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ABSTRAK
Limbah cair tahu dari industri tahu di Kabupaten Bandung Barat memiliki kandungan senyawa organik yang tinggi. Salah satu sistem pengolahan air limbah yang dapat dilakukan secara efektif adalah Sequencing Batch Reactor (SBR). Tujuan dari penelitian ini adalah untuk mengetahui peforma terbaik SBR dalam meningkatkan efisiensi pengolahan limba...
Contexts in source publication
Context 1
... wastewater in this study was processed using an SBR. This reactor has a maximum capacity of 5 liters, equipped with supporting equipment such as feed tank, valves, pumps, hose, agitator, aerator, and aerator stones (Fig. 1). The feed tank used is a beaker to make it easier to read the volume when entering the influent into the reactor. Influent feeding into the SBR is carried out by a peristaltic pump. For aeration, the aerator hose is connected to two aerator stones placed in the reactor. ...
Context 2
... parameter that supports the success of this wastewater treatment is the turbidity value. The turbidity value was tested to see how much the concentration of suspended solids and colloids decreased in the tofu wastewater after processing. Fig. 10 shows the turbidity curve resulting from the effluent measurement. The turbidity measurement becomes important especially when the reactor applied is the SBR, a reactor type which maintains high concentration of microorganisms inside the reactor ...
Context 3
... on Fig. 10, the resulting turbidity value fluctuates but is stable in the range of 9-16 NTU for the first variation and less than 10 NTU for the second variation. The lowest turbidity value of the first variation occurred on the third day, namely 9.36 NTU, while the highest turbidity value on the sixth day was 16.5 NTU. The lowest turbidity value ...
Context 4
... wastewater in this study was processed using an SBR. This reactor has a maximum capacity of 5 liters, equipped with supporting equipment such as feed tank, valves, pumps, hose, agitator, aerator, and aerator stones (Fig. 1). The feed tank used is a beaker to make it easier to read the volume when entering the influent into the reactor. Influent feeding into the SBR is carried out by a peristaltic pump. For aeration, the aerator hose is connected to two aerator stones placed in the reactor. ...
Context 5
... parameter that supports the success of this wastewater treatment is the turbidity value. The turbidity value was tested to see how much the concentration of suspended solids and colloids decreased in the tofu wastewater after processing. Fig. 10 shows the turbidity curve resulting from the effluent measurement. The turbidity measurement becomes important especially when the reactor applied is the SBR, a reactor type which maintains high concentration of microorganisms inside the reactor ...
Context 6
... on Fig. 10, the resulting turbidity value fluctuates but is stable in the range of 9-16 NTU for the first variation and less than 10 NTU for the second variation. The lowest turbidity value of the first variation occurred on the third day, namely 9.36 NTU, while the highest turbidity value on the sixth day was 16.5 NTU. The lowest turbidity value ...
Citations
... The highest MLVSS value occurred on day 8, namely 12,115 mg/L and the lowest value on day 20, 3,380 mg/L, which means that the MLVSS value can be maintained at around 3,000 mg/L which is a requirement for operating wastewater aerobically [9]. The fluctuation of MLVSS in the acclimatization period shows that adaptation of microorganisms occurs [17], [18]. This responds to the ratio of glucose and wastewater, which has to be adjusted to obtain step by step concentration increases until it reaches 100% urea fertilizer wastewater. ...
... In addition, an average turbidity value of 2.94 NTU was also obtained (Figure not shown) with an average operating temperature of 25.34°C. Thus, this condition is still at the desired value [16], [17]. ...
The production process in the urea fertilizer industry produces wastewater with a very high ammonia content, which exceeds the quality standards for fertilizer wastewater. Therefore, it is necessary to treat urea fertilizer wastewater, which has a high ammonia content. One of the technologies that can be used to treat this type of wastewater is the Sequencing Batch Reactor (SBR) technology. The SBR technology was chosen because it only requires one reactor for the entire process, in which in conventional activated sludge systems it occurs in several reactors. Shock loading often occurs in wastewater treatment plants, including both organic shock loads and hydraulic shock loads. The waste used in the SBR operation in this research is urea fertilizer wastewater originating from a urea fertilizer industry in West Java, Indonesia. The parameters to be tested were COD, MLVSS, DO, pH, temperature, turbidity, and ammonia concentration. The results showed that the efficiency of reducing ammonia levels under normal loading with a flow rate of 300 mL/day was 99.5%, whereas when given a shock load of 600 mL/day, an efficiency of 98% was obtained. This proves that SBR can handle shock loads even though its efficiency slightly decreases.
The tofu industry produces liquid waste containing high organic compounds. Organic compounds in liquid waste can threaten aquatic ecosystems if discharged directly into water bodies. One of the most effective wastewater treatment systems is the treatment using Anaerobic Sequencing Batch Reactor (ASBR). Besides being able to reduce the content of organic compounds, ASBR can produce biogas, and its decomposing microorganisms do not flow into the effluent stream. The purpose of this study was to evaluate the performance of ASBR at an effective reactor volume according to the design. This is because the use of ASBR in previous studies had not reached the operational stage and did not use an effective volume reactor. The stages of waste treatment using ASBR include the seeding, acclimatization, and operation stages. Waste treatment took place at room temperature in the reactor with an effective volume of 6 L. The operating parameters tested were MLVSS, COD, BOD, pH, and cumulative biogas volume. The results obtained show that the seeding process took 56 days, acclimatization took 10 days, and the operation lasted for 17 days. The efficiency of reducing COD concentration was 60%, the efficiency of reducing BOD concentration was 35.65%, and the cumulative volume of biogas produced was 24,120 mL at the operating stage. The use of the ASBR system at an effective volume of 6 L resulted in the successful processing of tofu liquid waste. Abstrak. Industri tahu menghasilkan limbah cair yang mengandung senyawa organik yang tinggi. Senyawa organik dalam limbah cair dapat mengancam ekosistem perairan apabila dibuang langsung ke badan air. Salah satu sistem pengolahan limbah cair yang efektif yaitu pengolahan menggunakan Anaerobic Sequencing Batch Reactor (ASBR). Selain mampu menurunkan kandungan senyawa organik, ASBR dapat menghasilkan biogas dan mikroorganisme pengurainya tidak ikut mengalir dalam aliran efluen. Tujuan dari penelitian ini adalah untuk mengevaluasi kinerja ASBR pada volume efektif reaktor sesuai rancangan desain. Hal ini dikarenakan pada penggunaan ASBR pada penelitian sebelumnya belum berhasil dilaksanakan sampai pada tahap pengoperasian dan tidak menggunakan volume efektif reaktor. Tahapan pengolahan limbah menggunakan ASBR meliputi tahap pembibitan (seeding), aklimatisasi, dan pengoperasian. Pengolahan limbah berlangsung pada temperatur ruang dalam reaktor dengan volume efektif sebesar 6 L. Parameter operasi yang diuji yaitu MLVSS, COD, BOD, pH, dan volume biogas kumulatif. Hasil yang diperoleh menunjukkan proses seeding berlangsung selama 56 hari, aklimatisasi selama 10 hari, dan pengoperasian selama 17 hari. Efisiensi penurunan konsentrasi COD sebesar 60%, efisiensi penurunan konsentrasi BOD sebesar 35,65%, serta volume biogas kumulatif yang dihasilkan sejumlah 24.120 mL pada tahap pengoperasian. Penggunaan sistem ASBR pada volume efektif sebesar 6 L menghasilkan keberhasilan pengolahan limbah cair tahu.
