scholarly journals Aplikasi Persamaan Fungsi Kuadrat Dalam Mencari Karakteristik Hubungan Antara Kecepatan Putaran Motor dengan Laju Aliran Air

2020 ◽  
Vol 21 (2) ◽  
pp. 183
Author(s):  
Bobby Demeianto ◽  
Boby Wisely Ziliwu

Water Treatment Plant called IPA 1 located on Jl. Penjernihan II No.1 Pejompongan is one of the water installations owned by a water treatment company in DKI Jakarta that operates 24 hours non-stop to produce clean water with a capacity of 2500 liters per second (2500 lps). In a Water Treatment Installation (IPA) there is a process of processing and distributing water, to distribute water needs needed auxiliary equipment that is able to supply clean water as needed. In water supply applications at water treatment plants (IPA), the need for clean water, especially in the capital city of DKI Jakarta, is increasingly increasing, making the pump's performance even greater in its distribution so that it often ignores the amount of energy used in producing and distributing clean water. Testing a distribution pump is needed to determine the working characteristics of a pump. One of the variables tested to determine the pump's working characteristics in terms of electricity is to test the relationship between the motor rotation speed used (RPM) and the flow rate of water generated from the pump (liters / second). It can be seen that if the electric motor used to rotate the pump works in a low rotation, then the electric power used will be low and vice versa. One obstacle that may be faced when we are going to do a test to find out the motor rotation characteristics with the flow rate of water, especially in a water treatment plant in Jakarta is that the distribution of water to the public should not be interrupted when we do the testing, so the data obtained will be difficult to obtain completely, especially when the motor rotates at low speed. One approach that can be taken to look for values that are not measurable is to use polynomial regression. The purpose of this study is to look for variables that cannot be measured at the time of the test, especially the water speed rate variable at each motor rotation change which is regulated by Variable Speed Drive (VSD) on motor pumps number two, three, and four using formula obtained from the coefficients of the polynomial regression method. One formula produced by this polynomial regression is Q = 0.0005 N2 - 0.2231 N - 14.101, with an R2 value of 99.79%, where Q is the water flow rate (liters / second) and N is the motor rotation speed (RPM) ).ABSTRAKInstalasi Pengolahan Air IPA 1 yang berlokasi di Jl. Penjernihan II No.1 Pejompongan merupakan salah satu instalasi air yang dimiliki sebuah perusahaan pengolahan air di DKI Jakarta yang beroperasi selama 24 jam non stop untuk menghasilkan air bersih dengan kapasitas 2500 liter per detik (2500 lps). Pada suatu Instalasi Pengolahan Air ( IPA ) terdapat proses pengolahan dan pendistribusian air, untuk mendistribusikan kebutuhan air dibutuhkan peralatan bantu yang mampu menyuplai air bersih sesuai dengan yang dibutuhkan. Dalam aplikasi penyuplaian air pada instalasi pengolahan air (IPA), kebutuhan air bersih khususnya di daerah ibu kota DKI Jakarta semakin lama semakin meningkat membuat kinerja pompa semakin besar dalam pendistribusiannya sehingga sering mengabaikan besarnya energi yang di pakai dalam menghasilkan dan mendistribusikan air bersih.  Pengujian suatu pompa distribusi diperlukan untuk mengetahui karakteristik kerja dari suatu pompa tersebut. Salah satu variable yang diuji untuk mengetahui karakteristik kerja pompa tersebut dalam hal kelistrikannya adalah dengan menguji karakteristik hubungan kecepatan putaran motor yang digunakan ( RPM ) dengan laju aliran air yang dihasilkan dari pompa tersebut ( liter / detik ). Dapat diketahui bahwa apabila motor listrik yang dipakai untuk memutar pompa bekerja dalam putaran yang rendah, maka daya listrik yang dipakai pun akan rendah begitu pula sebaliknya. Salah satu kendala yang mungkin dihadapi pada saat kita akan melakukan pengujian untuk mengetahui karakteristik putaran motor dengan laju aliran air khususnya pada suatu instalasi pengolahan air di Jakarta adalah distribusi air kepada masyarakat tidak boleh terganggu pada saat kita melakukan pengujian, sehingga data yang diperoleh akan sulit didapatkan secara lengkap khususnya pada saat motor berputar pada putaran rendah. Salah satu pendekatan yang dapat dilakukan untuk mencari nilai-nilai yang tidak terukur  tersebut adalah dengan menggunakan regresi polynomial. Tujuan dari penelitian ini adalah mencari variable-variabel yang tidak dapat terukur pada saat dilakukannya pengujian, khususnya variabel laju kecepatan air pada setiap perubahan putaran motor yang diatur oleh Variable Speed Drive ( VSD ) pada motor-pompa nomor dua, tiga, dan empat dengan menggunakan rumus yang didapatkan dari koefisien-koefisien metode regresi polynomial. Salah satu rumus yang dihasilkan dengan regresi polynomial ini adalah Q = 0.0005 N2 – 0.2231 N – 14.101, dengan nilai R2 sebesar 99,79 %, dimana variable Q merupakan laju aliran air ( liter / detik ) dan variable N merupakan kecepatan putaran motor ( RPM ).

2019 ◽  
Vol 3 (2) ◽  
pp. 61
Author(s):  
Nur Ihda Farikhatin Nisa ◽  
Achmad Aminudin

Water is one of the important components of human life or other living things. With the increasing number of residents, the need for clean water has also increased. However, this increase in demand is not offset by the availability of clean water due to the lower quality of water produced by the water treatment plant. Therefore, it is necessary to do alternative water treatment so that clean water needs can be sufficient. One method of processing clean water that can be done is the Jar test method. This study aims to determine the effect of coagulant dose addition on water quality parameters including pH, turbidity, TDS and total hardness of the Manisrejo City Madiun well water sample after water treatment. The research method is carried out through three stages, namely the preparation stage, the instrument analysis stage and the experimental stage. Where the type of coagulant used is Poly Aluminum Chloride (PAC). From the research that has been done, the optimum PAC coagulant dose is 43 mg / l. The conclusion obtained in this study is that the greater the coagulant dose added to the water sample, the smaller the pH value, the value of turbidity, the TDS value and the total hardness of the water sample.


2021 ◽  
Vol 894 (1) ◽  
pp. 012018
Author(s):  
H Gabrielle ◽  
R A Kusumadewi ◽  
Ratnaningsih

Abstract To provide drinking water in Bogor Regency, PDAM Tirta Kahuripan has several Water Treatment Plants (WTP) Kedung Halang WTP. Kedung Halang WTP consists of two water treatment packages, Indisi and Degreemont, with an average production of 37.3 L/s and 83.9 L/s, respectively. The purposes of this research are to evaluate the performance of the operating unit and process on the Degreemont Package and to provide optimisation recommendations based on the evaluation result. Steps in this research include evaluating the existing condition, providing recommendations, and analysing the quality of water produced. The evaluation found that one of the parameters did not fulfil the design criteria: the G.Td value on coagulation. The evaluation result of maximum flow rate is 125 L/s on intake, 150 L/s on coagulation, 130 L/s on flocculation and sedimentation, and 200 L/s on filtration. Thus, the optimum flow rate that can be operated is 125 L/s. The turbidity of the water produced has met the drinking water standard according to Minister of Health Regulation No. 492 of 2010, with removal efficiency above 95%. According to the result, it can be said that Degreemont Package is qualified to be applied as a drinking water treatment.


Al-Khidmah ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
RM Rustamaji ◽  
Kiki Prio Utomo ◽  
Hendri Sutrisno

An-Nur and Darussalam Boarding School use well water for bathing, washing and latrines (MCK). However, well water contains high levels of iron and manganese. Therefore, it's needed clean water treatment technology. The water treatment system consists of aeration, adsorption, and filtration. The purpose of PKM is to provide clean water for partners. The method is a participatory and collaborative method whereby partners participate in planning, socialization and training, and operation and maintenance of water treatment plant. The PKM product is easy-to-use water treatment plant and the processed water is odorless, not turbid and colorless or clear. The main key to the success of clean water treatment PKM in An-Nur and Darussalam Boarding School is good communication and smoothly between PKM team and partners.


2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Elma Sofia ◽  
Rony Riduan ◽  
Endrico Pratama

Air bersih merupakan kebutuhan dasar bagi manusia, sehingga pemenuhan kebutuhan air bersih merupakan hal yang wajib diperhatikan oleh PDAM (Perusahaan Daerah Air Minum) sebagai pihak terkait.  Dengan sistem pengolahan dan sistem jaringan perpipaan yang ada, PDAM Bandarmasih diharapkan mampu untuk memenuhi kebutuhan air bersih masyarakat yang ada di kota Banjarmasin.  Salah satu hal yang perlu diperhatikan adalah kinerja reservoir pada sistem distribusi perpipaan air bersih dari Instalasi Pengolahan Air Bersih (IPA) sampai kepada masyarakat. Penelitian ini bertujuan mengevaluasi kinerja reservoir PDAM Bandarmasih, khususnya kinerja reservoir S. Parman yang merupakan reservoir distribusi yang melayani distribusi air bersih ke zona 1 dan zona 4 wilayah layanan IPA (Instalasi Pengolahan Air) I PDAM Bandarmasih.  Pada penelitian ini digunakan perangkat lunak Epanet 2.0 sebagai alat bantu pemodelen hidrodinamika sistem distribusi air bersih.  Berdasarkan hasil simulasi dengan menggunakan Epanet 2.0, pada saat jam puncak 06.00 reservoir S. Parman mampu melayani kebutuhan air bersih masyarakat dan node terjauh mempunyai tekanan terendah 11,21 m dengan tinggi muka air terendah reservoir S. Parman terjadi pada jam 09.00 yaitu 0,75 m. Secara umum, reservoir masih mampu memenuhi kebutuhan air bersih pelanggan khususnya pada saat jam puncak. Kata kunci: Epanet, jaringan distribusi air bersih, PDAM, reservoir.   Clean water is a basic need for humans, requirement of clean water is considered important by the PDAM (Regional Water Company) as a related party. With the existing treatment system and piping network system, Bandarmasih PDAM is expected to be able to meet the community's clean water needs in Banjarmasin city. One of crucial things is the performance of reservoir in piped water distribution system from the Clean Water Treatment Plant.This study aims to evaluate the reservoir performance of the Bandarmasih PDAM, specifically the performance of S. Parman reservoir, which is a distribution reservoir that serves the distribution of clean water to zone 1 and zone 4 of the Water Treatment Plant (IPA) I PDAM Bandarmasih. In this study Epanet 2.0 software was used as a hydrodynamic modelling tool. Based on the simulation results, at peak hours 06.00 a.m. reservoir S. Parman is able to serve the community's clean water needs. The farthest node has the lowest pressure of 11.21 m, and the lowest water level of the reservoir S. Parman occurs at 09.00 a.m. which is 0.75 m. In general, the reservoir is still able to meet community's clean water needs, especially during peak hours. Keywords: reservoir, clean water distribution network, Epanet, PDAM


Author(s):  
M. Shuvalov ◽  
A. Strelkov ◽  
S. Shuvalov

Приводятся статистические данные за период 12лет по качеству воды в реке Большой Кинель в створе водозабора г. Кинель Самарской области и процедуре назначения расчетных параметров сооружений при проектировании новой станции водоподготовки. Принятая проектом технологическая схема предусматривает следующие процессы: процеживание на микрофильтрах, озонирование, известково-содовое умягчение, коагулирование, отстаивание в осветлителях со взвешенным слоем осадка, фильтрование и обеззараживание. В составе сооружений реагентного хозяйства спроектированы: установка введения порошкообразного активного угля в обрабатываемую воду перед скорыми фильтрами установка введения соляной кислоты для корректировки величины рН очищенной воды сооружения повторного использования воды, сгущения осадка и его механического обезвоживания. Строительство пускового комплекса станции водоподготовки завершено. Для выполнения расчета сооружений станций водоподготовки предлагается назначать три комбинации значений расчетных параметров расхода воды и качества (концентрации определяющих ингредиентов) исходной воды в зависимости от типа сооружения или технологического оборудования.Statistical data over a period of 12 years on the quality of water in the Bolshoi Kinel River at the water intake of the Kinel city of the Samara Region and the procedure for allocating design parameters to the structures while designing a new water treatment plant are provided. The process flow scheme adopted by the project provides for the following processes: screening in microfilters, ozonation, lime-soda softening, coagulation, sedimentation in clarifiers with sludge blanket, filtration and disinfection. The following facilities were designed as part of the chemical treatment facilities: a unit for introducing powdered activated carbon into the treated water before rapid filters hydrochloric acid injection unit for adjusting pH value of purified water water reuse facilities, sludge thickening and mechanical dewatering facilities. The construction of the start-up package of the water treatment plant has been completed. To carry out the calculation of the structures of water treatment plants, allocating three combinations of the values of the calculated parameters water flow rate and quality (concentration of determining ingredients) of the source water depending on the type of structure or process equipment is proposed.


Al-Khidmah ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Eka Priadi ◽  
Johnny Maruli Tua Sitompul

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.


2019 ◽  
Vol 7 (1) ◽  
pp. 020
Author(s):  
Suhendra Suhendra ◽  
Daud Perdana

Residents in Sambas Regency generally utilizing well water and river water to meet the needs of clean water. One of the materials that used in processing of clean water is sand clamshell. The Sand clamshell is used because the abundant availability and is often found along the coast, but its effectiveness has not been tested. The object of this research is to test the effectiveness of sand clamshell in reducing color levels and increasing the pH value of peat water. When the water coming out of the installation was varied into 9 treatments, namely 0, 5, 10, 20, 40, 60, 90, 180 and 360 minutes. Based on the test results, sand clamshell is effective used to treat peat water into clean water. The best test results for sand clamshell are obtained when the water first exits from water treatment plant (0 minutes) with the effectiveness of color absorption of 29.9%, from 1,420 Pt.Co to 995 Pt.Co, while pH increases from 4.23 to 7.38. The effectiveness of the sand clamshell has decreased with the length of time in the processing of peat water. Masyarakat di Kabupaten Sambas umumnya memanfaatkan air sumur dan air sungai untuk memenuhi kebutuhan air bersih. Salah satu media yang digunakan dalam mengolah air bersih adalah pasir kerang. Pasir kerang digunakan karena ketersediannya yang melimpah dan banyak ditemui di sepanjang pesisir pantai, namun pengujian efektivitasnya masih belum dilakukan. Penelitian ini bertujuan untuk menguji efektivitas pasir kerang dalam menurunkan kadar warna dan meningkatkan nilai pH air gambut. Waktu air keluar dari instalasi divariasikan menjadi 9 perlakuan yaitu 0, 5, 10, 20, 40, 60, 90, 180 dan 360 menit. Berdasarkan hasil pengujian, pasir kerang efektif digunakan untuk mengolah air gambut menjadi air bersih. Hasil pengujian terbaik untuk pasir kerang diperoleh pada saat air pertama kali keluar dari instalasi pengolah air (0 menit) dengan efektivitas penjerapan warna 29,9% yaitu dari 1.420 Pt.Co menjadi 995 Pt.Co, sedangkan pH mengalami peningkatan dari 4,23 menjadi 7,38. Efektivitas kerja pasir kerang mengalami penurunan seiring dengan lamanya penggunaan pasir kerang dalam pengolahan air gambut.


2019 ◽  
Vol 20 (2) ◽  
pp. 60
Author(s):  
Kukuh Karyadi ◽  
Jatmiko Endro Suseno

Kukuh Karyadi, Jatmiko Endro Suseno in this paper explain that Water is a necessity of life that is very important for mankind. The availability of clean water has been sought to be fulfilled in various ways. One of them is by making a clean water treatment plant that can process water that is not yet suitable for consumption to be more feasible and ready to be consumed for everyday life. The operation of water treatment plant is still manually operated such as in the Iron Removal Filter (IRF) control system so that the processing is not easy to operate. To facilitate the operation of a clean water treatment unit, a control system based on a Programmable Logic Controller (PLC) is created on the Iron Removal Filter (IRF) processing unit. Control system consisting of PLC, relay circuit, power supply and Human Machine Interface (HMI), works to control the clean water processing unit including controlling the process on the IRF automatically. Also made a prototype of a water treatment plant consisting of an aerator unit, an IRF unit, a storage tank, several pumps and several control valves to be controlled by the control system in operation. The control system uses PLC as a control center because PLC is a controller that is simple, easy to program and very reliable as already widely used in the industrial world. The PLC brand used is Omron because it is cheap, reliable and has software named CX-Programmer which is easy in programming. The control system uses laptop computer as an HMI in the operation. HMI uses VTScada software and is connected to a PLC using OPC CX-Server software. The control system that is made can control the clean water processing unit in the form of a prototype. Operation on HMI is so easy and has a very attractive appearance. So it is highly recommended to be used in the actual clean water treatment unit


2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Heru Dwi Wahjono

Industrial area represents location where some industries operate in one same area region. Usually an industrial area besides there are factory also there are office and housing. To fulfill domestic clean water required by housing and office, usually the organizer of industrial area have developed a Water Treatment Plant (WTP) with source of raw water which come from a river emitting a stream of around area. The increasing of domestic clean water needs has pushed management to increase the production of clean water by the existing WTP. Besides that, to increase the quality of clean water service to the domestic exist in industrial area, hence felt important to develop a system of SCADA to manage existing process in the WTP. As step early is to identify and plan the design system of SCADA for domestic WTP. From the result of development planning, the SCADA can be developed step by step according to the project plan and existing budget. Kata kunci : Water Treatment Plant (WTP), Instalasi Pengolahan Air (IPA), Kebutuhan Air Bersih Domestik Perumahan, Supervisory Control And Data Acquisition (SCADA).


2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Heru Dwi Wahjono

The need for clean water in big cities is very dependent on water supply by water companies (PDAM). The increasing demand for clean water in big cities is proportional to the increasing of number population and industry, but not comparable to the clean water supply and quality of raw water available. PDAM has made various efforts to improve the quality of clean water services to the community. One of the effort is to improve the performance of water treatment plant (WTP). To support the improvement of the performance of WTP, required water quality monitoring at the intake location in use. This paper discusses the online and realtime water quality monitoring at the water intake location using a multi-probe digital sensor and GSM technology. This observation data is used as a comparative data analysis of laboratory data on raw water source PDAM Taman Kota (Cengkareng Drain). Keywords: air baku air minum, intake PDAM Taman Kota Cengkareng Drain, pemantuan kualitas air, multi probe digital sensor, teknologi online monitoring, Water Treatment Plant


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