scholarly journals Penyisihan Kadar Amoniak dalam Limbah Cair Industri Pupuk Menggunakan Sequencing Batch Reactor

FLUIDA ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 65-72
Author(s):  
Robby Sudarman ◽  
Herawati Budiastuti ◽  
Nancy Siti Djenar ◽  
Efniarsi S. Panggalo ◽  
Ajie Nurhasyim
Keyword(s):  
Retention Time ◽  
Sequencing Batch Reactor ◽  
Hydraulic Retention Time ◽  
Batch Reactor ◽  
Liquid Waste ◽  
Ammonia Nitrogen ◽  
Ammonia Level ◽  
Fertilizer Industry ◽  
High Ammonia ◽  
Better Than

ABSTRAK  Sifat toksik nitrogen amoniak dalam limbah cair berbahaya bagi kehidupan sehingga perlu untuk dihilangkan. Pada penelitian ini penyisihan kadar amoniak yang tinggi dalam limbah cair industri pupuk dilakukan melalui proses nitrifikasi dan denitrifikasi menggunakan Sequencing Batch Reactor (SBR). Dua reaktor SBR digunakan dimana pada reaktor pertama (R1) dilakukan pengadukan dan pada reaktor kedua (R2) dilakukan aerasi. Hasil penelitian menunjukkan bahwa pada pembebanan 0,787 mg amoniak/L/hari dan Hydraulic Retention Time (HRT) 20 hari, efisiensi penyisihan kadar amoniak mampu dicapai pada kisaran 71,26%-90,91% (R1) dan 62,32% -92,21% (R2). Pengukuran pH pada HRT 20 hari berada pada rentang 8,25-8,65 pada R1 dan pH 8,34-8,73 pada R2. Pada HRT 15 hari, efisiensi penyisihan kadar amoniak efluen pada R1 menurun yaitu dari 90,89 % menjadi 86,81% dan pada R2 menurun dari 90,59% menjadi 40,99 %. Pada HRT 15 hari, efisiensi penyisihan kadar amoniak pada R1 lebih baik dibandingkan pada R2 yang disebabkan adanya penambahan aerasi pada R1 di akhir penelitian. Kata kunci: amoniak, limbah cair, industri pupuk, sequencing batch reactor   ABSTRACT  The toxic nature of ammonia nitrogen in liquid waste is dangerous for life, so it needs to be eliminated. In this study, the removal of high ammonia levels in the fertilizer industry wastewater was carried out through a process of nitrification and denitrification using the Sequencing Batch Reactor (SBR). Two SBR reactors were used where the first reactor (R1) was stirred and the second reactor (R2) was aerated. The results showed that at a load of 0.787 mg of ammonia/L/day and 20 days of Hydraulic Retention Time (HRT), the efficiencies of removal of ammonia levels were achieved in the range of 71.26%-90.91% (R1) and 62.32%- 92.21% (R2). The pH measurements at 20 days of HRT were in the range of 8.25-8.65 at R1 and pH 8.34-8.73 at R2. At 15 days of HRT, the effluent ammonia level removal efficiency at R1 decreased from 90.89% to 86.81% and at R2 decreased from 90.59% to 40.99%. At 15 days of HRT, the efficiency of ammonia level removal at R1 was better than that in R2 due to the addition of aeration to R1 at the end of the study. Keywords: ammonia, liquid waste, fertilizer industry, sequencing batch reactor

scholarly journals Partial nitritation treating nitrogen in old landfill leachate

2016 ◽  
Vol 19 (4) ◽  
pp. 39-49
Author(s):  
Nhat The Phan ◽  
Van Thi Thanh Truong ◽  
Son Thanh Le ◽  
Biec Nhu Ha ◽  
Dan Phuoc Nguyen
Keyword(s):  
Landfill Leachate ◽  
Retention Time ◽  
Sequencing Batch Reactor ◽  
Hydraulic Retention Time ◽  
Batch Reactor ◽  
Partial Nitritation ◽  
Time Operation ◽  
Nitrite Oxidizing Bacteria ◽  
Long Time ◽  
H 30

In this study, a lab-scale Partial Nitritation Sequencing Batch Reactor (PNSBR) was implemented for treating high-ammonium old landfill leachate to yield an appropriate NO2—N/ NH4+-N ratio from 1/1 to 1.32/1 mixture as a pretreatment for subsequent Anammox. The objective of this study was to determine the optimal hydraulic retention time (HRT) at different influent ammonia concentrations for 210 days. The experimental results showed that with the influent ammonia concentrations of 500, 1000, 1500 and 2000 mg/L, HRT is 12 h, 21 h, 30 h and 48 h, respectively. The range of free ammonia (FA) concentration from 17 to 44 mg/L completely inhibited nitrite oxidizing bacteria (NOB) for long time operation. The COD removal efficiency was very low (6±2) %.

Methanosarcina domination in anaerobic sequencing batch reactor at short hydraulic retention time

2013 ◽  
Vol 137 ◽  
pp. 41-50 ◽  
Author(s):  
Jingwei Ma ◽  
Baisuo Zhao ◽  
Craig Frear ◽  
Quanbao Zhao ◽  
Liang Yu ◽  
...  
Keyword(s):  
Retention Time ◽  
Sequencing Batch Reactor ◽  
Hydraulic Retention Time ◽  
Batch Reactor ◽  
Anaerobic Sequencing Batch Reactor

scholarly journals KOMBINASI PROSES KOAGULASI-FLOKULASI DENGAN SEQUENCHING BATCH REACTOR UNTUK MENURUNKAN KANDUNGAN ORGANIK PADA LIMBAH BATIK

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Novirina Hendrasarie ◽  
Firra R ◽  
Raden H Kokoh ◽  
Andika Andika
Keyword(s):  
Retention Time ◽  
Organic Material ◽  
Sequencing Batch Reactor ◽  
Hydraulic Retention Time ◽  
Batch Reactor ◽  
Organic Content ◽  
Aluminium Chloride ◽  
Coconut Shell ◽  
Second Stage ◽  
Coagulation And Flocculation

Limbah batik memiliki kandungan organik dan warna, yang sulit untuk digredasi. Tujuan penelitian ini mengembangkan teknologi Sequenching Batch Reactor (SBR) yang dimodifikasi dengan adsorben dari tempurung kelapa dan bamboo. Konsentrasi limbah batik awal, untuk COD sebesar 1965 mg/L, warna 1603 mg/L, TSS 1140 mg/L. Pelaksanaan penelitian terbagi menjadi dua tahap, yaitu tahap pertama limbah diolah menggunakan proses koagulasi dan flokulasi, selanjutnya tahap dua menggunakan Sequencing Batch Reactor. Pada tahap koagulasi-flokulasi, menggunakan koagulan PAC (Poly Aluminium Chloride). Sedangkan pada tahap dua yang menggunakan SBR, diatur Hydraulic Retention Time (HRT) dan berat adsorben (tempurung kelapa, bamboo dan zeolite). Hasil penelitian, didapatkan proses koagulasi dan flokulasi mampu menurunkan kandungan organic (BOD5 dan COD) pada kisaran 80%, Total Suspended Solid (TSS )26% dan warna 55%. Sedangkan pada SBR, didapatkan bahwa penambahan adsorben mengoptimalkan pendegradasian kandungan organic. Didapatkan pada HRT optimal 48 jam, jenis adsorben tempurung kelapa optimal menurunkan kandungan BOD5 sebesar 93%,  COD 93.7% sebesar , TSS 81% mg/L dan warna 81% mg/L.  Kata kunci: kandungan organic dan warna, koagulasi dan flokulasi, sequencing batch reactor (SBR).  The organic content and color of batik wastewater make it difficult to grade. The goal of this research was to create a modified Sequenching Batch Reactor (SBR) using adsorbents made from coconut shells and bamboo. The initial concentrations of COD, color, and TSS in batik wastewater were 1965 mg/L for COD, 1603 mg/L for color, and 1140 mg/L for TSS. The research was divided into two stages, with the first stage involving the use of coagulation and flocculation processes, and the second stage involving the use of a Sequencing Batch Reactor. PAC (Poly Aluminum Chloride) coagulant was used for the coagulation-flocculation stage. Meanwhile, the Hydraulic Retention Time (HRT) and the weight of the adsorbent (coconut shell, bamboo, and zeolite) were set in the second stage using SBR. The coagulation and flocculation processes reduced organic content (BOD5 and COD) by 80 %, total suspended solids (TSS) by 26 %, and color by 55 %, according to the results. In SBR, it was discovered that adding an adsorbent improves the decomposition of organic material. The optimal type of coconut shell adsorbent reduced the level of BOD5 by 93 %, COD by 93.7 %, TSS by 81 % mg/L, and color by 81 % mg/L at an optimal HRT of 48 hours. Keywords: Organic material and color, coagulation and flocculation, sequencing batch reactor (SBR).

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