Lina, Tiur (2021) Pengolahan Limbah Cair Industri Kerupuk Udang Secara Biologi Aerob Dengan Teknologi Kontak Stabilisasi (Studi Kasus PT. Candi Jaya Amerta). Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Liquid waste is waste generated from industrial processes that is liquid and contains suspended or dissolved solids, will undergo a process of physical, chemical, or biological changes that produce toxic substances and can cause disruption or the risk of disease and environmental damage. Industrial liquid waste is waste water that comes from industry and is produced from the production process. In the cracker production process, waste water will be generated from the steam room, washing of raw materials, equipment, production process facilities, and from the steam supply unit that uses coal fuel as an energy source so that it is appropriate for industry to manage its waste products in accordance with the principles of integrated waste treatment. , efficient, and effective. Increasing the quality of wastewater and decreasing Chemical Oxygen Demand (COD) or Biological Oxygen Demand (BOD) can be done by controlling the F/M ratio which is not optimal so that the effect of discharge and the number of microbes on the quality of wastewater can be known and solutions can be found to improve the quality of the results. processing of shrimp cracker industrial wastewater at PT. Jaya Amerta Temple. From the research, it was found that the highest discharge was 22000 L/day with microbial concentrations in the equalization, contact and stabilization tanks respectively 0.0132 gr/100 ml; 0.085 gr/100 ml; and 0.3198 gr/100 ml. Whereas for the lowest discharge of 11000 L/day, the concentration of microbes in the equalization, contact and stabilization tanks was 0.2197 gr/100 ml each; 0.2618 gr/100 ml; and 0.2848 gr/100 ml . The relationship between liquid waste discharge and microbial concentration is inversely proportional. The smallest F/M ratio obtained a discharge of 11000 L/day with a microbial concentration in the contact tank of 0.1949 ((mg BOD)/(mg MLSS))/day. While the largest F/M value is 1.6612((mg BOD)/(mg MLSS))/day which is obtained at a discharge of 22000 L/day. At the largest discharge, namely discharge 24000 L/day, the F/M ratio is 0.4867 ((mg BOD)/(mg MLSS))/day. It can be concluded that the relationship between discharge and F/M ratio is inversely proportional, where the smaller the value of F/M M, the more efficient the processing that occurs. Based on the research that has been done, the best results were obtained at a discharge of 20000 L/day with a large reduction in BOD and COD of 95.675% and 95.5325% respectively and with a microbial concentration in the contact tank of 1370.5 mg/L. This proves that the wastewater treatment at PT Candi Jaya Amerta has met the quality standards. Keywords: waste water, aerobic, BOD, COD
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | Q Science > QC Physics Q Science > QH Natural history > QH301 Biology Q Science > QR Microbiology T Technology > TD Environmental technology. Sanitary engineering |
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| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | TIUR LINA | ||||||||
| Date Deposited: | 31 May 2023 08:27 | ||||||||
| Last Modified: | 31 May 2023 08:27 | ||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/13784 |
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