55448/Ems
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