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"Waste water treatment facility atau instalasi pengolahan air limbah merupakan salah satu komponen penunjang yang harus dimiliki oleh setiap industri dalam rangka melaksanakan kewajiban undang-undang yaitu Keputusan Mentri Negara Lingkungan Hidup dan Kehutanan No 16 tahun 2019 tentang perubahan kedua atas peraturan menteri lingkungan hidup No 5 tahun 2014 tentang baku mutu air limbah. PT Chemitra Abadi melakukan evaluasi terhadap fasilitas pengolahan air limbah yang sudah ada dan menemukan beberapa permasalahan terutama warna dan turbidity yang masih tinggi, konfigurasi sistem pengolahan yang tidak sesuai dengan semestinya. Setelah dilakukan jartest untuk menentukan dosis optimum chemical treatment yang akan digunakan maka didapat dosis optimum untuk PAC 100 ppm, Polimer anionic 7 ppm, DCA 250 ppm dan NaOH 200 ppm. Kemudian memberikan saran konfigurasi alternatif fasilitas pengolahan air limbah yang dapat digunakan dengan memanfaatkan fasilitas yang ada dengan merubah urutan proses.

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The wastewater treatment facility or wastewater treatment installation is one of the supporting components that must be owned by every industry in order to carry out statutory obligations, namely the Decree of the State Minister for Environment and Forestry No. 16 of 2019 concerning the second amendment to the regulation of the minister of environment No. 5 years 2014 concerning wastewater quality standards. PT Chemitra Abadi evaluated the existing wastewater treatment facilities and found several problems, especially the color and high turbidity, and the configuration of the treatment system that was not properly configured. After the jar test was carried out to determine the optimum dose of chemical treatment to be used, the optimum dose was obtained for 100 ppm PAC, 7 ppm anionic polymer, 250 ppm DCA and 200 ppm NaOH. Then provide suggestions for alternative configurations of wastewater treatment facilities that can be used by utilizing existing facilities by changing the process sequence. "

"Waste water treatment facility atau instalasi pengolahan air limbah merupakan salah satukomponen penunjang yang harus dimiliki oleh setiap industri dalam rangkamelaksanakan kewajiban undang-undang yaitu Keputusan Mentri Negara LingkunganHidup dan Kehutanan No 16 tahun 2019 tentang perubahan kedua atas peraturan menterilingkungan hidup No 5 tahun 2014 tentang baku mutu air limbah. PT Chemitra Abadimelakukan evaluasi terhadap fasilitas pengolahan air limbah yang sudah ada dan menemukanbeberapa permasalahan terutama warna dan turbidity yang masih tinggi, konfigurasi sistempengolahan yang tidak sesuai dengan semestinya. Setelah dilakukan jartest untuk menentukandosis optimum chemical treatment yang akan digunakan maka didapat dosis optimum untuk PAC100 ppm, Polimer anionic 7 ppm, DCA 250 ppm dan NaOH 200 ppm. Kemudian memberikansaran konfigurasi alternatif fasilitas pengolahan air limbah yang dapat digunakan denganmemanfaatkan fasilitas yang ada dengan merubah urutan proses.

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The treatment facility or wastewater treatment installation is one of the

supporting components that must be owned by every industry in order to carry out

statutory obligations, namely the Decree of the State Minister for Environment and

Forestry No. 16 of 2019 concerning the second amendment to the regulation of the

minister of environment No. 5 years 2014 concerning wastewater quality standards. PT

Chemitra Abadi evaluated the existing wastewater treatment facilities and found several

problems, especially the color and high turbidity, and the configuration of the treatment

system that was not properly configured. After the jar test was carried out to determine

the optimum dose of chemical treatment to be used, the optimum dose was obtained for

100 ppm PAC, 7 ppm anionic polymer, 250 ppm DCA and 200 ppm NaOH. Then

provide suggestions for alternative configurations of wastewater treatment facilities that

can be used by utilizing existing facilities by changing the process sequence."

"In a power supply (PLTU) located in West Sumatera Barat, water is massively utilized for boiler feed, chiller fire fighters, service water, and drinking water. This need is supplied by a river nearby as the only source. This raw water is subject to a pre-treatment unit to remove the contaminants.

This research was aimed to design a raw water pre treatment unit for utility in the power supply and to compare with the existing and operating treatment unit. The feed flow rate is 1,160 m3/hour. The design objective was to remove TSS pathogenic bacteria, and turbidity using coagulation, flocculation, sedimentation, disinfectant, and ultra filtration membrane. Static miter was used with pipe diameter I6 in. Flocculator has tubular size of (2x2) m3 with t00 m length. Clarifier was a horizontal flow type with surface of (40x20) m2 and depth 5,8 m. This clarifier has surface loading flow rate of 35 m3/m2 .d weir loading 250 m?/m.a' with weir length of 111,4 m. Ultra-filtration membrane treats only 30% of feed water (50 lmh flux) and need surface area of 13,290 m2. From the comparison we found that we do not the screening. Furthermore, we should modify the flocculator and clarifier, and replace the sand filtration unit with ulrraqiltration membrane."

"Bidang konstruksi sedang mengalami kenaikan yang cukup tajam pada beberapa tahun ini.Peningkatan ini mempengaruhi meningkatnya timbulan limbah konstruksi yang cukup merugikan. Pengolahan limbah konstruksi ini merupakan salah satu alternatif pengurangan dampak limbah tersebut.Dilakukan pengamatan dengan survey serta perhitungan mengenai Life Cycle Inventory dan perhitungan ekonomis tentang pengolahan limbah konstruksi pada Material Recovery Facility (MRF) untuk mengevaluasi kinerja dari MRF tersebut, menganalisa efisiensi kinerja dari ailiran material pada MRF, serta mengetahui besarnya manfaat yang dapat diperoleh dan kerugian yang dapat dikurangi. Dalam proses peninjauan, MRF ini mengolah 77,61% limbah yang dikelola dengan didominasi oleh limbah puing dan dapat digunakan kembali sebagai tanah urugan.Didapatkan hasil bahwa pengolahan MRF ini mengalami kerugian sebesar Rp.25.275.000,- pada bulan Februari 2014, namun jika ditinjau dalam jangka waktu setahun, MRF ini mendapatkan keuntungan sebesar Rp 53.400.000,-.

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Construction subject has a significant increasing for recent years. The increasing of the construction increase the construction waste generated which has some destructive impact. The treatment of the construction waste is one of alternatives to decrease the impact. The survey, Life Cycle Inventoryand economic calculation about the treatment of construction waste with Material Recovery Facility (MRF) is held to evaluate the performance of MRF, analyze the efficiency of flow material in MRF and know the benefit gained and the deficit reduced. This MRF treats 77.61% construction waste generatedwhich dominated by concrete waste and produces secondary material which is used as a land heap. As the result, the treatment with MRF is deficit Rp. 25.275.000,- in February 2014, but when we review it on a whole year, the MRF can get the benefit around Rp 53.400.000,-."

"Instalasi Pengolahan Air Limbah PT. Kimia Farma Plant Jakarta mengolah air limbah yang berasal dari kegiatan produksi obat, pencucian, limbah domestik yang menggunakan proses biologis dengan metode anaerob-aerob. Setelah 20 tahun beroperasi, IPAL tidak pernah dicek kesesuaian parameter disain unit pengolahannya sehingga harus dilakukan evaluasi untuk meningkatan efisiensinya. Evaluasi dilakukan dengan menghitung parameter-parameter disain pada kondisi eksisting dan membandingkannya dengan kriteria disain padaliteratur.Hasilnya yaitu efisiensi pengolahan keseluruhan penyisihan BOD=91%, COD=88%, TSS=96% dan telah masuk kriteria disain. Selain itu, terdapat beberapa parameter yang tidak masuk rentang kriteria disain diantaranya waktu tinggal dan organic loading (bak anaerob), F/M dan MLSS (bak aerob), overflow rate (bak sedimentasi). Sehingga pada perhitungan keseuaian kondisi rencana IPAL, bak anaerob tidak difungsikan dan dilakukan beberapa kontrol perbaikan agar mencapai nilai kinerja MLSS 4000 mg/L, F/M Ratio 0,076, kebutuhan udara 4195,37 m3/day, overflow rate 8,182 m3/m2.h.

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Wastewater Treatment Plant of PT Kimia Farma Jakarta processesinfluent from the units of producingdrugs and washing equipment. It also processes waste water from biological process using anaerobic-aerobic method.After 20 years of operation, WWTP of PT Kimia Farma Plant Jakarta have never checked the suitability of the design parameters and the application in each unit, so that should have been done to improve the efficiency of The WWTP. An evaluation is conducted by calculating the design parameters on existing conditions and comparing it to the design criteria?s literature. The results of the overall processing efficiency in removal BOD were : 91%, COD: 88%, TSS: 96%.Moreover, there are several parameters that are not in the range of design criteria such as residence time and organic loading (unit of anaerobic), the F/M ratio and MLSS (unit of aerobic), overflow rate (unit of sedimentation). So that in the planning process, anaerobic unit was not used. Then, the writer used some improvements to achieve the performance value of MLSS 4000 mg/L, the F/M Ratio 0,076, aeration air demand 4195,37 m3/day, overflow rate 8,182 m2 m3/h."

"Pengelolaan sampah di Jakarta bergantung pada landfill TPST Bantargebang yang mendekati kapasitas maksimumnya. Pemerintah Provinsi DKI Jakarta berencana membangun ITF Sunter dengan dua alternatif teknologi, Mechanical Biological Treatment (MBT) dan Pengolahan Sampah Menjadi Energi Listrik (PSEL) dengan insinerasi. Namun, keberlanjutan MBT dan PSEL dari segi ekonomi, lingkungan, dan sosial di ITF Sunter belum diketahui. Tujuan penelitian adalah untuk mengetahui keberlanjutan dari ITF Sunter. Metode penelitian yang digunakan adalah metode campuran yang terdiri atas metode kualitatif dan kuantitatif. Hasil penelitian menunjukkan nilai BCR dari teknologi PSEL sebesar 1,479 dan MBT sebesar 1,091. Metode AHP dilakukan pada kriteria kelembagaan, efektivitas, perbandingan biaya manfaat, dan produk pengolahan, PSEL memiliki bobot penilaian tertinggi dengan nilai 0,565 dibandingkan MBT dan landfill, sehingga PSEL berpotensi lebih berkelanjutan dari MBT dari sisi lingkungan, ekonomi, dan sosial. Kesimpulan yang didapat, ITF Sunter dengan teknologi PSEL memiliki nilai keberlanjutan lebih tinggi dibandingkan dengan teknologi MBT dalam waktu 25 tahun

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Jakarta is dependent on Bantargebang landfill which is approaching its maximum capacity. Provincial Government of Jakarta plans to build ITF Sunter with two technology alternatives, Mechanical Biological Treatment (MBT) and Waste-to-Energy with Incinerator. However, the economic, environment, and social sustainability of MBT and Incinerator in ITF Sunter has not been analysed. The research objective is to determine the sustainability of ITF Sunter. The research method used is a mixed between qualitative and quantitative methods. The results showed BCR of incinerator was 1,479 and MBT was 1,091. AHP is conducted on four criteria consisting of institution, effectiveness, cost-benefit analysis, and processing products, incinerator has the highest weighting value of 0,565 compared to MBT and landfill, incinerator has higher sustainability potential compared to MBT in terms of economic, sosial, and environmental sustainability. The conclusion is ITF Sunter with incineration has a higher sustainable potential than MBT within a span of 25 years."

"Seiring dengan perkembangan listrik modern dan perkembangan beban listrik yang semakin kompleks, terutama penggunaan beban non linear maka semakin mempengaruhi kualitas daya listrik yang akan dihasilkan. Pada dunia industri khususnya pada area Waste Water Treatment Plant Lippo Cikarang, pemakaian beban non linear terbesar adalah dengan penggunaan motor listrik. Motor listrik dikontrol melalui Variable Freuqency Drive agar tercipta optimalisasi pada kebutuhan beban. Akan tetapi hal tersebut menimbulkan permasalahan kualitas daya yang diantaranya adalah permasalahan faktor daya dan harmonisa. Efek dari penggunaan alat –alat tersebut yaitu menimbulkan permasalahan kualitas daya (power quality) yaitu berupa munculnya gangguan harmonisa dalam sistem tenaga listrik yaitu pada Bus Eqyualization THDV 28,63% Bus Aeration THDV 36,78 % dan Bus Netralization 30,76 %, Hal ini berdampak pada profil tegangan yang drop mencapai 15% pada feeder bus tersebut. Untuk meningkatkan efisensi dan mengatasi permasalah tersebut maka kan digunakan single tuned filter harmonic untuk meredam gelombang harmonisa Hasil Desain passive filter yang didapatkan akan disimulasikan dengan menggunakan software ETAP 12.6. Hasil dari penelitian ini menunjukkan bahwa penggunaan filter pasif single tuned yang didesain saat konfigurasi belum terintergrasi dapat mengurangi nilai harmonisa yang ditimbulkan sehingga memenuhi standar IEEE Std. 519-1992, dimana Setelah difilter THDV bus aeration bus menjadi 4,22 , THDV equalization bus menjadi 2,86, dan THDV THDV bus netralization menjadi 4,99.

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The development of modern electricity and the development of increasingly complex electrical loads, especially the use of non-linear loads, it will increasingly affect the quality of electrical power that will be generated. In the industrial world, especially in the Lippo Cikarang Waste Water Treatment Plant area, the largest use of non-linear loads is the use of electric motors. The electric motor is controlled through a Variable Frequency Drive to optimize load requirements. However, this causes power quality problems, including power factor and harmonic problems. The effect of using these tools is that it causes power quality problems, namely the emergence of harmonic disturbances in the electric power system, namely on Bus Eqyualization THDV 28.63%, Bus Aeration THDV 36.78% and Bus Neutralization 30.76%. This has an impact on the voltage profile which drops up to 15% on the feeder bus. To improve efficiency and overcome these problems, a single tuned harmonic filter is used to reduce harmonic waves. The passive filter design results obtained will be simulated using ETAP 12.6 software. The results of this study indicate that the use of a single tuned passive filter which is designed when the configuration has not been integrated can reduce the resulting harmonic values so that it meets the IEEE Std standard. 519-1992, where after filtering the THDV bus aeration bus becomes 4.22, the THDV equalization bus becomes 2.86, and the THDV THDV bus neutralization becomes 4.99"

"Seiring dengan perkembangan listrik modern dan perkembangan beban listrik yang semakin kompleks, terutama penggunaan beban non linear maka semakin mempengaruhi kualitas daya listrik yang akan dihasilkan. Pada dunia industri khususnya pada area Waste Water Treatment Plant Lippo Cikarang, pemakaian beban non linear terbesar adalah dengan penggunaan motor listrik. Motor listrik dikontrol melalui Variable Freuqency Drive agar tercipta optimalisasi pada kebutuhan beban. Akan tetapi hal tersebut menimbulkan permasalahan kualitas daya yang diantaranya adalah permasalahan faktor daya dan harmonisa. Efek dari penggunaan alat-alat tersebut yaitu menimbulkan permasalahan kualitas daya (power quality) yaitu berupa munculnya gangguan harmonisa dalam sistem tenaga listrik yaitu pada Bus Eqyualization THDV 28,63% Bus Aeration THDV 36,78 % dan Bus Netralization 30,76 %, Hal ini berdampak pada profil tegangan yang drop mencapai 15% pada feeder bus tersebut. Untuk meningkatkan efisensi dan mengatasi permasalah tersebut maka kan digunakan single tuned filter harmonic untuk meredam gelombang harmonisa Hasil Desain passive filter yang didapatkan akan disimulasikan dengan menggunakan software ETAP 12.6. Hasil dari penelitian ini menunjukkan bahwa penggunaan filter pasif single tuned yang didesain saat konfigurasi belum terintergrasi dapat mengurangi nilai harmonisa yang ditimbulkan sehingga memenuhi standar IEEE Std. 519-1992, dimana Setelah difilter THDV bus aeration bus menjadi 4,22 , THDV equalization bus menjadi 2,86, dan THDV THDV bus netralization menjadi 4,99.

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The development of modern electricity and the development of increasingly complex electrical loads, especially the use of non-linear loads, it will increasingly affect the quality of electrical power that will be generated. In the industrial world, especially in the Lippo Cikarang Waste Water Treatment Plant area, the largest use of non-linear loads is the use of electric motors. The electric motor is controlled through a Variable Frequency Drive to optimize load requirements. However, this causes power quality problems, including power factor and harmonic problems. The effect of using these tools is that it causes power quality problems, namely the emergence of harmonic disturbances in the electric power system, namely on Bus Eqyualization THDV 28.63%, Bus Aeration THDV 36.78% and Bus Neutralization 30.76%. This has an impact on the voltage profile which drops up to 15% on the feeder bus. To improve efficiency and overcome these problems, a single tuned harmonic filter is used to reduce harmonic waves. The passive filter design results obtained will be simulated using ETAP 12.6 software. The results of this study indicate that the use of a single tuned passive filter which is designed when the configuration has not been integrated can reduce the resulting harmonic values ​​so that it meets the IEEE Std standard. 519-1992, where after filtering the THDV bus aeration bus becomes 4.22, the THDV equalization bus becomes 2.86, and the THDV THDV bus neutralization becomes 4.99."