scholarly journals Masalah dan Optimasi Rapid Sand Filter

2021 ◽  
Author(s):  
Gede H Cahyana
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Unit Operation ◽  
Sand Filter ◽  
Operation And Maintenance ◽  
Water Company ◽  
Crucial Problem

Rapid Sand Filter is the most popular unit operation in water treatment plant although it has some problems in its operation and maintenance. But this filter is used widely in Indonesia by PDAM, a water company, because of its capability to treat big capacity of water. The crucial problem is backwashing, about the upflow velocity in theoretical and practical aspects.

scholarly journals ANALISA KINERJA MESIN WTP MENGGUNAKAN METODE FMEA DAN PENJADWALAN PREVENTIF MAINTENANCE

2019 ◽  
Vol 17 (1) ◽  
pp. 15-25
Author(s):  
M. Nushron Ali M ◽  
Antonius Kusuma
Keyword(s):  
Water Treatment ◽  
Failure Mode ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Time To Failure ◽  
Bag Filter ◽  
Sand Filter ◽  
Mean Time Between Failure ◽  
Cartridge Filter ◽  
Mean Time

Ketersediaan air murni merupakan kebutuhan pokok perusahaan, yang menjadi salah satu syarat utama untuk proses produksi agar perusahaan dapat memproduksi krimer. Dalam memenuhi kebutuhan produksi perusahaan harus memiliki Water Treatment Plant dengan kinerja yang baik. Water Treatment Plant yang baik dapat menghasilkan air murni yang banyak sehingga dapat memenuhi kebutuhan air yang diperlukan oleh Perusahaan. Penelitian ini sangat diperlukan untuk mendapatkan kinerja Water Treatment Plant yang baik untuk meningkatkan hasil air murni Perusahaan XYZ. Penilitian ini menggunakan metode Failure Mode and Effects Analysis(FMEA) untuk mengklasifikasi komponen  mana yang membutuhkan perawatan dan penjadwalan. Penjadwalan di penelitian ini menggunakan metode Realibility Center Maintenance (RCM). Dalam penelitian ini menghasilkan Mean Time To Trepair ( MTTR ) sandfilter 0,48 jam, bag filter 0,68 jam, cartridge filter 1,22 jam. Mean Time To Failure (MTTF ) sand filter 684 jam, bag filter 190,3 jam, cartridge filter 236,8 jam. Dan MTBF sandfilter dengan rata-rata 708 jam, bag  filter dengan rata-rata 214,8 jam dan cartridge filter dengan rata-rata 260,8 jam per tahun. Selain MTTR, MTTF dan Mean Time Between Failure (MTBF )hasil penilitian lainnya ialah keandalan (realibility) sand filter dengan nilai 0,178, bag filter dengan nilai 0,0053, dan cartridge filter dengan nilai 0,00889.

scholarly journals Pengolahan Air Bersih di Pondok Pesantren As – Shiddiqiyyah dan Panti Asuhan Al-Haq Kecamatan Sungai Kakap Kabupaten Kubu Raya

Al-Khidmah ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Eka Priadi ◽  
Johnny Maruli Tua Sitompul
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Boarding School ◽  
Well Water ◽  
Clean Water ◽  
High Iron Content ◽  
Good Communication ◽  
Operation And Maintenance ◽  
And Training

As – Shiddiqiyyah Boarding School and Al-Haq orphanage have shortage of clean water. Both of partners used well water for bathing, washing and latrines (MCK). Well water quality is bad because it contains high iron content. Therefore, a water treatment plant is needed that is capable of processing well water so it is safe to use. Water treatment design consists of aeration, adsorption, and filtration. The processing capacity is 1100-1550 liters. The method is a parcipatory and collaborative method whereby santri and orphanage children participate in activities such as socialization and training, operation and maintenance of clean water treatment plants. In addition, the water treatment guidebook is designed to facilitate the operation and maintenance of clean water installations. PKM runs smoothly and partners have high amino activity. The evident from the positive partner response and good communication between the participants and the team of devotion.

scholarly journals The Effect of Alum as Filter Conditioner on the Performance of Conventional Rapid Sand Filter

2020 ◽  
Vol 9 (3) ◽  
pp. 1916-1920
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Turbidity Removal ◽  
Sand Filter ◽  
Unit Process ◽  
Filter Performance ◽  
The Impact ◽  
Filter Aid

Filtration is a one of the most important and critical unit process followed worldwide which removes dirt particles from water. As the water quality standards are changing and becoming more stringent, the improvement in the performance of existing rapid sand filters is unavoidable. The use of filter conditioning to improve filter performance is a relatively recent development in drinking water treatment. Different advantages claimed by such use of filter aid includes lessening ripening period, superior turbidity removal and relatively stable filtrate quality. It also has limitations like reduction in filter run and comparatively higher back washing requirement. To assess the suitability of such method,under the existing conditions is of enormous importance.12 Current research explains the impact of filter media conditioning on the overall performance of conventional rapid sand filter. The study was carried out by installing a pilot plant at Ichalkaranji municipal water treatment plant. Different doses of alum as filter conditioner were tested and the comparison was made with the performance of conventional filter without filter aid. The parameters for evaluation were turbidity removal, filter run and backwash requirements. The dose of alum as filter conditioner was given as slug dose. The effect of zeta (ζ) potential change was observed to be one of the major reasons of the performance improvement, accelerating the surface removal since initial phase

scholarly journals Metagenomic profiling of ammonia- and methane-oxidizing microorganisms in a Dutch drinking water treatment plant

2020 ◽  
Author(s):  
Lianna Poghosyan ◽  
Hanna Koch ◽  
Jeroen Frank ◽  
Maartje A.H.J. van Kessel ◽  
Geert Cremers ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Microbial Communities ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Water Production ◽  
Sand Filter ◽  
Clade B ◽  
Drinking Water Production

AbstractElevated concentrations of ammonium and methane in groundwater can cause severe problems during drinking water production. To avoid their accumulation, raw water in the Netherlands, and many other countries, is purified by sand filtration. These drinking water filtration systems select for microbial communities that mediate the biodegradation of organic and inorganic compounds. In this study, the active layers and wall biofilm of a Dutch drinking water treatment plant (DWTP) were sampled at different locations along the filtration units of the plant over three years. We used high-throughput sequencing in combination with differential coverage and sequence composition-based binning to recover 56 near-complete metagenome-assembled genomes (MAGs) with an estimated completion of ≥70% and with ≤10% redundancy. These MAGs were used to characterize the microbial communities involved in the conversion of ammonia and methane. The methanotrophic microbial communities colonizing the wall biofilm (WB) and the granular material of the primary rapid sand filter (P-RSF) were dominated by members of the Methylococcaceae and Methylophilaceae. The abundance of these bacteria drastically decreased in the secondary rapid sand filter (S-RSF) samples. In all samples, complete ammonia-oxidizing (comammox) Nitrospira were the most abundant nitrifying guild. Clade A comammox Nitrospira dominated the P-RSF, while clade B was most abundant in WB and S-RSF, where ammonium concentrations were much lower. In conclusion, the knowledge obtained in this study contributes to understanding the role of microorganisms in the removal of carbon and nitrogen compounds during drinking water production. We furthermore found that drinking water treatment plants represent valuable model systems to study microbial community function and interaction.HighlightsMicrobial distribution was mainly influenced by sampling location within the DWTPClade A comammox Nitrospira were the dominant nitrifiers in the primary sand filterClade B was most abundant in samples from wall biofilm and the secondary filterA novel Methylophilaceae-affiliated methanotroph dominated the primary sand filter

scholarly journals ANALISIS DESAIN STATIC MIXER PIPE UNTUK MENINGKATKAN PROSES KOAGULASI DI EXTERNAL WATER TREATMENT PLANT (WTP)

2020 ◽  
Vol 2 (2) ◽  
pp. 95-106
Author(s):  
Riyan Ariyansah ◽  
Istianto Budhi Rahardja ◽  
Adhes Gamayel
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Head Loss ◽  
Water Tank ◽  
Static Mixer ◽  
Sand Filter ◽  
Total Head ◽  
External Water ◽  
Tank Water

Di pabrik kelapa sawit, Water Treatment Plant adalah stasiun yang digunakan khusus untuk melakukan proses pengolahan air. Adapun tahapan-tahapan dari proses pengolahannya adalah dari sungai, waduk (reservoir) untreated tank, clarifier tank, water basin, sand filter, treated water tank dan selanjutnya dikirim untuk domestik dan air untuk kebutuhan dalam pengoperasian Boiler. Kualitas air yang dihasilkan sangat tergantung bagaimana cara pengolahan dan jumlah chemical yang dibutuhkan dalam kg/jam, dan kinerja dari chemical juga dipengaruhi oleh desain dari Water Treatment Plant itu sendiri. Adapun jenis chemical yang ada pada pengolahan air di Water Treatment Plant adalah untuk koagulan digunakan alum (Nalco 3276) sebagai pembuat flock dan utuk  flokulasi digunakan Nalco 8173. Untuk meningkatkan kerja dari Nalco 3276 sebagai pembuat flock adalah dengan cara menyebarkan keseluruh bagian sisi pipa dan menurunkan laju kecepatannya sehingga flocknya dapat terbentuk secara sempurna dan juga memudahkan kerja dari Nalco 8173 sebagai penjaring atau penangkap flock. Dengan alasan ini dibuatlah sebuah alat guna menunjang kinerja dari Nalco 3276 yaitu Static Mixer Pipe sebagai pengaduk dan menaikkan turbulensi dari Re 95.808,800 hingga menjadi Re 191.912,2400. Sedangkan penambahan Head loss yang terjadi adalah sebesar 0,4542 m dari total Head loss desain awal yaitu 5,343 m. Penambahan Static Mixer Pipe akan menghasilkan dua kali pengadukan yang lebih besar dari aliran turbulen yang terjadi sehingga akan menghasilkan pembentukan flock yang lebih banyak sehingga menghasilkan kualitas air yang lebih baik untuk proses pengolahan air di pabrik minyak kelapa sawit (PMKS).

scholarly journals ANALISA KINERJA MESIN WTP MENGGUNAKAN METODE FMEA DAN PENJADWALAN PREVENTIF MAINTENANCE

2019 ◽  
Vol 17 (1) ◽  
pp. 15-25
Author(s):  
M. Nushron Ali M ◽  
Antonius Kusuma
Keyword(s):  
Water Treatment ◽  
Failure Mode ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Time To Failure ◽  
Bag Filter ◽  
Sand Filter ◽  
Mean Time Between Failure ◽  
Cartridge Filter ◽  
Mean Time

Ketersediaan air murni merupakan kebutuhan pokok perusahaan, yang menjadi salah satu syarat utama untuk proses produksi agar perusahaan dapat memproduksi krimer. Dalam memenuhi kebutuhan produksi perusahaan harus memiliki Water Treatment Plant dengan kinerja yang baik. Water Treatment Plant yang baik dapat menghasilkan air murni yang banyak sehingga dapat memenuhi kebutuhan air yang diperlukan oleh Perusahaan. Penelitian ini sangat diperlukan untuk mendapatkan kinerja Water Treatment Plant yang baik untuk meningkatkan hasil air murni Perusahaan XYZ. Penilitian ini menggunakan metode Failure Mode and Effects Analysis(FMEA) untuk mengklasifikasi komponen  mana yang membutuhkan perawatan dan penjadwalan. Penjadwalan di penelitian ini menggunakan metode Realibility Center Maintenance (RCM). Dalam penelitian ini menghasilkan Mean Time To Trepair ( MTTR ) sandfilter 0,48 jam, bag filter 0,68 jam, cartridge filter 1,22 jam. Mean Time To Failure (MTTF ) sand filter 684 jam, bag filter 190,3 jam, cartridge filter 236,8 jam. Dan MTBF sandfilter dengan rata-rata 708 jam, bag  filter dengan rata-rata 214,8 jam dan cartridge filter dengan rata-rata 260,8 jam per tahun. Selain MTTR, MTTF dan Mean Time Between Failure (MTBF )hasil penilitian lainnya ialah keandalan (realibility) sand filter dengan nilai 0,178, bag filter dengan nilai 0,0053, dan cartridge filter dengan nilai 0,00889.

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