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Rahayu Handayani
Evaluasi kinerja dan optimasi instalasi pengolahan limbah cair (IPLC) gedung perkantoran PT Pacific Paint dalam penurunan amonia = Evaluation and optimization sewage treatment plant (STP) performance of PT Pacific Paint in ammonia removal
"Peraturan Gubernur Provinsi DKI Jakarta Nomor. 122 Tahun 2005 tentang Pengolahan Air Limbah Domestik memiliki batasan konsentrasi amonia pada air buangan sebesar 10 mg/l. Namun, beberapa instalasi pengolahan limbah cari (IPLC) belum mampu mencapai angka tersebut karena nitrifikasi terhambat jika konsentrasi oksigen terlarut tidak mencukupi. Tujuan dari penelitian ini adalah mengevaluasi kinerja IPLC terkait masalah amonia pada efluen yang masih melebihi baku mutu dengan mengoptimalisi konsentrasi oksigen pada unit aerasi hingga 2- 4 mg/l melalui reaktor aerasi skala laboratorium. Hasil dari evaluasi IPLC adalah beban hidrolis masih memenuhi desain awal sebesar 10,7 m3/ hari, sedangkan beban organik yang masuk ke IPLC adalah 34 g/m3/hari. Hasil penelitian dengan reaktor aerasi skala laboratorium menunjukkan optimasi dengan meningkatkan konsentrasi oksigen terlarut mampu menurunkan amonia pada hari ke-0 sebesar 77,4 mg/l dengan efisiensi penurunan hingga 70%, dengan hasil pada hari ke-14 mencapai 21,4 mg/l. Agar amonia pada efluen memenuhi baku mutu, optimasi menggunakan pengolahan tambahan seperti unit klorinasi atau penambahan unit ion exchange, dapat dijadikan sebagai salah satu pilihan pengolahan.
Regulation of DKI Jakarta Province Government No. 122 in 2005, concerning treatment of domestic wastewater, has an ammonia discharge limit of 10 mg/l. However, some sewage treatment plants (STP) do not meet this regulation yet, since nitrification process is inhibited when the presence of dissolved oxygen (DO) is in inadequate amount. The purpose of this study is to evaluate the performance of STP in case of the ammonia concentration still higher than the discharge limit and to optimize the DO concentration in aeration tank about 2 to 4 mg/l through a laboratory scale reactor. The evaluation result indicates that hydraulic loading is about 10,7 m3/day which still meets the design criteria, while the organic loading is about 34 g/m3/day. On the other hand, the result from labscale aeration reactor shows the reduction of ammonia from day-0 (77,4 mg/l) up to day-14 (21,4 mg/l) with the efficiency of ammonia removal of 70%. In order for the discharge of ammonia to meet the discharge limit, optimization through additional treatments such as chlorination unit or ion exchange unit can be one of wastewater treatment alternative."
Depok: Fakultas Teknik Universitas Indonesia, 2012
S42617
UI - Skripsi Open  Universitas Indonesia Library
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Ghandes Evana
Evaluasi & re - desain instalasi pengolahan limbah cair (IPLC) domestik (Studi kasus: IPLC Gedung Manggala Wanabakti) = Evaluation & redesign of domestic sewage treatment plant (STP), (Case study STP at Manggala Wanabakti office building)
"Gedung Perkantoran Manggala Wanabakti di Jakarta Pusat telah mengalami peningkatan jumlah populasi karyawan dan perubahan peruntukkan ruang, sehingga berdampak signifikan pada produksi limbah cair yang dihasilkan. Akibatnya, Instalasi Pengolahan Limbah Cair (IPLC) yang digunakan pada gedung tersebut mengalami peningkatan beban hidrolis & organik. Evaluasi ini dilakukan untuk mengetahui kinerja IPLC berkaitan dengan permasalahanpermasalahan yang terjadi di lapangan, untuk selanjutnya merekomendasikan redesain bagi perbaikan IPLC tersebut.
Hasil dari evaluasi adalah IPLC belum perlu diubah dimensinya hingga debit influent mencapai 385 m3/hari. Akan tetapi, alatalat vital yang tidak berfungsi pada unit-unit pengolahan sangat mempengaruhi proses pengolahan air limbah, sehingga perlu untuk dilakukan perbaikan. Parameter-parameter lain seperti kebutuhan udara aerasi, resirkulasi lumpur, dan pembuangan lumpur perlu dikontrol secara rutin nilai debitnya dan disesuaikan dengan kriteria desain yang ada untuk menjaga efektivitas proses pengolahan yang terjadi.
Manggala Wanabakti Office Building in Central Jakarta has experienced an increase in the number of employees and changed in designated spaces, so it has a significant impact on the wastewater generated. As a result, Sewage Treatment Plant (STP) which is used in the building increased in hyraulic and organic load. The evaluation was conducted to evaluate the performance of STP related to the problems that occur in the field, to further recommend the redesign for the improvement of STP.
The results of this evaluation is the STP doesn't need to be resized in dimension yet until the wastewater inflow reaches 385 m3/day. However, vital equipments which are not working properly and some have been broke down affects greatly on the wastewater treatment process, so it needs to be repaired. Other parameters such as aeration air demand, recycle sludge, and wasted sludge needs to be controlled on a regular basis and adjusted with the design criteria to maintain the effectiveness of treatment processes."
Depok: Fakultas Teknik Universitas Indonesia, 2010
S50628
UI - Skripsi Open  Universitas Indonesia Library
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Rakaputra
Evaluasi unit dan proses penghilangan amonia secara biologis (moving bed biofilm reactor) skala plant pada instalasi pengolahan air minum: studi kasus: IPA 3 PT. XYZ, Kota Jakarta = Unit and process evaluation of biological ammonia removal (moving bed biofilm reactor) at water treatment plant: case study: IPA 3 PT. XYZ, Kota Jakarta
"Pencemaran air limbah domestik telah menyebabkan kontaminasi terhadap air Sungai Krukut. Tingginya pencemaran air Sungai Krukut berupa Amonia (0.36 – 3.9 mg/L)  TSS (123.4 – 172 mg/L), dan COD (20.5 – 27.2 mg/L) telah melampaui syarat mutu Kelas I air baku air minum berdasarkan PP No. 82 Tahun 2001. Oleh karenanya, diterapkan pengolahan biologis Moving Bed Biofilm Reactor sebagai pre-treatment IPAM karena sifat ramah lingkungan dan kemampuan mereduksi beban pencemar organik dengan baik. Untuk mereduksi beban organik tersebut, dilakukan pendekatan skala plant. Pembubuhan bahan kimia (pH Adjuster) diyakini dapat memberikan pengaruh signifikan terhadap kinerja MBBR lewat nutrient yang dikandungnya. Penelitian ditinjau dengan dua tipe pembubuhan bahan kimia yaitu Soda Ash dan Lime Milk. Didapatkan bahwa removal tertinggi terjadi dengan pembubuhan Lime Milk dengan kemampuan reduksi 41.9±0,14% Amonia; 78.3±0.03% TSS; dan 22.2 ±0,04% COD. Karena terbatasnya HRT, rata-rata konsentrasi efluen Amonia dan COD tidak memenuhi baku mutu sehingga perlu adanya modifikasi proses.
The domestic wastewater has caused contamination into Krukut River water. High contamination of Krukut River such as Ammonia (0.36 – 3.9 mg/L)  TSS (123.4 – 172 mg/L), and COD (20.5 – 27.2 mg/L) has exceeded the standard of Class I Raw Water for Drinking Water based on Government Regulation Number 82 Year 2001. Therefore, the biological treatment using Moving Bed Biofilm Reactor has applied for Drinking Water Treatment Plant processing due to its environmental friendly property and its ability to reduce the organic pollutant really well. To see the implementation of organic load reduction, a plant-scale approach is carried out. Affixing chemicals (pH Adjuster) is believed to have a significant influence on the performance of MBBR through the nutrients they contain. The research was reviewed with two types specifically Soda Ash and Lime Milk. It was found that the highest removal efficiency occurred at Lime Milk pH Adjuster with the reduction capability of 41.9±0,14% Ammonia; 78.3±0.03% TSS; dan 22.2 ±0,04% COD. Because of the limited HRT, the average concentration of Ammonia effluent and COD does not meet the quality standard so there is a need for process modification."
Depok: Fakultas Teknik Universitas Indonesia, 2019
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UI - Skripsi Membership  Universitas Indonesia Library
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Epifani Satiti
Identifikasi dan karakterisasi limbah cair serta evaluasi instalasi pengolahan air limbah (IPAL) pasar tradisional (Study kasus: Pasar Tradisional Glodok, Jakarta Barat) = Identification and characterization of traditional market wastewater and evaluation of its sewage treatment plant (Case study : Glodok Traditional Market, West Jakarta)
"The purposes of this research are to identify & characterize the wastewater, discharged from a traditional market and also to evaluate its Sewage Treatment Plant performance. Case study is done in Glodok Traditional Market from November until December 2010. Wastewater identification and characterization took place in wet lot, which consist of fish lot, chicken lot, and meat lot. The source of fish lot wastewater are fish washing and rinsing, shrimp shell and squid cleaning, melting ice cube from fish storage, and hand washing from the seller itself; in chicken lot, wastewater is discharge from chicken slaughter; while in meat lot, the wastewater is released from washing cow stomach wall activities (in the making of tripe).
Result of the research in identification showed that the discharge of waste water can be identified using flow rate based on selling volume. Meanwhile, the result of characterization are: Fish lot : pH = 6.153, TSS = 786.667 mg/L, Total N = 123.330, Ammonia = 101.333, Total P = 24.981, BOD = 1109.388, COD = 2037.248, Oil and grease = 1004.5 ; Chicken lot : pH = 5.893, TSS = 666.667 mg/L, Total N = 75.557 mg/L, Ammonia = 54 mg/L, Total P = 16.247 mg/L, BOD = 598.963 mg/L, COD = 1392.304 mg/L, oil and grease = 518 mg/L; Meat lot : pH = 10.553 mg/L, TSS = 460 mg/L, Total N = 32.720 mg/L, Ammonia = 12 mg/L, Total P = 9.43 mg/L, BOD = 100.031 mg/L, COD = 1536.240 mg/L, oil and grease = 668 mg/L.
Result of STP evaluation showed that STP plan which is made based on office and hotel biological loading causing the performance of STP is not optimum. It can be displayed from the value of TSS and oil & grease of the effluent, whose not meet by the quality standard of Kepmenlh 112 tahun 2003. The low performance of STP also can be seen from high amount of ammonia in effluent because the process itself only can remove BOD without followed by nitrification."
Depok: Fakultas Teknik Universitas Indonesia, 2011
S50686
UI - Skripsi Open  Universitas Indonesia Library
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Atikah Mutia Desiana
Pengaruh pengembangan kapasitas terminal bandara terhadap kinerja instalasi pengolahan air limbah Bandara Internasional Soekarno Hatta = Evaluation influence of airport development on the performance of sewage treatment plant in Soekarno Hatta International Airport
"Pertumbuhan lalu lintas udara mendorong PT. Angkasa Pura II melakukan pengembangan berupa grand design Bandara Internasional Soekarno Hatta. Pengembangan ini berdampak pada peningkatan beban pengolahan air limbah yang masuk ke STP-745. Penelitian ini dilakukan untuk mengetahui karakteristik air limbah, kinerja STP eksisting, dan proyeksi peningkatan beban air limbah yang masuk ke STP sampai tahun 2030. Debit inlet STP tahun 2013 adalah 7.289 m3/hari dan debit outlet adalah 5.691 m3/hari.
Hasil proyeksi tahun 2030 menunjukkan debit air limbah meningkat sebesar 14.735 m3/hari. Hasil evaluasi menunjukkan waktu detensi pada unit grit and grease remover, aerasi dan sedimentasi kondisi ekesisting belum memenuhi kriteria desain. Unit pengolahan STP-745 masih dapat mengolah air limbah sampai tahun 2030. Pada unit aerasi dilakukan penambahan nilai MLSS menjadi 3 kg/m3 dan pada unit sedimentasi rasio QR/Q ditingkatkan menjadi 100 agar kinerja pengolahan lebih optimal. Hasil analisa karakteristik efluen STP menunjukkan kualitas efluen berada di bawah baku mutu pengelolaan air limbah domestik.
The growth of air traffic motivates PT. Angkasa Pura II in doing a grand design in Soekarno Hatta International Airport. The grand design affects the increase of wastewater load that is treated STP 745 Sewage Treatment Plant 745 . This research is aimed to study the characteristic of wastewater, the existing STP performance, and projecting the increase of wastewater load that enters the STP until 2030. STP inlet flow in 2013 was 7.289 m3 day and outlet discharge was 5.691 m3 day.
The projection result until 2030 shows the increase of wastewater discharge is 14.735 m3 day. The result of evaluation shows detention time in grit and grease remover, aeration and sedimentation unit of existing conditions are not matching the design criteria. The existing STP is still capable to treat wastewater until 2030. In the aeration unit, MLSS value is increased to 3 kg m3 and for sedimentation unit, QR Q ratio is increased to 100 in order to optimize STP performance. Result from analyzing the effluent characteristics shows that the effluent quality is still in the range as standardized by domestic wastewater management."
Depok: Fakultas Teknik Universitas Indonesia, 2014
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Budi Setiawan
Evaluasi kinerja instalasi pengolahan air bersih (Studi Kasus: IPA 2 PT. SS, Serang) = Performance evaluation water treatment plant (Case Study: WTP 2 PT. SS, Serang)
"Air merupakan kebutuhan utama manusia, baik secara langsung maupun tidak langsung. Dalam memenuhi kebutuhan manusia, terdapat berbagai sektor industri yang menghasilkan produk-produk yang dibutuhkan untuk menunjang kehidupan. Dalam produksinya, industri tersebut memiliki pabrik yang juga menggunakan air untuk produksi ataupun konsumsi. PT. SS yang berlokasi di Serang menjadi penyedia jasa pengolahan air bersih agar air yang didapatkan dari sumber air memiliki kualitas yang baik dan dapat digunakan oleh pabrik-pabrik di daerah tersebut. Dalam pelaksanaannya, debit yang dihasilkan tidak sesuai dengan perencanaan sehingga perlu dilakukan evaluasi untuk meninjau kuantitas dan kualitas air yang diproduksi oleh IPA 2 PT. SS agar dapat memenuhi kebutuhan air dengan baik. Tahapan evaluasi dilakukan dengan melakukan pengumpulan data primer dan sekunder, wawancara, dan observasi di lapangan. Kemudian membandingkan kinerja unit pengolahan berdasarkan data eksisting yang didapatkan dengan data yang telah diolah. Hasilnya akan menjadi bahan untuk mengevaluasi IPA 2 PT. SS dan merencanakan langkah-langkah yang dapat dilakukan untuk mengoptimalkan kinerja IPA. Dengan debit rencana 200 liter/detik, debit yang beroperasi optimal saat ini hanya berkisar antara 100-150 liter/detik. Hasil evaluasi menunjukkan terdapat beberapa kriteria yang sudah sesuai dengan parameter, namun terdapat beberapa kriteria yang belum sesuai. Dengan demikian, IPA 2 PT. SS dapat mencapai debit pengolahan 200 liter/detik dengan beberapa penyesuaian. Perlu adanya pembaruan standar baku mutu air dari Permenkes 416/1990 menjadi Permenkes 492/2010.
Water is a major human need, both directly and indirectly. In meeting human needs, there are various industrial sectors that produce products needed to support life. In production, the industry has factories that also use water for production or consumption. PT. SS, located in Serang, provides water treatment services so that the water obtained from water sources have good quality and can be used by factories in the area. In its implementation, the water produced is different with the design so it needs to be evaluated to review the quantity and quality of water produced by PT. SS in order to fulfill the water needs properly. The evaluation stage is carried out by collecting primary and secondary data, interviews, and field observations. Then the performance of the processing unit based on existing data obtained will be compared with the data that has been processed. The results will be used for evaluating WTP 2 of PT. SS and plan the steps that can be taken to optimize the performance of Water Treatment Plant. With a total discharge plan of 200 liter/second, the current operating optimal flow is only around 100-150 liter/second. The evaluation results show that there are several criteria that are in accordance with the parameters, but there are some criteria that are not appropriate. Thus, WTP 2 PT. SS can reach a processing discharge of 200 liters / second with some adjustments. There is a need to update water quality standards from Permenkes 416/1990 to Permenkes 492/2010."
Depok: Fakultas Teknik Universitas Indonesia, 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Ghina Aldila Cahyani
Evaluasi Kinerja Instalasi Pengolahan Air Minum (IPAM) Cikokol, PT Tirta Kencana Cahaya Mandiri = Evaluation Performance of Water Treatment Plant (WTP) Cikokol, PT Tirta Kencana Cahaya Mandiri
"Mengacu pada Rencana Pembangunan Jangka Menengah Daerah (RPJMD) Kabupaten Tangerang yaitu meningkatkan cakupan pelayanan SPAM sebesar 65% pada tahun 2023, salah satu langkah mewujudkan rencana tersebut dengan meningkatkan kapasitas penyerapan IPAM Cikokol sebesar 300 l/s sehingga kapasitas debit IPAM Cikokol dari 1275 l/s menjadi 1575 l/s. Penelitian ditunjukan untuk mengevaluasi kinerja instalasi pengolahan dari segi kuantitas dan kualitas pada kapasitas debit eksisting sebesar 1275 l/s dan pada kapasitas debit setelah peningkatan debit sebesar 1575 l/s. Metode evaluasi yang dilakukan pada penelitian ini terdiri dari proyeksi kebutuhan air, analisis kualitas air baku dan produksi, dan evaluasi unit instalasi. Hasil evaluasi menunjukan bahwa terdapat beberapa kinerja unit instalasi yang belum memenuhi standar/kriteria desain yang ada diantaranya unit flokulasi, sedimentasi, dan filtrasi. Meski begitu dari segi kualitas air produksi, seluruh parameter air minum masih memenuhi peraturan baku mutu yang ada. Berdasarkan proyeksi kebutuhan air wilayah pelayanan IPAM Cikokol pada tahun 2030 dengan debit 1575 l/s hanya memenuhi 21% tingkat pelayanan dari 11 kecamatan yang dilayani oleh IPAM Cikokol.
Refer to the Tangerang Medium-term Development Plan (RPJMD) which is to increase the coverage of SPAM services by 65% in 2023, one of the program to realization those plan is to increase the capacity of Cikokol WTP in the amount of 300 l/s from 1275 l/s to 1575 l/s. This research is purposed to evaluate the performance of installation unit in terms of quantity and quality in the existing capacity of 1275 l/s and the increased capacity of 1575 l/s. Research methods include the water demand projections, analysis of raw and production water quality, and evaluation if installation units. From the evaluation result, known that there are installation units that not eligible with standard criteria including flocculation, sedimentation, and filtration units. Nevertheless the water production quality still comply the existing quality standards. Based on the water demand projection of WTP Cikokol service area with capacity 1575 l/s in 2030 only obtain 21% of the service levels in 11 districts served by WTP Cikokol."
Depok: Fakultas Teknik Universitas Indonesia, 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Yudi Hadisaputra
Evaluasi dan pengoptimalan kinerja pengolahan pada instalasi pengolahan air minum domestik: studi kasus: IPA Pulo Gadung PDAM Aetra Kota Jakarta = Evaluation and optimization of treatment performance in municipal drinking water treatment plant: case study: IPA Pulo Gadung PDAM Aetra Jakarta
"ABSTRAK
Air bersih merupakan salah satu kebutuhan mendasar bagi manusia. Saat ini, IPA Pulo Gadung dapat mengolah debit air sebesar 4.200 L/detik. Tujuan dari penelitian ini adalah 1 mengevaluasi desain unit pengolahan terhadap kriteria desain, 2 mengevaluasi kualitas air baku dan air bersih, 3 mengevaluasi efisiensi kinerja unit pengolahan, serta 4 menentukan debit pengoptimalan. Untuk mengetahui tingkat kinerja kualitas IPA Pulo Gadung, maka dilakukan pengujian kualitas air, yaitu kekeruhan SNI 06-6989.25-2005, E. Coli Most Probable Number, zat organik SNI 06-6989.22-2004, dan COD Standard Methods: 5220 D serta jar test. Selain itu, untuk mengetahui tingkat kinerja kuantitas, maka dilakukan evaluasi desain terhadap kriteria desain dan rancangan pengoptimalan kapasitas. Berdasarkan evaluasi desain, banyak aspek yang tidak memenuhi kriteria desain. Berdasarkan parameter COD, pada PP No. 82 Tahun 2001, air baku yang digunakan IPA Pulo Gadung tergolong dalam air Kelas IV air untuk mengairi pertanaman. Air bersih hasil pengolahan, berdasarkan Permenkes No. 492 Tahun 2010, memiliki beberapa parameter kualitas air yang tidak memenuhi standar tersebut. Unit mixing well efektif dalam menghilangkan E. Coli 47,7, sedimentasi dan filtrasi menghilangkan kekeruhan 93,05 dan 97,32, serta reservoir menghilangkan E. Coli 73,04. Secara keseluruhan, IPA Pulo Gadung dapat menghilangkan kekeruhan sebesar 99,83, E. Coli sebesar 96,39, organik sebesar 40,16, dan COD sebesar 16,57. Dari uji jar test, koagulan optimal untuk air IPA Pulo Gadung adalah koagulan PAC 20 ppm. Dengan mengacu pada kriteria desain, debit optimal masing-masing unit adalah intake sebesar 9,33 m3/detik, saringan kasar 1,09 m3/detik, saringan halus 13,44 m3/detik, grit chamber 4,86 m3/detik, pompa 7,65 m3/detik, mixing well 18,9 m3/detik, flokulasi 3,09 m3/detik, sedimentasi 5,83 m3/detik, filtrasi 12 m3/detik, dan reservoir 16,57 m3/detik. Kesimpulannya adalah kinerja pengelolaan kualitas air IPA Pulo Gadung sudah baik dan kapasitasnya masih dapat ditingkatkan.
ABSTRACT
Clean water is one of the basic needs for human beings. Currently, IPA Pulo Gadung can treat 4,200 L sec of raw water. The objectives of this study are 1 to evaluate the design of the processing unit based on design criteria, 2 to evaluate the quality of raw and clean water, 3 to evaluate the efficiency of processing unit removal rate, and 4 to determine the flowrate optimization. To determine the removal rate of IPA Pulo Gadung, the water qualities to be tested are turbidity SNI 06 6989.25 2005, E. Coli Most Probable Number, organic matter SNI 06 6989.22 2004, and COD Standard Methods 5220 D and jar test. To determine the level of quantity performance, the unit design was evaluated to design criteria and determined the flowrate optimization. Based on design evaluation, many aspects do not meet the design criteria. Based on COD parameters, in PP No. 82 of 2001, raw water used by IPA Pulo Gadung classified in Class IV water water to irrigate crop. Clean water produced, based on Permenkes No. 492 of 2010, has several water qualities that do not meet the standard. The mixing well unit is effective in removing E. Coli 47.7, sedimentation and filtration removing turbidity 93.05 and 97.32, and reservoir removing E. Coli 73.04. Overall, IPA Pulo Gadung can eliminate with the removal rate of turbidity 99.83, E. Coli 96.39, organic matter 40.16, and COD 16.57. From jar test, optimal coagulant for IPA Pulo Gadung is PAC 20 ppm. With reference to the design criteria, the optimal flowrate of each unit is intake 9.33 m3 sec, coarse screen 1,09 m3 sec, fine screen 13,44 m3 sec, grit chamber 4.86 m3 sec, pumping system 7.65 m3 sec, mixing well 18.9 m3 sec, flocculation 3,09 m3 sec, sedimentation 5.83 m3 sec, filtration 12 m3 sec, and reservoir 16.57 m3 sec. The conclusion is that the performance of water quality removal rate of IPA Pulo Gadung is good and the capacity can still be improved."
2018
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Meliala, Verenia Sembiring
Analisis kenaikan konsentrasi amonia pada proses pengolahan air limbah domestik : studi kasus: Sewage Treatment Plant Pulau Pabelokan, CNOOC SES Ltd. = Analysis of ammonia concentration increase in domestic wastewater treatment process : case study: Sewage Treatment Plant Pabelokan Island, CNOOC SES Ltd.
"Sebagai perusahaan minyak dan gas bumi, CNOOC SES Ltd. memiliki beberapa wilayah kerja, salah satunya adalah Pulau Pabelokan. Pada pulau tersebut berlangsung aktivitas yang menghasilkan air limbah, yaitu aktivitas di dapur, tempat laundry, kamar mandi, dan toilet. Sebelum dialirkan ke badan air terdekat, air limbah tersebut diolah di sewage treatment plant yang terdiri dari beberapa unit, yaitu ash tank, grease trap, aeration tank, abiotech tank, dan activated carbon tank. Unit abiotech tank merupakan unit pengolahan air limbah secara biologis dengan prinsip attached growth reactor. Keberadaan biofilm pada tangki ini memungkinkan terjadinya kombinasi reaksi nitrifikasi-denitrifikasi yang berdampak pada penurunan konsentrasi amonia. Namun, berdasarkan data harian kualitas air limbah STP Pabelokan, setiap hari terjadi peningkatan konsentrasi amonia sebesar rata-rata 20-30% setelah air limbah melalui proses pengolahan di unit abiotech tank. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang dapat memicu terjadinya kenaikan konsentrasi amonia tersebut dan memberikan solusi pencegahan. Kegiatan operasional pihak pengelola STP Pabelokan yang diduga dapat menjadi faktor penyebab kenaikan konsentrasi amonia adalah penambahan 0,2 kg nutrisi dan 0,5 kg mikroorganisme ke unit aeration tank. Hasil analisis dampak pemberian nutrisi melalui perhitungan stoikiometri dengan reaksi nitrifikasi membuktikan adanya peningkatan konsentrasi amonia dalam air limbah yang diolah sebesar rata-rata 15-19%. Sedangkan penambahan mikroorganisme berdampak pada peningkatan angka kematian mikroorganisme di unit abiotech tank. Mikroorganisme yang mati berdampak pada peningkatan konsentrasi amonia karena mikroorganisme tersebut terhidrolisis menjadi senyawa-senyawa sederhana, salah satunya amonia. Solusi yang dapat diberikan berdasarkan analisis yang telah dilakukan adalah mengalihkan pemberian nutrisi dan mikroorganisme yang pada awalnya melalui unit aeration tank menjadi langsung ke unit abiotech tank.
As an oil and gas company, CNOOC SES Ltd. has some working areas, one of them is Pabelokan Island. Activities that produce wastewater originate from the kitchen, laundry, bathroom, and toilet. Before dumped into the sea, the wastewater is treated at the sewage treatement plant that consists of several units: ash tank, grease trap, aeration tank, abiotech tank, and activated carbon tank. Abiotech tank is a biological wastewater treatment that adopts attached growth reactor principle. The presence of biofilm in the tank allows the combination of nitrification and denitrification which can reduce the ammonia concentration. However, based on the daily report of wastewater quality, it is known that the increase of ammonia concentration consistently occurs after being processed in abiotech tank, with the increase of around 20-30%. The purposes of this study are to determine the factors that cause the increase of ammonia concentration in treated domestic wastewater at STP Pabelokan and to suggest solutions. It is estimated that the causes of the ammonia increase are the addition of 0,2 kg nutrition and 0,5 kg microorganism to aeration tank. The result of adding nutrition to nitrification reaction (done with stoichiometry calculation) gave evidence that by adding nutrition causes an increase in the concentration of ammonia around 15-19%. Whereas the addititon of microorganism increases the dead rate of microorganism in abiotech unit. The dead microorganisms can trigger an increase of ammonia concentration because their body will be hydrolyzed into several compounds, one of them is ammonia. The solution can be given based on those analysis is to shift the distribution of nutrient and microorganism that initially given to aeration tank, directly to abiotech tank."
Depok: Fakultas Teknik Universitas Indonesia, 2013
S44018
UI - Skripsi Membership  Universitas Indonesia Library
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Kanty Driantami
Perbandingan kinerja penyisihan amonia nitrogen dari air limbah domestik dengan menggunakan membrane aerated biofilm reactor (MABR) dan bio-kleen sewage system di PT. Gs battery, Sunter = Perfomance comparison of ammonia nitrogen removal from domestic wastewater by using membrane aerated biofilm reactor (MABR) and bio kleen domestic sewage system in PT. Gs battery, Sunter
"Kandungan NH3-N dalam air limbah yang cukup tinggi jika dibuang ke badan air dapat menyebabkan eutrofikasi yang berdampak negatif terhadap ekosistem akuatik. Membrane aerated biofilm reactor MABR merupakan teknologi pengolahan air limbah yang mampu mengurangi konsentrasi NH3-N dalam air limbah domestik. Penelitian ini melakukan pengamatan mengenai kinerja penyisihan konsentrasi NH3-N dalam air limbah domestik menggunakan MABR. Air limbah domestik mengandung konsentrasi NH3-N sebesar 73 mg/l ndash; 104.8 0.12 kg NH3-N/m3.d - 0.24 kg NH3-N/m3.d dan COD sebesar 332 - 468 mg/l 0.56 kg COD/m3.d - 1.05 kg COD/m3.d . MABR disuplai oleh oksigen dengan tekanan sebesar 20 kPa dan penelitian dilakukan dengan tiga variasi waktu detensi HRT berbeda yaitu 8, 10, dan 12 jam. Setelah 33 hari, hasil menunjukkan rasio COD/N berkisar antara 3.9 ndash; 5.7 dengan maksimum efisiensi penyisihan COD dan NH3-N terjadi ketika HRT 12 jam yang mencapai, masing-masing 88 dan 89.58 . Hal ini mengindikasi, bahwa NH3-N dapat dihilangkan menggunakan MABR pada rasio COD/N yang rendah. Selan itu, bakteri autotrof yang berperan untuk mengoksidasi NH3-N menjadi NO2- da NO3- memiliki laju pertumbuhan yang lebih lambat dibandingkan dengan bakteri heterotrof. Sehingga, HRT yang semakin lama akan memberikan keuntungan untuk proses nitrifikasi dan efisiensi penyisihan NH3-N yang tinggi telah dapat tercapai.
High concentration of NH3 N in wastewater discharges from Sewage Treatment Plant can causes eutrophication of the surface water that have the negative impacts for aquatic ecosystems. Membrane aerated biofilm reactor MABR has been proposed as a wastewater technology to reduce NH3 N concentration in domestic wastewater. This study observed the performance of NH3 N removal in domestic wastewater using MABR. Domestic wastewater contains concentration of NH3 N from 73 mg l to 104.8 mg l 0.12 kg NH3 N m3.d to 0.24 kg NH3 N m3.d and COD from 332 mg l to 468 mg l 0.56 kg COD m3.d to 1.05 kg COD m3.d . MABR was supplied by oxygen at pressure of 20 kPa and study performed for 3 hydraulic loading rate HRT variations, which were 8, 10, and 12 hours. After 33 days of running, the result showed COD N ratio were about 3.9 to 5.72 with maximum efficiency of COD and NH3 N removal occurred when HRT 12 hours, reached 88 and 89.58 respectively. This indicated, that NH3 N could removed by MABR at low COD N ratio. Furthermore, autrotrophs bacteria that responsible for oxidized NH3 N to NO2 and NO3 have slower growth rates compared with heterotrophs bacteria. Thus, the longer HRT provided benefit for nitrification process and high NH3 N removal efficiency has been achieved."
Depok: Fakultas Teknik Universitas Indonesia, 2017
S67049
UI - Skripsi Membership  Universitas Indonesia Library
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