Post-treatment of anaerobic baffled reactor effluent using modified up-flow anaerobic filter

2021 ◽  
Author(s):  
Anie Yulistyorini ◽  
Rovita Ika Purwaningsih ◽  
Mujiyono
Keyword(s):  
Post Treatment ◽  
Anaerobic Baffled Reactor ◽  
Anaerobic Filter

Ozonation followed by coagulation/flocculation and flotation as post-treatment of the effluent from an anaerobic baffled reactor treating domestic sewage

2001 ◽  
Vol 43 (8) ◽  
pp. 99-106 ◽  
Author(s):  
M. M. Marchioretto ◽  
M. A. Reali
Keyword(s):  
Ph Value ◽  
Domestic Sewage ◽  
Post Treatment ◽  
Dissolved Air Flotation ◽  
Anaerobic Baffled Reactor ◽  
Ozone Dose ◽  
Apparent Color ◽  
Consequent Reduction ◽  
High Degree ◽  
Dissolved Air

This paper reports on the use of ozonation and dissolved air flotation as a post-treatment of the effluent from an anaerobic baffled reactor treating domestic sewage. After preliminary essays, the present experiment was performed fixing coagulant doses and, to all of them, some ozone doses were investigated. Later, the pH value and the ozone dose which provided the best removal efficiencies of all the parameters involved were tested, changing the coagulant dose and varying, for each of them, two ozone doses: the zero one and the optimum. Considering the best conditions of coagulation/flotation (ferric chloride dose of 65 mg.L−1: and pH around 5.5), the ozone dose application of 6 mg.L−1 led to a significant level in the removal efficiency of COD (80.4%), BOD (79.0%), total phosphate (93.4%), apparent color (91.9%) and turbidity (97.0%), demonstrating that the system seems to be efficient and capable of promoting a high degree of sewage post-treatment, reducing the coagulant dose until 30%, with a consequent reduction in the sludge generation.

scholarly journals APLIKASI PENGOLAHAN AIR LIMBAH INDUSTRI TAPIOKA DENGAN SISTIM ABR DAN UAF

2015 ◽  
Vol 6 (1) ◽  
pp. 29-34
Author(s):  
Djarwanti Djarwanti
Keyword(s):  
Anaerobic Baffled Reactor ◽  
Anaerobic Filter

            Dalam rangka mencegah pencemaran lingkungan beberapa industri tapioka telah menerapkan IPAL dengan sistim biologi anaerob. Pada umumnya pembuatan IPAL ini tidak dilandasi kajian faktor-faktor yang mempengaruhi dalam disain reaktor,  sehingga  pemilihan jenis reaktor menjadi kurang tepat.Kajian ini bertujuan  membandingkan kelayakan teknis dan kelayakan ekonomis penerapan pengolahan air limbah tapioka dengan sistem ABR (Anaerobic Baffled Reactor) dan sistem UAF (Upflow Anaerobic Filter). Sistim ABR telah diterapkan di Sentra Sekalong dan sistim UAF diterapkan di Sentra Margoyoso, Jawa TengahData yang digunakan untuk penelitian bersumber pada hasil penelitian dan penerapan prototipe IPAL industri tapioka di sentra Sekalong dan sentra Margoyoso.Hasil penelitian menunjukkan bahwa sistem UAF layak menggantikan sistem ABR dalam pengolahan air limbah industri tapioka ditinjau dari segi teknis maupun ekonomis. Waktu tinggal proses degradasi bahan organik didalam sistim UAF lebih pendek sehingga volume bangunan lebih kecil, kebutuhan lahanpun menjadi lebih kecil. Untuk kapasitas 20 m3/hari biaya konstruksi sistem UAF lebih murah 47,77% dibanding sistem konvensional menggunakan ABR.

scholarly journals ANALISIS KONSTRUKSI INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) KOMUNAL UNTUK DAERAH PADAT PENDUDUK DI KELURAHAN BRANG BARA KECAMATAN SUMBAWA SUMBAWA BESAR

2018 ◽  
Author(s):  
Isra Junna ◽  
Zul Karnaen ◽  
Alfian Rusdi
Keyword(s):  
Input Data ◽  
Anaerobic Baffled Reactor ◽  
Anaerobic Filter

Instalasi Pengolahan Air Limbah (IPAL) komunal merupakan salah satu solusi untuk mengatasi masalah pencemaran lingkungan, dengan dibangunya bangunan konstruksi IPAL itu sendiri dapat mengurangi masalah pencemaran lingkungan hususnya masalah air limbah, untuk melalukan pembangunan konstruksi IPAL komunal tentunya melakukan beberapa proses analisis, baik pengumpulan data primer maupun skunder. data dapat diolah, dengan hasil olahan data muncullah desain konstruksi IPAL komunal yang berkapasitas 216.98 jiwa dengan debit Air limbah 20.83008 m3/hari.Untuk mendapat semua data yang diperlukan tentunya menggunakan metode, yaitu metode analisis diskriptif kuantatif dan metode analisis. Metode analisis diskriftif kuantatif digunakan untuk menggambarkan parameter-parameter yang digunakan dalam menjawab permasalahan pertama seperti kepadatan penduduk, sumber air bersih, kemiringan lereng dan topografi, metode analisis spasial digunakan untuk menentukan alternative lokasi IPAL komunal yang layak berdasarkan input data, jarak wilayah pelayanan, jarak dari sumber air bersih.Hasil olahan dari semua data dapat ditetapkan bahwa bangunan konstruksi IPAL yang dibangun tahun 2012 masih belum efisien pengolahannya dengan jumlah penduduk 178 jiwa, dengan melakukan analisis ulang dari tahun 2012-2022 didapatkan hasil analisis sebagai berikut: Pada bak Settler dari 1 meter pada bak pertama dan 0.6 meter pada bak kedua diubah menjadi 1.6 meter pada bak pertama dan 0.8 meter pada bak kedua, bak Anaerobic Baffled Reactor (ABR) dari 0.7 meter diubah menjadi 0.8 meter dan jumlah kompartemen 4 bak, bak Anaerobic Filter (AF) dari 1.1 meter diubah menjadi 1.3 meter tentunya dengan perubahan yang sangat signifikan dan konstruksi IPAL tersebut dapat menampung atau mengelolah Air limbah sebesar 20.83008 m3/hari.

Winery and distillery wastewater treatment by anaerobic digestion

2005 ◽  
Vol 51 (1) ◽  
pp. 137-144 ◽  
Author(s):  
R. Moletta
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Biogas Production ◽  
Anaerobic Treatment ◽  
Post Treatment ◽  
Cod Removal ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Fluidised Bed ◽  
Anaerobic Filter

Anaerobic digestion is widely used for wastewater treatment, especially in the food industries. Generally after the anaerobic treatment there is an aerobic post-treatment in order to return the treated water to nature. Several technologies are applied for winery wastewater treatment. They are using free cells or flocs (anaerobic contact digesters, anaerobic sequencing batch reactors and anaerobic lagoons), anaerobic granules (Upflow Anaerobic Sludge Blanket – UASB), or biofilms on fixed support (anaerobic filter) or on mobile support as with the fluidised bed. Some technologies include two strategies, e.g. a sludge bed with anaerobic filter as in the hybrid digester.With winery wastewaters (as for vinasses from distilleries) the removal yield for anaerobic digestion is very high, up to 90–95% COD removal. The organic loads are between 5 and 15 kgCOD/m3 of digester/day. The biogas production is between 400 and 600 L per kg COD removed with 60 to 70% methane content. For anaerobic and aerobic post-treatment of vinasses in the Cognac region, REVICO company has 99.7% COD removal and the cost is 0.52 Euro/m3 of vinasses.

scholarly journals Limbah Cair Tapioka, Pencemaran, dan Teknik Pengolahannya

2021 ◽  
Vol 17 (1) ◽  
pp. 73-84
Author(s):  
Herna Octivia Damayanti ◽  
Metachul Husna ◽  
Dicky Harwanto
Keyword(s):  
Sequencing Batch Reactor ◽  
Treatment Process ◽  
Batch Reactor ◽  
Liquid Waste ◽  
Literature Study ◽  
Anaerobic Baffled Reactor ◽  
Anaerobic Filter ◽  
Alternative Processing ◽  
Sodium Magnesium ◽  
The Impact

ENGLISHThe tapioca industry is one type of agro-industry that is widely developed in Indonesia. The problem that often arises due to the presence of the tapioca industries is waste pollution, especially liquid waste. Tapioca liquid waste is immediately disposed of into the river flows without any treatment process. The purpose of this paper is to provide an overview of the impact caused by the disposal of tapioca liquid waste, especially on the aquaculture environment and alternative processing technology. The research method is literature study. Tapioca liquid pollution increases the death vulnerability the biota in the ponds, namely shrimp and milkfish. The danger of tapioca liquid waste pollution can be minimized by treating the disposed liquid waste properly. Several alternatives of wastewater treatment that can be applied to minimize the impact of pollution caused by tapioca liquid waste are (1) ultrafiltration membranes can separate suspended solids; ABR (Anaerobic Baffled Reactor) and UAF (Up-flow Anaerobic Filter) systems can reduce COD concentrations; photo-catalysts can reduce COD concentrations; phytoremediation with water hyacinth can reduce BOD, COD, and CN concentrations and increase pH of tapioca wastewater; and batch sequencing reactor shows efficiency of removing HCN, BOD, COD, turbidity, sodium, magnesium, and calcium. INDONESIAIndustri tapioka merupakan salah satu jenis agroindustri yang banyak berkembang di Indonesia. Permasalahan yang sering timbul dari industri tapioka adalah pencemaran limbah, terutama limbah cair. Limbah cair tapioka langsung dibuang ke aliran sungai tanpa melewati proses pengolahan terlebih dahulu. Tujuan dari penulisan ini adalah memberikan gambaran mengenai dampak yang ditimbulkan oleh adanya pembuangan limbah cair tapioka khususnya terhadap lingkungan pertambakan serta alternatif teknologi pengolahannya. Metode yang digunakan adalah studi pustaka. Pencemaran limbah cair tapioka mengakibatkan kerawanan kematian biota yang dibudidayakan di tambak, yaitu udang dan bandeng. Bahaya pencemaran limbah cair tapioka dapat diminimalisir dengan melakukan pengolahan terhadap limbah cair yang dibuang. Beberapa alternatif pengolahan limbah cair untuk meminimalisir dampak pencemaran oleh limbah cair tapioka, yaitu (1) membran ultrafiltrasi, yang dapat memisahkan padatan tersuspensi; (2) sistem ABR (Anaerobic Baffled Reactor) dan sistem UAF (Upflow Anaerobic Filter, yang dapat menurunkan konsentrasi COD; (3) fotokatalis, yang dapat menurunkan konsentrasi COD; (4) fitoremediasi dengan eceng gondok, yang mampu menurunkan konsentrasi BOD, COD, dan CN serta meningkatkan pH limbah cair tapioka; dan (5) sistem SBR (Sequencing Batch Reactor) menunjukkan efisiensi pembuangan HCN, BOD, COD, kekeruhan, sodium, magnesium, dan kalsium.

Low-temperature post-treatment of anaerobically treated-sewage in anaerobic filter with cationic-polymer addition

2006 ◽  
Vol 53 (9) ◽  
pp. 177-184 ◽  
Author(s):  
T.A. Elmitwalli ◽  
R. Raimundo ◽  
K. Kujawa-Roelevel ◽  
G. Zeeman
Keyword(s):  
Cationic Polymer ◽  
Post Treatment ◽  
High Rate ◽  
P System ◽  
Efficient System ◽  
Anaerobic Filter ◽  
Polymer Addition ◽  
Valuable Product ◽  
The Media ◽  
The Difference

The post-treatment of domestic sewage pretreated in a 6 m3 UASB was investigated in two high-rate anaerobic filter (AF) reactors operated in parallel. The difference between the two AF reactors was only the addition of cationic polymer to the second reactor (AF + P). The reactors were operated at low temperatures, ranged between 13 and 20 °C. The media in each AF reactor consisted of vertical sheets of reticulated-polyurethane foam (RPF) with knobs. The results demonstrated that the AF + P reactor (HRT = 3 h) with cationic polymer addition (2 mg/L) was an efficient system for post-treatment. The removal efficiencies for total, suspended, colloidal and dissolved COD were, respectively, 41, 86 and 76 and 12% in the AF + P reactor and they were, respectively, 80, 97, 77 and 66% in the UASB+ (AF + P) system. The removal of total, suspended and colloidal COD in the UASB+(AF + P) system were significantly higher than those achieved in the UASB + AF system. As hardly any nutrient was removed in the UASB+(AF + P) system, the effluent after pathogen removal is a valuable product for irrigation and fertilisation to close the water and nutrients cycle.

scholarly journals Constructed wetlands as post treatment of a decanter digester followed by an anaerobic filter

2019 ◽  
Vol 14 (4) ◽  
pp. 1 ◽  
Author(s):  
Wilhan Douglas Reis ◽  
Aldecy De Almeida Santos ◽  
Eduarda Da Conceição Oliveira ◽  
João Batista Ito
Keyword(s):  
Constructed Wetlands ◽  
Physicochemical Parameters ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Post Treatment ◽  
Typha Domingensis ◽  
Mato Grosso ◽  
Anaerobic Filter ◽  
The Mean ◽  
Nitrate And Nitrite

The amount of wastewater has increased due to the considerable expansion of higher education institutions. When wastewater is released without treatment or with inefficient treatment, it causes significant water pollution. In this context, this study evaluated the performance of Constructed Wetlands as a post-treatment of a decanter digester followed by an anaerobic filter, operated with effluent from the Federal University of Mato Grosso, Cuiabá Campus, Mato Grosso State.  Four wetlands were constructed to develop the research: planted with Typha domingensis, planted with Heliconia psittacorum, planted with Pontederia parviflora, and not planted. The following physicochemical parameters were analyzed:  Color, Turbidity, pH, Temperature, Total Solids, Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Nitrogen, Sulfate, Nitrate and Nitrite. The results show an organic matter removal efficiency with mean removal results: 70% BOD5 for TCW, HCW and PCW; and COD 76% for PCW. The mean removal of total phosphorus was 78% for PCW and 92% NO-2, as macronutrients. Analysis of variance ANOVA shows significance in the results of TDS, SO4 and COD removal.

Ultrastructure of bronchopulmonary lavage cells from bovines administered 3-methylindole: II. 24 hours post-treatment

1984 ◽  
Vol 42 ◽  
pp. 202-203
Author(s):  
Amreek Singh ◽  
Judith M. McLaren ◽  
Onkar S. Atwal ◽  
Peter Eyre
Keyword(s):  
Plasma Cells ◽  
Ciliated Cell ◽  
Lavage Fluid ◽  
Treated Group ◽  
Post Treatment ◽  
Lung Edema ◽  
Ciliated Cells ◽  
Thin Sections ◽  
Variable Diameter ◽  
Cell Pellet

Introduction3-methylindole (MI), a rumen metabolite of the amino acid L-tryptophan, has been shown to produce bovine pulmonary edema and emphysema. The airways contain free and exfoliated cells. A morphologic analysis of these cells may complement the understanding of the mechanism of lung edema. Ultrastructure of the bronchopulmonary lavage (BL) cells 24 h following MI oral administration to calves is described in this experiment. The 12 hours post-treatment results were described earlier.Materials and MethodsTwo Holstein-Friesian calves were each administered an oral dose of 0.2 g MI/Kg body weight and another two calves served as controls. The animals were euthanized with sodium pentabarbitol 24 h after receiving the compound. The lungs and trachea were removed and 0.1 M sodium phosphate buffered saline was infused into the lungs through the trachea. Glutaraldehyde fixative was added to the recovered BL fluid so as to form a 1% solution. The fluid was centrifuged and the resulting cell pellet was suspended in the buffer. The procedures were repeated on the suspension; the pellet was post-fixed in osmium tetroxide and was processed by conventional methods of section preparations for TEM examination. Lung samples from caudal lobes were fixed in 1.5% glutaraldehyde to obtain tissue sections for TEM.Results and DiscussionPulmonary alveolar macrophages (AM), neutrophils, ciliated epithelial cells, globule leukocytes and plasma cells were recovered from the BL fluid of the control and Mi-administered calves. Ciliated cells and globule leukocytes could not be harvested from the controls. The AM obtained from the treated calves (Fig. 1) in comparison with similar cells from the controls were larger, and contained large membrane-limited inclusions (phagolysosomes). There was a remarkable similarity between the lavaged AM and the AM studied in thin sections of lung (cf. Fig. 1 and Fig. 2). The neutrophil was the second most abundant cell type retrieved from the lavage fluid from the calves of control or treated group. Except for scanty pseudopodia in the neutrophils obtained from the Mi-receiving calves, the cells appeared unaltered (Fig. 3). Ciliated cells were abundant in the BL fluid of Mi-ingesting calves. A heterogeneous collection of vesicles filled the ciliated cell cytoplasm (Fig. 3). Globule leukocytes were commonly observed among BL cells of treated calves. The globule leukocytes were ca. 15 μm in diameter and contained round or elliptical nuclei with conspicuous nucleoli. The cytoplasmic granules, which are a prominent feature of globule leukocytes, were electron-opaque and had a variable diameter (0.5-3.0 μm). A one-line account of globule leukocytes in the bronchi of steers administered MI has appeared. Plasma cells were rare. Ultrastructure of BL cells is compatible with their response to chemical insult by MI.

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